./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.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 fb94c2fb6abf8f6e03775b6f065b6f69f3e093cdc1a36a25e63dc191517ab003 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 15:01:05,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 15:01:05,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 15:01:05,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 15:01:05,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 15:01:05,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 15:01:05,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 15:01:05,428 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 15:01:05,430 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 15:01:05,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 15:01:05,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 15:01:05,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 15:01:05,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 15:01:05,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 15:01:05,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 15:01:05,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 15:01:05,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 15:01:05,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 15:01:05,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 15:01:05,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 15:01:05,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 15:01:05,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 15:01:05,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 15:01:05,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 15:01:05,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 15:01:05,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 15:01:05,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 15:01:05,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 15:01:05,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 15:01:05,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 15:01:05,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 15:01:05,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 15:01:05,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 15:01:05,452 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 15:01:05,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 15:01:05,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 15:01:05,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 15:01:05,454 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 15:01:05,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 15:01:05,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 15:01:05,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 15:01:05,456 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 15:01:05,475 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 15:01:05,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 15:01:05,475 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 15:01:05,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 15:01:05,476 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 15:01:05,476 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 15:01:05,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 15:01:05,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 15:01:05,477 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 15:01:05,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 15:01:05,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 15:01:05,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 15:01:05,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 15:01:05,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 15:01:05,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 15:01:05,478 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 15:01:05,478 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 15:01:05,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 15:01:05,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 15:01:05,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 15:01:05,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 15:01:05,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 15:01:05,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 15:01:05,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 15:01:05,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 15:01:05,479 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 15:01:05,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 15:01:05,479 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 15:01:05,479 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 15:01:05,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 15:01:05,480 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 15:01:05,480 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb94c2fb6abf8f6e03775b6f065b6f69f3e093cdc1a36a25e63dc191517ab003 [2021-12-18 15:01:05,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 15:01:05,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 15:01:05,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 15:01:05,739 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 15:01:05,740 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 15:01:05,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.cil.i [2021-12-18 15:01:05,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d4a3bee8/9ef27c59d6cb4765b38c03c896be2f05/FLAG16599f194 [2021-12-18 15:01:06,623 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 15:01:06,624 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.cil.i [2021-12-18 15:01:06,681 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d4a3bee8/9ef27c59d6cb4765b38c03c896be2f05/FLAG16599f194 [2021-12-18 15:01:06,822 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d4a3bee8/9ef27c59d6cb4765b38c03c896be2f05 [2021-12-18 15:01:06,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 15:01:06,825 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 15:01:06,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 15:01:06,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 15:01:06,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 15:01:06,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:01:06" (1/1) ... [2021-12-18 15:01:06,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b52f462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:01:06, skipping insertion in model container [2021-12-18 15:01:06,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:01:06" (1/1) ... [2021-12-18 15:01:06,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 15:01:06,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 15:01:11,357 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.cil.i[464169,464182] [2021-12-18 15:01:11,360 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.cil.i[464338,464351] [2021-12-18 15:01:11,360 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.cil.i[464505,464518] [2021-12-18 15:01:11,361 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.cil.i[464673,464686] [2021-12-18 15:01:11,385 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 15:01:11,454 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 15:01:11,833 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.cil.i[464169,464182] [2021-12-18 15:01:11,834 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.cil.i[464338,464351] [2021-12-18 15:01:11,834 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.cil.i[464505,464518] [2021-12-18 15:01:11,834 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.cil.i[464673,464686] [2021-12-18 15:01:11,843 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 15:01:12,090 INFO L208 MainTranslator]: Completed translation [2021-12-18 15:01:12,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:01:12 WrapperNode [2021-12-18 15:01:12,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 15:01:12,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 15:01:12,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 15:01:12,093 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 15:01:12,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:01:12" (1/1) ... [2021-12-18 15:01:12,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:01:12" (1/1) ... [2021-12-18 15:01:12,497 INFO L137 Inliner]: procedures = 619, calls = 3797, calls flagged for inlining = 333, calls inlined = 296, statements flattened = 8592 [2021-12-18 15:01:12,498 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 15:01:12,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 15:01:12,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 15:01:12,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 15:01:12,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:01:12" (1/1) ... [2021-12-18 15:01:12,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:01:12" (1/1) ... [2021-12-18 15:01:12,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:01:12" (1/1) ... [2021-12-18 15:01:12,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:01:12" (1/1) ... [2021-12-18 15:01:12,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:01:12" (1/1) ... [2021-12-18 15:01:12,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:01:12" (1/1) ... [2021-12-18 15:01:12,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:01:12" (1/1) ... [2021-12-18 15:01:12,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 15:01:12,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 15:01:12,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 15:01:12,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 15:01:12,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:01:12" (1/1) ... [2021-12-18 15:01:12,903 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 15:01:12,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:01:12,927 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) [2021-12-18 15:01:12,954 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 [2021-12-18 15:01:12,970 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-18 15:01:12,970 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-18 15:01:12,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 15:01:12,970 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 15:01:12,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_84 [2021-12-18 15:01:12,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_84 [2021-12-18 15:01:12,971 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-18 15:01:12,971 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-18 15:01:12,971 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-18 15:01:12,971 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-18 15:01:12,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 15:01:12,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 15:01:12,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 15:01:12,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 15:01:12,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_80 [2021-12-18 15:01:12,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_80 [2021-12-18 15:01:12,973 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-12-18 15:01:12,973 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-12-18 15:01:12,973 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-18 15:01:12,973 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-18 15:01:12,973 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-18 15:01:12,973 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-18 15:01:12,974 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_resume [2021-12-18 15:01:12,974 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_resume [2021-12-18 15:01:12,974 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_print_link_status [2021-12-18 15:01:12,974 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_print_link_status [2021-12-18 15:01:12,974 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_registers [2021-12-18 15:01:12,974 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_registers [2021-12-18 15:01:12,974 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_mii_write [2021-12-18 15:01:12,975 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_mii_write [2021-12-18 15:01:12,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 15:01:12,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 15:01:12,975 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-18 15:01:12,975 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-18 15:01:12,975 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-18 15:01:12,976 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-18 15:01:12,976 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-18 15:01:12,976 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-18 15:01:12,976 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_platform_remove [2021-12-18 15:01:12,976 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_platform_remove [2021-12-18 15:01:12,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 15:01:12,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 15:01:12,977 INFO L130 BoogieDeclarations]: Found specification of procedure enable_flow_control_ability [2021-12-18 15:01:12,977 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_flow_control_ability [2021-12-18 15:01:12,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 15:01:12,978 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-18 15:01:12,978 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-18 15:01:12,978 INFO L130 BoogieDeclarations]: Found specification of procedure set_pending_timer_val [2021-12-18 15:01:12,978 INFO L138 BoogieDeclarations]: Found implementation of procedure set_pending_timer_val [2021-12-18 15:01:12,979 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-18 15:01:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-18 15:01:12,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 15:01:12,980 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 15:01:12,980 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 15:01:12,981 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_ethtool_up [2021-12-18 15:01:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_ethtool_up [2021-12-18 15:01:12,981 INFO L130 BoogieDeclarations]: Found specification of procedure mac_wol_reset [2021-12-18 15:01:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_wol_reset [2021-12-18 15:01:12,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 15:01:12,981 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_ethtool_down [2021-12-18 15:01:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_ethtool_down [2021-12-18 15:01:12,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 15:01:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 15:01:12,981 INFO L130 BoogieDeclarations]: Found specification of procedure mac_set_vlan_cam_mask [2021-12-18 15:01:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_set_vlan_cam_mask [2021-12-18 15:01:12,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 15:01:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-18 15:01:12,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-18 15:01:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 15:01:12,982 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 15:01:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-18 15:01:12,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-18 15:01:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-18 15:01:12,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-18 15:01:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-12-18 15:01:12,982 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-12-18 15:01:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_get_opt_media_mode [2021-12-18 15:01:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_get_opt_media_mode [2021-12-18 15:01:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_tx_srv [2021-12-18 15:01:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_tx_srv [2021-12-18 15:01:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-18 15:01:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-18 15:01:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-18 15:01:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-18 15:01:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-12-18 15:01:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-12-18 15:01:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_rx_refill [2021-12-18 15:01:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_rx_refill [2021-12-18 15:01:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 15:01:12,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 15:01:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure mii_set_auto_on [2021-12-18 15:01:12,985 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_set_auto_on [2021-12-18 15:01:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 15:01:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_save_context [2021-12-18 15:01:12,986 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_save_context [2021-12-18 15:01:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-18 15:01:12,986 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-18 15:01:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 15:01:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 15:01:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 15:01:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 15:01:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 15:01:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 15:01:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 15:01:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 15:01:12,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 15:01:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 15:01:12,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 15:01:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_update_hw_mibs [2021-12-18 15:01:12,989 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_update_hw_mibs [2021-12-18 15:01:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_shutdown [2021-12-18 15:01:12,989 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_shutdown [2021-12-18 15:01:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-18 15:01:12,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-18 15:01:12,992 INFO L130 BoogieDeclarations]: Found specification of procedure setup_queue_timers [2021-12-18 15:01:12,992 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_queue_timers [2021-12-18 15:01:12,992 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-18 15:01:12,993 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-18 15:01:12,993 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-12-18 15:01:12,993 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-12-18 15:01:12,994 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_free_rd_ring [2021-12-18 15:01:12,994 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_free_rd_ring [2021-12-18 15:01:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 15:01:13,000 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 15:01:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-18 15:01:13,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-18 15:01:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_free_dma_rings [2021-12-18 15:01:13,000 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_free_dma_rings [2021-12-18 15:01:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure safe_disable_mii_autopoll [2021-12-18 15:01:13,001 INFO L138 BoogieDeclarations]: Found implementation of procedure safe_disable_mii_autopoll [2021-12-18 15:01:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-12-18 15:01:13,001 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-12-18 15:01:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure get_pending_timer_val [2021-12-18 15:01:13,001 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pending_timer_val [2021-12-18 15:01:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_unregister_notifier [2021-12-18 15:01:13,001 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_unregister_notifier [2021-12-18 15:01:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-18 15:01:13,002 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-18 15:01:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-18 15:01:13,002 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-18 15:01:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-12-18 15:01:13,002 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-12-18 15:01:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-12-18 15:01:13,002 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-12-18 15:01:13,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 15:01:13,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 15:01:13,003 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_media_mode [2021-12-18 15:01:13,003 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_media_mode [2021-12-18 15:01:13,003 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_cam_filter [2021-12-18 15:01:13,003 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_cam_filter [2021-12-18 15:01:13,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 15:01:13,004 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_probe [2021-12-18 15:01:13,004 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_probe [2021-12-18 15:01:13,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 15:01:13,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 15:01:13,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 15:01:13,004 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_pci_remove [2021-12-18 15:01:13,004 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_pci_remove [2021-12-18 15:01:13,004 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-18 15:01:13,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-18 15:01:13,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 15:01:13,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 15:01:13,005 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-18 15:01:13,005 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-18 15:01:13,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_velocity_info [2021-12-18 15:01:13,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_velocity_info [2021-12-18 15:01:13,006 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_rings [2021-12-18 15:01:13,006 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_rings [2021-12-18 15:01:13,006 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-18 15:01:13,006 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-18 15:01:13,006 INFO L130 BoogieDeclarations]: Found specification of procedure enable_mii_autopoll [2021-12-18 15:01:13,006 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_mii_autopoll [2021-12-18 15:01:13,006 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-12-18 15:01:13,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-12-18 15:01:13,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 15:01:13,007 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 15:01:13,007 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-12-18 15:01:13,007 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-12-18 15:01:13,007 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-18 15:01:13,007 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-18 15:01:13,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-18 15:01:13,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-18 15:01:13,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-12-18 15:01:13,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-12-18 15:01:13,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_79 [2021-12-18 15:01:13,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_79 [2021-12-18 15:01:13,008 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-18 15:01:13,008 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-18 15:01:13,009 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-18 15:01:13,009 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-18 15:01:13,009 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-18 15:01:13,009 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-18 15:01:13,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 15:01:13,009 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_int_opt [2021-12-18 15:01:13,009 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_int_opt [2021-12-18 15:01:13,010 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-18 15:01:13,010 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-18 15:01:13,010 INFO L130 BoogieDeclarations]: Found specification of procedure mac_set_cam_mask [2021-12-18 15:01:13,010 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_set_cam_mask [2021-12-18 15:01:13,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 15:01:13,010 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_suspend [2021-12-18 15:01:13,010 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_suspend [2021-12-18 15:01:13,010 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-12-18 15:01:13,011 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-12-18 15:01:13,011 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_get_ip [2021-12-18 15:01:13,011 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_get_ip [2021-12-18 15:01:13,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 15:01:13,011 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_get_link [2021-12-18 15:01:13,011 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_get_link [2021-12-18 15:01:13,012 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-18 15:01:13,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-18 15:01:13,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-18 15:01:13,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-18 15:01:13,012 INFO L130 BoogieDeclarations]: Found specification of procedure setup_adaptive_interrupts [2021-12-18 15:01:13,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_adaptive_interrupts [2021-12-18 15:01:13,012 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-18 15:01:13,013 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-18 15:01:13,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 15:01:13,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 15:01:13,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-18 15:01:13,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-18 15:01:13,013 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_power_state [2021-12-18 15:01:13,013 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_power_state [2021-12-18 15:01:13,014 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_close [2021-12-18 15:01:13,014 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_close [2021-12-18 15:01:13,014 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-18 15:01:13,014 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-18 15:01:13,014 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_bool_opt [2021-12-18 15:01:13,014 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_bool_opt [2021-12-18 15:01:13,014 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-18 15:01:13,015 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-18 15:01:13,015 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-18 15:01:13,015 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-18 15:01:13,015 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 15:01:13,015 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 15:01:13,015 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 15:01:13,015 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 15:01:13,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 15:01:13,016 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_free_rings [2021-12-18 15:01:13,017 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_free_rings [2021-12-18 15:01:13,019 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_intr [2021-12-18 15:01:13,020 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_intr [2021-12-18 15:01:13,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 15:01:13,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 15:01:13,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_86 [2021-12-18 15:01:13,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_86 [2021-12-18 15:01:13,020 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-18 15:01:13,020 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-18 15:01:13,021 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_remove [2021-12-18 15:01:13,022 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_remove [2021-12-18 15:01:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure check_connection_type [2021-12-18 15:01:13,022 INFO L138 BoogieDeclarations]: Found implementation of procedure check_connection_type [2021-12-18 15:01:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-12-18 15:01:13,022 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-12-18 15:01:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_rx_ring_indexes [2021-12-18 15:01:13,023 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_rx_ring_indexes [2021-12-18 15:01:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_mii_read [2021-12-18 15:01:13,023 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_mii_read [2021-12-18 15:01:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_open [2021-12-18 15:01:13,023 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_open [2021-12-18 15:01:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_give_many_rx_descs [2021-12-18 15:01:13,023 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_give_many_rx_descs [2021-12-18 15:01:13,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 15:01:13,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 15:01:13,024 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_multi [2021-12-18 15:01:13,024 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_multi [2021-12-18 15:01:13,024 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-12-18 15:01:13,024 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-12-18 15:01:13,024 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_platform_probe [2021-12-18 15:01:13,025 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_platform_probe [2021-12-18 15:01:13,025 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-18 15:01:13,025 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-18 15:01:13,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 15:01:13,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-18 15:01:13,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-18 15:01:13,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_velocity_info [2021-12-18 15:01:13,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_velocity_info [2021-12-18 15:01:13,026 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_poll_controller [2021-12-18 15:01:13,026 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_poll_controller [2021-12-18 15:01:13,026 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-12-18 15:01:13,026 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-12-18 15:01:14,075 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 15:01:14,079 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 15:01:26,267 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 15:12:02,173 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 15:12:02,197 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 15:12:02,197 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-18 15:12:02,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:12:02 BoogieIcfgContainer [2021-12-18 15:12:02,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 15:12:02,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 15:12:02,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 15:12:02,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 15:12:02,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 03:01:06" (1/3) ... [2021-12-18 15:12:02,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5bf1f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:12:02, skipping insertion in model container [2021-12-18 15:12:02,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:01:12" (2/3) ... [2021-12-18 15:12:02,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5bf1f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:12:02, skipping insertion in model container [2021-12-18 15:12:02,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:12:02" (3/3) ... [2021-12-18 15:12:02,209 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.cil.i [2021-12-18 15:12:02,213 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 15:12:02,213 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-18 15:12:02,265 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 15:12:02,270 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 [2021-12-18 15:12:02,270 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-18 15:12:02,332 INFO L276 IsEmpty]: Start isEmpty. Operand has 2831 states, 1879 states have (on average 1.2778073443320916) internal successors, (2401), 1959 states have internal predecessors, (2401), 819 states have call successors, (819), 132 states have call predecessors, (819), 131 states have return successors, (812), 788 states have call predecessors, (812), 812 states have call successors, (812) [2021-12-18 15:12:02,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-18 15:12:02,340 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:12:02,341 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:12:02,341 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)] === [2021-12-18 15:12:02,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:12:02,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1500598228, now seen corresponding path program 1 times [2021-12-18 15:12:02,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:12:02,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462806653] [2021-12-18 15:12:02,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:12:02,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:12:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:04,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:12:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:04,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:12:04,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:04,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 15:12:04,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:04,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 15:12:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:04,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 15:12:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:04,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 15:12:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:04,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:12:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:04,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:04,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:12:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:04,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:12:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:04,444 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-12-18 15:12:04,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:12:04,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462806653] [2021-12-18 15:12:04,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462806653] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:12:04,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:12:04,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:12:04,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663238990] [2021-12-18 15:12:04,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:12:04,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:12:04,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:12:04,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:12:04,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:12:04,496 INFO L87 Difference]: Start difference. First operand has 2831 states, 1879 states have (on average 1.2778073443320916) internal successors, (2401), 1959 states have internal predecessors, (2401), 819 states have call successors, (819), 132 states have call predecessors, (819), 131 states have return successors, (812), 788 states have call predecessors, (812), 812 states have call successors, (812) Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2021-12-18 15:12:05,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:12:05,043 INFO L93 Difference]: Finished difference Result 5619 states and 8115 transitions. [2021-12-18 15:12:05,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:12:05,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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 80 [2021-12-18 15:12:05,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:12:05,096 INFO L225 Difference]: With dead ends: 5619 [2021-12-18 15:12:05,096 INFO L226 Difference]: Without dead ends: 2797 [2021-12-18 15:12:05,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:12:05,130 INFO L933 BasicCegarLoop]: 3969 mSDtfsCounter, 3927 mSDsluCounter, 7922 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3942 SdHoareTripleChecker+Valid, 11891 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:12:05,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3942 Valid, 11891 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:12:05,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2021-12-18 15:12:05,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 2797. [2021-12-18 15:12:05,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 1853 states have (on average 1.262277388019428) internal successors, (2339), 1928 states have internal predecessors, (2339), 810 states have call successors, (810), 132 states have call predecessors, (810), 131 states have return successors, (807), 783 states have call predecessors, (807), 807 states have call successors, (807) [2021-12-18 15:12:05,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 3956 transitions. [2021-12-18 15:12:05,381 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 3956 transitions. Word has length 80 [2021-12-18 15:12:05,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:12:05,382 INFO L470 AbstractCegarLoop]: Abstraction has 2797 states and 3956 transitions. [2021-12-18 15:12:05,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2021-12-18 15:12:05,383 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 3956 transitions. [2021-12-18 15:12:05,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-18 15:12:05,393 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:12:05,394 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 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] [2021-12-18 15:12:05,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 15:12:05,395 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)] === [2021-12-18 15:12:05,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:12:05,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1245018073, now seen corresponding path program 1 times [2021-12-18 15:12:05,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:12:05,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070931293] [2021-12-18 15:12:05,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:12:05,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:12:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:06,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:12:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:06,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:12:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:06,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 15:12:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:06,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 15:12:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:06,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 15:12:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:06,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 15:12:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:06,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:12:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:06,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:06,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:12:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:06,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:12:06,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:06,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:12:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:06,823 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-12-18 15:12:06,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:12:06,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070931293] [2021-12-18 15:12:06,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070931293] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:12:06,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:12:06,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:12:06,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796917655] [2021-12-18 15:12:06,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:12:06,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:12:06,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:12:06,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:12:06,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:12:06,830 INFO L87 Difference]: Start difference. First operand 2797 states and 3956 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, (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) [2021-12-18 15:12:07,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:12:07,171 INFO L93 Difference]: Finished difference Result 2803 states and 3961 transitions. [2021-12-18 15:12:07,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:12:07,172 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, (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 85 [2021-12-18 15:12:07,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:12:07,193 INFO L225 Difference]: With dead ends: 2803 [2021-12-18 15:12:07,193 INFO L226 Difference]: Without dead ends: 2801 [2021-12-18 15:12:07,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:12:07,198 INFO L933 BasicCegarLoop]: 3953 mSDtfsCounter, 3904 mSDsluCounter, 7884 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3917 SdHoareTripleChecker+Valid, 11837 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:12:07,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3917 Valid, 11837 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:12:07,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2021-12-18 15:12:07,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 2801. [2021-12-18 15:12:07,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2801 states, 1856 states have (on average 1.261853448275862) internal successors, (2342), 1931 states have internal predecessors, (2342), 810 states have call successors, (810), 133 states have call predecessors, (810), 132 states have return successors, (807), 783 states have call predecessors, (807), 807 states have call successors, (807) [2021-12-18 15:12:07,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 3959 transitions. [2021-12-18 15:12:07,329 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 3959 transitions. Word has length 85 [2021-12-18 15:12:07,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:12:07,332 INFO L470 AbstractCegarLoop]: Abstraction has 2801 states and 3959 transitions. [2021-12-18 15:12:07,332 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, (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) [2021-12-18 15:12:07,332 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 3959 transitions. [2021-12-18 15:12:07,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-18 15:12:07,334 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:12:07,335 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 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] [2021-12-18 15:12:07,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 15:12:07,335 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)] === [2021-12-18 15:12:07,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:12:07,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1173976052, now seen corresponding path program 1 times [2021-12-18 15:12:07,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:12:07,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624352568] [2021-12-18 15:12:07,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:12:07,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:12:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:08,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:12:08,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:08,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:12:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:08,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 15:12:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:08,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 15:12:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:08,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 15:12:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:08,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 15:12:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:08,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:12:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:08,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:08,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:12:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:08,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:12:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:08,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:12:08,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:08,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 15:12:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:08,633 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-12-18 15:12:08,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:12:08,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624352568] [2021-12-18 15:12:08,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624352568] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:12:08,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:12:08,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:12:08,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279442004] [2021-12-18 15:12:08,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:12:08,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:12:08,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:12:08,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:12:08,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:12:08,640 INFO L87 Difference]: Start difference. First operand 2801 states and 3959 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, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 15:12:08,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:12:08,986 INFO L93 Difference]: Finished difference Result 2807 states and 3964 transitions. [2021-12-18 15:12:08,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:12:08,987 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, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 90 [2021-12-18 15:12:08,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:12:09,006 INFO L225 Difference]: With dead ends: 2807 [2021-12-18 15:12:09,006 INFO L226 Difference]: Without dead ends: 2805 [2021-12-18 15:12:09,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:12:09,009 INFO L933 BasicCegarLoop]: 3953 mSDtfsCounter, 3904 mSDsluCounter, 7884 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3916 SdHoareTripleChecker+Valid, 11837 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:12:09,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3916 Valid, 11837 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:12:09,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2805 states. [2021-12-18 15:12:09,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2805 to 2805. [2021-12-18 15:12:09,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2805 states, 1859 states have (on average 1.2614308768154923) internal successors, (2345), 1934 states have internal predecessors, (2345), 810 states have call successors, (810), 134 states have call predecessors, (810), 133 states have return successors, (807), 783 states have call predecessors, (807), 807 states have call successors, (807) [2021-12-18 15:12:09,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2805 states to 2805 states and 3962 transitions. [2021-12-18 15:12:09,168 INFO L78 Accepts]: Start accepts. Automaton has 2805 states and 3962 transitions. Word has length 90 [2021-12-18 15:12:09,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:12:09,170 INFO L470 AbstractCegarLoop]: Abstraction has 2805 states and 3962 transitions. [2021-12-18 15:12:09,171 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, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 15:12:09,171 INFO L276 IsEmpty]: Start isEmpty. Operand 2805 states and 3962 transitions. [2021-12-18 15:12:09,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-18 15:12:09,172 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:12:09,173 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 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] [2021-12-18 15:12:09,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 15:12:09,173 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)] === [2021-12-18 15:12:09,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:12:09,174 INFO L85 PathProgramCache]: Analyzing trace with hash -52021383, now seen corresponding path program 1 times [2021-12-18 15:12:09,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:12:09,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659162070] [2021-12-18 15:12:09,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:12:09,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:12:09,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:10,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:12:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:10,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:12:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:10,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 15:12:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:10,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 15:12:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:10,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 15:12:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:10,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 15:12:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:10,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:12:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:10,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:10,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:10,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:12:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:10,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:12:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:10,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:12:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:10,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 15:12:10,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:10,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 15:12:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:10,626 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-12-18 15:12:10,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:12:10,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659162070] [2021-12-18 15:12:10,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659162070] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:12:10,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:12:10,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:12:10,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996716644] [2021-12-18 15:12:10,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:12:10,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:12:10,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:12:10,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:12:10,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:12:10,629 INFO L87 Difference]: Start difference. First operand 2805 states and 3962 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) [2021-12-18 15:12:10,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:12:10,977 INFO L93 Difference]: Finished difference Result 2811 states and 3967 transitions. [2021-12-18 15:12:10,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:12:10,978 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 95 [2021-12-18 15:12:10,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:12:10,998 INFO L225 Difference]: With dead ends: 2811 [2021-12-18 15:12:10,998 INFO L226 Difference]: Without dead ends: 2809 [2021-12-18 15:12:11,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:12:11,003 INFO L933 BasicCegarLoop]: 3953 mSDtfsCounter, 3904 mSDsluCounter, 7884 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3915 SdHoareTripleChecker+Valid, 11837 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:12:11,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3915 Valid, 11837 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:12:11,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2809 states. [2021-12-18 15:12:11,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2809 to 2809. [2021-12-18 15:12:11,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2809 states, 1862 states have (on average 1.2610096670247046) internal successors, (2348), 1937 states have internal predecessors, (2348), 810 states have call successors, (810), 135 states have call predecessors, (810), 134 states have return successors, (807), 783 states have call predecessors, (807), 807 states have call successors, (807) [2021-12-18 15:12:11,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2809 states to 2809 states and 3965 transitions. [2021-12-18 15:12:11,149 INFO L78 Accepts]: Start accepts. Automaton has 2809 states and 3965 transitions. Word has length 95 [2021-12-18 15:12:11,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:12:11,150 INFO L470 AbstractCegarLoop]: Abstraction has 2809 states and 3965 transitions. [2021-12-18 15:12:11,150 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) [2021-12-18 15:12:11,151 INFO L276 IsEmpty]: Start isEmpty. Operand 2809 states and 3965 transitions. [2021-12-18 15:12:11,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-18 15:12:11,157 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:12:11,158 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:12:11,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 15:12:11,158 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)] === [2021-12-18 15:12:11,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:12:11,159 INFO L85 PathProgramCache]: Analyzing trace with hash 876003308, now seen corresponding path program 1 times [2021-12-18 15:12:11,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:12:11,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588899365] [2021-12-18 15:12:11,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:12:11,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:12:11,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:12,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:12:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:12,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:12:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:12,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 15:12:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:12,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 15:12:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:12,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 15:12:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:12,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 15:12:12,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:12,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:12:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:12,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:12,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:12:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:12,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:12:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:12,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:12:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:12,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 15:12:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:12,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 15:12:12,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:12,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:12:12,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:12,436 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-12-18 15:12:12,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:12:12,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588899365] [2021-12-18 15:12:12,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588899365] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:12:12,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:12:12,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:12:12,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496255950] [2021-12-18 15:12:12,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:12:12,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:12:12,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:12:12,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:12:12,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:12:12,440 INFO L87 Difference]: Start difference. First operand 2809 states and 3965 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) [2021-12-18 15:12:12,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:12:12,771 INFO L93 Difference]: Finished difference Result 2815 states and 3970 transitions. [2021-12-18 15:12:12,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:12:12,772 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 100 [2021-12-18 15:12:12,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:12:12,795 INFO L225 Difference]: With dead ends: 2815 [2021-12-18 15:12:12,796 INFO L226 Difference]: Without dead ends: 2813 [2021-12-18 15:12:12,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:12:12,799 INFO L933 BasicCegarLoop]: 3953 mSDtfsCounter, 3904 mSDsluCounter, 7884 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3914 SdHoareTripleChecker+Valid, 11837 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:12:12,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3914 Valid, 11837 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:12:12,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2813 states. [2021-12-18 15:12:12,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2813 to 2813. [2021-12-18 15:12:12,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2813 states, 1865 states have (on average 1.2605898123324397) internal successors, (2351), 1940 states have internal predecessors, (2351), 810 states have call successors, (810), 136 states have call predecessors, (810), 135 states have return successors, (807), 783 states have call predecessors, (807), 807 states have call successors, (807) [2021-12-18 15:12:12,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2813 states to 2813 states and 3968 transitions. [2021-12-18 15:12:12,945 INFO L78 Accepts]: Start accepts. Automaton has 2813 states and 3968 transitions. Word has length 100 [2021-12-18 15:12:12,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:12:12,947 INFO L470 AbstractCegarLoop]: Abstraction has 2813 states and 3968 transitions. [2021-12-18 15:12:12,947 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) [2021-12-18 15:12:12,947 INFO L276 IsEmpty]: Start isEmpty. Operand 2813 states and 3968 transitions. [2021-12-18 15:12:12,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-18 15:12:12,949 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:12:12,950 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:12:12,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 15:12:12,950 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)] === [2021-12-18 15:12:12,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:12:12,951 INFO L85 PathProgramCache]: Analyzing trace with hash -430596327, now seen corresponding path program 1 times [2021-12-18 15:12:12,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:12:12,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047032873] [2021-12-18 15:12:12,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:12:12,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:12:13,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:14,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:12:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:14,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:12:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:14,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 15:12:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:14,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 15:12:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:14,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 15:12:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:14,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 15:12:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:14,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:12:14,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:14,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:14,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:12:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:14,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:12:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:14,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:12:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:14,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 15:12:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:14,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 15:12:14,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:14,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:12:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:14,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:12:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:14,230 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-12-18 15:12:14,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:12:14,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047032873] [2021-12-18 15:12:14,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047032873] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:12:14,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:12:14,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:12:14,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574855139] [2021-12-18 15:12:14,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:12:14,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:12:14,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:12:14,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:12:14,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:12:14,233 INFO L87 Difference]: Start difference. First operand 2813 states and 3968 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, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 15:12:14,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:12:14,557 INFO L93 Difference]: Finished difference Result 2819 states and 3973 transitions. [2021-12-18 15:12:14,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:12:14,558 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, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 105 [2021-12-18 15:12:14,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:12:14,577 INFO L225 Difference]: With dead ends: 2819 [2021-12-18 15:12:14,577 INFO L226 Difference]: Without dead ends: 2817 [2021-12-18 15:12:14,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:12:14,580 INFO L933 BasicCegarLoop]: 3953 mSDtfsCounter, 3904 mSDsluCounter, 7884 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3913 SdHoareTripleChecker+Valid, 11837 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:12:14,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3913 Valid, 11837 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:12:14,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2817 states. [2021-12-18 15:12:14,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2817 to 2817. [2021-12-18 15:12:14,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2817 states, 1868 states have (on average 1.26017130620985) internal successors, (2354), 1943 states have internal predecessors, (2354), 810 states have call successors, (810), 137 states have call predecessors, (810), 136 states have return successors, (807), 783 states have call predecessors, (807), 807 states have call successors, (807) [2021-12-18 15:12:14,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2817 states to 2817 states and 3971 transitions. [2021-12-18 15:12:14,729 INFO L78 Accepts]: Start accepts. Automaton has 2817 states and 3971 transitions. Word has length 105 [2021-12-18 15:12:14,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:12:14,729 INFO L470 AbstractCegarLoop]: Abstraction has 2817 states and 3971 transitions. [2021-12-18 15:12:14,730 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, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 15:12:14,730 INFO L276 IsEmpty]: Start isEmpty. Operand 2817 states and 3971 transitions. [2021-12-18 15:12:14,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-18 15:12:14,732 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:12:14,732 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:12:14,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 15:12:14,732 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)] === [2021-12-18 15:12:14,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:12:14,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1399764020, now seen corresponding path program 1 times [2021-12-18 15:12:14,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:12:14,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332710366] [2021-12-18 15:12:14,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:12:14,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:12:15,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:15,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:12:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:15,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:12:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:15,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 15:12:15,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:15,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 15:12:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:15,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 15:12:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:15,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 15:12:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:15,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:12:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:15,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:15,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:12:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:15,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:12:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:15,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:12:15,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:15,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 15:12:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:15,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 15:12:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:15,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:12:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:15,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:12:15,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:15,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 15:12:15,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:15,989 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-12-18 15:12:15,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:12:15,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332710366] [2021-12-18 15:12:15,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332710366] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:12:15,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:12:15,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:12:15,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388861222] [2021-12-18 15:12:15,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:12:15,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:12:15,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:12:15,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:12:15,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:12:15,992 INFO L87 Difference]: Start difference. First operand 2817 states and 3971 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) [2021-12-18 15:12:16,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:12:16,323 INFO L93 Difference]: Finished difference Result 2823 states and 3976 transitions. [2021-12-18 15:12:16,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:12:16,324 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 110 [2021-12-18 15:12:16,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:12:16,341 INFO L225 Difference]: With dead ends: 2823 [2021-12-18 15:12:16,341 INFO L226 Difference]: Without dead ends: 2821 [2021-12-18 15:12:16,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:12:16,344 INFO L933 BasicCegarLoop]: 3953 mSDtfsCounter, 3904 mSDsluCounter, 7884 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3912 SdHoareTripleChecker+Valid, 11837 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:12:16,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3912 Valid, 11837 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:12:16,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2821 states. [2021-12-18 15:12:16,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2821 to 2821. [2021-12-18 15:12:16,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2821 states, 1871 states have (on average 1.2597541421699625) internal successors, (2357), 1946 states have internal predecessors, (2357), 810 states have call successors, (810), 138 states have call predecessors, (810), 137 states have return successors, (807), 783 states have call predecessors, (807), 807 states have call successors, (807) [2021-12-18 15:12:16,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2821 states to 2821 states and 3974 transitions. [2021-12-18 15:12:16,480 INFO L78 Accepts]: Start accepts. Automaton has 2821 states and 3974 transitions. Word has length 110 [2021-12-18 15:12:16,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:12:16,481 INFO L470 AbstractCegarLoop]: Abstraction has 2821 states and 3974 transitions. [2021-12-18 15:12:16,481 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) [2021-12-18 15:12:16,481 INFO L276 IsEmpty]: Start isEmpty. Operand 2821 states and 3974 transitions. [2021-12-18 15:12:16,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-18 15:12:16,483 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:12:16,484 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:12:16,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 15:12:16,484 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)] === [2021-12-18 15:12:16,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:12:16,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1291610280, now seen corresponding path program 1 times [2021-12-18 15:12:16,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:12:16,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045307726] [2021-12-18 15:12:16,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:12:16,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:12:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:17,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:12:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:17,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:12:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:17,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 15:12:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:17,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 15:12:17,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:17,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 15:12:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:17,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 15:12:17,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:17,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:12:17,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:17,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:17,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:12:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:17,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:12:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:17,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:12:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:17,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:12:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:17,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 15:12:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:17,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 15:12:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:17,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 15:12:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:17,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 15:12:17,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:17,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 15:12:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:17,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 15:12:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:17,767 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-12-18 15:12:17,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:12:17,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045307726] [2021-12-18 15:12:17,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045307726] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:12:17,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:12:17,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:12:17,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163554025] [2021-12-18 15:12:17,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:12:17,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:12:17,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:12:17,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:12:17,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:12:17,769 INFO L87 Difference]: Start difference. First operand 2821 states and 3974 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2021-12-18 15:12:18,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:12:18,220 INFO L93 Difference]: Finished difference Result 3780 states and 5346 transitions. [2021-12-18 15:12:18,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:12:18,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 135 [2021-12-18 15:12:18,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:12:18,245 INFO L225 Difference]: With dead ends: 3780 [2021-12-18 15:12:18,245 INFO L226 Difference]: Without dead ends: 3778 [2021-12-18 15:12:18,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:12:18,249 INFO L933 BasicCegarLoop]: 4474 mSDtfsCounter, 3255 mSDsluCounter, 10927 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3262 SdHoareTripleChecker+Valid, 15401 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:12:18,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3262 Valid, 15401 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:12:18,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3778 states. [2021-12-18 15:12:18,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3778 to 3778. [2021-12-18 15:12:18,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3778 states, 2449 states have (on average 1.2621478154348713) internal successors, (3091), 2550 states have internal predecessors, (3091), 1128 states have call successors, (1128), 199 states have call predecessors, (1128), 198 states have return successors, (1125), 1089 states have call predecessors, (1125), 1125 states have call successors, (1125) [2021-12-18 15:12:18,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3778 states to 3778 states and 5344 transitions. [2021-12-18 15:12:18,454 INFO L78 Accepts]: Start accepts. Automaton has 3778 states and 5344 transitions. Word has length 135 [2021-12-18 15:12:18,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:12:18,454 INFO L470 AbstractCegarLoop]: Abstraction has 3778 states and 5344 transitions. [2021-12-18 15:12:18,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2021-12-18 15:12:18,455 INFO L276 IsEmpty]: Start isEmpty. Operand 3778 states and 5344 transitions. [2021-12-18 15:12:18,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-18 15:12:18,458 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:12:18,458 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:12:18,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 15:12:18,458 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)] === [2021-12-18 15:12:18,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:12:18,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1811402836, now seen corresponding path program 1 times [2021-12-18 15:12:18,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:12:18,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741625975] [2021-12-18 15:12:18,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:12:18,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:12:19,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:19,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:12:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:19,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:12:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:19,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 15:12:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:19,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 15:12:19,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:19,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 15:12:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:19,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 15:12:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:19,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:12:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:19,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:19,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:12:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:19,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:12:19,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:19,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:12:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:19,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 15:12:19,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:19,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 15:12:19,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:19,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:12:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:19,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:12:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:19,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 15:12:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:19,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 15:12:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:19,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 15:12:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:19,659 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2021-12-18 15:12:19,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:12:19,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741625975] [2021-12-18 15:12:19,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741625975] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:12:19,659 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:12:19,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:12:19,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175681422] [2021-12-18 15:12:19,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:12:19,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:12:19,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:12:19,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:12:19,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:12:19,661 INFO L87 Difference]: Start difference. First operand 3778 states and 5344 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) [2021-12-18 15:12:20,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:12:20,167 INFO L93 Difference]: Finished difference Result 3784 states and 5349 transitions. [2021-12-18 15:12:20,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:12:20,168 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 120 [2021-12-18 15:12:20,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:12:20,204 INFO L225 Difference]: With dead ends: 3784 [2021-12-18 15:12:20,205 INFO L226 Difference]: Without dead ends: 3782 [2021-12-18 15:12:20,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:12:20,209 INFO L933 BasicCegarLoop]: 3953 mSDtfsCounter, 3904 mSDsluCounter, 7884 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3910 SdHoareTripleChecker+Valid, 11837 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:12:20,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3910 Valid, 11837 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:12:20,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3782 states. [2021-12-18 15:12:20,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3782 to 3782. [2021-12-18 15:12:20,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3782 states, 2452 states have (on average 1.261827079934747) internal successors, (3094), 2553 states have internal predecessors, (3094), 1128 states have call successors, (1128), 200 states have call predecessors, (1128), 199 states have return successors, (1125), 1089 states have call predecessors, (1125), 1125 states have call successors, (1125) [2021-12-18 15:12:20,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3782 states to 3782 states and 5347 transitions. [2021-12-18 15:12:20,406 INFO L78 Accepts]: Start accepts. Automaton has 3782 states and 5347 transitions. Word has length 120 [2021-12-18 15:12:20,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:12:20,407 INFO L470 AbstractCegarLoop]: Abstraction has 3782 states and 5347 transitions. [2021-12-18 15:12:20,407 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) [2021-12-18 15:12:20,407 INFO L276 IsEmpty]: Start isEmpty. Operand 3782 states and 5347 transitions. [2021-12-18 15:12:20,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-18 15:12:20,410 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:12:20,410 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:12:20,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 15:12:20,410 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)] === [2021-12-18 15:12:20,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:12:20,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1932027481, now seen corresponding path program 1 times [2021-12-18 15:12:20,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:12:20,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917343423] [2021-12-18 15:12:20,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:12:20,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:12:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:21,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:12:21,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:21,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:12:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:21,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 15:12:21,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:21,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 15:12:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:21,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 15:12:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:21,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 15:12:21,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:21,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:12:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:21,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:21,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:21,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:12:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:21,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:12:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:21,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:12:21,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:21,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 15:12:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:21,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 15:12:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:21,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:12:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:21,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:12:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:21,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 15:12:21,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:21,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 15:12:21,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:21,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 15:12:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:21,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 15:12:21,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:21,549 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2021-12-18 15:12:21,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:12:21,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917343423] [2021-12-18 15:12:21,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917343423] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:12:21,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:12:21,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:12:21,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800964862] [2021-12-18 15:12:21,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:12:21,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:12:21,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:12:21,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:12:21,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:12:21,552 INFO L87 Difference]: Start difference. First operand 3782 states and 5347 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 15:12:21,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:12:21,871 INFO L93 Difference]: Finished difference Result 3788 states and 5352 transitions. [2021-12-18 15:12:21,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:12:21,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 125 [2021-12-18 15:12:21,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:12:21,895 INFO L225 Difference]: With dead ends: 3788 [2021-12-18 15:12:21,895 INFO L226 Difference]: Without dead ends: 3786 [2021-12-18 15:12:21,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:12:21,901 INFO L933 BasicCegarLoop]: 3953 mSDtfsCounter, 3904 mSDsluCounter, 7884 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3909 SdHoareTripleChecker+Valid, 11837 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:12:21,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3909 Valid, 11837 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:12:21,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3786 states. [2021-12-18 15:12:22,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3786 to 3786. [2021-12-18 15:12:22,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3786 states, 2455 states have (on average 1.2615071283095722) internal successors, (3097), 2556 states have internal predecessors, (3097), 1128 states have call successors, (1128), 201 states have call predecessors, (1128), 200 states have return successors, (1125), 1089 states have call predecessors, (1125), 1125 states have call successors, (1125) [2021-12-18 15:12:22,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3786 states to 3786 states and 5350 transitions. [2021-12-18 15:12:22,097 INFO L78 Accepts]: Start accepts. Automaton has 3786 states and 5350 transitions. Word has length 125 [2021-12-18 15:12:22,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:12:22,099 INFO L470 AbstractCegarLoop]: Abstraction has 3786 states and 5350 transitions. [2021-12-18 15:12:22,099 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, (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) [2021-12-18 15:12:22,100 INFO L276 IsEmpty]: Start isEmpty. Operand 3786 states and 5350 transitions. [2021-12-18 15:12:22,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-12-18 15:12:22,102 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:12:22,103 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:12:22,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 15:12:22,103 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)] === [2021-12-18 15:12:22,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:12:22,104 INFO L85 PathProgramCache]: Analyzing trace with hash -441993795, now seen corresponding path program 1 times [2021-12-18 15:12:22,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:12:22,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968974597] [2021-12-18 15:12:22,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:12:22,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:12:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:23,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:12:23,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:23,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:12:23,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:23,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 15:12:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:23,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 15:12:23,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:23,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 15:12:23,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:23,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 15:12:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:23,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:12:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:23,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:23,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:23,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:12:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:23,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:12:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:23,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:12:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:23,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:12:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:23,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 15:12:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:23,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 15:12:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:23,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 15:12:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:23,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 15:12:23,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:23,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 15:12:23,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:23,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 15:12:23,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:23,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 15:12:23,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:23,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-18 15:12:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:23,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 15:12:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:23,235 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2021-12-18 15:12:23,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:12:23,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968974597] [2021-12-18 15:12:23,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968974597] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:12:23,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:12:23,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:12:23,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797500373] [2021-12-18 15:12:23,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:12:23,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:12:23,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:12:23,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:12:23,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:12:23,238 INFO L87 Difference]: Start difference. First operand 3786 states and 5350 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 15:12:23,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:12:23,604 INFO L93 Difference]: Finished difference Result 3792 states and 5355 transitions. [2021-12-18 15:12:23,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:12:23,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 150 [2021-12-18 15:12:23,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:12:23,624 INFO L225 Difference]: With dead ends: 3792 [2021-12-18 15:12:23,624 INFO L226 Difference]: Without dead ends: 3790 [2021-12-18 15:12:23,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:12:23,628 INFO L933 BasicCegarLoop]: 3953 mSDtfsCounter, 3891 mSDsluCounter, 7884 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3895 SdHoareTripleChecker+Valid, 11837 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:12:23,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3895 Valid, 11837 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:12:23,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3790 states. [2021-12-18 15:12:23,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3790 to 3790. [2021-12-18 15:12:23,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3790 states, 2458 states have (on average 1.2611879576891782) internal successors, (3100), 2559 states have internal predecessors, (3100), 1128 states have call successors, (1128), 202 states have call predecessors, (1128), 201 states have return successors, (1125), 1089 states have call predecessors, (1125), 1125 states have call successors, (1125) [2021-12-18 15:12:23,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3790 states to 3790 states and 5353 transitions. [2021-12-18 15:12:23,969 INFO L78 Accepts]: Start accepts. Automaton has 3790 states and 5353 transitions. Word has length 150 [2021-12-18 15:12:23,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:12:23,970 INFO L470 AbstractCegarLoop]: Abstraction has 3790 states and 5353 transitions. [2021-12-18 15:12:23,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 15:12:23,970 INFO L276 IsEmpty]: Start isEmpty. Operand 3790 states and 5353 transitions. [2021-12-18 15:12:23,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-18 15:12:23,973 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:12:23,973 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:12:23,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 15:12:23,974 INFO L402 AbstractCegarLoop]: === Iteration 12 === 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)] === [2021-12-18 15:12:23,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:12:23,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1670250341, now seen corresponding path program 1 times [2021-12-18 15:12:23,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:12:23,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785789492] [2021-12-18 15:12:23,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:12:23,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:12:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:12:25,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:12:25,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 15:12:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 15:12:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 15:12:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:25,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:12:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:12:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 15:12:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:12:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:12:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-18 15:12:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:12:25,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:12:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:12:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 15:12:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 15:12:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 15:12:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 15:12:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 15:12:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 15:12:25,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:25,512 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-12-18 15:12:25,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:12:25,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785789492] [2021-12-18 15:12:25,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785789492] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:12:25,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:12:25,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:12:25,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521168210] [2021-12-18 15:12:25,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:12:25,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:12:25,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:12:25,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:12:25,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:12:25,515 INFO L87 Difference]: Start difference. First operand 3790 states and 5353 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 15:12:27,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:12:47,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:12:47,208 INFO L93 Difference]: Finished difference Result 3916 states and 5564 transitions. [2021-12-18 15:12:47,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:12:47,208 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 167 [2021-12-18 15:12:47,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:12:47,226 INFO L225 Difference]: With dead ends: 3916 [2021-12-18 15:12:47,226 INFO L226 Difference]: Without dead ends: 3914 [2021-12-18 15:12:47,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-18 15:12:47,228 INFO L933 BasicCegarLoop]: 3983 mSDtfsCounter, 3925 mSDsluCounter, 8761 mSDsCounter, 0 mSdLazyCounter, 4845 mSolverCounterSat, 1943 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4459 SdHoareTripleChecker+Valid, 12744 SdHoareTripleChecker+Invalid, 6789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1943 IncrementalHoareTripleChecker+Valid, 4845 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2021-12-18 15:12:47,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4459 Valid, 12744 Invalid, 6789 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1943 Valid, 4845 Invalid, 1 Unknown, 0 Unchecked, 21.0s Time] [2021-12-18 15:12:47,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3914 states. [2021-12-18 15:12:47,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3914 to 3788. [2021-12-18 15:12:47,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3788 states, 2457 states have (on average 1.260887260887261) internal successors, (3098), 2557 states have internal predecessors, (3098), 1128 states have call successors, (1128), 202 states have call predecessors, (1128), 201 states have return successors, (1125), 1089 states have call predecessors, (1125), 1125 states have call successors, (1125) [2021-12-18 15:12:47,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3788 states to 3788 states and 5351 transitions. [2021-12-18 15:12:47,452 INFO L78 Accepts]: Start accepts. Automaton has 3788 states and 5351 transitions. Word has length 167 [2021-12-18 15:12:47,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:12:47,452 INFO L470 AbstractCegarLoop]: Abstraction has 3788 states and 5351 transitions. [2021-12-18 15:12:47,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 15:12:47,453 INFO L276 IsEmpty]: Start isEmpty. Operand 3788 states and 5351 transitions. [2021-12-18 15:12:47,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-18 15:12:47,456 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:12:47,456 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:12:47,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 15:12:47,456 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)] === [2021-12-18 15:12:47,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:12:47,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1180187143, now seen corresponding path program 1 times [2021-12-18 15:12:47,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:12:47,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561375971] [2021-12-18 15:12:47,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:12:47,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:12:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:48,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:12:48,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:48,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:12:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:48,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 15:12:48,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:48,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 15:12:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:48,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 15:12:48,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:48,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 15:12:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:48,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:12:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:48,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:48,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:12:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:48,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:12:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:48,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:12:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:48,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 15:12:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:48,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 15:12:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:48,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:12:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:48,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:12:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:48,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 15:12:48,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:48,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 15:12:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:48,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 15:12:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:48,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 15:12:48,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:48,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 15:12:48,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:48,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 15:12:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:48,827 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2021-12-18 15:12:48,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:12:48,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561375971] [2021-12-18 15:12:48,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561375971] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:12:48,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:12:48,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:12:48,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177466455] [2021-12-18 15:12:48,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:12:48,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:12:48,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:12:48,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:12:48,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:12:48,829 INFO L87 Difference]: Start difference. First operand 3788 states and 5351 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 15:12:49,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:12:49,207 INFO L93 Difference]: Finished difference Result 3794 states and 5356 transitions. [2021-12-18 15:12:49,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:12:49,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 135 [2021-12-18 15:12:49,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:12:49,228 INFO L225 Difference]: With dead ends: 3794 [2021-12-18 15:12:49,228 INFO L226 Difference]: Without dead ends: 3792 [2021-12-18 15:12:49,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:12:49,232 INFO L933 BasicCegarLoop]: 3951 mSDtfsCounter, 3902 mSDsluCounter, 7880 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3905 SdHoareTripleChecker+Valid, 11831 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:12:49,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3905 Valid, 11831 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:12:49,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3792 states. [2021-12-18 15:12:49,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3792 to 3792. [2021-12-18 15:12:49,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3792 states, 2460 states have (on average 1.2605691056910568) internal successors, (3101), 2560 states have internal predecessors, (3101), 1128 states have call successors, (1128), 203 states have call predecessors, (1128), 202 states have return successors, (1125), 1089 states have call predecessors, (1125), 1125 states have call successors, (1125) [2021-12-18 15:12:49,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3792 states to 3792 states and 5354 transitions. [2021-12-18 15:12:49,501 INFO L78 Accepts]: Start accepts. Automaton has 3792 states and 5354 transitions. Word has length 135 [2021-12-18 15:12:49,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:12:49,501 INFO L470 AbstractCegarLoop]: Abstraction has 3792 states and 5354 transitions. [2021-12-18 15:12:49,501 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, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 15:12:49,502 INFO L276 IsEmpty]: Start isEmpty. Operand 3792 states and 5354 transitions. [2021-12-18 15:12:49,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-18 15:12:49,505 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:12:49,505 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:12:49,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 15:12:49,506 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)] === [2021-12-18 15:12:49,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:12:49,506 INFO L85 PathProgramCache]: Analyzing trace with hash 656343133, now seen corresponding path program 1 times [2021-12-18 15:12:49,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:12:49,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930895671] [2021-12-18 15:12:49,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:12:49,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:12:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:12:50,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:12:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 15:12:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 15:12:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 15:12:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 15:12:50,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:12:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:12:50,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:12:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:12:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:12:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 15:12:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 15:12:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 15:12:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 15:12:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 15:12:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 15:12:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 15:12:50,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-18 15:12:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 15:12:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 15:12:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 15:12:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:50,570 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2021-12-18 15:12:50,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:12:50,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930895671] [2021-12-18 15:12:50,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930895671] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:12:50,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:12:50,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:12:50,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361484835] [2021-12-18 15:12:50,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:12:50,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:12:50,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:12:50,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:12:50,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:12:50,573 INFO L87 Difference]: Start difference. First operand 3792 states and 5354 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 15:12:50,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:12:50,873 INFO L93 Difference]: Finished difference Result 3798 states and 5359 transitions. [2021-12-18 15:12:50,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:12:50,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 160 [2021-12-18 15:12:50,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:12:50,892 INFO L225 Difference]: With dead ends: 3798 [2021-12-18 15:12:50,892 INFO L226 Difference]: Without dead ends: 3796 [2021-12-18 15:12:50,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:12:50,896 INFO L933 BasicCegarLoop]: 3951 mSDtfsCounter, 3889 mSDsluCounter, 7880 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3891 SdHoareTripleChecker+Valid, 11831 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:12:50,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3891 Valid, 11831 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:12:50,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3796 states. [2021-12-18 15:12:51,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3796 to 3796. [2021-12-18 15:12:51,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3796 states, 2463 states have (on average 1.260251725537962) internal successors, (3104), 2563 states have internal predecessors, (3104), 1128 states have call successors, (1128), 204 states have call predecessors, (1128), 203 states have return successors, (1125), 1089 states have call predecessors, (1125), 1125 states have call successors, (1125) [2021-12-18 15:12:51,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3796 states to 3796 states and 5357 transitions. [2021-12-18 15:12:51,111 INFO L78 Accepts]: Start accepts. Automaton has 3796 states and 5357 transitions. Word has length 160 [2021-12-18 15:12:51,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:12:51,112 INFO L470 AbstractCegarLoop]: Abstraction has 3796 states and 5357 transitions. [2021-12-18 15:12:51,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 15:12:51,112 INFO L276 IsEmpty]: Start isEmpty. Operand 3796 states and 5357 transitions. [2021-12-18 15:12:51,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-12-18 15:12:51,116 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:12:51,116 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:12:51,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-18 15:12:51,117 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)] === [2021-12-18 15:12:51,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:12:51,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1025363353, now seen corresponding path program 1 times [2021-12-18 15:12:51,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:12:51,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519286529] [2021-12-18 15:12:51,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:12:51,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:12:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:12:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:12:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 15:12:52,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 15:12:52,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 15:12:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 15:12:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:12:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:12:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:12:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:12:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 15:12:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 15:12:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:12:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:12:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 15:12:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 15:12:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 15:12:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 15:12:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 15:12:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 15:12:52,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 15:12:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-18 15:12:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:52,155 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2021-12-18 15:12:52,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:12:52,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519286529] [2021-12-18 15:12:52,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519286529] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:12:52,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:12:52,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:12:52,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468260677] [2021-12-18 15:12:52,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:12:52,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:12:52,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:12:52,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:12:52,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:12:52,157 INFO L87 Difference]: Start difference. First operand 3796 states and 5357 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 15:12:52,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:12:52,542 INFO L93 Difference]: Finished difference Result 3802 states and 5362 transitions. [2021-12-18 15:12:52,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:12:52,543 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 145 [2021-12-18 15:12:52,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:12:52,556 INFO L225 Difference]: With dead ends: 3802 [2021-12-18 15:12:52,557 INFO L226 Difference]: Without dead ends: 3798 [2021-12-18 15:12:52,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:12:52,558 INFO L933 BasicCegarLoop]: 3951 mSDtfsCounter, 3902 mSDsluCounter, 7880 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3903 SdHoareTripleChecker+Valid, 11831 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:12:52,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3903 Valid, 11831 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:12:52,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3798 states. [2021-12-18 15:12:52,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3798 to 3798. [2021-12-18 15:12:52,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3798 states, 2465 states have (on average 1.2596348884381339) internal successors, (3105), 2564 states have internal predecessors, (3105), 1128 states have call successors, (1128), 205 states have call predecessors, (1128), 203 states have return successors, (1125), 1089 states have call predecessors, (1125), 1125 states have call successors, (1125) [2021-12-18 15:12:52,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3798 states to 3798 states and 5358 transitions. [2021-12-18 15:12:52,762 INFO L78 Accepts]: Start accepts. Automaton has 3798 states and 5358 transitions. Word has length 145 [2021-12-18 15:12:52,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:12:52,763 INFO L470 AbstractCegarLoop]: Abstraction has 3798 states and 5358 transitions. [2021-12-18 15:12:52,763 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, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 15:12:52,763 INFO L276 IsEmpty]: Start isEmpty. Operand 3798 states and 5358 transitions. [2021-12-18 15:12:52,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-12-18 15:12:52,767 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:12:52,767 INFO L514 BasicCegarLoop]: trace histogram [15, 14, 14, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:12:52,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-18 15:12:52,767 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)] === [2021-12-18 15:12:52,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:12:52,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1931267331, now seen corresponding path program 1 times [2021-12-18 15:12:52,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:12:52,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724925928] [2021-12-18 15:12:52,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:12:52,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:12:53,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:12:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:12:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 15:12:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 15:12:53,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 15:12:53,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 15:12:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:12:53,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:12:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:12:53,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:12:53,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:12:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 15:12:53,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 15:12:53,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 15:12:53,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 15:12:53,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 15:12:53,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 15:12:53,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 15:12:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-18 15:12:53,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 15:12:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 15:12:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 15:12:53,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 15:12:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 15:12:53,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:53,705 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2021-12-18 15:12:53,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:12:53,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724925928] [2021-12-18 15:12:53,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724925928] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:12:53,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:12:53,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:12:53,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664775740] [2021-12-18 15:12:53,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:12:53,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:12:53,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:12:53,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:12:53,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:12:53,707 INFO L87 Difference]: Start difference. First operand 3798 states and 5358 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 15:12:53,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:12:53,966 INFO L93 Difference]: Finished difference Result 3798 states and 5358 transitions. [2021-12-18 15:12:53,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:12:53,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 170 [2021-12-18 15:12:53,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:12:53,982 INFO L225 Difference]: With dead ends: 3798 [2021-12-18 15:12:53,982 INFO L226 Difference]: Without dead ends: 3681 [2021-12-18 15:12:53,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:12:53,985 INFO L933 BasicCegarLoop]: 3949 mSDtfsCounter, 3885 mSDsluCounter, 7879 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3885 SdHoareTripleChecker+Valid, 11828 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 15:12:53,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3885 Valid, 11828 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 15:12:53,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3681 states. [2021-12-18 15:12:54,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3681 to 3681. [2021-12-18 15:12:54,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3681 states, 2389 states have (on average 1.2662201758057765) internal successors, (3025), 2486 states have internal predecessors, (3025), 1103 states have call successors, (1103), 188 states have call predecessors, (1103), 188 states have return successors, (1103), 1067 states have call predecessors, (1103), 1103 states have call successors, (1103) [2021-12-18 15:12:54,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3681 states to 3681 states and 5231 transitions. [2021-12-18 15:12:54,197 INFO L78 Accepts]: Start accepts. Automaton has 3681 states and 5231 transitions. Word has length 170 [2021-12-18 15:12:54,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:12:54,198 INFO L470 AbstractCegarLoop]: Abstraction has 3681 states and 5231 transitions. [2021-12-18 15:12:54,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 15:12:54,198 INFO L276 IsEmpty]: Start isEmpty. Operand 3681 states and 5231 transitions. [2021-12-18 15:12:54,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-12-18 15:12:54,201 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:12:54,201 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:12:54,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-18 15:12:54,202 INFO L402 AbstractCegarLoop]: === Iteration 17 === 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)] === [2021-12-18 15:12:54,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:12:54,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1144539210, now seen corresponding path program 1 times [2021-12-18 15:12:54,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:12:54,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187597097] [2021-12-18 15:12:54,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:12:54,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:12:54,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:12:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:12:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 15:12:55,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 15:12:55,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 15:12:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:12:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:12:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 15:12:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:12:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:12:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-18 15:12:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:12:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:12:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:12:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 15:12:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 15:12:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:55,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 15:12:55,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 15:12:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 15:12:55,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 15:12:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 15:12:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 15:12:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 15:12:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 15:12:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:55,587 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2021-12-18 15:12:55,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:12:55,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187597097] [2021-12-18 15:12:55,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187597097] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:12:55,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:12:55,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 15:12:55,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137138284] [2021-12-18 15:12:55,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:12:55,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 15:12:55,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:12:55,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 15:12:55,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 15:12:55,590 INFO L87 Difference]: Start difference. First operand 3681 states and 5231 transitions. Second operand has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (29), 5 states have call predecessors, (29), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-18 15:12:57,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:13:00,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:13:02,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:13:46,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:13:46,848 INFO L93 Difference]: Finished difference Result 4205 states and 6069 transitions. [2021-12-18 15:13:46,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 15:13:46,849 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (29), 5 states have call predecessors, (29), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 193 [2021-12-18 15:13:46,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:13:46,851 INFO L225 Difference]: With dead ends: 4205 [2021-12-18 15:13:46,851 INFO L226 Difference]: Without dead ends: 0 [2021-12-18 15:13:46,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-12-18 15:13:46,868 INFO L933 BasicCegarLoop]: 4145 mSDtfsCounter, 4335 mSDsluCounter, 7611 mSDsCounter, 0 mSdLazyCounter, 10827 mSolverCounterSat, 3742 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4732 SdHoareTripleChecker+Valid, 11756 SdHoareTripleChecker+Invalid, 14572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3742 IncrementalHoareTripleChecker+Valid, 10827 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.0s IncrementalHoareTripleChecker+Time [2021-12-18 15:13:46,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4732 Valid, 11756 Invalid, 14572 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3742 Valid, 10827 Invalid, 3 Unknown, 0 Unchecked, 50.0s Time] [2021-12-18 15:13:46,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-18 15:13:46,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-18 15:13:46,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-18 15:13:46,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-18 15:13:46,870 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 193 [2021-12-18 15:13:46,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:13:46,870 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-18 15:13:46,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (29), 5 states have call predecessors, (29), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-18 15:13:46,871 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-18 15:13:46,871 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-18 15:13:46,873 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-12-18 15:13:46,874 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-12-18 15:13:46,874 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-12-18 15:13:46,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-18 15:13:46,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Killed by 15