/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 07:35:47,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 07:35:47,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 07:35:47,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 07:35:47,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 07:35:47,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 07:35:47,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 07:35:47,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 07:35:47,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 07:35:47,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 07:35:47,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 07:35:47,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 07:35:47,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 07:35:47,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 07:35:47,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 07:35:47,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 07:35:47,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 07:35:47,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 07:35:47,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 07:35:47,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 07:35:47,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 07:35:47,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 07:35:47,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 07:35:47,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 07:35:47,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 07:35:47,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 07:35:47,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 07:35:47,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 07:35:47,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 07:35:47,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 07:35:47,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 07:35:47,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 07:35:47,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 07:35:47,280 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 07:35:47,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 07:35:47,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 07:35:47,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 07:35:47,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 07:35:47,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 07:35:47,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 07:35:47,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 07:35:47,284 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 07:35:47,311 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 07:35:47,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 07:35:47,312 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 07:35:47,312 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 07:35:47,313 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 07:35:47,313 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 07:35:47,313 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 07:35:47,313 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 07:35:47,314 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 07:35:47,314 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 07:35:47,314 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 07:35:47,315 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 07:35:47,315 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 07:35:47,315 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 07:35:47,315 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 07:35:47,315 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 07:35:47,315 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 07:35:47,315 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 07:35:47,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 07:35:47,316 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 07:35:47,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 07:35:47,316 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 07:35:47,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 07:35:47,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 07:35:47,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 07:35:47,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 07:35:47,317 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 07:35:47,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 07:35:47,318 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 07:35:47,318 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 07:35:47,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 07:35:47,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 07:35:47,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 07:35:47,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 07:35:47,319 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 07:35:47,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 07:35:47,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 07:35:47,319 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 07:35:47,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 07:35:47,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 07:35:47,319 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 07:35:47,320 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 07:35:47,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 07:35:47,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 07:35:47,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 07:35:47,571 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 07:35:47,571 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 07:35:47,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2023-04-03 07:35:48,733 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 07:35:49,402 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 07:35:49,403 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2023-04-03 07:35:49,478 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9a9a9211/89015f13581a4ec687a9312581438b4c/FLAG459c466f8 [2023-04-03 07:35:49,494 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9a9a9211/89015f13581a4ec687a9312581438b4c [2023-04-03 07:35:49,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 07:35:49,498 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 07:35:49,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 07:35:49,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 07:35:49,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 07:35:49,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 07:35:49" (1/1) ... [2023-04-03 07:35:49,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@98239a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:35:49, skipping insertion in model container [2023-04-03 07:35:49,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 07:35:49" (1/1) ... [2023-04-03 07:35:49,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 07:35:49,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 07:35:53,923 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517003,517016] [2023-04-03 07:35:53,927 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517172,517185] [2023-04-03 07:35:53,928 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517339,517352] [2023-04-03 07:35:53,928 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517507,517520] [2023-04-03 07:35:53,947 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 07:35:53,965 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 07:35:54,377 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517003,517016] [2023-04-03 07:35:54,377 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517172,517185] [2023-04-03 07:35:54,378 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517339,517352] [2023-04-03 07:35:54,378 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517507,517520] [2023-04-03 07:35:54,384 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 07:35:54,560 WARN L667 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 07:35:54,561 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 07:35:54,561 WARN L667 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 07:35:54,561 WARN L667 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 07:35:54,566 INFO L208 MainTranslator]: Completed translation [2023-04-03 07:35:54,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:35:54 WrapperNode [2023-04-03 07:35:54,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 07:35:54,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 07:35:54,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 07:35:54,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 07:35:54,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:35:54" (1/1) ... [2023-04-03 07:35:54,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:35:54" (1/1) ... [2023-04-03 07:35:54,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:35:54" (1/1) ... [2023-04-03 07:35:54,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:35:54" (1/1) ... [2023-04-03 07:35:54,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:35:54" (1/1) ... [2023-04-03 07:35:54,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:35:54" (1/1) ... [2023-04-03 07:35:54,872 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:35:54" (1/1) ... [2023-04-03 07:35:54,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:35:54" (1/1) ... [2023-04-03 07:35:54,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 07:35:54,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 07:35:54,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 07:35:54,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 07:35:54,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:35:54" (1/1) ... [2023-04-03 07:35:54,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 07:35:54,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 07:35:54,985 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) [2023-04-03 07:35:55,005 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 [2023-04-03 07:35:55,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 07:35:55,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 07:35:55,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-04-03 07:35:55,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-04-03 07:35:55,023 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-03 07:35:55,023 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-04-03 07:35:55,023 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-04-03 07:35:55,023 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-04-03 07:35:55,023 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-04-03 07:35:55,023 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit_lock [2023-04-03 07:35:55,023 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-04-03 07:35:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-04-03 07:35:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-04-03 07:35:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_and_test [2023-04-03 07:35:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2023-04-03 07:35:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_add [2023-04-03 07:35:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_sub [2023-04-03 07:35:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-03 07:35:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-04-03 07:35:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-04-03 07:35:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_lock [2023-04-03 07:35:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock [2023-04-03 07:35:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2023-04-03 07:35:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2023-04-03 07:35:55,025 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2023-04-03 07:35:55,025 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2023-04-03 07:35:55,025 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2023-04-03 07:35:55,025 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-04-03 07:35:55,025 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-04-03 07:35:55,026 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2023-04-03 07:35:55,026 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2023-04-03 07:35:55,026 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2023-04-03 07:35:55,026 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-04-03 07:35:55,026 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-04-03 07:35:55,026 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2023-04-03 07:35:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure PageLocked [2023-04-03 07:35:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure PageError [2023-04-03 07:35:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure PageReferenced [2023-04-03 07:35:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure PageDirty [2023-04-03 07:35:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure PagePrivate [2023-04-03 07:35:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure PageWriteback [2023-04-03 07:35:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure PageMappedToDisk [2023-04-03 07:35:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure PageUptodate [2023-04-03 07:35:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPageUptodate [2023-04-03 07:35:55,028 INFO L138 BoogieDeclarations]: Found implementation of procedure set_page_writeback [2023-04-03 07:35:55,028 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2023-04-03 07:35:55,028 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2023-04-03 07:35:55,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2023-04-03 07:35:55,028 INFO L138 BoogieDeclarations]: Found implementation of procedure zero_user_segments [2023-04-03 07:35:55,028 INFO L138 BoogieDeclarations]: Found implementation of procedure zero_user_segment [2023-04-03 07:35:55,028 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_alloc [2023-04-03 07:35:55,028 INFO L138 BoogieDeclarations]: Found implementation of procedure trylock_page [2023-04-03 07:35:55,029 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_page [2023-04-03 07:35:55,029 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_on_page_locked [2023-04-03 07:35:55,029 INFO L138 BoogieDeclarations]: Found implementation of procedure set_buffer_mapped [2023-04-03 07:35:55,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-03 07:35:55,029 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-03 07:35:55,029 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_I [2023-04-03 07:35:55,029 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_SB [2023-04-03 07:35:55,029 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_SERVER [2023-04-03 07:35:55,029 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_page_array_len [2023-04-03 07:35:55,029 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2023-04-03 07:35:55,029 INFO L138 BoogieDeclarations]: Found implementation of procedure BL_INIT_INVAL_MARKS [2023-04-03 07:35:55,030 INFO L138 BoogieDeclarations]: Found implementation of procedure BLK_LO2EXT [2023-04-03 07:35:55,030 INFO L138 BoogieDeclarations]: Found implementation of procedure BLK_LSEG2EXT [2023-04-03 07:35:55,030 INFO L138 BoogieDeclarations]: Found implementation of procedure print_page [2023-04-03 07:35:55,030 INFO L138 BoogieDeclarations]: Found implementation of procedure is_hole [2023-04-03 07:35:55,030 INFO L138 BoogieDeclarations]: Found implementation of procedure is_writable [2023-04-03 07:35:55,030 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_parallel [2023-04-03 07:35:55,031 INFO L138 BoogieDeclarations]: Found implementation of procedure get_parallel [2023-04-03 07:35:55,031 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_parallel [2023-04-03 07:35:55,031 INFO L138 BoogieDeclarations]: Found implementation of procedure put_parallel [2023-04-03 07:35:55,031 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_submit_bio [2023-04-03 07:35:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_alloc_init_bio [2023-04-03 07:35:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure do_add_page_to_bio [2023-04-03 07:35:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_add_page_to_bio [2023-04-03 07:35:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_read [2023-04-03 07:35:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_read_cleanup [2023-04-03 07:35:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_par_io_read [2023-04-03 07:35:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_read_pagelist [2023-04-03 07:35:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure mark_extents_written [2023-04-03 07:35:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_write_zero [2023-04-03 07:35:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_write [2023-04-03 07:35:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_write_cleanup [2023-04-03 07:35:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_par_io_write [2023-04-03 07:35:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure mark_bad_read [2023-04-03 07:35:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure map_block [2023-04-03 07:35:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_read_single_end_io [2023-04-03 07:35:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_do_readpage_sync [2023-04-03 07:35:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_read_partial_page_sync [2023-04-03 07:35:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure init_page_for_write [2023-04-03 07:35:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_find_get_zeroing_page [2023-04-03 07:35:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_write_pagelist [2023-04-03 07:35:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure release_extents [2023-04-03 07:35:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure release_inval_marks [2023-04-03 07:35:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_free_layout_hdr [2023-04-03 07:35:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_alloc_layout_hdr [2023-04-03 07:35:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_free_lseg [2023-04-03 07:35:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_alloc_lseg [2023-04-03 07:35:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_encode_layoutcommit [2023-04-03 07:35:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_cleanup_layoutcommit [2023-04-03 07:35:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure free_blk_mountid [2023-04-03 07:35:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_blk_get_deviceinfo [2023-04-03 07:35:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_set_layoutdriver [2023-04-03 07:35:55,035 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_clear_layoutdriver [2023-04-03 07:35:55,035 INFO L138 BoogieDeclarations]: Found implementation of procedure is_aligned_req [2023-04-03 07:35:55,036 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_pg_init_read [2023-04-03 07:35:55,036 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_pg_test_read [2023-04-03 07:35:55,036 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_num_cont_bytes [2023-04-03 07:35:55,036 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_pg_init_write [2023-04-03 07:35:55,036 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_pg_test_write [2023-04-03 07:35:55,037 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4blocklayout_register_sb [2023-04-03 07:35:55,038 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4blocklayout_unregister_sb [2023-04-03 07:35:55,039 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_pipefs_event [2023-04-03 07:35:55,044 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4blocklayout_register_net [2023-04-03 07:35:55,044 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4blocklayout_unregister_net [2023-04-03 07:35:55,045 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4blocklayout_net_init [2023-04-03 07:35:55,045 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4blocklayout_net_exit [2023-04-03 07:35:55,045 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4blocklayout_init [2023-04-03 07:35:55,045 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4blocklayout_exit [2023-04-03 07:35:55,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_nfs4blocklayout_exit_7_2 [2023-04-03 07:35:55,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_init_nfs4blocklayout_init_7_13 [2023-04-03 07:35:55,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_allocate_external_0 [2023-04-03 07:35:55,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_deregister_5_1 [2023-04-03 07:35:55,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_deregister_dummy_resourceless_instance_4_7_4 [2023-04-03 07:35:55,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_deregister_dummy_resourceless_instance_5_7_5 [2023-04-03 07:35:55,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_deregister_dummy_resourceless_instance_6_7_6 [2023-04-03 07:35:55,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_register_6_2 [2023-04-03 07:35:55,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_register_dummy_resourceless_instance_4_7_7 [2023-04-03 07:35:55,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_register_dummy_resourceless_instance_5_7_8 [2023-04-03 07:35:55,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_register_dummy_resourceless_instance_6_7_9 [2023-04-03 07:35:55,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_0_3 [2023-04-03 07:35:55,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_1_3 [2023-04-03 07:35:55,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_1_7 [2023-04-03 07:35:55,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_2_12 [2023-04-03 07:35:55,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_2_13 [2023-04-03 07:35:55,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_2_14 [2023-04-03 07:35:55,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_2_15 [2023-04-03 07:35:55,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_2_16 [2023-04-03 07:35:55,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_2_17 [2023-04-03 07:35:55,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_2_18 [2023-04-03 07:35:55,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_2_19 [2023-04-03 07:35:55,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_2_22 [2023-04-03 07:35:55,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_2_23 [2023-04-03 07:35:55,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_2_24 [2023-04-03 07:35:55,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_2_3 [2023-04-03 07:35:55,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_2_9 [2023-04-03 07:35:55,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_3_12 [2023-04-03 07:35:55,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_3_13 [2023-04-03 07:35:55,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_3_14 [2023-04-03 07:35:55,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_3_15 [2023-04-03 07:35:55,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_3_16 [2023-04-03 07:35:55,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_3_17 [2023-04-03 07:35:55,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_3_18 [2023-04-03 07:35:55,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_3_19 [2023-04-03 07:35:55,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_3_22 [2023-04-03 07:35:55,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_3_23 [2023-04-03 07:35:55,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_3_24 [2023-04-03 07:35:55,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_3_3 [2023-04-03 07:35:55,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_3_9 [2023-04-03 07:35:55,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_4_10 [2023-04-03 07:35:55,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_4_3 [2023-04-03 07:35:55,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_4_7 [2023-04-03 07:35:55,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_entry_EMGentry_7 [2023-04-03 07:35:55,048 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 07:35:55,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_external_data [2023-04-03 07:35:55,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rpc_pipefs_notifier_register [2023-04-03 07:35:55,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rpc_pipefs_notifier_unregister [2023-04-03 07:35:55,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_struct_notifier_block_dummy_resourceless_instance_0 [2023-04-03 07:35:55,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_struct_pernet_operations_dummy_resourceless_instance_1 [2023-04-03 07:35:55,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_struct_pnfs_layoutdriver_type_dummy_resourceless_instance_2 [2023-04-03 07:35:55,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_struct_pnfs_layoutdriver_type_dummy_resourceless_instance_3 [2023-04-03 07:35:55,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_struct_rpc_pipe_ops_dummy_resourceless_instance_4 [2023-04-03 07:35:55,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-04-03 07:35:55,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-04-03 07:35:55,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-04-03 07:35:55,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_1 [2023-04-03 07:35:55,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_5 [2023-04-03 07:35:55,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_1 [2023-04-03 07:35:55,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_5 [2023-04-03 07:35:55,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_1 [2023-04-03 07:35:55,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_5 [2023-04-03 07:35:55,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_3_1 [2023-04-03 07:35:55,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_3_5 [2023-04-03 07:35:55,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_4_1 [2023-04-03 07:35:55,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_4_5 [2023-04-03 07:35:55,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-04-03 07:35:55,049 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-04-03 07:35:55,049 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-04-03 07:35:55,049 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-03 07:35:55,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_79 [2023-04-03 07:35:55,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_80 [2023-04-03 07:35:55,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_81 [2023-04-03 07:35:55,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_82 [2023-04-03 07:35:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rpc_pipefs_notifier_register_83 [2023-04-03 07:35:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rpc_pipefs_notifier_unregister_84 [2023-04-03 07:35:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rpc_pipefs_notifier_unregister_85 [2023-04-03 07:35:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-04-03 07:35:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure list_replace [2023-04-03 07:35:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-04-03 07:35:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2023-04-03 07:35:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-04-03 07:35:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2023-04-03 07:35:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-04-03 07:35:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2023-04-03 07:35:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2023-04-03 07:35:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2023-04-03 07:35:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2023-04-03 07:35:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be64 [2023-04-03 07:35:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_encode_hyper [2023-04-03 07:35:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_choose_list [2023-04-03 07:35:55,051 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize [2023-04-03 07:35:55,051 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_up [2023-04-03 07:35:55,051 INFO L138 BoogieDeclarations]: Found implementation of procedure _find_entry [2023-04-03 07:35:55,051 INFO L138 BoogieDeclarations]: Found implementation of procedure _has_tag [2023-04-03 07:35:55,051 INFO L138 BoogieDeclarations]: Found implementation of procedure _add_entry [2023-04-03 07:35:55,051 INFO L138 BoogieDeclarations]: Found implementation of procedure _set_range [2023-04-03 07:35:55,051 INFO L138 BoogieDeclarations]: Found implementation of procedure _preload_range [2023-04-03 07:35:55,051 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_is_sector_init [2023-04-03 07:35:55,051 INFO L138 BoogieDeclarations]: Found implementation of procedure _range_has_tag [2023-04-03 07:35:55,051 INFO L138 BoogieDeclarations]: Found implementation of procedure is_range_written [2023-04-03 07:35:55,051 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_mark_sectors_init [2023-04-03 07:35:55,051 INFO L138 BoogieDeclarations]: Found implementation of procedure mark_written_sectors [2023-04-03 07:35:55,051 INFO L138 BoogieDeclarations]: Found implementation of procedure print_short_extent [2023-04-03 07:35:55,051 INFO L138 BoogieDeclarations]: Found implementation of procedure print_clist [2023-04-03 07:35:55,051 INFO L138 BoogieDeclarations]: Found implementation of procedure add_to_commitlist [2023-04-03 07:35:55,051 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_mark_for_commit [2023-04-03 07:35:55,052 INFO L138 BoogieDeclarations]: Found implementation of procedure print_bl_extent [2023-04-03 07:35:55,052 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_extent [2023-04-03 07:35:55,052 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_put_extent [2023-04-03 07:35:55,052 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_alloc_extent [2023-04-03 07:35:55,052 INFO L138 BoogieDeclarations]: Found implementation of procedure print_elist [2023-04-03 07:35:55,052 INFO L138 BoogieDeclarations]: Found implementation of procedure extents_consistent [2023-04-03 07:35:55,052 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_add_merge_extent [2023-04-03 07:35:55,052 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_find_get_extent [2023-04-03 07:35:55,052 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_find_get_extent_locked [2023-04-03 07:35:55,052 INFO L138 BoogieDeclarations]: Found implementation of procedure encode_pnfs_block_layoutupdate [2023-04-03 07:35:55,052 INFO L138 BoogieDeclarations]: Found implementation of procedure _prep_new_extent [2023-04-03 07:35:55,053 INFO L138 BoogieDeclarations]: Found implementation of procedure _front_merge [2023-04-03 07:35:55,055 INFO L138 BoogieDeclarations]: Found implementation of procedure set_to_rw [2023-04-03 07:35:55,056 INFO L138 BoogieDeclarations]: Found implementation of procedure clean_pnfs_block_layoutupdate [2023-04-03 07:35:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_push_one_short_extent [2023-04-03 07:35:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_pop_one_short_extent [2023-04-03 07:35:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_free_short_extents [2023-04-03 07:35:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_79 [2023-04-03 07:35:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_80 [2023-04-03 07:35:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_105 [2023-04-03 07:35:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_106 [2023-04-03 07:35:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32p [2023-04-03 07:35:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab64p [2023-04-03 07:35:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __be64_to_cpup [2023-04-03 07:35:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2023-04-03 07:35:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_CAST [2023-04-03 07:35:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-04-03 07:35:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be64 [2023-04-03 07:35:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_decode_hyper [2023-04-03 07:35:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure decode_sector_number [2023-04-03 07:35:55,058 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_blkdev_put [2023-04-03 07:35:55,058 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_pipe_downcall [2023-04-03 07:35:55,058 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_pipe_destroy_msg [2023-04-03 07:35:55,058 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_blk_decode_device [2023-04-03 07:35:55,058 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_devid [2023-04-03 07:35:55,058 INFO L138 BoogieDeclarations]: Found implementation of procedure verify_extent [2023-04-03 07:35:55,058 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_blk_process_layoutget [2023-04-03 07:35:55,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_add___1 [2023-04-03 07:35:55,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_sub___1 [2023-04-03 07:35:55,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_lock___1 [2023-04-03 07:35:55,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock___1 [2023-04-03 07:35:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock___1 [2023-04-03 07:35:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock___1 [2023-04-03 07:35:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic___1 [2023-04-03 07:35:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_remove [2023-04-03 07:35:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_blk_metadev_release [2023-04-03 07:35:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_free_block_dev [2023-04-03 07:35:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2023-04-03 07:35:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-04-03 07:35:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spi_alloc_master [2023-04-03 07:35:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-03 07:35:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-03 07:35:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-03 07:35:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-03 07:35:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-04-03 07:35:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_init [2023-04-03 07:35:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2023-04-03 07:35:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-04-03 07:35:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kzalloc [2023-04-03 07:35:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-04-03 07:35:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-03 07:35:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 07:35:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-03 07:35:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 07:35:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2023-04-03 07:35:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-03 07:35:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-04-03 07:35:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-04-03 07:35:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xzalloc [2023-04-03 07:35:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-03 07:35:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-03 07:35:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2023-04-03 07:35:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2023-04-03 07:35:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_thread_create [2023-04-03 07:35:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_thread_create_N [2023-04-03 07:35:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_thread_join [2023-04-03 07:35:55,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_thread_join_N [2023-04-03 07:35:55,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock__xmit_lock_of_netdev_queue [2023-04-03 07:35:55,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock__xmit_lock_of_netdev_queue [2023-04-03 07:35:55,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock__xmit_lock_of_netdev_queue [2023-04-03 07:35:55,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait__xmit_lock_of_netdev_queue [2023-04-03 07:35:55,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked__xmit_lock_of_netdev_queue [2023-04-03 07:35:55,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock__xmit_lock_of_netdev_queue [2023-04-03 07:35:55,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended__xmit_lock_of_netdev_queue [2023-04-03 07:35:55,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock__xmit_lock_of_netdev_queue [2023-04-03 07:35:55,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_addr_list_lock_of_net_device [2023-04-03 07:35:55,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_addr_list_lock_of_net_device [2023-04-03 07:35:55,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_addr_list_lock_of_net_device [2023-04-03 07:35:55,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_addr_list_lock_of_net_device [2023-04-03 07:35:55,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_addr_list_lock_of_net_device [2023-04-03 07:35:55,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_addr_list_lock_of_net_device [2023-04-03 07:35:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_addr_list_lock_of_net_device [2023-04-03 07:35:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_addr_list_lock_of_net_device [2023-04-03 07:35:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_alloc_lock_of_task_struct [2023-04-03 07:35:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_alloc_lock_of_task_struct [2023-04-03 07:35:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_alloc_lock_of_task_struct [2023-04-03 07:35:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_alloc_lock_of_task_struct [2023-04-03 07:35:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_alloc_lock_of_task_struct [2023-04-03 07:35:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_alloc_lock_of_task_struct [2023-04-03 07:35:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_alloc_lock_of_task_struct [2023-04-03 07:35:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_alloc_lock_of_task_struct [2023-04-03 07:35:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bl_ext_lock_of_pnfs_block_layout [2023-04-03 07:35:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bl_ext_lock_of_pnfs_block_layout [2023-04-03 07:35:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_bl_ext_lock_of_pnfs_block_layout [2023-04-03 07:35:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_bl_ext_lock_of_pnfs_block_layout [2023-04-03 07:35:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_bl_ext_lock_of_pnfs_block_layout [2023-04-03 07:35:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_bl_ext_lock_of_pnfs_block_layout [2023-04-03 07:35:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_bl_ext_lock_of_pnfs_block_layout [2023-04-03 07:35:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_bl_ext_lock_of_pnfs_block_layout [2023-04-03 07:35:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bm_lock_of_block_mount_id [2023-04-03 07:35:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bm_lock_of_block_mount_id [2023-04-03 07:35:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_bm_lock_of_block_mount_id [2023-04-03 07:35:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_bm_lock_of_block_mount_id [2023-04-03 07:35:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_bm_lock_of_block_mount_id [2023-04-03 07:35:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_bm_lock_of_block_mount_id [2023-04-03 07:35:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_bm_lock_of_block_mount_id [2023-04-03 07:35:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_bm_lock_of_block_mount_id [2023-04-03 07:35:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_cl_lock_of_nfs_client [2023-04-03 07:35:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_cl_lock_of_nfs_client [2023-04-03 07:35:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_cl_lock_of_nfs_client [2023-04-03 07:35:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_cl_lock_of_nfs_client [2023-04-03 07:35:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_cl_lock_of_nfs_client [2023-04-03 07:35:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_cl_lock_of_nfs_client [2023-04-03 07:35:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_cl_lock_of_nfs_client [2023-04-03 07:35:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_cl_lock_of_nfs_client [2023-04-03 07:35:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_i_lock_of_inode [2023-04-03 07:35:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_i_lock_of_inode [2023-04-03 07:35:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_i_lock_of_inode [2023-04-03 07:35:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_i_lock_of_inode [2023-04-03 07:35:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_i_lock_of_inode [2023-04-03 07:35:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_i_lock_of_inode [2023-04-03 07:35:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_i_lock_of_inode [2023-04-03 07:35:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_i_lock_of_inode [2023-04-03 07:35:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_im_lock_of_pnfs_inval_markings [2023-04-03 07:35:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_im_lock_of_pnfs_inval_markings [2023-04-03 07:35:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_im_lock_of_pnfs_inval_markings [2023-04-03 07:35:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_im_lock_of_pnfs_inval_markings [2023-04-03 07:35:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_im_lock_of_pnfs_inval_markings [2023-04-03 07:35:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_im_lock_of_pnfs_inval_markings [2023-04-03 07:35:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_im_lock_of_pnfs_inval_markings [2023-04-03 07:35:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_im_lock_of_pnfs_inval_markings [2023-04-03 07:35:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock [2023-04-03 07:35:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock [2023-04-03 07:35:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_lock [2023-04-03 07:35:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_lock [2023-04-03 07:35:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_lock [2023-04-03 07:35:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_lock [2023-04-03 07:35:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_lock [2023-04-03 07:35:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_lock [2023-04-03 07:35:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_lock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_lock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_lock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_lock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_lock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_lock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_res_counter [2023-04-03 07:35:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_res_counter [2023-04-03 07:35:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_lock_of_res_counter [2023-04-03 07:35:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_lock_of_res_counter [2023-04-03 07:35:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_lock_of_res_counter [2023-04-03 07:35:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_lock_of_res_counter [2023-04-03 07:35:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_lock_of_res_counter [2023-04-03 07:35:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_lock_of_res_counter [2023-04-03 07:35:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lru_lock_of_netns_frags [2023-04-03 07:35:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lru_lock_of_netns_frags [2023-04-03 07:35:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_lru_lock_of_netns_frags [2023-04-03 07:35:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_lru_lock_of_netns_frags [2023-04-03 07:35:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_lru_lock_of_netns_frags [2023-04-03 07:35:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_lru_lock_of_netns_frags [2023-04-03 07:35:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_lru_lock_of_netns_frags [2023-04-03 07:35:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_lru_lock_of_netns_frags [2023-04-03 07:35:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_node_size_lock_of_pglist_data [2023-04-03 07:35:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_node_size_lock_of_pglist_data [2023-04-03 07:35:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_node_size_lock_of_pglist_data [2023-04-03 07:35:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_node_size_lock_of_pglist_data [2023-04-03 07:35:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_node_size_lock_of_pglist_data [2023-04-03 07:35:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_node_size_lock_of_pglist_data [2023-04-03 07:35:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_node_size_lock_of_pglist_data [2023-04-03 07:35:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_node_size_lock_of_pglist_data [2023-04-03 07:35:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_ptl [2023-04-03 07:35:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_ptl [2023-04-03 07:35:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_ptl [2023-04-03 07:35:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_ptl [2023-04-03 07:35:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_ptl [2023-04-03 07:35:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_ptl [2023-04-03 07:35:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_ptl [2023-04-03 07:35:55,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_ptl [2023-04-03 07:35:55,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_siglock_of_sighand_struct [2023-04-03 07:35:55,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_siglock_of_sighand_struct [2023-04-03 07:35:55,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_siglock_of_sighand_struct [2023-04-03 07:35:55,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_siglock_of_sighand_struct [2023-04-03 07:35:55,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_siglock_of_sighand_struct [2023-04-03 07:35:55,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_siglock_of_sighand_struct [2023-04-03 07:35:55,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_siglock_of_sighand_struct [2023-04-03 07:35:55,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_siglock_of_sighand_struct [2023-04-03 07:35:55,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_sk_dst_lock_of_sock [2023-04-03 07:35:55,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_sk_dst_lock_of_sock [2023-04-03 07:35:55,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_sk_dst_lock_of_sock [2023-04-03 07:35:55,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_sk_dst_lock_of_sock [2023-04-03 07:35:55,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_sk_dst_lock_of_sock [2023-04-03 07:35:55,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_sk_dst_lock_of_sock [2023-04-03 07:35:55,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_sk_dst_lock_of_sock [2023-04-03 07:35:55,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_sk_dst_lock_of_sock [2023-04-03 07:35:55,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_slock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_slock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_slock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_slock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_slock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_slock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_slock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_slock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_global_lock_of_net_device [2023-04-03 07:35:55,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_global_lock_of_net_device [2023-04-03 07:35:55,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_tx_global_lock_of_net_device [2023-04-03 07:35:55,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_tx_global_lock_of_net_device [2023-04-03 07:35:55,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_tx_global_lock_of_net_device [2023-04-03 07:35:55,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_tx_global_lock_of_net_device [2023-04-03 07:35:55,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_tx_global_lock_of_net_device [2023-04-03 07:35:55,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_tx_global_lock_of_net_device [2023-04-03 07:35:55,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 07:35:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-04-03 07:35:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 07:35:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-04-03 07:35:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2023-04-03 07:35:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-04-03 07:35:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-04-03 07:35:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __compiletime_assert_206 [2023-04-03 07:35:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __compiletime_assert_535 [2023-04-03 07:35:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __compiletime_assert_536 [2023-04-03 07:35:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2023-04-03 07:35:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2023-04-03 07:35:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-03 07:35:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-04-03 07:35:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-04-03 07:35:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2023-04-03 07:35:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __lock_page [2023-04-03 07:35:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-04-03 07:35:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-03 07:35:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-04-03 07:35:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-04-03 07:35:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2023-04-03 07:35:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2023-04-03 07:35:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2023-04-03 07:35:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2023-04-03 07:35:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2023-04-03 07:35:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_page_buffers [2023-04-03 07:35:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages_current [2023-04-03 07:35:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure bh_submit_read [2023-04-03 07:35:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure bh_uptodate_or_lock [2023-04-03 07:35:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_add_page [2023-04-03 07:35:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_alloc_bioset [2023-04-03 07:35:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2023-04-03 07:35:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure blkdev_get_by_dev [2023-04-03 07:35:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure blkdev_put [2023-04-03 07:35:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-04-03 07:35:55,072 INFO L138 BoogieDeclarations]: Found implementation of procedure dput [2023-04-03 07:35:55,072 INFO L138 BoogieDeclarations]: Found implementation of procedure end_page_writeback [2023-04-03 07:35:55,072 INFO L138 BoogieDeclarations]: Found implementation of procedure find_get_page [2023-04-03 07:35:55,072 INFO L138 BoogieDeclarations]: Found implementation of procedure find_or_create_page [2023-04-03 07:35:55,072 INFO L138 BoogieDeclarations]: Found implementation of procedure free_buffer_head [2023-04-03 07:35:55,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2023-04-03 07:35:55,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-04-03 07:35:55,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-04-03 07:35:55,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 07:35:55,072 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-04-03 07:35:55,072 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2023-04-03 07:35:55,072 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2023-04-03 07:35:55,072 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2023-04-03 07:35:55,072 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-04-03 07:35:55,072 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2023-04-03 07:35:55,072 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-04-03 07:35:55,072 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2023-04-03 07:35:55,075 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_proc_getdeviceinfo [2023-04-03 07:35:55,075 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_proc_getdevicelist [2023-04-03 07:35:55,075 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_dreq_bytes_left [2023-04-03 07:35:55,075 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_pageio_reset_read_mds [2023-04-03 07:35:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_pageio_reset_write_mds [2023-04-03 07:35:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_generic_pg_init_read [2023-04-03 07:35:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_generic_pg_init_write [2023-04-03 07:35:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_generic_pg_readpages [2023-04-03 07:35:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_generic_pg_test [2023-04-03 07:35:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_generic_pg_writepages [2023-04-03 07:35:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_ld_read_done [2023-04-03 07:35:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_ld_write_done [2023-04-03 07:35:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_register_layoutdriver [2023-04-03 07:35:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_set_lo_fail [2023-04-03 07:35:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_unregister_layoutdriver [2023-04-03 07:35:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-03 07:35:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2023-04-03 07:35:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-04-03 07:35:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure radix_tree_next_hole [2023-04-03 07:35:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2023-04-03 07:35:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lockdep_current_cpu_online [2023-04-03 07:35:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure register_pernet_subsys [2023-04-03 07:35:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2023-04-03 07:35:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_d_lookup_sb [2023-04-03 07:35:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_destroy_pipe_data [2023-04-03 07:35:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_get_sb_net [2023-04-03 07:35:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_mkpipe_data [2023-04-03 07:35:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_mkpipe_dentry [2023-04-03 07:35:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_pipe_generic_upcall [2023-04-03 07:35:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_pipefs_notifier_register [2023-04-03 07:35:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_pipefs_notifier_unregister [2023-04-03 07:35:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_put_sb_net [2023-04-03 07:35:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_queue_upcall [2023-04-03 07:35:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_unlink [2023-04-03 07:35:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-04-03 07:35:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_bio [2023-04-03 07:35:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure test_set_page_writeback [2023-04-03 07:35:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2023-04-03 07:35:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_page [2023-04-03 07:35:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_subsys [2023-04-03 07:35:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_on_page_bit [2023-04-03 07:35:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-04-03 07:35:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_encode_opaque_fixed [2023-04-03 07:35:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_init_decode_pages [2023-04-03 07:35:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_inline_decode [2023-04-03 07:35:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_reserve_space [2023-04-03 07:35:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_set_scratch_buffer [2023-04-03 07:35:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure default_wake_function [2023-04-03 07:35:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 07:35:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-03 07:35:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-03 07:35:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-03 07:35:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 07:35:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-03 07:35:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-03 07:35:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-03 07:35:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kzalloc [2023-04-03 07:35:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-03 07:35:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 07:35:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-04-03 07:35:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-04-03 07:35:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 07:35:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-04-03 07:35:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-04-03 07:35:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-04-03 07:35:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-04-03 07:35:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit_lock [2023-04-03 07:35:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-04-03 07:35:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 07:35:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-03 07:35:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-04-03 07:35:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-04-03 07:35:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-04-03 07:35:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-03 07:35:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-03 07:35:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-04-03 07:35:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-04-03 07:35:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-04-03 07:35:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-04-03 07:35:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-04-03 07:35:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-04-03 07:35:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 07:35:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_and_test [2023-04-03 07:35:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2023-04-03 07:35:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-04-03 07:35:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2023-04-03 07:35:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2023-04-03 07:35:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2023-04-03 07:35:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2023-04-03 07:35:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bl_ext_lock_of_pnfs_block_layout [2023-04-03 07:35:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bl_ext_lock_of_pnfs_block_layout [2023-04-03 07:35:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bm_lock_of_block_mount_id [2023-04-03 07:35:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bm_lock_of_block_mount_id [2023-04-03 07:35:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 07:35:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_init [2023-04-03 07:35:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 07:35:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-04-03 07:35:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-03 07:35:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-03 07:35:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-04-03 07:35:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-04-03 07:35:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_add [2023-04-03 07:35:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_sub [2023-04-03 07:35:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-03 07:35:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2023-04-03 07:35:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2023-04-03 07:35:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-03 07:35:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-04-03 07:35:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_79 [2023-04-03 07:35:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_81 [2023-04-03 07:35:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-04-03 07:35:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_80 [2023-04-03 07:35:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_82 [2023-04-03 07:35:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-03 07:35:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_lock [2023-04-03 07:35:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_unlock [2023-04-03 07:35:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2023-04-03 07:35:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lockdep_current_cpu_online [2023-04-03 07:35:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2023-04-03 07:35:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2023-04-03 07:35:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-04-03 07:35:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2023-04-03 07:35:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2023-04-03 07:35:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 07:35:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2023-04-03 07:35:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-04-03 07:35:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-04-03 07:35:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-04-03 07:35:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-04-03 07:35:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages_current [2023-04-03 07:35:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2023-04-03 07:35:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2023-04-03 07:35:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2023-04-03 07:35:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2023-04-03 07:35:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-04-03 07:35:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-04-03 07:35:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-04-03 07:35:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2023-04-03 07:35:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2023-04-03 07:35:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure dput [2023-04-03 07:35:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure radix_tree_next_hole [2023-04-03 07:35:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2023-04-03 07:35:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure submit_bio [2023-04-03 07:35:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure PageLocked [2023-04-03 07:35:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure PageError [2023-04-03 07:35:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure PageReferenced [2023-04-03 07:35:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure PageDirty [2023-04-03 07:35:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure PagePrivate [2023-04-03 07:35:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure PageWriteback [2023-04-03 07:35:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure PageMappedToDisk [2023-04-03 07:35:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure PageUptodate [2023-04-03 07:35:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure SetPageUptodate [2023-04-03 07:35:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure test_set_page_writeback [2023-04-03 07:35:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure set_page_writeback [2023-04-03 07:35:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2023-04-03 07:35:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2023-04-03 07:35:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2023-04-03 07:35:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2023-04-03 07:35:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure __compiletime_assert_206 [2023-04-03 07:35:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure zero_user_segments [2023-04-03 07:35:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-03 07:35:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure zero_user_segment [2023-04-03 07:35:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure bio_alloc_bioset [2023-04-03 07:35:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2023-04-03 07:35:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure bio_alloc [2023-04-03 07:35:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure bio_add_page [2023-04-03 07:35:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure find_get_page [2023-04-03 07:35:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure find_or_create_page [2023-04-03 07:35:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure __lock_page [2023-04-03 07:35:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_page [2023-04-03 07:35:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure trylock_page [2023-04-03 07:35:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure lock_page [2023-04-03 07:35:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure wait_on_page_bit [2023-04-03 07:35:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure wait_on_page_locked [2023-04-03 07:35:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure end_page_writeback [2023-04-03 07:35:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure set_buffer_mapped [2023-04-03 07:35:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_page_buffers [2023-04-03 07:35:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure free_buffer_head [2023-04-03 07:35:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure bh_uptodate_or_lock [2023-04-03 07:35:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure bh_submit_read [2023-04-03 07:35:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_pipefs_notifier_register [2023-04-03 07:35:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rpc_pipefs_notifier_register_83 [2023-04-03 07:35:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_pipefs_notifier_unregister [2023-04-03 07:35:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rpc_pipefs_notifier_unregister_84 [2023-04-03 07:35:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rpc_pipefs_notifier_unregister_85 [2023-04-03 07:35:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_d_lookup_sb [2023-04-03 07:35:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_get_sb_net [2023-04-03 07:35:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_put_sb_net [2023-04-03 07:35:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_pipe_generic_upcall [2023-04-03 07:35:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_mkpipe_data [2023-04-03 07:35:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_destroy_pipe_data [2023-04-03 07:35:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_mkpipe_dentry [2023-04-03 07:35:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_unlink [2023-04-03 07:35:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 07:35:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 07:35:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-03 07:35:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-03 07:35:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-03 07:35:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure register_pernet_subsys [2023-04-03 07:35:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_subsys [2023-04-03 07:35:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_I [2023-04-03 07:35:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_SB [2023-04-03 07:35:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_SERVER [2023-04-03 07:35:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_register_layoutdriver [2023-04-03 07:35:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_unregister_layoutdriver [2023-04-03 07:35:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_proc_getdevicelist [2023-04-03 07:35:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_proc_getdeviceinfo [2023-04-03 07:35:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_generic_pg_init_read [2023-04-03 07:35:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_generic_pg_readpages [2023-04-03 07:35:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_generic_pg_init_write [2023-04-03 07:35:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_generic_pg_writepages [2023-04-03 07:35:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_generic_pg_test [2023-04-03 07:35:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_set_lo_fail [2023-04-03 07:35:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_ld_write_done [2023-04-03 07:35:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_ld_read_done [2023-04-03 07:35:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_pageio_reset_read_mds [2023-04-03 07:35:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_pageio_reset_write_mds [2023-04-03 07:35:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_dreq_bytes_left [2023-04-03 07:35:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_page_array_len [2023-04-03 07:35:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2023-04-03 07:35:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure BL_INIT_INVAL_MARKS [2023-04-03 07:35:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 07:35:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 07:35:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure BLK_LO2EXT [2023-04-03 07:35:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure BLK_LSEG2EXT [2023-04-03 07:35:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure bl_pipe_downcall [2023-04-03 07:35:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure bl_pipe_destroy_msg [2023-04-03 07:35:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_blk_decode_device [2023-04-03 07:35:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_blk_process_layoutget [2023-04-03 07:35:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure bl_free_block_dev [2023-04-03 07:35:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure bl_find_get_extent [2023-04-03 07:35:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure bl_mark_sectors_init [2023-04-03 07:35:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure bl_put_extent [2023-04-03 07:35:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure bl_is_sector_init [2023-04-03 07:35:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure encode_pnfs_block_layoutupdate [2023-04-03 07:35:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure clean_pnfs_block_layoutupdate [2023-04-03 07:35:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure bl_mark_for_commit [2023-04-03 07:35:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure bl_push_one_short_extent [2023-04-03 07:35:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure bl_pop_one_short_extent [2023-04-03 07:35:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure bl_free_short_extents [2023-04-03 07:35:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure print_page [2023-04-03 07:35:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure is_hole [2023-04-03 07:35:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure is_writable [2023-04-03 07:35:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_parallel [2023-04-03 07:35:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure get_parallel [2023-04-03 07:35:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_parallel [2023-04-03 07:35:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-04-03 07:35:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure put_parallel [2023-04-03 07:35:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure bl_submit_bio [2023-04-03 07:35:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure bl_alloc_init_bio [2023-04-03 07:35:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure do_add_page_to_bio [2023-04-03 07:35:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure bl_add_page_to_bio [2023-04-03 07:35:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_read [2023-04-03 07:35:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure bl_read_cleanup [2023-04-03 07:35:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_par_io_read [2023-04-03 07:35:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure bl_read_pagelist [2023-04-03 07:35:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure mark_extents_written [2023-04-03 07:35:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_write_zero [2023-04-03 07:35:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_write [2023-04-03 07:35:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure bl_write_cleanup [2023-04-03 07:35:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_par_io_write [2023-04-03 07:35:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure mark_bad_read [2023-04-03 07:35:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure map_block [2023-04-03 07:35:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure bl_read_single_end_io [2023-04-03 07:35:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure __compiletime_assert_535 [2023-04-03 07:35:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure __compiletime_assert_536 [2023-04-03 07:35:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure bl_do_readpage_sync [2023-04-03 07:35:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-03 07:35:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure bl_read_partial_page_sync [2023-04-03 07:35:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure init_page_for_write [2023-04-03 07:35:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure bl_find_get_zeroing_page [2023-04-03 07:35:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure bl_write_pagelist [2023-04-03 07:35:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure release_extents [2023-04-03 07:35:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure release_inval_marks [2023-04-03 07:35:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure bl_free_layout_hdr [2023-04-03 07:35:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure bl_alloc_layout_hdr [2023-04-03 07:35:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure bl_free_lseg [2023-04-03 07:35:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure bl_alloc_lseg [2023-04-03 07:35:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure bl_encode_layoutcommit [2023-04-03 07:35:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure bl_cleanup_layoutcommit [2023-04-03 07:35:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure free_blk_mountid [2023-04-03 07:35:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_blk_get_deviceinfo [2023-04-03 07:35:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure bl_set_layoutdriver [2023-04-03 07:35:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure bl_clear_layoutdriver [2023-04-03 07:35:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure is_aligned_req [2023-04-03 07:35:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure bl_pg_init_read [2023-04-03 07:35:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure bl_pg_test_read [2023-04-03 07:35:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_num_cont_bytes [2023-04-03 07:35:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure bl_pg_init_write [2023-04-03 07:35:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure bl_pg_test_write [2023-04-03 07:35:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4blocklayout_register_sb [2023-04-03 07:35:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4blocklayout_unregister_sb [2023-04-03 07:35:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_pipefs_event [2023-04-03 07:35:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4blocklayout_register_net [2023-04-03 07:35:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4blocklayout_unregister_net [2023-04-03 07:35:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4blocklayout_net_init [2023-04-03 07:35:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4blocklayout_net_exit [2023-04-03 07:35:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4blocklayout_init [2023-04-03 07:35:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4blocklayout_exit [2023-04-03 07:35:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_nfs4blocklayout_exit_7_2 [2023-04-03 07:35:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_init_nfs4blocklayout_init_7_13 [2023-04-03 07:35:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_allocate_external_0 [2023-04-03 07:35:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_deregister_5_1 [2023-04-03 07:35:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_deregister_dummy_resourceless_instance_4_7_4 [2023-04-03 07:35:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_deregister_dummy_resourceless_instance_5_7_5 [2023-04-03 07:35:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_deregister_dummy_resourceless_instance_6_7_6 [2023-04-03 07:35:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_register_6_2 [2023-04-03 07:35:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_register_dummy_resourceless_instance_4_7_7 [2023-04-03 07:35:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_register_dummy_resourceless_instance_5_7_8 [2023-04-03 07:35:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_register_dummy_resourceless_instance_6_7_9 [2023-04-03 07:35:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_0_3 [2023-04-03 07:35:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_1_3 [2023-04-03 07:35:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_1_7 [2023-04-03 07:35:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_2_12 [2023-04-03 07:35:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_2_13 [2023-04-03 07:35:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_2_14 [2023-04-03 07:35:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_2_15 [2023-04-03 07:35:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_2_16 [2023-04-03 07:35:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_2_17 [2023-04-03 07:35:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_2_18 [2023-04-03 07:35:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_2_19 [2023-04-03 07:35:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_2_22 [2023-04-03 07:35:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_2_23 [2023-04-03 07:35:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_2_24 [2023-04-03 07:35:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_2_3 [2023-04-03 07:35:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_2_9 [2023-04-03 07:35:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_3_12 [2023-04-03 07:35:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_3_13 [2023-04-03 07:35:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_3_14 [2023-04-03 07:35:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_3_15 [2023-04-03 07:35:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_3_16 [2023-04-03 07:35:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_3_17 [2023-04-03 07:35:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_3_18 [2023-04-03 07:35:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_3_19 [2023-04-03 07:35:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_3_22 [2023-04-03 07:35:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_3_23 [2023-04-03 07:35:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_3_24 [2023-04-03 07:35:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_3_3 [2023-04-03 07:35:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_3_9 [2023-04-03 07:35:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_4_10 [2023-04-03 07:35:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_4_3 [2023-04-03 07:35:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_4_7 [2023-04-03 07:35:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_entry_EMGentry_7 [2023-04-03 07:35:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 07:35:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_external_data [2023-04-03 07:35:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rpc_pipefs_notifier_register [2023-04-03 07:35:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rpc_pipefs_notifier_unregister [2023-04-03 07:35:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_struct_notifier_block_dummy_resourceless_instance_0 [2023-04-03 07:35:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_struct_pernet_operations_dummy_resourceless_instance_1 [2023-04-03 07:35:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_struct_pnfs_layoutdriver_type_dummy_resourceless_instance_2 [2023-04-03 07:35:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_struct_pnfs_layoutdriver_type_dummy_resourceless_instance_3 [2023-04-03 07:35:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_struct_rpc_pipe_ops_dummy_resourceless_instance_4 [2023-04-03 07:35:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-04-03 07:35:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-04-03 07:35:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-04-03 07:35:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_1 [2023-04-03 07:35:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_5 [2023-04-03 07:35:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_1 [2023-04-03 07:35:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_5 [2023-04-03 07:35:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_1 [2023-04-03 07:35:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_5 [2023-04-03 07:35:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_3_1 [2023-04-03 07:35:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_3_5 [2023-04-03 07:35:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_4_1 [2023-04-03 07:35:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_4_5 [2023-04-03 07:35:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-04-03 07:35:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2023-04-03 07:35:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure list_replace [2023-04-03 07:35:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-04-03 07:35:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2023-04-03 07:35:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-04-03 07:35:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2023-04-03 07:35:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-04-03 07:35:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_im_lock_of_pnfs_inval_markings [2023-04-03 07:35:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_im_lock_of_pnfs_inval_markings [2023-04-03 07:35:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2023-04-03 07:35:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2023-04-03 07:35:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_105 [2023-04-03 07:35:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2023-04-03 07:35:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_79 [2023-04-03 07:35:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_106 [2023-04-03 07:35:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2023-04-03 07:35:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_80 [2023-04-03 07:35:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2023-04-03 07:35:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2023-04-03 07:35:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2023-04-03 07:35:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be64 [2023-04-03 07:35:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_encode_opaque_fixed [2023-04-03 07:35:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_encode_hyper [2023-04-03 07:35:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_reserve_space [2023-04-03 07:35:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure bl_choose_list [2023-04-03 07:35:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure bl_alloc_extent [2023-04-03 07:35:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure bl_add_merge_extent [2023-04-03 07:35:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure normalize [2023-04-03 07:35:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_up [2023-04-03 07:35:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure _find_entry [2023-04-03 07:35:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure _has_tag [2023-04-03 07:35:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure _add_entry [2023-04-03 07:35:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure _set_range [2023-04-03 07:35:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure _preload_range [2023-04-03 07:35:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure _range_has_tag [2023-04-03 07:35:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure is_range_written [2023-04-03 07:35:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure mark_written_sectors [2023-04-03 07:35:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure print_short_extent [2023-04-03 07:35:55,153 INFO L130 BoogieDeclarations]: Found specification of procedure print_clist [2023-04-03 07:35:55,153 INFO L130 BoogieDeclarations]: Found specification of procedure add_to_commitlist [2023-04-03 07:35:55,153 INFO L130 BoogieDeclarations]: Found specification of procedure print_bl_extent [2023-04-03 07:35:55,153 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_extent [2023-04-03 07:35:55,153 INFO L130 BoogieDeclarations]: Found specification of procedure print_elist [2023-04-03 07:35:55,153 INFO L130 BoogieDeclarations]: Found specification of procedure extents_consistent [2023-04-03 07:35:55,153 INFO L130 BoogieDeclarations]: Found specification of procedure bl_find_get_extent_locked [2023-04-03 07:35:55,153 INFO L130 BoogieDeclarations]: Found specification of procedure _prep_new_extent [2023-04-03 07:35:55,153 INFO L130 BoogieDeclarations]: Found specification of procedure _front_merge [2023-04-03 07:35:55,153 INFO L130 BoogieDeclarations]: Found specification of procedure set_to_rw [2023-04-03 07:35:55,153 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32p [2023-04-03 07:35:55,153 INFO L130 BoogieDeclarations]: Found specification of procedure __swab64p [2023-04-03 07:35:55,153 INFO L130 BoogieDeclarations]: Found specification of procedure __be64_to_cpup [2023-04-03 07:35:55,153 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2023-04-03 07:35:55,153 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-04-03 07:35:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-04-03 07:35:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_CAST [2023-04-03 07:35:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-04-03 07:35:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure default_wake_function [2023-04-03 07:35:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2023-04-03 07:35:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2023-04-03 07:35:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-04-03 07:35:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_get_by_dev [2023-04-03 07:35:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_put [2023-04-03 07:35:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-04-03 07:35:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2023-04-03 07:35:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-04-03 07:35:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-04-03 07:35:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be64 [2023-04-03 07:35:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_decode_hyper [2023-04-03 07:35:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_init_decode_pages [2023-04-03 07:35:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_set_scratch_buffer [2023-04-03 07:35:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_inline_decode [2023-04-03 07:35:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_queue_upcall [2023-04-03 07:35:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_blkdev_put [2023-04-03 07:35:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure decode_sector_number [2023-04-03 07:35:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure translate_devid [2023-04-03 07:35:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure verify_extent [2023-04-03 07:35:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_add___1 [2023-04-03 07:35:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_sub___1 [2023-04-03 07:35:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_lock___1 [2023-04-03 07:35:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_unlock___1 [2023-04-03 07:35:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock___1 [2023-04-03 07:35:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock___1 [2023-04-03 07:35:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic___1 [2023-04-03 07:35:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure dev_remove [2023-04-03 07:35:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_blk_metadev_release [2023-04-03 07:35:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xzalloc [2023-04-03 07:35:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2023-04-03 07:35:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-04-03 07:35:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 07:35:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spi_alloc_master [2023-04-03 07:35:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-03 07:35:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2023-04-03 07:35:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-04-03 07:35:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-04-03 07:35:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-04-03 07:35:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2023-04-03 07:35:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-04-03 07:35:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-03 07:35:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 07:35:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-03 07:35:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 07:35:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 07:35:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-03 07:35:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-03 07:35:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2023-04-03 07:35:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2023-04-03 07:35:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 07:35:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-03 07:35:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_thread_create [2023-04-03 07:35:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_thread_create_N [2023-04-03 07:35:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_thread_join [2023-04-03 07:35:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_thread_join_N [2023-04-03 07:35:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-04-03 07:35:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2023-04-03 07:35:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-04-03 07:35:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-04-03 07:35:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock__xmit_lock_of_netdev_queue [2023-04-03 07:35:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock__xmit_lock_of_netdev_queue [2023-04-03 07:35:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock__xmit_lock_of_netdev_queue [2023-04-03 07:35:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait__xmit_lock_of_netdev_queue [2023-04-03 07:35:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked__xmit_lock_of_netdev_queue [2023-04-03 07:35:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock__xmit_lock_of_netdev_queue [2023-04-03 07:35:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended__xmit_lock_of_netdev_queue [2023-04-03 07:35:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock__xmit_lock_of_netdev_queue [2023-04-03 07:35:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_addr_list_lock_of_net_device [2023-04-03 07:35:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_addr_list_lock_of_net_device [2023-04-03 07:35:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_addr_list_lock_of_net_device [2023-04-03 07:35:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_addr_list_lock_of_net_device [2023-04-03 07:35:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_addr_list_lock_of_net_device [2023-04-03 07:35:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_addr_list_lock_of_net_device [2023-04-03 07:35:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_addr_list_lock_of_net_device [2023-04-03 07:35:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_addr_list_lock_of_net_device [2023-04-03 07:35:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_alloc_lock_of_task_struct [2023-04-03 07:35:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_alloc_lock_of_task_struct [2023-04-03 07:35:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_alloc_lock_of_task_struct [2023-04-03 07:35:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_alloc_lock_of_task_struct [2023-04-03 07:35:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_alloc_lock_of_task_struct [2023-04-03 07:35:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_alloc_lock_of_task_struct [2023-04-03 07:35:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_alloc_lock_of_task_struct [2023-04-03 07:35:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_alloc_lock_of_task_struct [2023-04-03 07:35:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_bl_ext_lock_of_pnfs_block_layout [2023-04-03 07:35:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_bl_ext_lock_of_pnfs_block_layout [2023-04-03 07:35:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_bl_ext_lock_of_pnfs_block_layout [2023-04-03 07:35:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_bl_ext_lock_of_pnfs_block_layout [2023-04-03 07:35:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_bl_ext_lock_of_pnfs_block_layout [2023-04-03 07:35:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_bl_ext_lock_of_pnfs_block_layout [2023-04-03 07:35:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_bm_lock_of_block_mount_id [2023-04-03 07:35:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_bm_lock_of_block_mount_id [2023-04-03 07:35:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_bm_lock_of_block_mount_id [2023-04-03 07:35:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_bm_lock_of_block_mount_id [2023-04-03 07:35:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_bm_lock_of_block_mount_id [2023-04-03 07:35:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_bm_lock_of_block_mount_id [2023-04-03 07:35:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_cl_lock_of_nfs_client [2023-04-03 07:35:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_cl_lock_of_nfs_client [2023-04-03 07:35:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_cl_lock_of_nfs_client [2023-04-03 07:35:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_cl_lock_of_nfs_client [2023-04-03 07:35:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_cl_lock_of_nfs_client [2023-04-03 07:35:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_cl_lock_of_nfs_client [2023-04-03 07:35:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_cl_lock_of_nfs_client [2023-04-03 07:35:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_cl_lock_of_nfs_client [2023-04-03 07:35:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_i_lock_of_inode [2023-04-03 07:35:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_i_lock_of_inode [2023-04-03 07:35:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_i_lock_of_inode [2023-04-03 07:35:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_i_lock_of_inode [2023-04-03 07:35:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_i_lock_of_inode [2023-04-03 07:35:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_i_lock_of_inode [2023-04-03 07:35:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_i_lock_of_inode [2023-04-03 07:35:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_i_lock_of_inode [2023-04-03 07:35:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_im_lock_of_pnfs_inval_markings [2023-04-03 07:35:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_im_lock_of_pnfs_inval_markings [2023-04-03 07:35:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_im_lock_of_pnfs_inval_markings [2023-04-03 07:35:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_im_lock_of_pnfs_inval_markings [2023-04-03 07:35:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_im_lock_of_pnfs_inval_markings [2023-04-03 07:35:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_im_lock_of_pnfs_inval_markings [2023-04-03 07:35:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock [2023-04-03 07:35:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock [2023-04-03 07:35:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_lock [2023-04-03 07:35:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_lock [2023-04-03 07:35:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_lock [2023-04-03 07:35:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_lock [2023-04-03 07:35:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_lock [2023-04-03 07:35:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_lock [2023-04-03 07:35:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_lock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_lock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_lock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_lock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_lock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_lock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_res_counter [2023-04-03 07:35:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_res_counter [2023-04-03 07:35:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_lock_of_res_counter [2023-04-03 07:35:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_lock_of_res_counter [2023-04-03 07:35:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_lock_of_res_counter [2023-04-03 07:35:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_lock_of_res_counter [2023-04-03 07:35:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_lock_of_res_counter [2023-04-03 07:35:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_lock_of_res_counter [2023-04-03 07:35:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lru_lock_of_netns_frags [2023-04-03 07:35:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lru_lock_of_netns_frags [2023-04-03 07:35:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_lru_lock_of_netns_frags [2023-04-03 07:35:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_lru_lock_of_netns_frags [2023-04-03 07:35:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_lru_lock_of_netns_frags [2023-04-03 07:35:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_lru_lock_of_netns_frags [2023-04-03 07:35:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_lru_lock_of_netns_frags [2023-04-03 07:35:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_lru_lock_of_netns_frags [2023-04-03 07:35:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_node_size_lock_of_pglist_data [2023-04-03 07:35:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_node_size_lock_of_pglist_data [2023-04-03 07:35:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_node_size_lock_of_pglist_data [2023-04-03 07:35:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_node_size_lock_of_pglist_data [2023-04-03 07:35:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_node_size_lock_of_pglist_data [2023-04-03 07:35:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_node_size_lock_of_pglist_data [2023-04-03 07:35:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_node_size_lock_of_pglist_data [2023-04-03 07:35:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_node_size_lock_of_pglist_data [2023-04-03 07:35:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_ptl [2023-04-03 07:35:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_ptl [2023-04-03 07:35:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_ptl [2023-04-03 07:35:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_ptl [2023-04-03 07:35:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_ptl [2023-04-03 07:35:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_ptl [2023-04-03 07:35:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_ptl [2023-04-03 07:35:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_ptl [2023-04-03 07:35:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_siglock_of_sighand_struct [2023-04-03 07:35:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_siglock_of_sighand_struct [2023-04-03 07:35:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_siglock_of_sighand_struct [2023-04-03 07:35:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_siglock_of_sighand_struct [2023-04-03 07:35:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_siglock_of_sighand_struct [2023-04-03 07:35:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_siglock_of_sighand_struct [2023-04-03 07:35:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_siglock_of_sighand_struct [2023-04-03 07:35:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_siglock_of_sighand_struct [2023-04-03 07:35:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_sk_dst_lock_of_sock [2023-04-03 07:35:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_sk_dst_lock_of_sock [2023-04-03 07:35:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_sk_dst_lock_of_sock [2023-04-03 07:35:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_sk_dst_lock_of_sock [2023-04-03 07:35:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_sk_dst_lock_of_sock [2023-04-03 07:35:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_sk_dst_lock_of_sock [2023-04-03 07:35:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_sk_dst_lock_of_sock [2023-04-03 07:35:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_sk_dst_lock_of_sock [2023-04-03 07:35:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_slock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_slock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_slock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_slock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_slock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_slock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_slock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_slock_of_NOT_ARG_SIGN [2023-04-03 07:35:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_global_lock_of_net_device [2023-04-03 07:35:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_global_lock_of_net_device [2023-04-03 07:35:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_tx_global_lock_of_net_device [2023-04-03 07:35:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_tx_global_lock_of_net_device [2023-04-03 07:35:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_tx_global_lock_of_net_device [2023-04-03 07:35:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_tx_global_lock_of_net_device [2023-04-03 07:35:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_tx_global_lock_of_net_device [2023-04-03 07:35:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_tx_global_lock_of_net_device [2023-04-03 07:35:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-04-03 07:35:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 07:35:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 07:35:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 07:35:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 07:35:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 07:35:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2023-04-03 07:35:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-03 07:35:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 07:35:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 07:35:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 07:35:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 07:35:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-03 07:35:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-03 07:35:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-03 07:35:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-03 07:35:56,286 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 07:35:56,296 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 07:36:00,333 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint mainFINAL: assume true; [2023-04-03 07:36:00,750 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-03 07:36:03,395 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 07:36:06,933 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 07:36:06,933 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-04-03 07:36:06,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 07:36:06 BoogieIcfgContainer [2023-04-03 07:36:06,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 07:36:06,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 07:36:06,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 07:36:06,945 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 07:36:06,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 07:35:49" (1/3) ... [2023-04-03 07:36:06,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe4cce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 07:36:06, skipping insertion in model container [2023-04-03 07:36:06,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:35:54" (2/3) ... [2023-04-03 07:36:06,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe4cce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 07:36:06, skipping insertion in model container [2023-04-03 07:36:06,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 07:36:06" (3/3) ... [2023-04-03 07:36:06,947 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2023-04-03 07:36:06,963 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 07:36:06,963 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-04-03 07:36:07,065 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 07:36:07,071 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@792a545, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 07:36:07,071 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-04-03 07:36:07,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 3976 states, 2176 states have (on average 1.234375) internal successors, (2686), 2248 states have internal predecessors, (2686), 1258 states have call successors, (1258), 396 states have call predecessors, (1258), 394 states have return successors, (1250), 1223 states have call predecessors, (1250), 1250 states have call successors, (1250) [2023-04-03 07:36:07,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2023-04-03 07:36:07,132 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:36:07,133 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:36:07,134 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:36:07,139 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:36:07,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1870246734, now seen corresponding path program 1 times [2023-04-03 07:36:07,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:36:07,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615407806] [2023-04-03 07:36:07,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:36:07,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:36:07,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:36:08,323 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2023-04-03 07:36:08,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:36:08,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615407806] [2023-04-03 07:36:08,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615407806] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:36:08,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:36:08,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 07:36:08,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296533777] [2023-04-03 07:36:08,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:36:08,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 07:36:08,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:36:08,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 07:36:08,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 07:36:08,378 INFO L87 Difference]: Start difference. First operand has 3976 states, 2176 states have (on average 1.234375) internal successors, (2686), 2248 states have internal predecessors, (2686), 1258 states have call successors, (1258), 396 states have call predecessors, (1258), 394 states have return successors, (1250), 1223 states have call predecessors, (1250), 1250 states have call successors, (1250) Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2023-04-03 07:36:10,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:36:10,812 INFO L93 Difference]: Finished difference Result 10370 states and 14498 transitions. [2023-04-03 07:36:10,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 07:36:10,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 380 [2023-04-03 07:36:10,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:36:10,870 INFO L225 Difference]: With dead ends: 10370 [2023-04-03 07:36:10,871 INFO L226 Difference]: Without dead ends: 6851 [2023-04-03 07:36:10,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 07:36:10,899 INFO L413 NwaCegarLoop]: 4394 mSDtfsCounter, 4545 mSDsluCounter, 4275 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4545 SdHoareTripleChecker+Valid, 8669 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-04-03 07:36:10,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4545 Valid, 8669 Invalid, 953 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-04-03 07:36:10,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6851 states. [2023-04-03 07:36:11,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6851 to 6847. [2023-04-03 07:36:11,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6847 states, 3877 states have (on average 1.2486458602011865) internal successors, (4841), 4019 states have internal predecessors, (4841), 2221 states have call successors, (2221), 749 states have call predecessors, (2221), 746 states have return successors, (2216), 2162 states have call predecessors, (2216), 2216 states have call successors, (2216) [2023-04-03 07:36:11,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6847 states to 6847 states and 9278 transitions. [2023-04-03 07:36:11,403 INFO L78 Accepts]: Start accepts. Automaton has 6847 states and 9278 transitions. Word has length 380 [2023-04-03 07:36:11,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:36:11,409 INFO L495 AbstractCegarLoop]: Abstraction has 6847 states and 9278 transitions. [2023-04-03 07:36:11,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2023-04-03 07:36:11,409 INFO L276 IsEmpty]: Start isEmpty. Operand 6847 states and 9278 transitions. [2023-04-03 07:36:11,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2023-04-03 07:36:11,422 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:36:11,422 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:36:11,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 07:36:11,423 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:36:11,423 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:36:11,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1961206181, now seen corresponding path program 1 times [2023-04-03 07:36:11,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:36:11,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92283215] [2023-04-03 07:36:11,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:36:11,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:36:11,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:36:12,015 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2023-04-03 07:36:12,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:36:12,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92283215] [2023-04-03 07:36:12,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92283215] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:36:12,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:36:12,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 07:36:12,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24516886] [2023-04-03 07:36:12,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:36:12,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 07:36:12,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:36:12,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 07:36:12,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 07:36:12,023 INFO L87 Difference]: Start difference. First operand 6847 states and 9278 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-04-03 07:36:14,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:36:14,486 INFO L93 Difference]: Finished difference Result 16851 states and 22838 transitions. [2023-04-03 07:36:14,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 07:36:14,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 397 [2023-04-03 07:36:14,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:36:14,558 INFO L225 Difference]: With dead ends: 16851 [2023-04-03 07:36:14,558 INFO L226 Difference]: Without dead ends: 10086 [2023-04-03 07:36:14,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 07:36:14,596 INFO L413 NwaCegarLoop]: 4379 mSDtfsCounter, 4524 mSDsluCounter, 4311 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4524 SdHoareTripleChecker+Valid, 8690 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-04-03 07:36:14,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4524 Valid, 8690 Invalid, 972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-04-03 07:36:14,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10086 states. [2023-04-03 07:36:15,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10086 to 10049. [2023-04-03 07:36:15,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10049 states, 5693 states have (on average 1.2476725803618478) internal successors, (7103), 5905 states have internal predecessors, (7103), 3254 states have call successors, (3254), 1102 states have call predecessors, (3254), 1099 states have return successors, (3252), 3167 states have call predecessors, (3252), 3249 states have call successors, (3252) [2023-04-03 07:36:15,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10049 states to 10049 states and 13609 transitions. [2023-04-03 07:36:15,199 INFO L78 Accepts]: Start accepts. Automaton has 10049 states and 13609 transitions. Word has length 397 [2023-04-03 07:36:15,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:36:15,200 INFO L495 AbstractCegarLoop]: Abstraction has 10049 states and 13609 transitions. [2023-04-03 07:36:15,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-04-03 07:36:15,207 INFO L276 IsEmpty]: Start isEmpty. Operand 10049 states and 13609 transitions. [2023-04-03 07:36:15,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2023-04-03 07:36:15,213 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:36:15,214 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:36:15,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 07:36:15,214 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:36:15,215 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:36:15,216 INFO L85 PathProgramCache]: Analyzing trace with hash 105277342, now seen corresponding path program 1 times [2023-04-03 07:36:15,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:36:15,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006671589] [2023-04-03 07:36:15,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:36:15,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:36:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:36:15,774 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2023-04-03 07:36:15,775 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:36:15,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006671589] [2023-04-03 07:36:15,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006671589] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:36:15,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:36:15,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 07:36:15,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655918159] [2023-04-03 07:36:15,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:36:15,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 07:36:15,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:36:15,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 07:36:15,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 07:36:15,777 INFO L87 Difference]: Start difference. First operand 10049 states and 13609 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-04-03 07:36:18,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:36:18,399 INFO L93 Difference]: Finished difference Result 21283 states and 28680 transitions. [2023-04-03 07:36:18,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 07:36:18,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 398 [2023-04-03 07:36:18,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:36:18,475 INFO L225 Difference]: With dead ends: 21283 [2023-04-03 07:36:18,475 INFO L226 Difference]: Without dead ends: 11316 [2023-04-03 07:36:18,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 07:36:18,526 INFO L413 NwaCegarLoop]: 7343 mSDtfsCounter, 4494 mSDsluCounter, 4313 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4494 SdHoareTripleChecker+Valid, 11656 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-04-03 07:36:18,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4494 Valid, 11656 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-04-03 07:36:18,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11316 states. [2023-04-03 07:36:19,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11316 to 11273. [2023-04-03 07:36:19,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11273 states, 6366 states have (on average 1.2436380772855797) internal successors, (7917), 6610 states have internal predecessors, (7917), 3593 states have call successors, (3593), 1314 states have call predecessors, (3593), 1311 states have return successors, (3598), 3485 states have call predecessors, (3598), 3588 states have call successors, (3598) [2023-04-03 07:36:19,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11273 states to 11273 states and 15108 transitions. [2023-04-03 07:36:19,216 INFO L78 Accepts]: Start accepts. Automaton has 11273 states and 15108 transitions. Word has length 398 [2023-04-03 07:36:19,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:36:19,217 INFO L495 AbstractCegarLoop]: Abstraction has 11273 states and 15108 transitions. [2023-04-03 07:36:19,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-04-03 07:36:19,217 INFO L276 IsEmpty]: Start isEmpty. Operand 11273 states and 15108 transitions. [2023-04-03 07:36:19,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2023-04-03 07:36:19,225 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:36:19,226 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:36:19,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 07:36:19,226 INFO L420 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:36:19,228 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:36:19,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1259636806, now seen corresponding path program 1 times [2023-04-03 07:36:19,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:36:19,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269742602] [2023-04-03 07:36:19,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:36:19,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:36:19,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:36:19,967 INFO L134 CoverageAnalysis]: Checked inductivity of 4722 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4711 trivial. 0 not checked. [2023-04-03 07:36:19,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:36:19,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269742602] [2023-04-03 07:36:19,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269742602] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:36:19,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:36:19,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:36:19,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406169240] [2023-04-03 07:36:19,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:36:19,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:36:19,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:36:19,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:36:19,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:36:19,970 INFO L87 Difference]: Start difference. First operand 11273 states and 15108 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (55), 3 states have call predecessors, (55), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2023-04-03 07:36:22,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:36:22,192 INFO L93 Difference]: Finished difference Result 11279 states and 15113 transitions. [2023-04-03 07:36:22,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:36:22,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (55), 3 states have call predecessors, (55), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 441 [2023-04-03 07:36:22,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:36:22,259 INFO L225 Difference]: With dead ends: 11279 [2023-04-03 07:36:22,260 INFO L226 Difference]: Without dead ends: 11277 [2023-04-03 07:36:22,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:36:22,270 INFO L413 NwaCegarLoop]: 4365 mSDtfsCounter, 4789 mSDsluCounter, 8712 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4806 SdHoareTripleChecker+Valid, 13077 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-03 07:36:22,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4806 Valid, 13077 Invalid, 1391 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-03 07:36:22,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11277 states. [2023-04-03 07:36:22,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11277 to 11277. [2023-04-03 07:36:22,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11277 states, 6369 states have (on average 1.2435233160621761) internal successors, (7920), 6613 states have internal predecessors, (7920), 3593 states have call successors, (3593), 1315 states have call predecessors, (3593), 1312 states have return successors, (3598), 3485 states have call predecessors, (3598), 3588 states have call successors, (3598) [2023-04-03 07:36:23,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11277 states to 11277 states and 15111 transitions. [2023-04-03 07:36:23,004 INFO L78 Accepts]: Start accepts. Automaton has 11277 states and 15111 transitions. Word has length 441 [2023-04-03 07:36:23,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:36:23,006 INFO L495 AbstractCegarLoop]: Abstraction has 11277 states and 15111 transitions. [2023-04-03 07:36:23,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (55), 3 states have call predecessors, (55), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2023-04-03 07:36:23,006 INFO L276 IsEmpty]: Start isEmpty. Operand 11277 states and 15111 transitions. [2023-04-03 07:36:23,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2023-04-03 07:36:23,015 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:36:23,015 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:36:23,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 07:36:23,016 INFO L420 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:36:23,016 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:36:23,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1945709727, now seen corresponding path program 1 times [2023-04-03 07:36:23,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:36:23,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637811050] [2023-04-03 07:36:23,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:36:23,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:36:23,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:36:23,762 INFO L134 CoverageAnalysis]: Checked inductivity of 4724 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 4711 trivial. 0 not checked. [2023-04-03 07:36:23,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:36:23,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637811050] [2023-04-03 07:36:23,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637811050] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:36:23,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:36:23,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:36:23,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942981559] [2023-04-03 07:36:23,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:36:23,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:36:23,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:36:23,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:36:23,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:36:23,765 INFO L87 Difference]: Start difference. First operand 11277 states and 15111 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (56), 3 states have call predecessors, (56), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2023-04-03 07:36:26,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:36:26,396 INFO L93 Difference]: Finished difference Result 11283 states and 15116 transitions. [2023-04-03 07:36:26,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:36:26,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (56), 3 states have call predecessors, (56), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 446 [2023-04-03 07:36:26,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:36:26,463 INFO L225 Difference]: With dead ends: 11283 [2023-04-03 07:36:26,463 INFO L226 Difference]: Without dead ends: 11281 [2023-04-03 07:36:26,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:36:26,474 INFO L413 NwaCegarLoop]: 4368 mSDtfsCounter, 4784 mSDsluCounter, 8712 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4800 SdHoareTripleChecker+Valid, 13080 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-04-03 07:36:26,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4800 Valid, 13080 Invalid, 1391 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-04-03 07:36:26,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11281 states. [2023-04-03 07:36:27,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11281 to 11281. [2023-04-03 07:36:27,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11281 states, 6372 states have (on average 1.2434086629001884) internal successors, (7923), 6616 states have internal predecessors, (7923), 3593 states have call successors, (3593), 1316 states have call predecessors, (3593), 1313 states have return successors, (3598), 3485 states have call predecessors, (3598), 3588 states have call successors, (3598) [2023-04-03 07:36:27,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11281 states to 11281 states and 15114 transitions. [2023-04-03 07:36:27,164 INFO L78 Accepts]: Start accepts. Automaton has 11281 states and 15114 transitions. Word has length 446 [2023-04-03 07:36:27,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:36:27,166 INFO L495 AbstractCegarLoop]: Abstraction has 11281 states and 15114 transitions. [2023-04-03 07:36:27,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (56), 3 states have call predecessors, (56), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2023-04-03 07:36:27,166 INFO L276 IsEmpty]: Start isEmpty. Operand 11281 states and 15114 transitions. [2023-04-03 07:36:27,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2023-04-03 07:36:27,175 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:36:27,175 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:36:27,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 07:36:27,176 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:36:27,176 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:36:27,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1006328038, now seen corresponding path program 1 times [2023-04-03 07:36:27,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:36:27,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888078172] [2023-04-03 07:36:27,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:36:27,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:36:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:36:27,914 INFO L134 CoverageAnalysis]: Checked inductivity of 4730 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4715 trivial. 0 not checked. [2023-04-03 07:36:27,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:36:27,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888078172] [2023-04-03 07:36:27,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888078172] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:36:27,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:36:27,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:36:27,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993935317] [2023-04-03 07:36:27,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:36:27,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:36:27,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:36:27,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:36:27,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:36:27,917 INFO L87 Difference]: Start difference. First operand 11281 states and 15114 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (57), 3 states have call predecessors, (57), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2023-04-03 07:36:30,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:36:30,431 INFO L93 Difference]: Finished difference Result 11287 states and 15119 transitions. [2023-04-03 07:36:30,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:36:30,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (57), 3 states have call predecessors, (57), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 451 [2023-04-03 07:36:30,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:36:30,480 INFO L225 Difference]: With dead ends: 11287 [2023-04-03 07:36:30,481 INFO L226 Difference]: Without dead ends: 11285 [2023-04-03 07:36:30,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:36:30,489 INFO L413 NwaCegarLoop]: 4368 mSDtfsCounter, 4784 mSDsluCounter, 8712 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4799 SdHoareTripleChecker+Valid, 13080 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-04-03 07:36:30,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4799 Valid, 13080 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-04-03 07:36:30,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11285 states. [2023-04-03 07:36:31,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11285 to 11285. [2023-04-03 07:36:31,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11285 states, 6375 states have (on average 1.2432941176470589) internal successors, (7926), 6619 states have internal predecessors, (7926), 3593 states have call successors, (3593), 1317 states have call predecessors, (3593), 1314 states have return successors, (3598), 3485 states have call predecessors, (3598), 3588 states have call successors, (3598) [2023-04-03 07:36:31,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11285 states to 11285 states and 15117 transitions. [2023-04-03 07:36:31,168 INFO L78 Accepts]: Start accepts. Automaton has 11285 states and 15117 transitions. Word has length 451 [2023-04-03 07:36:31,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:36:31,169 INFO L495 AbstractCegarLoop]: Abstraction has 11285 states and 15117 transitions. [2023-04-03 07:36:31,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (57), 3 states have call predecessors, (57), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2023-04-03 07:36:31,169 INFO L276 IsEmpty]: Start isEmpty. Operand 11285 states and 15117 transitions. [2023-04-03 07:36:31,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2023-04-03 07:36:31,179 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:36:31,179 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:36:31,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 07:36:31,179 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:36:31,180 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:36:31,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1008965185, now seen corresponding path program 1 times [2023-04-03 07:36:31,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:36:31,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387512206] [2023-04-03 07:36:31,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:36:31,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:36:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:36:31,893 INFO L134 CoverageAnalysis]: Checked inductivity of 4740 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4723 trivial. 0 not checked. [2023-04-03 07:36:31,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:36:31,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387512206] [2023-04-03 07:36:31,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387512206] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:36:31,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:36:31,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:36:31,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56444904] [2023-04-03 07:36:31,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:36:31,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:36:31,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:36:31,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:36:31,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:36:31,896 INFO L87 Difference]: Start difference. First operand 11285 states and 15117 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (58), 3 states have call predecessors, (58), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2023-04-03 07:36:34,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:36:34,732 INFO L93 Difference]: Finished difference Result 13707 states and 18385 transitions. [2023-04-03 07:36:34,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:36:34,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (58), 3 states have call predecessors, (58), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 456 [2023-04-03 07:36:34,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:36:34,807 INFO L225 Difference]: With dead ends: 13707 [2023-04-03 07:36:34,808 INFO L226 Difference]: Without dead ends: 13705 [2023-04-03 07:36:34,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:36:34,821 INFO L413 NwaCegarLoop]: 4750 mSDtfsCounter, 4541 mSDsluCounter, 10645 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4555 SdHoareTripleChecker+Valid, 15395 SdHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-04-03 07:36:34,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4555 Valid, 15395 Invalid, 1657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1655 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-04-03 07:36:34,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13705 states. [2023-04-03 07:36:35,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13705 to 13695. [2023-04-03 07:36:35,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13695 states, 7692 states have (on average 1.2441497659906395) internal successors, (9570), 8032 states have internal predecessors, (9570), 4355 states have call successors, (4355), 1669 states have call predecessors, (4355), 1645 states have return successors, (4450), 4160 states have call predecessors, (4450), 4350 states have call successors, (4450) [2023-04-03 07:36:35,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13695 states to 13695 states and 18375 transitions. [2023-04-03 07:36:35,635 INFO L78 Accepts]: Start accepts. Automaton has 13695 states and 18375 transitions. Word has length 456 [2023-04-03 07:36:35,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:36:35,635 INFO L495 AbstractCegarLoop]: Abstraction has 13695 states and 18375 transitions. [2023-04-03 07:36:35,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (58), 3 states have call predecessors, (58), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2023-04-03 07:36:35,636 INFO L276 IsEmpty]: Start isEmpty. Operand 13695 states and 18375 transitions. [2023-04-03 07:36:35,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2023-04-03 07:36:35,642 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:36:35,642 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:36:35,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 07:36:35,642 INFO L420 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:36:35,643 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:36:35,643 INFO L85 PathProgramCache]: Analyzing trace with hash -939552378, now seen corresponding path program 1 times [2023-04-03 07:36:35,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:36:35,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697602743] [2023-04-03 07:36:35,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:36:35,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:36:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:36:36,430 INFO L134 CoverageAnalysis]: Checked inductivity of 4754 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 4735 trivial. 0 not checked. [2023-04-03 07:36:36,431 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:36:36,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697602743] [2023-04-03 07:36:36,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697602743] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:36:36,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:36:36,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:36:36,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595000857] [2023-04-03 07:36:36,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:36:36,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:36:36,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:36:36,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:36:36,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:36:36,433 INFO L87 Difference]: Start difference. First operand 13695 states and 18375 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (59), 3 states have call predecessors, (59), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2023-04-03 07:36:38,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:36:38,546 INFO L93 Difference]: Finished difference Result 13760 states and 18429 transitions. [2023-04-03 07:36:38,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:36:38,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (59), 3 states have call predecessors, (59), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 461 [2023-04-03 07:36:38,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:36:38,612 INFO L225 Difference]: With dead ends: 13760 [2023-04-03 07:36:38,613 INFO L226 Difference]: Without dead ends: 13758 [2023-04-03 07:36:38,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:36:38,624 INFO L413 NwaCegarLoop]: 4368 mSDtfsCounter, 4761 mSDsluCounter, 8745 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4774 SdHoareTripleChecker+Valid, 13113 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-03 07:36:38,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4774 Valid, 13113 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-03 07:36:38,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13758 states. [2023-04-03 07:36:39,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13758 to 13756. [2023-04-03 07:36:39,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13756 states, 7728 states have (on average 1.2434006211180124) internal successors, (9609), 8068 states have internal predecessors, (9609), 4361 states have call successors, (4361), 1688 states have call predecessors, (4361), 1664 states have return successors, (4456), 4166 states have call predecessors, (4456), 4356 states have call successors, (4456) [2023-04-03 07:36:39,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13756 states to 13756 states and 18426 transitions. [2023-04-03 07:36:39,417 INFO L78 Accepts]: Start accepts. Automaton has 13756 states and 18426 transitions. Word has length 461 [2023-04-03 07:36:39,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:36:39,418 INFO L495 AbstractCegarLoop]: Abstraction has 13756 states and 18426 transitions. [2023-04-03 07:36:39,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (59), 3 states have call predecessors, (59), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2023-04-03 07:36:39,418 INFO L276 IsEmpty]: Start isEmpty. Operand 13756 states and 18426 transitions. [2023-04-03 07:36:39,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2023-04-03 07:36:39,425 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:36:39,425 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:36:39,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-03 07:36:39,425 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:36:39,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:36:39,426 INFO L85 PathProgramCache]: Analyzing trace with hash 860090657, now seen corresponding path program 1 times [2023-04-03 07:36:39,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:36:39,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518929325] [2023-04-03 07:36:39,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:36:39,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:36:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:36:40,016 INFO L134 CoverageAnalysis]: Checked inductivity of 4772 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 4751 trivial. 0 not checked. [2023-04-03 07:36:40,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:36:40,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518929325] [2023-04-03 07:36:40,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518929325] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:36:40,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:36:40,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:36:40,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207207533] [2023-04-03 07:36:40,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:36:40,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:36:40,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:36:40,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:36:40,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:36:40,019 INFO L87 Difference]: Start difference. First operand 13756 states and 18426 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (60), 3 states have call predecessors, (60), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2023-04-03 07:36:42,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:36:42,220 INFO L93 Difference]: Finished difference Result 13762 states and 18431 transitions. [2023-04-03 07:36:42,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:36:42,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (60), 3 states have call predecessors, (60), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 466 [2023-04-03 07:36:42,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:36:42,272 INFO L225 Difference]: With dead ends: 13762 [2023-04-03 07:36:42,272 INFO L226 Difference]: Without dead ends: 13760 [2023-04-03 07:36:42,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:36:42,283 INFO L413 NwaCegarLoop]: 4368 mSDtfsCounter, 4784 mSDsluCounter, 8712 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4796 SdHoareTripleChecker+Valid, 13080 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-03 07:36:42,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4796 Valid, 13080 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-03 07:36:42,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13760 states. [2023-04-03 07:36:42,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13760 to 13760. [2023-04-03 07:36:42,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13760 states, 7731 states have (on average 1.2433061699650756) internal successors, (9612), 8071 states have internal predecessors, (9612), 4361 states have call successors, (4361), 1689 states have call predecessors, (4361), 1665 states have return successors, (4456), 4166 states have call predecessors, (4456), 4356 states have call successors, (4456) [2023-04-03 07:36:42,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13760 states to 13760 states and 18429 transitions. [2023-04-03 07:36:42,982 INFO L78 Accepts]: Start accepts. Automaton has 13760 states and 18429 transitions. Word has length 466 [2023-04-03 07:36:42,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:36:42,983 INFO L495 AbstractCegarLoop]: Abstraction has 13760 states and 18429 transitions. [2023-04-03 07:36:42,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (60), 3 states have call predecessors, (60), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2023-04-03 07:36:42,983 INFO L276 IsEmpty]: Start isEmpty. Operand 13760 states and 18429 transitions. [2023-04-03 07:36:42,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2023-04-03 07:36:42,990 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:36:42,990 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 7, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:36:42,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-03 07:36:42,991 INFO L420 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:36:42,991 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:36:42,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1467953702, now seen corresponding path program 1 times [2023-04-03 07:36:42,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:36:42,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672371568] [2023-04-03 07:36:42,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:36:42,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:36:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:36:43,661 INFO L134 CoverageAnalysis]: Checked inductivity of 4794 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 4771 trivial. 0 not checked. [2023-04-03 07:36:43,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:36:43,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672371568] [2023-04-03 07:36:43,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672371568] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:36:43,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:36:43,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:36:43,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747111042] [2023-04-03 07:36:43,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:36:43,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:36:43,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:36:43,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:36:43,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:36:43,663 INFO L87 Difference]: Start difference. First operand 13760 states and 18429 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (61), 3 states have call predecessors, (61), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2023-04-03 07:36:45,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:36:45,562 INFO L93 Difference]: Finished difference Result 13766 states and 18434 transitions. [2023-04-03 07:36:45,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:36:45,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (61), 3 states have call predecessors, (61), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 471 [2023-04-03 07:36:45,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:36:45,615 INFO L225 Difference]: With dead ends: 13766 [2023-04-03 07:36:45,615 INFO L226 Difference]: Without dead ends: 13764 [2023-04-03 07:36:45,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:36:45,627 INFO L413 NwaCegarLoop]: 4368 mSDtfsCounter, 4784 mSDsluCounter, 8712 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4795 SdHoareTripleChecker+Valid, 13080 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-03 07:36:45,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4795 Valid, 13080 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-03 07:36:45,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13764 states. [2023-04-03 07:36:46,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13764 to 13764. [2023-04-03 07:36:46,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13764 states, 7734 states have (on average 1.243211792086889) internal successors, (9615), 8074 states have internal predecessors, (9615), 4361 states have call successors, (4361), 1690 states have call predecessors, (4361), 1666 states have return successors, (4456), 4166 states have call predecessors, (4456), 4356 states have call successors, (4456) [2023-04-03 07:36:46,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13764 states to 13764 states and 18432 transitions. [2023-04-03 07:36:46,436 INFO L78 Accepts]: Start accepts. Automaton has 13764 states and 18432 transitions. Word has length 471 [2023-04-03 07:36:46,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:36:46,437 INFO L495 AbstractCegarLoop]: Abstraction has 13764 states and 18432 transitions. [2023-04-03 07:36:46,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (61), 3 states have call predecessors, (61), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2023-04-03 07:36:46,437 INFO L276 IsEmpty]: Start isEmpty. Operand 13764 states and 18432 transitions. [2023-04-03 07:36:46,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2023-04-03 07:36:46,444 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:36:46,444 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 8, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:36:46,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-03 07:36:46,445 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:36:46,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:36:46,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1815485439, now seen corresponding path program 1 times [2023-04-03 07:36:46,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:36:46,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980344268] [2023-04-03 07:36:46,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:36:46,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:36:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:36:47,200 INFO L134 CoverageAnalysis]: Checked inductivity of 4820 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 4795 trivial. 0 not checked. [2023-04-03 07:36:47,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:36:47,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980344268] [2023-04-03 07:36:47,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980344268] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:36:47,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:36:47,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:36:47,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204704787] [2023-04-03 07:36:47,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:36:47,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:36:47,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:36:47,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:36:47,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:36:47,203 INFO L87 Difference]: Start difference. First operand 13764 states and 18432 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (62), 3 states have call predecessors, (62), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2023-04-03 07:36:49,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:36:49,275 INFO L93 Difference]: Finished difference Result 13904 states and 18531 transitions. [2023-04-03 07:36:49,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:36:49,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (62), 3 states have call predecessors, (62), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 476 [2023-04-03 07:36:49,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:36:49,323 INFO L225 Difference]: With dead ends: 13904 [2023-04-03 07:36:49,323 INFO L226 Difference]: Without dead ends: 13902 [2023-04-03 07:36:49,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:36:49,334 INFO L413 NwaCegarLoop]: 4371 mSDtfsCounter, 4598 mSDsluCounter, 8897 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4608 SdHoareTripleChecker+Valid, 13268 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-03 07:36:49,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4608 Valid, 13268 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-03 07:36:49,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13902 states. [2023-04-03 07:36:50,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13902 to 13900. [2023-04-03 07:36:50,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13900 states, 7812 states have (on average 1.2415514592933947) internal successors, (9699), 8152 states have internal predecessors, (9699), 4367 states have call successors, (4367), 1742 states have call predecessors, (4367), 1718 states have return successors, (4462), 4172 states have call predecessors, (4462), 4362 states have call successors, (4462) [2023-04-03 07:36:50,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13900 states to 13900 states and 18528 transitions. [2023-04-03 07:36:50,166 INFO L78 Accepts]: Start accepts. Automaton has 13900 states and 18528 transitions. Word has length 476 [2023-04-03 07:36:50,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:36:50,167 INFO L495 AbstractCegarLoop]: Abstraction has 13900 states and 18528 transitions. [2023-04-03 07:36:50,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (62), 3 states have call predecessors, (62), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2023-04-03 07:36:50,167 INFO L276 IsEmpty]: Start isEmpty. Operand 13900 states and 18528 transitions. [2023-04-03 07:36:50,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2023-04-03 07:36:50,175 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:36:50,175 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 9, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:36:50,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-03 07:36:50,176 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:36:50,176 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:36:50,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1601136125, now seen corresponding path program 1 times [2023-04-03 07:36:50,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:36:50,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704538008] [2023-04-03 07:36:50,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:36:50,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:36:50,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:36:50,763 INFO L134 CoverageAnalysis]: Checked inductivity of 4853 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 4834 trivial. 0 not checked. [2023-04-03 07:36:50,763 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:36:50,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704538008] [2023-04-03 07:36:50,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704538008] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:36:50,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:36:50,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:36:50,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995465403] [2023-04-03 07:36:50,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:36:50,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:36:50,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:36:50,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:36:50,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:36:50,765 INFO L87 Difference]: Start difference. First operand 13900 states and 18528 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (74), 3 states have call predecessors, (74), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2023-04-03 07:36:52,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:36:52,720 INFO L93 Difference]: Finished difference Result 13906 states and 18533 transitions. [2023-04-03 07:36:52,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:36:52,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (74), 3 states have call predecessors, (74), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 514 [2023-04-03 07:36:52,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:36:52,773 INFO L225 Difference]: With dead ends: 13906 [2023-04-03 07:36:52,774 INFO L226 Difference]: Without dead ends: 13904 [2023-04-03 07:36:52,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:36:52,784 INFO L413 NwaCegarLoop]: 4368 mSDtfsCounter, 4791 mSDsluCounter, 8712 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4800 SdHoareTripleChecker+Valid, 13080 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-03 07:36:52,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4800 Valid, 13080 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-03 07:36:52,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13904 states. [2023-04-03 07:36:53,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13904 to 13904. [2023-04-03 07:36:53,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13904 states, 7815 states have (on average 1.2414587332053744) internal successors, (9702), 8155 states have internal predecessors, (9702), 4367 states have call successors, (4367), 1743 states have call predecessors, (4367), 1719 states have return successors, (4462), 4172 states have call predecessors, (4462), 4362 states have call successors, (4462) [2023-04-03 07:36:53,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13904 states to 13904 states and 18531 transitions. [2023-04-03 07:36:53,641 INFO L78 Accepts]: Start accepts. Automaton has 13904 states and 18531 transitions. Word has length 514 [2023-04-03 07:36:53,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:36:53,642 INFO L495 AbstractCegarLoop]: Abstraction has 13904 states and 18531 transitions. [2023-04-03 07:36:53,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (74), 3 states have call predecessors, (74), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2023-04-03 07:36:53,642 INFO L276 IsEmpty]: Start isEmpty. Operand 13904 states and 18531 transitions. [2023-04-03 07:36:53,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2023-04-03 07:36:53,649 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:36:53,649 INFO L195 NwaCegarLoop]: trace histogram [38, 34, 34, 34, 34, 34, 34, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:36:53,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-03 07:36:53,650 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:36:53,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:36:53,650 INFO L85 PathProgramCache]: Analyzing trace with hash 2135324208, now seen corresponding path program 1 times [2023-04-03 07:36:53,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:36:53,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815646817] [2023-04-03 07:36:53,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:36:53,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:36:53,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:36:54,062 INFO L134 CoverageAnalysis]: Checked inductivity of 4803 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4795 trivial. 0 not checked. [2023-04-03 07:36:54,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:36:54,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815646817] [2023-04-03 07:36:54,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815646817] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:36:54,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:36:54,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 07:36:54,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954917719] [2023-04-03 07:36:54,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:36:54,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 07:36:54,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:36:54,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 07:36:54,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 07:36:54,065 INFO L87 Difference]: Start difference. First operand 13904 states and 18531 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (65), 3 states have call predecessors, (65), 2 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2023-04-03 07:36:56,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:36:56,271 INFO L93 Difference]: Finished difference Result 32175 states and 42890 transitions. [2023-04-03 07:36:56,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 07:36:56,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (65), 3 states have call predecessors, (65), 2 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 488 [2023-04-03 07:36:56,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:36:56,337 INFO L225 Difference]: With dead ends: 32175 [2023-04-03 07:36:56,337 INFO L226 Difference]: Without dead ends: 18788 [2023-04-03 07:36:56,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 07:36:56,392 INFO L413 NwaCegarLoop]: 5070 mSDtfsCounter, 4513 mSDsluCounter, 4313 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4513 SdHoareTripleChecker+Valid, 9383 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-03 07:36:56,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4513 Valid, 9383 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-03 07:36:56,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18788 states. [2023-04-03 07:36:57,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18788 to 18715. [2023-04-03 07:36:57,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18715 states, 10515 states have (on average 1.2414645744174988) internal successors, (13054), 10973 states have internal predecessors, (13054), 5868 states have call successors, (5868), 2362 states have call predecessors, (5868), 2329 states have return successors, (5998), 5604 states have call predecessors, (5998), 5863 states have call successors, (5998) [2023-04-03 07:36:57,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18715 states to 18715 states and 24920 transitions. [2023-04-03 07:36:57,514 INFO L78 Accepts]: Start accepts. Automaton has 18715 states and 24920 transitions. Word has length 488 [2023-04-03 07:36:57,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:36:57,515 INFO L495 AbstractCegarLoop]: Abstraction has 18715 states and 24920 transitions. [2023-04-03 07:36:57,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (65), 3 states have call predecessors, (65), 2 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2023-04-03 07:36:57,515 INFO L276 IsEmpty]: Start isEmpty. Operand 18715 states and 24920 transitions. [2023-04-03 07:36:57,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2023-04-03 07:36:57,524 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:36:57,524 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 10, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:36:57,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-03 07:36:57,524 INFO L420 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:36:57,525 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:36:57,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1838640865, now seen corresponding path program 1 times [2023-04-03 07:36:57,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:36:57,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128664029] [2023-04-03 07:36:57,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:36:57,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:36:57,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:36:58,098 INFO L134 CoverageAnalysis]: Checked inductivity of 4884 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 4855 trivial. 0 not checked. [2023-04-03 07:36:58,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:36:58,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128664029] [2023-04-03 07:36:58,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128664029] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:36:58,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:36:58,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:36:58,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767309720] [2023-04-03 07:36:58,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:36:58,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:36:58,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:36:58,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:36:58,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:36:58,101 INFO L87 Difference]: Start difference. First operand 18715 states and 24920 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (64), 3 states have call predecessors, (64), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2023-04-03 07:37:00,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:37:00,339 INFO L93 Difference]: Finished difference Result 18721 states and 24925 transitions. [2023-04-03 07:37:00,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:37:00,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (64), 3 states have call predecessors, (64), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 486 [2023-04-03 07:37:00,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:37:00,392 INFO L225 Difference]: With dead ends: 18721 [2023-04-03 07:37:00,392 INFO L226 Difference]: Without dead ends: 18719 [2023-04-03 07:37:00,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:37:00,404 INFO L413 NwaCegarLoop]: 4368 mSDtfsCounter, 4784 mSDsluCounter, 8712 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4792 SdHoareTripleChecker+Valid, 13080 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-03 07:37:00,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4792 Valid, 13080 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-03 07:37:00,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18719 states. [2023-04-03 07:37:01,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18719 to 18719. [2023-04-03 07:37:01,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18719 states, 10518 states have (on average 1.241395702605058) internal successors, (13057), 10976 states have internal predecessors, (13057), 5868 states have call successors, (5868), 2363 states have call predecessors, (5868), 2330 states have return successors, (5998), 5604 states have call predecessors, (5998), 5863 states have call successors, (5998) [2023-04-03 07:37:01,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18719 states to 18719 states and 24923 transitions. [2023-04-03 07:37:01,598 INFO L78 Accepts]: Start accepts. Automaton has 18719 states and 24923 transitions. Word has length 486 [2023-04-03 07:37:01,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:37:01,598 INFO L495 AbstractCegarLoop]: Abstraction has 18719 states and 24923 transitions. [2023-04-03 07:37:01,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (64), 3 states have call predecessors, (64), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2023-04-03 07:37:01,599 INFO L276 IsEmpty]: Start isEmpty. Operand 18719 states and 24923 transitions. [2023-04-03 07:37:01,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2023-04-03 07:37:01,607 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:37:01,607 INFO L195 NwaCegarLoop]: trace histogram [38, 34, 34, 34, 34, 34, 34, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:37:01,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-03 07:37:01,607 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:37:01,608 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:37:01,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1207968883, now seen corresponding path program 1 times [2023-04-03 07:37:01,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:37:01,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591228323] [2023-04-03 07:37:01,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:37:01,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:37:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:37:01,997 INFO L134 CoverageAnalysis]: Checked inductivity of 4803 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4795 trivial. 0 not checked. [2023-04-03 07:37:01,997 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:37:01,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591228323] [2023-04-03 07:37:01,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591228323] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:37:01,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:37:01,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 07:37:01,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093625476] [2023-04-03 07:37:01,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:37:01,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 07:37:01,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:37:01,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 07:37:01,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 07:37:01,999 INFO L87 Difference]: Start difference. First operand 18719 states and 24923 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (65), 3 states have call predecessors, (65), 2 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2023-04-03 07:37:04,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:37:04,677 INFO L93 Difference]: Finished difference Result 42408 states and 56417 transitions. [2023-04-03 07:37:04,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 07:37:04,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (65), 3 states have call predecessors, (65), 2 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 489 [2023-04-03 07:37:04,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:37:04,748 INFO L225 Difference]: With dead ends: 42408 [2023-04-03 07:37:04,749 INFO L226 Difference]: Without dead ends: 24206 [2023-04-03 07:37:04,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 07:37:04,787 INFO L413 NwaCegarLoop]: 5315 mSDtfsCounter, 4484 mSDsluCounter, 4315 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4484 SdHoareTripleChecker+Valid, 9630 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-03 07:37:04,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4484 Valid, 9630 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-03 07:37:04,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24206 states. [2023-04-03 07:37:06,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24206 to 24123. [2023-04-03 07:37:06,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24123 states, 13543 states have (on average 1.2407147603928228) internal successors, (16803), 14133 states have internal predecessors, (16803), 7535 states have call successors, (7535), 3086 states have call predecessors, (7535), 3042 states have return successors, (7702), 7191 states have call predecessors, (7702), 7530 states have call successors, (7702) [2023-04-03 07:37:06,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24123 states to 24123 states and 32040 transitions. [2023-04-03 07:37:06,473 INFO L78 Accepts]: Start accepts. Automaton has 24123 states and 32040 transitions. Word has length 489 [2023-04-03 07:37:06,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:37:06,474 INFO L495 AbstractCegarLoop]: Abstraction has 24123 states and 32040 transitions. [2023-04-03 07:37:06,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (65), 3 states have call predecessors, (65), 2 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2023-04-03 07:37:06,474 INFO L276 IsEmpty]: Start isEmpty. Operand 24123 states and 32040 transitions. [2023-04-03 07:37:06,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2023-04-03 07:37:06,481 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:37:06,481 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 11, 10, 10, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:37:06,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-03 07:37:06,481 INFO L420 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:37:06,481 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:37:06,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1930108317, now seen corresponding path program 1 times [2023-04-03 07:37:06,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:37:06,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936586564] [2023-04-03 07:37:06,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:37:06,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:37:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:37:07,059 INFO L134 CoverageAnalysis]: Checked inductivity of 4925 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 4902 trivial. 0 not checked. [2023-04-03 07:37:07,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:37:07,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936586564] [2023-04-03 07:37:07,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936586564] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:37:07,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:37:07,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:37:07,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316035381] [2023-04-03 07:37:07,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:37:07,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:37:07,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:37:07,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:37:07,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:37:07,064 INFO L87 Difference]: Start difference. First operand 24123 states and 32040 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (76), 3 states have call predecessors, (76), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2023-04-03 07:37:09,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:37:09,592 INFO L93 Difference]: Finished difference Result 24129 states and 32045 transitions. [2023-04-03 07:37:09,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:37:09,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (76), 3 states have call predecessors, (76), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 524 [2023-04-03 07:37:09,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:37:09,657 INFO L225 Difference]: With dead ends: 24129 [2023-04-03 07:37:09,657 INFO L226 Difference]: Without dead ends: 24127 [2023-04-03 07:37:09,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:37:09,668 INFO L413 NwaCegarLoop]: 4368 mSDtfsCounter, 4791 mSDsluCounter, 8712 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4798 SdHoareTripleChecker+Valid, 13080 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-03 07:37:09,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4798 Valid, 13080 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-03 07:37:09,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24127 states. [2023-04-03 07:37:11,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24127 to 24127. [2023-04-03 07:37:11,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24127 states, 13546 states have (on average 1.2406614498745017) internal successors, (16806), 14136 states have internal predecessors, (16806), 7535 states have call successors, (7535), 3087 states have call predecessors, (7535), 3043 states have return successors, (7702), 7191 states have call predecessors, (7702), 7530 states have call successors, (7702) [2023-04-03 07:37:11,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24127 states to 24127 states and 32043 transitions. [2023-04-03 07:37:11,420 INFO L78 Accepts]: Start accepts. Automaton has 24127 states and 32043 transitions. Word has length 524 [2023-04-03 07:37:11,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:37:11,421 INFO L495 AbstractCegarLoop]: Abstraction has 24127 states and 32043 transitions. [2023-04-03 07:37:11,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (76), 3 states have call predecessors, (76), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2023-04-03 07:37:11,421 INFO L276 IsEmpty]: Start isEmpty. Operand 24127 states and 32043 transitions. [2023-04-03 07:37:11,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2023-04-03 07:37:11,428 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:37:11,428 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 12, 11, 11, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:37:11,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-03 07:37:11,428 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:37:11,429 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:37:11,429 INFO L85 PathProgramCache]: Analyzing trace with hash 2075768355, now seen corresponding path program 1 times [2023-04-03 07:37:11,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:37:11,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852602679] [2023-04-03 07:37:11,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:37:11,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:37:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:37:11,908 INFO L134 CoverageAnalysis]: Checked inductivity of 4966 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 4942 trivial. 0 not checked. [2023-04-03 07:37:11,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:37:11,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852602679] [2023-04-03 07:37:11,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852602679] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:37:11,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:37:11,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:37:11,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434539410] [2023-04-03 07:37:11,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:37:11,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:37:11,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:37:11,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:37:11,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:37:11,912 INFO L87 Difference]: Start difference. First operand 24127 states and 32043 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (77), 3 states have call predecessors, (77), 2 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) [2023-04-03 07:37:14,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:37:14,806 INFO L93 Difference]: Finished difference Result 24133 states and 32048 transitions. [2023-04-03 07:37:14,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:37:14,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (77), 3 states have call predecessors, (77), 2 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) Word has length 528 [2023-04-03 07:37:14,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:37:14,986 INFO L225 Difference]: With dead ends: 24133 [2023-04-03 07:37:14,986 INFO L226 Difference]: Without dead ends: 24131 [2023-04-03 07:37:14,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:37:14,997 INFO L413 NwaCegarLoop]: 4368 mSDtfsCounter, 4792 mSDsluCounter, 8712 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4798 SdHoareTripleChecker+Valid, 13080 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-03 07:37:14,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4798 Valid, 13080 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-03 07:37:15,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24131 states. [2023-04-03 07:37:16,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24131 to 24131. [2023-04-03 07:37:16,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24131 states, 13549 states have (on average 1.2406081629640564) internal successors, (16809), 14139 states have internal predecessors, (16809), 7535 states have call successors, (7535), 3088 states have call predecessors, (7535), 3044 states have return successors, (7702), 7191 states have call predecessors, (7702), 7530 states have call successors, (7702) [2023-04-03 07:37:16,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24131 states to 24131 states and 32046 transitions. [2023-04-03 07:37:16,649 INFO L78 Accepts]: Start accepts. Automaton has 24131 states and 32046 transitions. Word has length 528 [2023-04-03 07:37:16,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:37:16,650 INFO L495 AbstractCegarLoop]: Abstraction has 24131 states and 32046 transitions. [2023-04-03 07:37:16,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (77), 3 states have call predecessors, (77), 2 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) [2023-04-03 07:37:16,650 INFO L276 IsEmpty]: Start isEmpty. Operand 24131 states and 32046 transitions. [2023-04-03 07:37:16,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2023-04-03 07:37:16,659 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:37:16,660 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 13, 12, 12, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:37:16,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-04-03 07:37:16,660 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:37:16,660 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:37:16,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1764498749, now seen corresponding path program 1 times [2023-04-03 07:37:16,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:37:16,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169711078] [2023-04-03 07:37:16,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:37:16,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:37:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:37:17,112 INFO L134 CoverageAnalysis]: Checked inductivity of 5013 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 4986 trivial. 0 not checked. [2023-04-03 07:37:17,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:37:17,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169711078] [2023-04-03 07:37:17,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169711078] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:37:17,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:37:17,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:37:17,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463813209] [2023-04-03 07:37:17,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:37:17,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:37:17,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:37:17,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:37:17,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:37:17,116 INFO L87 Difference]: Start difference. First operand 24131 states and 32046 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (78), 3 states have call predecessors, (78), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2023-04-03 07:37:20,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:37:20,181 INFO L93 Difference]: Finished difference Result 24137 states and 32051 transitions. [2023-04-03 07:37:20,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:37:20,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (78), 3 states have call predecessors, (78), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) Word has length 534 [2023-04-03 07:37:20,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:37:20,245 INFO L225 Difference]: With dead ends: 24137 [2023-04-03 07:37:20,246 INFO L226 Difference]: Without dead ends: 24135 [2023-04-03 07:37:20,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:37:20,258 INFO L413 NwaCegarLoop]: 4368 mSDtfsCounter, 4791 mSDsluCounter, 8712 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4796 SdHoareTripleChecker+Valid, 13080 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-03 07:37:20,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4796 Valid, 13080 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-03 07:37:20,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24135 states. [2023-04-03 07:37:22,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24135 to 24135. [2023-04-03 07:37:22,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24135 states, 13552 states have (on average 1.2405548996458087) internal successors, (16812), 14142 states have internal predecessors, (16812), 7535 states have call successors, (7535), 3089 states have call predecessors, (7535), 3045 states have return successors, (7702), 7191 states have call predecessors, (7702), 7530 states have call successors, (7702) [2023-04-03 07:37:22,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24135 states to 24135 states and 32049 transitions. [2023-04-03 07:37:22,258 INFO L78 Accepts]: Start accepts. Automaton has 24135 states and 32049 transitions. Word has length 534 [2023-04-03 07:37:22,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:37:22,258 INFO L495 AbstractCegarLoop]: Abstraction has 24135 states and 32049 transitions. [2023-04-03 07:37:22,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (78), 3 states have call predecessors, (78), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2023-04-03 07:37:22,258 INFO L276 IsEmpty]: Start isEmpty. Operand 24135 states and 32049 transitions. [2023-04-03 07:37:22,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2023-04-03 07:37:22,268 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:37:22,268 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 14, 13, 13, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:37:22,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-04-03 07:37:22,268 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:37:22,268 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:37:22,269 INFO L85 PathProgramCache]: Analyzing trace with hash 712678404, now seen corresponding path program 1 times [2023-04-03 07:37:22,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:37:22,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501412903] [2023-04-03 07:37:22,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:37:22,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:37:22,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:37:22,777 INFO L134 CoverageAnalysis]: Checked inductivity of 5063 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 5034 trivial. 0 not checked. [2023-04-03 07:37:22,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:37:22,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501412903] [2023-04-03 07:37:22,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501412903] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:37:22,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:37:22,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:37:22,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746524503] [2023-04-03 07:37:22,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:37:22,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:37:22,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:37:22,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:37:22,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:37:22,780 INFO L87 Difference]: Start difference. First operand 24135 states and 32049 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (79), 3 states have call predecessors, (79), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2023-04-03 07:37:25,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:37:25,769 INFO L93 Difference]: Finished difference Result 24141 states and 32054 transitions. [2023-04-03 07:37:25,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:37:25,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (79), 3 states have call predecessors, (79), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) Word has length 539 [2023-04-03 07:37:25,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:37:25,826 INFO L225 Difference]: With dead ends: 24141 [2023-04-03 07:37:25,826 INFO L226 Difference]: Without dead ends: 24139 [2023-04-03 07:37:25,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:37:25,834 INFO L413 NwaCegarLoop]: 4368 mSDtfsCounter, 4791 mSDsluCounter, 8712 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4795 SdHoareTripleChecker+Valid, 13080 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-03 07:37:25,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4795 Valid, 13080 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-03 07:37:25,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24139 states. [2023-04-03 07:37:27,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24139 to 24139. [2023-04-03 07:37:27,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24139 states, 13555 states have (on average 1.2405016599040943) internal successors, (16815), 14145 states have internal predecessors, (16815), 7535 states have call successors, (7535), 3090 states have call predecessors, (7535), 3046 states have return successors, (7702), 7191 states have call predecessors, (7702), 7530 states have call successors, (7702) [2023-04-03 07:37:27,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24139 states to 24139 states and 32052 transitions. [2023-04-03 07:37:27,719 INFO L78 Accepts]: Start accepts. Automaton has 24139 states and 32052 transitions. Word has length 539 [2023-04-03 07:37:27,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:37:27,719 INFO L495 AbstractCegarLoop]: Abstraction has 24139 states and 32052 transitions. [2023-04-03 07:37:27,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (79), 3 states have call predecessors, (79), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2023-04-03 07:37:27,720 INFO L276 IsEmpty]: Start isEmpty. Operand 24139 states and 32052 transitions. [2023-04-03 07:37:27,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2023-04-03 07:37:27,729 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:37:27,729 INFO L195 NwaCegarLoop]: trace histogram [40, 34, 34, 34, 34, 34, 34, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:37:27,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-04-03 07:37:27,729 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:37:27,730 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:37:27,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1673702686, now seen corresponding path program 1 times [2023-04-03 07:37:27,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:37:27,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810686720] [2023-04-03 07:37:27,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:37:27,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:37:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:37:28,711 INFO L134 CoverageAnalysis]: Checked inductivity of 4975 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4970 trivial. 0 not checked. [2023-04-03 07:37:28,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:37:28,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810686720] [2023-04-03 07:37:28,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810686720] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 07:37:28,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706944103] [2023-04-03 07:37:28,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:37:28,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 07:37:28,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 07:37:28,720 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 07:37:28,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 07:37:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:37:30,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 5076 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-03 07:37:30,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 07:37:30,224 INFO L134 CoverageAnalysis]: Checked inductivity of 4975 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 4877 trivial. 0 not checked. [2023-04-03 07:37:30,224 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 07:37:30,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706944103] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:37:30,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 07:37:30,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2023-04-03 07:37:30,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132409950] [2023-04-03 07:37:30,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:37:30,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-03 07:37:30,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:37:30,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-03 07:37:30,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:37:30,226 INFO L87 Difference]: Start difference. First operand 24139 states and 32052 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 3 states have call successors, (67), 3 states have call predecessors, (67), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2023-04-03 07:37:37,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:37:37,107 INFO L93 Difference]: Finished difference Result 53320 states and 70767 transitions. [2023-04-03 07:37:37,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-03 07:37:37,108 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 3 states have call successors, (67), 3 states have call predecessors, (67), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 508 [2023-04-03 07:37:37,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:37:37,224 INFO L225 Difference]: With dead ends: 53320 [2023-04-03 07:37:37,224 INFO L226 Difference]: Without dead ends: 29698 [2023-04-03 07:37:37,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 515 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:37:37,290 INFO L413 NwaCegarLoop]: 8440 mSDtfsCounter, 4572 mSDsluCounter, 6231 mSDsCounter, 0 mSdLazyCounter, 4004 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4572 SdHoareTripleChecker+Valid, 14671 SdHoareTripleChecker+Invalid, 4016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 4004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-04-03 07:37:37,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4572 Valid, 14671 Invalid, 4016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 4004 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-04-03 07:37:37,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29698 states. [2023-04-03 07:37:39,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29698 to 29605. [2023-04-03 07:37:39,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29605 states, 16623 states have (on average 1.2405702941707273) internal successors, (20622), 17348 states have internal predecessors, (20622), 9210 states have call successors, (9210), 3821 states have call predecessors, (9210), 3769 states have return successors, (9420), 8787 states have call predecessors, (9420), 9205 states have call successors, (9420) [2023-04-03 07:37:39,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29605 states to 29605 states and 39252 transitions. [2023-04-03 07:37:39,744 INFO L78 Accepts]: Start accepts. Automaton has 29605 states and 39252 transitions. Word has length 508 [2023-04-03 07:37:39,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:37:39,744 INFO L495 AbstractCegarLoop]: Abstraction has 29605 states and 39252 transitions. [2023-04-03 07:37:39,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 3 states have call successors, (67), 3 states have call predecessors, (67), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2023-04-03 07:37:39,745 INFO L276 IsEmpty]: Start isEmpty. Operand 29605 states and 39252 transitions. [2023-04-03 07:37:39,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2023-04-03 07:37:39,754 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:37:39,754 INFO L195 NwaCegarLoop]: trace histogram [40, 34, 34, 34, 34, 34, 34, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:37:39,771 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-03 07:37:39,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 07:37:39,955 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:37:39,956 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:37:39,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1478260160, now seen corresponding path program 1 times [2023-04-03 07:37:39,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:37:39,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068896633] [2023-04-03 07:37:39,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:37:39,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:37:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:37:40,963 INFO L134 CoverageAnalysis]: Checked inductivity of 4976 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4971 trivial. 0 not checked. [2023-04-03 07:37:40,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:37:40,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068896633] [2023-04-03 07:37:40,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068896633] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 07:37:40,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786232461] [2023-04-03 07:37:40,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:37:40,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 07:37:40,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 07:37:40,965 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 07:37:40,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-03 07:37:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:37:42,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 5078 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-03 07:37:42,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 07:37:42,238 INFO L134 CoverageAnalysis]: Checked inductivity of 4976 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 4877 trivial. 0 not checked. [2023-04-03 07:37:42,238 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 07:37:42,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786232461] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:37:42,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 07:37:42,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2023-04-03 07:37:42,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689873664] [2023-04-03 07:37:42,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:37:42,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-03 07:37:42,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:37:42,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-03 07:37:42,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:37:42,241 INFO L87 Difference]: Start difference. First operand 29605 states and 39252 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 3 states have call successors, (67), 3 states have call predecessors, (67), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2023-04-03 07:37:49,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:37:49,230 INFO L93 Difference]: Finished difference Result 64845 states and 85892 transitions. [2023-04-03 07:37:49,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-03 07:37:49,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 3 states have call successors, (67), 3 states have call predecessors, (67), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 510 [2023-04-03 07:37:49,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:37:49,340 INFO L225 Difference]: With dead ends: 64845 [2023-04-03 07:37:49,340 INFO L226 Difference]: Without dead ends: 35757 [2023-04-03 07:37:49,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 517 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:37:49,396 INFO L413 NwaCegarLoop]: 8432 mSDtfsCounter, 4545 mSDsluCounter, 6216 mSDsCounter, 0 mSdLazyCounter, 4005 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4545 SdHoareTripleChecker+Valid, 14648 SdHoareTripleChecker+Invalid, 4017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 4005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-04-03 07:37:49,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4545 Valid, 14648 Invalid, 4017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 4005 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-04-03 07:37:49,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35757 states. [2023-04-03 07:37:52,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35757 to 35658. [2023-04-03 07:37:52,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35658 states, 20008 states have (on average 1.2397540983606556) internal successors, (24805), 20884 states have internal predecessors, (24805), 11050 states have call successors, (11050), 4657 states have call predecessors, (11050), 4597 states have return successors, (11309), 10537 states have call predecessors, (11309), 11045 states have call successors, (11309) [2023-04-03 07:37:52,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35658 states to 35658 states and 47164 transitions. [2023-04-03 07:37:52,346 INFO L78 Accepts]: Start accepts. Automaton has 35658 states and 47164 transitions. Word has length 510 [2023-04-03 07:37:52,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:37:52,346 INFO L495 AbstractCegarLoop]: Abstraction has 35658 states and 47164 transitions. [2023-04-03 07:37:52,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 3 states have call successors, (67), 3 states have call predecessors, (67), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2023-04-03 07:37:52,347 INFO L276 IsEmpty]: Start isEmpty. Operand 35658 states and 47164 transitions. [2023-04-03 07:37:52,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2023-04-03 07:37:52,355 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:37:52,355 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 15, 14, 14, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:37:52,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-03 07:37:52,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-04-03 07:37:52,556 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:37:52,556 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:37:52,557 INFO L85 PathProgramCache]: Analyzing trace with hash 237476643, now seen corresponding path program 1 times [2023-04-03 07:37:52,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:37:52,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244888560] [2023-04-03 07:37:52,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:37:52,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:37:52,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:37:53,134 INFO L134 CoverageAnalysis]: Checked inductivity of 5117 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 5086 trivial. 0 not checked. [2023-04-03 07:37:53,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:37:53,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244888560] [2023-04-03 07:37:53,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244888560] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:37:53,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:37:53,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:37:53,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324720281] [2023-04-03 07:37:53,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:37:53,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:37:53,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:37:53,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:37:53,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:37:53,137 INFO L87 Difference]: Start difference. First operand 35658 states and 47164 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (80), 3 states have call predecessors, (80), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2023-04-03 07:37:56,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:37:56,868 INFO L93 Difference]: Finished difference Result 35664 states and 47169 transitions. [2023-04-03 07:37:56,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:37:56,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (80), 3 states have call predecessors, (80), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) Word has length 544 [2023-04-03 07:37:56,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:37:56,988 INFO L225 Difference]: With dead ends: 35664 [2023-04-03 07:37:56,989 INFO L226 Difference]: Without dead ends: 35662 [2023-04-03 07:37:57,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:37:57,005 INFO L413 NwaCegarLoop]: 4368 mSDtfsCounter, 4791 mSDsluCounter, 8712 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4794 SdHoareTripleChecker+Valid, 13080 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-03 07:37:57,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4794 Valid, 13080 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-03 07:37:57,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35662 states. [2023-04-03 07:37:59,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35662 to 35662. [2023-04-03 07:37:59,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35662 states, 20011 states have (on average 1.2397181550147418) internal successors, (24808), 20887 states have internal predecessors, (24808), 11050 states have call successors, (11050), 4658 states have call predecessors, (11050), 4598 states have return successors, (11309), 10537 states have call predecessors, (11309), 11045 states have call successors, (11309) [2023-04-03 07:37:59,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35662 states to 35662 states and 47167 transitions. [2023-04-03 07:37:59,959 INFO L78 Accepts]: Start accepts. Automaton has 35662 states and 47167 transitions. Word has length 544 [2023-04-03 07:37:59,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:37:59,960 INFO L495 AbstractCegarLoop]: Abstraction has 35662 states and 47167 transitions. [2023-04-03 07:37:59,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (80), 3 states have call predecessors, (80), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2023-04-03 07:37:59,960 INFO L276 IsEmpty]: Start isEmpty. Operand 35662 states and 47167 transitions. [2023-04-03 07:37:59,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2023-04-03 07:37:59,971 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:37:59,971 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 16, 15, 15, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:37:59,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-04-03 07:37:59,971 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:37:59,972 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:37:59,972 INFO L85 PathProgramCache]: Analyzing trace with hash -289059036, now seen corresponding path program 1 times [2023-04-03 07:37:59,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:37:59,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267622352] [2023-04-03 07:37:59,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:37:59,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:38:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:38:00,495 INFO L134 CoverageAnalysis]: Checked inductivity of 5175 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 5142 trivial. 0 not checked. [2023-04-03 07:38:00,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:38:00,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267622352] [2023-04-03 07:38:00,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267622352] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:38:00,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:38:00,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:38:00,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753530142] [2023-04-03 07:38:00,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:38:00,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:38:00,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:38:00,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:38:00,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:38:00,497 INFO L87 Difference]: Start difference. First operand 35662 states and 47167 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (81), 3 states have call predecessors, (81), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2023-04-03 07:38:04,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:38:04,652 INFO L93 Difference]: Finished difference Result 35668 states and 47172 transitions. [2023-04-03 07:38:04,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:38:04,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (81), 3 states have call predecessors, (81), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) Word has length 549 [2023-04-03 07:38:04,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:38:04,807 INFO L225 Difference]: With dead ends: 35668 [2023-04-03 07:38:04,807 INFO L226 Difference]: Without dead ends: 35666 [2023-04-03 07:38:04,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:38:04,830 INFO L413 NwaCegarLoop]: 4368 mSDtfsCounter, 4791 mSDsluCounter, 8712 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4793 SdHoareTripleChecker+Valid, 13080 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-03 07:38:04,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4793 Valid, 13080 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-03 07:38:04,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35666 states. [2023-04-03 07:38:08,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35666 to 35666. [2023-04-03 07:38:08,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35666 states, 20014 states have (on average 1.239682222444289) internal successors, (24811), 20890 states have internal predecessors, (24811), 11050 states have call successors, (11050), 4659 states have call predecessors, (11050), 4599 states have return successors, (11309), 10537 states have call predecessors, (11309), 11045 states have call successors, (11309) [2023-04-03 07:38:08,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35666 states to 35666 states and 47170 transitions. [2023-04-03 07:38:08,179 INFO L78 Accepts]: Start accepts. Automaton has 35666 states and 47170 transitions. Word has length 549 [2023-04-03 07:38:08,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:38:08,180 INFO L495 AbstractCegarLoop]: Abstraction has 35666 states and 47170 transitions. [2023-04-03 07:38:08,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (81), 3 states have call predecessors, (81), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2023-04-03 07:38:08,180 INFO L276 IsEmpty]: Start isEmpty. Operand 35666 states and 47170 transitions. [2023-04-03 07:38:08,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2023-04-03 07:38:08,189 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:38:08,189 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 17, 16, 16, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:38:08,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-04-03 07:38:08,190 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:38:08,190 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:38:08,190 INFO L85 PathProgramCache]: Analyzing trace with hash -626418908, now seen corresponding path program 1 times [2023-04-03 07:38:08,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:38:08,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244956295] [2023-04-03 07:38:08,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:38:08,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:38:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:38:08,673 INFO L134 CoverageAnalysis]: Checked inductivity of 5236 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 5202 trivial. 0 not checked. [2023-04-03 07:38:08,674 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:38:08,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244956295] [2023-04-03 07:38:08,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244956295] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:38:08,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:38:08,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:38:08,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278644368] [2023-04-03 07:38:08,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:38:08,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:38:08,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:38:08,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:38:08,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:38:08,676 INFO L87 Difference]: Start difference. First operand 35666 states and 47170 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (82), 3 states have call predecessors, (82), 2 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) [2023-04-03 07:38:12,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:38:12,950 INFO L93 Difference]: Finished difference Result 35672 states and 47175 transitions. [2023-04-03 07:38:12,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:38:12,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (82), 3 states have call predecessors, (82), 2 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) Word has length 553 [2023-04-03 07:38:12,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:38:13,047 INFO L225 Difference]: With dead ends: 35672 [2023-04-03 07:38:13,047 INFO L226 Difference]: Without dead ends: 35668 [2023-04-03 07:38:13,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:38:13,063 INFO L413 NwaCegarLoop]: 4368 mSDtfsCounter, 4792 mSDsluCounter, 8712 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4793 SdHoareTripleChecker+Valid, 13080 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-03 07:38:13,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4793 Valid, 13080 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-03 07:38:13,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35668 states. [2023-04-03 07:38:16,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35668 to 35668. [2023-04-03 07:38:16,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35668 states, 20016 states have (on average 1.2396083133493205) internal successors, (24812), 20891 states have internal predecessors, (24812), 11050 states have call successors, (11050), 4660 states have call predecessors, (11050), 4599 states have return successors, (11309), 10537 states have call predecessors, (11309), 11045 states have call successors, (11309) [2023-04-03 07:38:16,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35668 states to 35668 states and 47171 transitions. [2023-04-03 07:38:16,220 INFO L78 Accepts]: Start accepts. Automaton has 35668 states and 47171 transitions. Word has length 553 [2023-04-03 07:38:16,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:38:16,221 INFO L495 AbstractCegarLoop]: Abstraction has 35668 states and 47171 transitions. [2023-04-03 07:38:16,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (82), 3 states have call predecessors, (82), 2 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) [2023-04-03 07:38:16,221 INFO L276 IsEmpty]: Start isEmpty. Operand 35668 states and 47171 transitions. [2023-04-03 07:38:16,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2023-04-03 07:38:16,229 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:38:16,229 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 18, 17, 17, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:38:16,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-04-03 07:38:16,230 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:38:16,230 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:38:16,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1203866209, now seen corresponding path program 1 times [2023-04-03 07:38:16,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:38:16,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524720844] [2023-04-03 07:38:16,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:38:16,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:38:16,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:38:16,689 INFO L134 CoverageAnalysis]: Checked inductivity of 5300 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 5255 trivial. 0 not checked. [2023-04-03 07:38:16,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:38:16,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524720844] [2023-04-03 07:38:16,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524720844] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:38:16,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:38:16,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:38:16,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600514118] [2023-04-03 07:38:16,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:38:16,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:38:16,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:38:16,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:38:16,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:38:16,692 INFO L87 Difference]: Start difference. First operand 35668 states and 47171 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (72), 3 states have call predecessors, (72), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2023-04-03 07:38:20,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:38:20,811 INFO L93 Difference]: Finished difference Result 35668 states and 47171 transitions. [2023-04-03 07:38:20,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:38:20,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (72), 3 states have call predecessors, (72), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 526 [2023-04-03 07:38:20,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:38:20,939 INFO L225 Difference]: With dead ends: 35668 [2023-04-03 07:38:20,940 INFO L226 Difference]: Without dead ends: 34885 [2023-04-03 07:38:20,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:38:20,961 INFO L413 NwaCegarLoop]: 4366 mSDtfsCounter, 4780 mSDsluCounter, 8711 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4780 SdHoareTripleChecker+Valid, 13077 SdHoareTripleChecker+Invalid, 1386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-03 07:38:20,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4780 Valid, 13077 Invalid, 1386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-03 07:38:20,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34885 states. [2023-04-03 07:38:24,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34885 to 34885. [2023-04-03 07:38:24,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34885 states, 19681 states have (on average 1.2404349372491235) internal successors, (24413), 20508 states have internal predecessors, (24413), 10773 states have call successors, (10773), 4488 states have call predecessors, (10773), 4429 states have return successors, (11036), 10309 states have call predecessors, (11036), 10772 states have call successors, (11036) [2023-04-03 07:38:24,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34885 states to 34885 states and 46222 transitions. [2023-04-03 07:38:24,337 INFO L78 Accepts]: Start accepts. Automaton has 34885 states and 46222 transitions. Word has length 526 [2023-04-03 07:38:24,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:38:24,337 INFO L495 AbstractCegarLoop]: Abstraction has 34885 states and 46222 transitions. [2023-04-03 07:38:24,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (72), 3 states have call predecessors, (72), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2023-04-03 07:38:24,338 INFO L276 IsEmpty]: Start isEmpty. Operand 34885 states and 46222 transitions. [2023-04-03 07:38:24,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2023-04-03 07:38:24,348 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:38:24,348 INFO L195 NwaCegarLoop]: trace histogram [42, 34, 34, 34, 34, 34, 34, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:38:24,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-04-03 07:38:24,348 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:38:24,349 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:38:24,349 INFO L85 PathProgramCache]: Analyzing trace with hash 380643112, now seen corresponding path program 1 times [2023-04-03 07:38:24,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:38:24,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532249379] [2023-04-03 07:38:24,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:38:24,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:38:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:38:24,777 INFO L134 CoverageAnalysis]: Checked inductivity of 5171 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 5137 trivial. 0 not checked. [2023-04-03 07:38:24,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:38:24,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532249379] [2023-04-03 07:38:24,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532249379] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:38:24,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:38:24,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:38:24,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017809323] [2023-04-03 07:38:24,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:38:24,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:38:24,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:38:24,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:38:24,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:38:24,780 INFO L87 Difference]: Start difference. First operand 34885 states and 46222 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (69), 3 states have call predecessors, (69), 3 states have return successors, (62), 4 states have call predecessors, (62), 3 states have call successors, (62) [2023-04-03 07:38:31,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:38:31,668 INFO L93 Difference]: Finished difference Result 75314 states and 99697 transitions. [2023-04-03 07:38:31,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:38:31,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (69), 3 states have call predecessors, (69), 3 states have return successors, (62), 4 states have call predecessors, (62), 3 states have call successors, (62) Word has length 536 [2023-04-03 07:38:31,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:38:31,807 INFO L225 Difference]: With dead ends: 75314 [2023-04-03 07:38:31,807 INFO L226 Difference]: Without dead ends: 40946 [2023-04-03 07:38:31,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-03 07:38:31,893 INFO L413 NwaCegarLoop]: 8192 mSDtfsCounter, 4435 mSDsluCounter, 20618 mSDsCounter, 0 mSdLazyCounter, 3142 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4436 SdHoareTripleChecker+Valid, 28810 SdHoareTripleChecker+Invalid, 3145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-04-03 07:38:31,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4436 Valid, 28810 Invalid, 3145 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 3142 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-04-03 07:38:31,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40946 states. [2023-04-03 07:38:35,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40946 to 40926. [2023-04-03 07:38:36,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40926 states, 23074 states have (on average 1.2390569472133137) internal successors, (28590), 24040 states have internal predecessors, (28590), 12589 states have call successors, (12589), 5324 states have call predecessors, (12589), 5261 states have return successors, (12905), 12052 states have call predecessors, (12905), 12588 states have call successors, (12905) [2023-04-03 07:38:36,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40926 states to 40926 states and 54084 transitions. [2023-04-03 07:38:36,180 INFO L78 Accepts]: Start accepts. Automaton has 40926 states and 54084 transitions. Word has length 536 [2023-04-03 07:38:36,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:38:36,181 INFO L495 AbstractCegarLoop]: Abstraction has 40926 states and 54084 transitions. [2023-04-03 07:38:36,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (69), 3 states have call predecessors, (69), 3 states have return successors, (62), 4 states have call predecessors, (62), 3 states have call successors, (62) [2023-04-03 07:38:36,181 INFO L276 IsEmpty]: Start isEmpty. Operand 40926 states and 54084 transitions. [2023-04-03 07:38:36,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2023-04-03 07:38:36,192 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:38:36,192 INFO L195 NwaCegarLoop]: trace histogram [42, 34, 34, 34, 34, 34, 34, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:38:36,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-04-03 07:38:36,192 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:38:36,193 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:38:36,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1033663979, now seen corresponding path program 1 times [2023-04-03 07:38:36,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:38:36,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932307610] [2023-04-03 07:38:36,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:38:36,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:38:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:38:36,757 INFO L134 CoverageAnalysis]: Checked inductivity of 5171 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 5137 trivial. 0 not checked. [2023-04-03 07:38:36,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:38:36,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932307610] [2023-04-03 07:38:36,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932307610] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:38:36,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:38:36,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:38:36,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319532510] [2023-04-03 07:38:36,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:38:36,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:38:36,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:38:36,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:38:36,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:38:36,759 INFO L87 Difference]: Start difference. First operand 40926 states and 54084 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (69), 3 states have call predecessors, (69), 3 states have return successors, (62), 4 states have call predecessors, (62), 3 states have call successors, (62) [2023-04-03 07:38:44,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:38:44,210 INFO L93 Difference]: Finished difference Result 92268 states and 121843 transitions. [2023-04-03 07:38:44,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:38:44,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (69), 3 states have call predecessors, (69), 3 states have return successors, (62), 4 states have call predecessors, (62), 3 states have call successors, (62) Word has length 537 [2023-04-03 07:38:44,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:38:44,390 INFO L225 Difference]: With dead ends: 92268 [2023-04-03 07:38:44,390 INFO L226 Difference]: Without dead ends: 51859 [2023-04-03 07:38:44,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-03 07:38:44,493 INFO L413 NwaCegarLoop]: 7897 mSDtfsCounter, 4434 mSDsluCounter, 20027 mSDsCounter, 0 mSdLazyCounter, 3068 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4434 SdHoareTripleChecker+Valid, 27924 SdHoareTripleChecker+Invalid, 3075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 3068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-04-03 07:38:44,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4434 Valid, 27924 Invalid, 3075 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 3068 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-04-03 07:38:44,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51859 states. [2023-04-03 07:38:49,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51859 to 51837. [2023-04-03 07:38:49,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51837 states, 29144 states have (on average 1.2382994784518253) internal successors, (36089), 30411 states have internal predecessors, (36089), 15908 states have call successors, (15908), 6871 states have call predecessors, (15908), 6783 states have return successors, (16349), 15181 states have call predecessors, (16349), 15907 states have call successors, (16349) [2023-04-03 07:38:49,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51837 states to 51837 states and 68346 transitions. [2023-04-03 07:38:49,542 INFO L78 Accepts]: Start accepts. Automaton has 51837 states and 68346 transitions. Word has length 537 [2023-04-03 07:38:49,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:38:49,543 INFO L495 AbstractCegarLoop]: Abstraction has 51837 states and 68346 transitions. [2023-04-03 07:38:49,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (69), 3 states have call predecessors, (69), 3 states have return successors, (62), 4 states have call predecessors, (62), 3 states have call successors, (62) [2023-04-03 07:38:49,543 INFO L276 IsEmpty]: Start isEmpty. Operand 51837 states and 68346 transitions. [2023-04-03 07:38:49,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2023-04-03 07:38:49,555 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:38:49,555 INFO L195 NwaCegarLoop]: trace histogram [42, 34, 34, 34, 34, 34, 34, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:38:49,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-04-03 07:38:49,556 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:38:49,556 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:38:49,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1317266532, now seen corresponding path program 1 times [2023-04-03 07:38:49,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:38:49,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89365986] [2023-04-03 07:38:49,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:38:49,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:38:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:38:50,095 INFO L134 CoverageAnalysis]: Checked inductivity of 5171 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 5137 trivial. 0 not checked. [2023-04-03 07:38:50,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:38:50,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89365986] [2023-04-03 07:38:50,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89365986] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:38:50,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:38:50,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:38:50,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811708850] [2023-04-03 07:38:50,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:38:50,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:38:50,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:38:50,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:38:50,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:38:50,097 INFO L87 Difference]: Start difference. First operand 51837 states and 68346 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (69), 3 states have call predecessors, (69), 3 states have return successors, (62), 4 states have call predecessors, (62), 3 states have call successors, (62) [2023-04-03 07:38:58,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:38:58,999 INFO L93 Difference]: Finished difference Result 113847 states and 150123 transitions. [2023-04-03 07:38:59,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:38:59,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (69), 3 states have call predecessors, (69), 3 states have return successors, (62), 4 states have call predecessors, (62), 3 states have call successors, (62) Word has length 538 [2023-04-03 07:38:59,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:38:59,221 INFO L225 Difference]: With dead ends: 113847 [2023-04-03 07:38:59,221 INFO L226 Difference]: Without dead ends: 62527 [2023-04-03 07:38:59,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-03 07:38:59,343 INFO L413 NwaCegarLoop]: 7986 mSDtfsCounter, 4434 mSDsluCounter, 20204 mSDsCounter, 0 mSdLazyCounter, 3111 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4434 SdHoareTripleChecker+Valid, 28190 SdHoareTripleChecker+Invalid, 3119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 3111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-04-03 07:38:59,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4434 Valid, 28190 Invalid, 3119 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 3111 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-04-03 07:38:59,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62527 states. [2023-04-03 07:39:05,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62527 to 62503. [2023-04-03 07:39:05,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62503 states, 35098 states have (on average 1.2384181434839592) internal successors, (43466), 36666 states have internal predecessors, (43466), 19161 states have call successors, (19161), 8355 states have call predecessors, (19161), 8242 states have return successors, (19727), 18244 states have call predecessors, (19727), 19160 states have call successors, (19727) [2023-04-03 07:39:05,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62503 states to 62503 states and 82354 transitions. [2023-04-03 07:39:05,470 INFO L78 Accepts]: Start accepts. Automaton has 62503 states and 82354 transitions. Word has length 538 [2023-04-03 07:39:05,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:39:05,471 INFO L495 AbstractCegarLoop]: Abstraction has 62503 states and 82354 transitions. [2023-04-03 07:39:05,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (69), 3 states have call predecessors, (69), 3 states have return successors, (62), 4 states have call predecessors, (62), 3 states have call successors, (62) [2023-04-03 07:39:05,471 INFO L276 IsEmpty]: Start isEmpty. Operand 62503 states and 82354 transitions. [2023-04-03 07:39:05,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2023-04-03 07:39:05,485 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:39:05,486 INFO L195 NwaCegarLoop]: trace histogram [42, 34, 34, 34, 34, 34, 34, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:39:05,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-04-03 07:39:05,486 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:39:05,486 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:39:05,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1900921162, now seen corresponding path program 1 times [2023-04-03 07:39:05,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:39:05,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784338059] [2023-04-03 07:39:05,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:39:05,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:39:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:39:05,835 INFO L134 CoverageAnalysis]: Checked inductivity of 5171 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 5137 trivial. 0 not checked. [2023-04-03 07:39:05,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:39:05,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784338059] [2023-04-03 07:39:05,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784338059] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:39:05,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:39:05,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:39:05,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588389094] [2023-04-03 07:39:05,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:39:05,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:39:05,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:39:05,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:39:05,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:39:05,837 INFO L87 Difference]: Start difference. First operand 62503 states and 82354 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (69), 3 states have call predecessors, (69), 3 states have return successors, (62), 4 states have call predecessors, (62), 3 states have call successors, (62)