/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 IntervalDomain -i ../sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 01:02:44,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 01:02:44,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 01:02:44,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 01:02:44,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 01:02:44,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 01:02:44,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 01:02:44,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 01:02:44,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 01:02:44,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 01:02:44,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 01:02:44,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 01:02:44,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 01:02:44,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 01:02:44,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 01:02:44,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 01:02:44,303 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 01:02:44,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 01:02:44,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 01:02:44,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 01:02:44,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 01:02:44,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 01:02:44,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 01:02:44,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 01:02:44,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 01:02:44,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 01:02:44,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 01:02:44,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 01:02:44,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 01:02:44,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 01:02:44,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 01:02:44,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 01:02:44,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 01:02:44,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 01:02:44,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 01:02:44,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 01:02:44,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 01:02:44,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 01:02:44,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 01:02:44,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 01:02:44,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 01:02:44,327 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 [2023-04-01 01:02:44,355 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 01:02:44,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 01:02:44,355 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 01:02:44,355 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 01:02:44,356 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 01:02:44,356 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 01:02:44,356 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 01:02:44,356 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 01:02:44,356 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 01:02:44,357 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 01:02:44,357 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 01:02:44,357 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 01:02:44,357 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 01:02:44,357 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 01:02:44,357 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 01:02:44,358 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 01:02:44,358 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 01:02:44,358 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 01:02:44,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 01:02:44,358 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 01:02:44,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 01:02:44,359 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 01:02:44,359 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 01:02:44,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 01:02:44,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 01:02:44,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 01:02:44,359 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 01:02:44,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 01:02:44,359 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 01:02:44,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 01:02:44,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 01:02:44,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 01:02:44,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 01:02:44,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 01:02:44,360 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 01:02:44,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 01:02:44,360 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 01:02:44,360 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 01:02:44,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 01:02:44,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 01:02:44,360 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 01:02:44,360 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-04-01 01:02:44,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 01:02:44,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 01:02:44,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 01:02:44,543 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 01:02:44,543 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 01:02:44,544 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i [2023-04-01 01:02:45,847 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 01:02:46,550 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 01:02:46,551 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i [2023-04-01 01:02:46,586 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce19f69f0/559ece756c3949f6bc34c000828d36a7/FLAG44d62410e [2023-04-01 01:02:46,597 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce19f69f0/559ece756c3949f6bc34c000828d36a7 [2023-04-01 01:02:46,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 01:02:46,599 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 01:02:46,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 01:02:46,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 01:02:46,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 01:02:46,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 01:02:46" (1/1) ... [2023-04-01 01:02:46,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@720ccd17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:02:46, skipping insertion in model container [2023-04-01 01:02:46,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 01:02:46" (1/1) ... [2023-04-01 01:02:46,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 01:02:46,697 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 01:02:49,765 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-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i[372197,372210] [2023-04-01 01:02:49,916 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 01:02:49,937 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 01:02:50,252 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-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i[372197,372210] [2023-04-01 01:02:50,258 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 01:02:50,310 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-01 01:02:50,310 WARN L667 CHandler]: The function __get_user_bad is called, but not defined or handled by StandardFunctionHandler. [2023-04-01 01:02:50,310 WARN L667 CHandler]: The function __put_user_bad is called, but not defined or handled by StandardFunctionHandler. [2023-04-01 01:02:50,310 WARN L667 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-01 01:02:50,315 INFO L208 MainTranslator]: Completed translation [2023-04-01 01:02:50,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:02:50 WrapperNode [2023-04-01 01:02:50,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 01:02:50,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 01:02:50,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 01:02:50,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 01:02:50,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:02:50" (1/1) ... [2023-04-01 01:02:50,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:02:50" (1/1) ... [2023-04-01 01:02:50,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:02:50" (1/1) ... [2023-04-01 01:02:50,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:02:50" (1/1) ... [2023-04-01 01:02:50,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:02:50" (1/1) ... [2023-04-01 01:02:50,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:02:50" (1/1) ... [2023-04-01 01:02:50,626 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:02:50" (1/1) ... [2023-04-01 01:02:50,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:02:50" (1/1) ... [2023-04-01 01:02:50,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 01:02:50,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 01:02:50,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 01:02:50,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 01:02:50,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:02:50" (1/1) ... [2023-04-01 01:02:50,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 01:02:50,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:02:50,730 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) [2023-04-01 01:02:50,735 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 [2023-04-01 01:02:50,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 01:02:50,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 01:02:50,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-04-01 01:02:50,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-01 01:02:50,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-04-01 01:02:50,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2023-04-01 01:02:50,756 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 01:02:50,756 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-04-01 01:02:50,756 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-04-01 01:02:50,756 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-01 01:02:50,756 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-04-01 01:02:50,756 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-04-01 01:02:50,756 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-04-01 01:02:50,756 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-04-01 01:02:50,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-04-01 01:02:50,756 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-04-01 01:02:50,756 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-04-01 01:02:50,756 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-04-01 01:02:50,756 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-04-01 01:02:50,756 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_and_test [2023-04-01 01:02:50,757 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2023-04-01 01:02:50,757 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2023-04-01 01:02:50,757 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-01 01:02:50,757 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-04-01 01:02:50,757 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-04-01 01:02:50,757 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-01 01:02:50,757 INFO L138 BoogieDeclarations]: Found implementation of procedure init_waitqueue_func_entry [2023-04-01 01:02:50,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_lock [2023-04-01 01:02:50,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock [2023-04-01 01:02:50,757 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu [2023-04-01 01:02:50,757 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2023-04-01 01:02:50,757 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2023-04-01 01:02:50,757 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2023-04-01 01:02:50,757 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2023-04-01 01:02:50,757 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2023-04-01 01:02:50,758 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2023-04-01 01:02:50,758 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2023-04-01 01:02:50,758 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-04-01 01:02:50,758 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-04-01 01:02:50,758 INFO L138 BoogieDeclarations]: Found implementation of procedure vring_need_event [2023-04-01 01:02:50,758 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 01:02:50,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-01 01:02:50,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-01 01:02:50,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-01 01:02:50,758 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-01 01:02:50,758 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2023-04-01 01:02:50,758 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-04-01 01:02:50,758 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-04-01 01:02:50,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2023-04-01 01:02:50,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2023-04-01 01:02:50,759 INFO L138 BoogieDeclarations]: Found implementation of procedure init_poll_funcptr [2023-04-01 01:02:50,759 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2023-04-01 01:02:50,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2023-04-01 01:02:50,759 INFO L138 BoogieDeclarations]: Found implementation of procedure need_resched [2023-04-01 01:02:50,759 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_has_feature [2023-04-01 01:02:50,759 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_func [2023-04-01 01:02:50,759 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_wakeup [2023-04-01 01:02:50,759 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_init [2023-04-01 01:02:50,759 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_init [2023-04-01 01:02:50,759 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_start [2023-04-01 01:02:50,759 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_stop [2023-04-01 01:02:50,759 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_seq_done [2023-04-01 01:02:50,759 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_flush [2023-04-01 01:02:50,760 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_flush [2023-04-01 01:02:50,760 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_queue [2023-04-01 01:02:50,760 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_queue [2023-04-01 01:02:50,760 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_reset [2023-04-01 01:02:50,760 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_worker [2023-04-01 01:02:50,760 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_free_iovecs [2023-04-01 01:02:50,760 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_enable_zcopy [2023-04-01 01:02:50,760 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_dev_alloc_iovecs [2023-04-01 01:02:50,760 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_dev_free_iovecs [2023-04-01 01:02:50,760 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_dev_init [2023-04-01 01:02:50,760 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_dev_check_owner [2023-04-01 01:02:50,760 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_attach_cgroups_work [2023-04-01 01:02:50,760 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_attach_cgroups [2023-04-01 01:02:50,760 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_dev_set_owner [2023-04-01 01:02:50,760 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_dev_reset_owner [2023-04-01 01:02:50,760 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_zerocopy_signal_used [2023-04-01 01:02:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_dev_cleanup [2023-04-01 01:02:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure log_access_ok [2023-04-01 01:02:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_memory_access_ok [2023-04-01 01:02:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure memory_access_ok [2023-04-01 01:02:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_access_ok [2023-04-01 01:02:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_log_access_ok [2023-04-01 01:02:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_log_access_ok [2023-04-01 01:02:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_access_ok [2023-04-01 01:02:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_set_memory [2023-04-01 01:02:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_set_vring [2023-04-01 01:02:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_dev_ioctl [2023-04-01 01:02:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure find_region [2023-04-01 01:02:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit_to_user [2023-04-01 01:02:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure log_write [2023-04-01 01:02:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_log_write [2023-04-01 01:02:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_update_used_flags [2023-04-01 01:02:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_update_avail_event [2023-04-01 01:02:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_init_used [2023-04-01 01:02:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_desc [2023-04-01 01:02:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure next_desc [2023-04-01 01:02:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure get_indirect [2023-04-01 01:02:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_get_vq_desc [2023-04-01 01:02:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_discard_vq_desc [2023-04-01 01:02:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_add_used [2023-04-01 01:02:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __vhost_add_used_n [2023-04-01 01:02:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_add_used_n [2023-04-01 01:02:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_notify [2023-04-01 01:02:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_signal [2023-04-01 01:02:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_add_used_and_signal [2023-04-01 01:02:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_add_used_and_signal_n [2023-04-01 01:02:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_enable_notify [2023-04-01 01:02:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_disable_notify [2023-04-01 01:02:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_zerocopy_done_signal [2023-04-01 01:02:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_ubuf_alloc [2023-04-01 01:02:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_ubuf_put [2023-04-01 01:02:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_ubuf_put_and_wait [2023-04-01 01:02:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_zerocopy_callback [2023-04-01 01:02:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2023-04-01 01:02:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2023-04-01 01:02:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2023-04-01 01:02:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2023-04-01 01:02:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2023-04-01 01:02:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2023-04-01 01:02:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2023-04-01 01:02:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2023-04-01 01:02:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2023-04-01 01:02:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2023-04-01 01:02:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2023-04-01 01:02:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_12 [2023-04-01 01:02:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2023-04-01 01:02:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_14 [2023-04-01 01:02:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2023-04-01 01:02:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_16 [2023-04-01 01:02:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_17 [2023-04-01 01:02:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_18 [2023-04-01 01:02:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_19 [2023-04-01 01:02:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-04-01 01:02:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure iov_length [2023-04-01 01:02:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2023-04-01 01:02:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2023-04-01 01:02:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2023-04-01 01:02:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_flag [2023-04-01 01:02:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_sock_zcopy [2023-04-01 01:02:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure move_iovec_hdr [2023-04-01 01:02:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_iovec_hdr [2023-04-01 01:02:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_poll_stop [2023-04-01 01:02:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_poll_start [2023-04-01 01:02:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_tx [2023-04-01 01:02:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure peek_head_len [2023-04-01 01:02:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rx_bufs [2023-04-01 01:02:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_rx [2023-04-01 01:02:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_tx_kick [2023-04-01 01:02:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_rx_kick [2023-04-01 01:02:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_tx_net [2023-04-01 01:02:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_rx_net [2023-04-01 01:02:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_open [2023-04-01 01:02:50,766 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_disable_vq [2023-04-01 01:02:50,766 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_enable_vq [2023-04-01 01:02:50,766 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_stop_vq [2023-04-01 01:02:50,766 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_stop [2023-04-01 01:02:50,766 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_flush_vq [2023-04-01 01:02:50,766 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_flush [2023-04-01 01:02:50,766 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_release [2023-04-01 01:02:50,766 INFO L138 BoogieDeclarations]: Found implementation of procedure get_raw_socket [2023-04-01 01:02:50,766 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tap_socket [2023-04-01 01:02:50,766 INFO L138 BoogieDeclarations]: Found implementation of procedure get_socket [2023-04-01 01:02:50,766 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_set_backend [2023-04-01 01:02:50,766 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_reset_owner [2023-04-01 01:02:50,766 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_set_features [2023-04-01 01:02:50,766 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_ioctl [2023-04-01 01:02:50,766 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_compat_ioctl [2023-04-01 01:02:50,766 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_init [2023-04-01 01:02:50,766 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_exit [2023-04-01 01:02:50,767 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 01:02:50,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_39 [2023-04-01 01:02:50,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_40 [2023-04-01 01:02:50,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_41 [2023-04-01 01:02:50,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_42 [2023-04-01 01:02:50,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_43 [2023-04-01 01:02:50,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_44 [2023-04-01 01:02:50,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_45 [2023-04-01 01:02:50,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_46 [2023-04-01 01:02:50,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_47 [2023-04-01 01:02:50,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_48 [2023-04-01 01:02:50,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_49 [2023-04-01 01:02:50,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_50 [2023-04-01 01:02:50,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_51 [2023-04-01 01:02:50,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_52 [2023-04-01 01:02:50,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_53 [2023-04-01 01:02:50,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_54 [2023-04-01 01:02:50,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_55 [2023-04-01 01:02:50,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_56 [2023-04-01 01:02:50,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_57 [2023-04-01 01:02:50,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_58 [2023-04-01 01:02:50,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_59 [2023-04-01 01:02:50,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_60 [2023-04-01 01:02:50,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_61 [2023-04-01 01:02:50,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_62 [2023-04-01 01:02:50,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_63 [2023-04-01 01:02:50,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_64 [2023-04-01 01:02:50,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_65 [2023-04-01 01:02:50,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_66 [2023-04-01 01:02:50,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_67 [2023-04-01 01:02:50,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_68 [2023-04-01 01:02:50,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_69 [2023-04-01 01:02:50,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_70 [2023-04-01 01:02:50,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_71 [2023-04-01 01:02:50,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_72 [2023-04-01 01:02:50,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_73 [2023-04-01 01:02:50,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_74 [2023-04-01 01:02:50,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-01 01:02:50,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-01 01:02:50,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex [2023-04-01 01:02:50,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex [2023-04-01 01:02:50,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex [2023-04-01 01:02:50,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex [2023-04-01 01:02:50,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex [2023-04-01 01:02:50,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex [2023-04-01 01:02:50,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex [2023-04-01 01:02:50,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2023-04-01 01:02:50,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2023-04-01 01:02:50,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2023-04-01 01:02:50,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2023-04-01 01:02:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-01 01:02:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2023-04-01 01:02:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2023-04-01 01:02:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mtx [2023-04-01 01:02:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mtx [2023-04-01 01:02:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mtx [2023-04-01 01:02:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mtx [2023-04-01 01:02:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mtx [2023-04-01 01:02:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mtx [2023-04-01 01:02:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mtx [2023-04-01 01:02:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex [2023-04-01 01:02:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex [2023-04-01 01:02:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex [2023-04-01 01:02:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex [2023-04-01 01:02:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex [2023-04-01 01:02:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex [2023-04-01 01:02:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex [2023-04-01 01:02:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-01 01:02:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-01 01:02:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-04-01 01:02:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-01 01:02:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-04-01 01:02:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2023-04-01 01:02:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-04-01 01:02:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-01 01:02:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-04-01 01:02:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-04-01 01:02:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-04-01 01:02:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2023-04-01 01:02:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-04-01 01:02:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2023-04-01 01:02:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-01 01:02:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2023-04-01 01:02:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure cgroup_attach_task_all [2023-04-01 01:02:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-04-01 01:02:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_fileget [2023-04-01 01:02:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_put [2023-04-01 01:02:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_fget [2023-04-01 01:02:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_signal [2023-04-01 01:02:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure fget [2023-04-01 01:02:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-04-01 01:02:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2023-04-01 01:02:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure get_task_mm [2023-04-01 01:02:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure get_user_pages_fast [2023-04-01 01:02:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_create_on_node [2023-04-01 01:02:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_should_stop [2023-04-01 01:02:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2023-04-01 01:02:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-04-01 01:02:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-04-01 01:02:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2023-04-01 01:02:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2023-04-01 01:02:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2023-04-01 01:02:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2023-04-01 01:02:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure macvtap_get_socket [2023-04-01 01:02:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromiovec [2023-04-01 01:02:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toiovecend [2023-04-01 01:02:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-04-01 01:02:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2023-04-01 01:02:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2023-04-01 01:02:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure mmput [2023-04-01 01:02:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-04-01 01:02:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2023-04-01 01:02:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-01 01:02:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2023-04-01 01:02:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2023-04-01 01:02:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_cpu_idle [2023-04-01 01:02:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lockdep_current_cpu_online [2023-04-01 01:02:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2023-04-01 01:02:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-04-01 01:02:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure set_page_dirty_lock [2023-04-01 01:02:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure sockfd_lookup [2023-04-01 01:02:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_sched [2023-04-01 01:02:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get_socket [2023-04-01 01:02:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure unuse_mm [2023-04-01 01:02:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure use_mm [2023-04-01 01:02:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2023-04-01 01:02:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2023-04-01 01:02:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-04-01 01:02:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2023-04-01 01:02:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-01 01:02:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-01 01:02:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 01:02:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 01:02:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 01:02:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 01:02:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 01:02:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 01:02:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-01 01:02:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-04-01 01:02:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-04-01 01:02:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-04-01 01:02:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-04-01 01:02:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-01 01:02:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 01:02:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-04-01 01:02:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-04-01 01:02:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 01:02:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2023-04-01 01:02:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-04-01 01:02:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-04-01 01:02:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-04-01 01:02:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-04-01 01:02:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2023-04-01 01:02:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-04-01 01:02:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-04-01 01:02:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-04-01 01:02:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-04-01 01:02:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-04-01 01:02:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-04-01 01:02:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 01:02:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-04-01 01:02:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 01:02:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_and_test [2023-04-01 01:02:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2023-04-01 01:02:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2023-04-01 01:02:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2023-04-01 01:02:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2023-04-01 01:02:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-04-01 01:02:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2023-04-01 01:02:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2023-04-01 01:02:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-01 01:02:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2023-04-01 01:02:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2023-04-01 01:02:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2023-04-01 01:02:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2023-04-01 01:02:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2023-04-01 01:02:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2023-04-01 01:02:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2023-04-01 01:02:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_17 [2023-04-01 01:02:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_19 [2023-04-01 01:02:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-04-01 01:02:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2023-04-01 01:02:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2023-04-01 01:02:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2023-04-01 01:02:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2023-04-01 01:02:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2023-04-01 01:02:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_12 [2023-04-01 01:02:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_14 [2023-04-01 01:02:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_16 [2023-04-01 01:02:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_18 [2023-04-01 01:02:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex [2023-04-01 01:02:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex [2023-04-01 01:02:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2023-04-01 01:02:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2023-04-01 01:02:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mtx [2023-04-01 01:02:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mtx [2023-04-01 01:02:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex [2023-04-01 01:02:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex [2023-04-01 01:02:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex [2023-04-01 01:02:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2023-04-01 01:02:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2023-04-01 01:02:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2023-04-01 01:02:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-01 01:02:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2023-04-01 01:02:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-04-01 01:02:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2023-04-01 01:02:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-01 01:02:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-01 01:02:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-04-01 01:02:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-04-01 01:02:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-01 01:02:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-01 01:02:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure init_waitqueue_func_entry [2023-04-01 01:02:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2023-04-01 01:02:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2023-04-01 01:02:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-04-01 01:02:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2023-04-01 01:02:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-04-01 01:02:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2023-04-01 01:02:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_put [2023-04-01 01:02:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_fget [2023-04-01 01:02:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_fileget [2023-04-01 01:02:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_signal [2023-04-01 01:02:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_sched [2023-04-01 01:02:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_lock [2023-04-01 01:02:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_unlock [2023-04-01 01:02:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu [2023-04-01 01:02:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_cpu_idle [2023-04-01 01:02:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lockdep_current_cpu_online [2023-04-01 01:02:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2023-04-01 01:02:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2023-04-01 01:02:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-04-01 01:02:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2023-04-01 01:02:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2023-04-01 01:02:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2023-04-01 01:02:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2023-04-01 01:02:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2023-04-01 01:02:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure get_user_pages_fast [2023-04-01 01:02:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure set_page_dirty_lock [2023-04-01 01:02:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2023-04-01 01:02:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-04-01 01:02:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-04-01 01:02:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-04-01 01:02:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure vring_need_event [2023-04-01 01:02:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromiovec [2023-04-01 01:02:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-01 01:02:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 01:02:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 01:02:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 01:02:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-01 01:02:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-01 01:02:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-01 01:02:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 01:02:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-01 01:02:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-01 01:02:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2023-04-01 01:02:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2023-04-01 01:02:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_enhanced_fast_string [2023-04-01 01:02:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic_string [2023-04-01 01:02:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic_unrolled [2023-04-01 01:02:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2023-04-01 01:02:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-04-01 01:02:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-04-01 01:02:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-04-01 01:02:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-04-01 01:02:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2023-04-01 01:02:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2023-04-01 01:02:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure use_mm [2023-04-01 01:02:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure unuse_mm [2023-04-01 01:02:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure init_poll_funcptr [2023-04-01 01:02:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2023-04-01 01:02:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2023-04-01 01:02:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-04-01 01:02:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2023-04-01 01:02:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure mmput [2023-04-01 01:02:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure get_task_mm [2023-04-01 01:02:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure need_resched [2023-04-01 01:02:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_create_on_node [2023-04-01 01:02:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2023-04-01 01:02:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_should_stop [2023-04-01 01:02:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure cgroup_attach_task_all [2023-04-01 01:02:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_init [2023-04-01 01:02:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_queue [2023-04-01 01:02:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_init [2023-04-01 01:02:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_start [2023-04-01 01:02:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_stop [2023-04-01 01:02:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_flush [2023-04-01 01:02:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_queue [2023-04-01 01:02:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_ubuf_alloc [2023-04-01 01:02:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_ubuf_put [2023-04-01 01:02:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_ubuf_put_and_wait [2023-04-01 01:02:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_dev_init [2023-04-01 01:02:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_dev_check_owner [2023-04-01 01:02:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_dev_reset_owner [2023-04-01 01:02:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_dev_cleanup [2023-04-01 01:02:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_dev_ioctl [2023-04-01 01:02:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_access_ok [2023-04-01 01:02:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_log_access_ok [2023-04-01 01:02:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_get_vq_desc [2023-04-01 01:02:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_discard_vq_desc [2023-04-01 01:02:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_init_used [2023-04-01 01:02:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_add_used [2023-04-01 01:02:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_add_used_n [2023-04-01 01:02:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_add_used_and_signal [2023-04-01 01:02:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_add_used_and_signal_n [2023-04-01 01:02:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_signal [2023-04-01 01:02:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_disable_notify [2023-04-01 01:02:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_enable_notify [2023-04-01 01:02:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_log_write [2023-04-01 01:02:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_zerocopy_callback [2023-04-01 01:02:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_zerocopy_signal_used [2023-04-01 01:02:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_has_feature [2023-04-01 01:02:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_enable_zcopy [2023-04-01 01:02:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_func [2023-04-01 01:02:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_wakeup [2023-04-01 01:02:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 01:02:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 01:02:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-01 01:02:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_seq_done [2023-04-01 01:02:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_flush [2023-04-01 01:02:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_reset [2023-04-01 01:02:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_worker [2023-04-01 01:02:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_free_iovecs [2023-04-01 01:02:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_dev_alloc_iovecs [2023-04-01 01:02:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_dev_free_iovecs [2023-04-01 01:02:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_attach_cgroups_work [2023-04-01 01:02:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_attach_cgroups [2023-04-01 01:02:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_dev_set_owner [2023-04-01 01:02:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure log_access_ok [2023-04-01 01:02:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure vq_memory_access_ok [2023-04-01 01:02:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure memory_access_ok [2023-04-01 01:02:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure vq_access_ok [2023-04-01 01:02:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure vq_log_access_ok [2023-04-01 01:02:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_set_memory [2023-04-01 01:02:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-01 01:02:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_set_vring [2023-04-01 01:02:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure find_region [2023-04-01 01:02:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit_to_user [2023-04-01 01:02:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure log_write [2023-04-01 01:02:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_update_used_flags [2023-04-01 01:02:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_update_avail_event [2023-04-01 01:02:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure translate_desc [2023-04-01 01:02:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure next_desc [2023-04-01 01:02:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure get_indirect [2023-04-01 01:02:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure __vhost_add_used_n [2023-04-01 01:02:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_notify [2023-04-01 01:02:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_zerocopy_done_signal [2023-04-01 01:02:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-04-01 01:02:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_48 [2023-04-01 01:02:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_40 [2023-04-01 01:02:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_42 [2023-04-01 01:02:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_44 [2023-04-01 01:02:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_46 [2023-04-01 01:02:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_49 [2023-04-01 01:02:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_51 [2023-04-01 01:02:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_53 [2023-04-01 01:02:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_55 [2023-04-01 01:02:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_57 [2023-04-01 01:02:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_60 [2023-04-01 01:02:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_62 [2023-04-01 01:02:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_63 [2023-04-01 01:02:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_64 [2023-04-01 01:02:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_65 [2023-04-01 01:02:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_67 [2023-04-01 01:02:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_69 [2023-04-01 01:02:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_71 [2023-04-01 01:02:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_72 [2023-04-01 01:02:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_74 [2023-04-01 01:02:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_39 [2023-04-01 01:02:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_41 [2023-04-01 01:02:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_43 [2023-04-01 01:02:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_45 [2023-04-01 01:02:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_47 [2023-04-01 01:02:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_50 [2023-04-01 01:02:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_52 [2023-04-01 01:02:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_54 [2023-04-01 01:02:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_56 [2023-04-01 01:02:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_58 [2023-04-01 01:02:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_59 [2023-04-01 01:02:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_61 [2023-04-01 01:02:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_66 [2023-04-01 01:02:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_68 [2023-04-01 01:02:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_70 [2023-04-01 01:02:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_73 [2023-04-01 01:02:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure iov_length [2023-04-01 01:02:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toiovecend [2023-04-01 01:02:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2023-04-01 01:02:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2023-04-01 01:02:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure fget [2023-04-01 01:02:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2023-04-01 01:02:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure sockfd_lookup [2023-04-01 01:02:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2023-04-01 01:02:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2023-04-01 01:02:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2023-04-01 01:02:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get_socket [2023-04-01 01:02:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure macvtap_get_socket [2023-04-01 01:02:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure sock_flag [2023-04-01 01:02:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_sock_zcopy [2023-04-01 01:02:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure move_iovec_hdr [2023-04-01 01:02:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure copy_iovec_hdr [2023-04-01 01:02:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure tx_poll_stop [2023-04-01 01:02:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure tx_poll_start [2023-04-01 01:02:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure handle_tx [2023-04-01 01:02:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-04-01 01:02:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure peek_head_len [2023-04-01 01:02:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure get_rx_bufs [2023-04-01 01:02:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure handle_rx [2023-04-01 01:02:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2023-04-01 01:02:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure handle_tx_kick [2023-04-01 01:02:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure handle_rx_kick [2023-04-01 01:02:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure handle_tx_net [2023-04-01 01:02:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure handle_rx_net [2023-04-01 01:02:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_open [2023-04-01 01:02:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_disable_vq [2023-04-01 01:02:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_enable_vq [2023-04-01 01:02:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_stop_vq [2023-04-01 01:02:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_stop [2023-04-01 01:02:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_flush_vq [2023-04-01 01:02:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_flush [2023-04-01 01:02:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_release [2023-04-01 01:02:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure get_raw_socket [2023-04-01 01:02:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure get_tap_socket [2023-04-01 01:02:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure get_socket [2023-04-01 01:02:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_set_backend [2023-04-01 01:02:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_reset_owner [2023-04-01 01:02:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_set_features [2023-04-01 01:02:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_ioctl [2023-04-01 01:02:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_compat_ioctl [2023-04-01 01:02:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_init [2023-04-01 01:02:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_exit [2023-04-01 01:02:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-01 01:02:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-04-01 01:02:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-01 01:02:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-04-01 01:02:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 01:02:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-01 01:02:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex [2023-04-01 01:02:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex [2023-04-01 01:02:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex [2023-04-01 01:02:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex [2023-04-01 01:02:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex [2023-04-01 01:02:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2023-04-01 01:02:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2023-04-01 01:02:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2023-04-01 01:02:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-01 01:02:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2023-04-01 01:02:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mtx [2023-04-01 01:02:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mtx [2023-04-01 01:02:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mtx [2023-04-01 01:02:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mtx [2023-04-01 01:02:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mtx [2023-04-01 01:02:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex [2023-04-01 01:02:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex [2023-04-01 01:02:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex [2023-04-01 01:02:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex [2023-04-01 01:02:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-01 01:02:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-01 01:02:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 01:02:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 01:02:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 01:02:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-01 01:02:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 01:02:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-01 01:02:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-01 01:02:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-01 01:02:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-01 01:02:51,507 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 01:02:51,512 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 01:02:56,303 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5857: SUMMARY for call #t~ret139 := ldv__builtin_expect((if 0 != ~ret~2 then 1 else 0), 0); srcloc: null [2023-04-01 01:02:56,303 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5857-1: assume -2147483648 <= #t~ret139 && #t~ret139 <= 2147483647;~tmp___1~3 := #t~ret139;havoc #t~ret139; [2023-04-01 01:02:56,303 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5845: SUMMARY for call #t~ret138 := ldv__builtin_expect((if 0 != ~ret~2 then 1 else 0), 0); srcloc: null [2023-04-01 01:02:56,303 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5845-1: assume -2147483648 <= #t~ret138 && #t~ret138 <= 2147483647;~tmp___0~6 := #t~ret138;havoc #t~ret138; [2023-04-01 01:02:56,303 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5866: assume #t~switch137; [2023-04-01 01:02:56,303 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5866: assume !#t~switch137; [2023-04-01 01:02:56,303 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume #t~switch137;#res := ~ret~2; [2023-04-01 01:02:56,303 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5858: assume 0 != ~tmp___1~3;#res := ~ret~2; [2023-04-01 01:02:56,304 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5858: assume !(0 != ~tmp___1~3);#res := ~ret~2; [2023-04-01 01:02:56,304 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !#t~switch137;#t~switch137 := #t~switch137 || 2 == ~size; [2023-04-01 01:02:56,304 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5854: assume #t~switch137; [2023-04-01 01:02:56,304 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5854: assume !#t~switch137;#t~switch137 := true; [2023-04-01 01:02:56,304 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5825: havoc #t~switch137; [2023-04-01 01:02:56,304 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5846: assume 0 != ~tmp___0~6;#res := ~ret~2; [2023-04-01 01:02:56,304 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5846: assume !(0 != ~tmp___0~6);#res := ~ret~2; [2023-04-01 01:02:56,304 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5842: assume #t~switch137; [2023-04-01 01:02:56,304 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5842: assume !#t~switch137;#t~switch137 := #t~switch137 || 16 == ~size; [2023-04-01 01:02:56,304 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5838: assume #t~switch137;#res := ~ret~2; [2023-04-01 01:02:56,304 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5838: assume !#t~switch137;#t~switch137 := #t~switch137 || 10 == ~size; [2023-04-01 01:02:56,304 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5867: SUMMARY for call #t~ret140 := copy_user_generic(~dst.base, ~dst.offset, ~src.base, ~src.offset, ~size); srcloc: null [2023-04-01 01:02:56,304 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5834: assume #t~switch137;#res := ~ret~2; [2023-04-01 01:02:56,304 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5834: assume !#t~switch137;#t~switch137 := #t~switch137 || 8 == ~size; [2023-04-01 01:02:56,304 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5867-1: ~tmp___2~4 := #t~ret140;havoc #t~ret140;#res := (if ~tmp___2~4 % 4294967296 % 4294967296 <= 2147483647 then ~tmp___2~4 % 4294967296 % 4294967296 else ~tmp___2~4 % 4294967296 % 4294967296 - 4294967296); [2023-04-01 01:02:56,304 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5830: assume #t~switch137;#res := ~ret~2; [2023-04-01 01:02:56,304 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5830: assume !#t~switch137;#t~switch137 := #t~switch137 || 4 == ~size; [2023-04-01 01:02:57,854 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5760: havoc #t~switch132; [2023-04-01 01:02:57,855 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5785: SUMMARY for call #t~ret133 := ldv__builtin_expect((if 0 != ~ret~1 then 1 else 0), 0); srcloc: null [2023-04-01 01:02:57,855 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5785-1: assume -2147483648 <= #t~ret133 && #t~ret133 <= 2147483647;~tmp___0~5 := #t~ret133;havoc #t~ret133; [2023-04-01 01:02:57,855 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: assume #t~switch132; [2023-04-01 01:02:57,855 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: assume !#t~switch132;#t~switch132 := #t~switch132 || 16 == ~size; [2023-04-01 01:02:57,855 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5808-1: ~tmp___2~3 := #t~ret135;havoc #t~ret135;#res := (if ~tmp___2~3 % 4294967296 % 4294967296 <= 2147483647 then ~tmp___2~3 % 4294967296 % 4294967296 else ~tmp___2~3 % 4294967296 % 4294967296 - 4294967296); [2023-04-01 01:02:57,855 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5808: SUMMARY for call #t~ret135 := copy_user_generic(~dst.base, ~dst.offset, ~src.base, ~src.offset, ~size); srcloc: null [2023-04-01 01:02:57,855 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5771: assume #t~switch132;#res := ~ret~1; [2023-04-01 01:02:57,855 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5771: assume !#t~switch132;#t~switch132 := #t~switch132 || 8 == ~size; [2023-04-01 01:02:57,855 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume #t~switch132;#res := ~ret~1; [2023-04-01 01:02:57,855 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5798: SUMMARY for call #t~ret134 := ldv__builtin_expect((if 0 != ~ret~1 then 1 else 0), 0); srcloc: null [2023-04-01 01:02:57,855 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5794: assume #t~switch132; [2023-04-01 01:02:57,855 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5794: assume !#t~switch132;#t~switch132 := true; [2023-04-01 01:02:57,856 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !#t~switch132;#t~switch132 := #t~switch132 || 2 == ~size; [2023-04-01 01:02:57,856 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5798-1: assume -2147483648 <= #t~ret134 && #t~ret134 <= 2147483647;~tmp___1~2 := #t~ret134;havoc #t~ret134; [2023-04-01 01:02:57,856 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5786: assume 0 != ~tmp___0~5;#res := ~ret~1; [2023-04-01 01:02:57,856 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5786: assume !(0 != ~tmp___0~5);#res := ~ret~1; [2023-04-01 01:02:57,856 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5807: assume #t~switch132; [2023-04-01 01:02:57,856 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5807: assume !#t~switch132; [2023-04-01 01:02:57,856 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5776: assume #t~switch132;#res := ~ret~1; [2023-04-01 01:02:57,856 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5776: assume !#t~switch132;#t~switch132 := #t~switch132 || 10 == ~size; [2023-04-01 01:02:57,856 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5799: assume 0 != ~tmp___1~2;#res := ~ret~1; [2023-04-01 01:02:57,856 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5799: assume !(0 != ~tmp___1~2);#res := ~ret~1; [2023-04-01 01:02:57,856 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5766: assume #t~switch132;#res := ~ret~1; [2023-04-01 01:02:57,856 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L5766: assume !#t~switch132;#t~switch132 := #t~switch132 || 4 == ~size; [2023-04-01 01:02:58,103 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 01:02:59,420 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 01:02:59,420 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-01 01:02:59,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 01:02:59 BoogieIcfgContainer [2023-04-01 01:02:59,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 01:02:59,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 01:02:59,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 01:02:59,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 01:02:59,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 01:02:46" (1/3) ... [2023-04-01 01:02:59,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d9d3a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 01:02:59, skipping insertion in model container [2023-04-01 01:02:59,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:02:50" (2/3) ... [2023-04-01 01:02:59,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d9d3a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 01:02:59, skipping insertion in model container [2023-04-01 01:02:59,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 01:02:59" (3/3) ... [2023-04-01 01:02:59,434 INFO L112 eAbstractionObserver]: Analyzing ICFG main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i [2023-04-01 01:02:59,448 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 01:02:59,449 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 01:02:59,529 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 01:02:59,534 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;@4b1acc96, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 01:02:59,535 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 01:02:59,545 INFO L276 IsEmpty]: Start isEmpty. Operand has 2614 states, 1524 states have (on average 1.269028871391076) internal successors, (1934), 1582 states have internal predecessors, (1934), 795 states have call successors, (795), 248 states have call predecessors, (795), 248 states have return successors, (795), 785 states have call predecessors, (795), 795 states have call successors, (795) [2023-04-01 01:02:59,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-04-01 01:02:59,552 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:02:59,552 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:02:59,553 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:02:59,557 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:02:59,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1754017635, now seen corresponding path program 1 times [2023-04-01 01:02:59,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:02:59,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933874202] [2023-04-01 01:02:59,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:02:59,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:02:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:02:59,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 01:02:59,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:02:59,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933874202] [2023-04-01 01:02:59,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933874202] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:02:59,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:02:59,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:02:59,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244299774] [2023-04-01 01:02:59,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:02:59,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:02:59,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:02:59,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:02:59,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:02:59,981 INFO L87 Difference]: Start difference. First operand has 2614 states, 1524 states have (on average 1.269028871391076) internal successors, (1934), 1582 states have internal predecessors, (1934), 795 states have call successors, (795), 248 states have call predecessors, (795), 248 states have return successors, (795), 785 states have call predecessors, (795), 795 states have call successors, (795) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-01 01:03:02,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:03:02,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:03:02,627 INFO L93 Difference]: Finished difference Result 4840 states and 6762 transitions. [2023-04-01 01:03:02,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:03:02,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 25 [2023-04-01 01:03:02,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:03:02,678 INFO L225 Difference]: With dead ends: 4840 [2023-04-01 01:03:02,678 INFO L226 Difference]: Without dead ends: 2420 [2023-04-01 01:03:02,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:03:02,698 INFO L413 NwaCegarLoop]: 3117 mSDtfsCounter, 3315 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3315 SdHoareTripleChecker+Valid, 3122 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-01 01:03:02,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3315 Valid, 3122 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2023-04-01 01:03:02,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2420 states. [2023-04-01 01:03:02,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2420 to 2420. [2023-04-01 01:03:02,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 1434 states have (on average 1.2740585774058577) internal successors, (1827), 1486 states have internal predecessors, (1827), 747 states have call successors, (747), 241 states have call predecessors, (747), 238 states have return successors, (740), 731 states have call predecessors, (740), 740 states have call successors, (740) [2023-04-01 01:03:02,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3314 transitions. [2023-04-01 01:03:02,968 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 3314 transitions. Word has length 25 [2023-04-01 01:03:02,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:03:02,969 INFO L495 AbstractCegarLoop]: Abstraction has 2420 states and 3314 transitions. [2023-04-01 01:03:02,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-01 01:03:02,969 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 3314 transitions. [2023-04-01 01:03:02,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-04-01 01:03:02,970 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:03:02,970 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:03:02,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 01:03:02,971 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:03:02,971 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:03:02,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1461566296, now seen corresponding path program 1 times [2023-04-01 01:03:02,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:03:02,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033544151] [2023-04-01 01:03:02,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:03:02,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:03:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:03:03,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 01:03:03,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:03:03,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033544151] [2023-04-01 01:03:03,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033544151] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:03:03,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:03:03,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:03:03,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277783095] [2023-04-01 01:03:03,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:03:03,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:03:03,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:03:03,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:03:03,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:03:03,116 INFO L87 Difference]: Start difference. First operand 2420 states and 3314 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-01 01:03:05,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:03:05,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:03:05,686 INFO L93 Difference]: Finished difference Result 2422 states and 3315 transitions. [2023-04-01 01:03:05,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:03:05,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 26 [2023-04-01 01:03:05,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:03:05,699 INFO L225 Difference]: With dead ends: 2422 [2023-04-01 01:03:05,699 INFO L226 Difference]: Without dead ends: 2419 [2023-04-01 01:03:05,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:03:05,702 INFO L413 NwaCegarLoop]: 3102 mSDtfsCounter, 3298 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3298 SdHoareTripleChecker+Valid, 3107 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-01 01:03:05,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3298 Valid, 3107 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2023-04-01 01:03:05,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2419 states. [2023-04-01 01:03:05,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2419 to 2419. [2023-04-01 01:03:05,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2419 states, 1434 states have (on average 1.2733612273361228) internal successors, (1826), 1485 states have internal predecessors, (1826), 746 states have call successors, (746), 241 states have call predecessors, (746), 238 states have return successors, (740), 731 states have call predecessors, (740), 740 states have call successors, (740) [2023-04-01 01:03:05,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2419 states to 2419 states and 3312 transitions. [2023-04-01 01:03:05,796 INFO L78 Accepts]: Start accepts. Automaton has 2419 states and 3312 transitions. Word has length 26 [2023-04-01 01:03:05,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:03:05,796 INFO L495 AbstractCegarLoop]: Abstraction has 2419 states and 3312 transitions. [2023-04-01 01:03:05,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-01 01:03:05,797 INFO L276 IsEmpty]: Start isEmpty. Operand 2419 states and 3312 transitions. [2023-04-01 01:03:05,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-04-01 01:03:05,797 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:03:05,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:03:05,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 01:03:05,797 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:03:05,798 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:03:05,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1934551814, now seen corresponding path program 1 times [2023-04-01 01:03:05,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:03:05,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631281832] [2023-04-01 01:03:05,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:03:05,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:03:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:03:05,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 01:03:05,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:03:05,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631281832] [2023-04-01 01:03:05,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631281832] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:03:05,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:03:05,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:03:05,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424301048] [2023-04-01 01:03:05,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:03:05,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:03:05,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:03:05,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:03:05,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:03:05,865 INFO L87 Difference]: Start difference. First operand 2419 states and 3312 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-01 01:03:07,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:03:08,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:03:08,282 INFO L93 Difference]: Finished difference Result 2421 states and 3313 transitions. [2023-04-01 01:03:08,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:03:08,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 27 [2023-04-01 01:03:08,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:03:08,295 INFO L225 Difference]: With dead ends: 2421 [2023-04-01 01:03:08,295 INFO L226 Difference]: Without dead ends: 2418 [2023-04-01 01:03:08,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:03:08,299 INFO L413 NwaCegarLoop]: 3100 mSDtfsCounter, 3295 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3295 SdHoareTripleChecker+Valid, 3105 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-04-01 01:03:08,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3295 Valid, 3105 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2023-04-01 01:03:08,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2418 states. [2023-04-01 01:03:08,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2418 to 2418. [2023-04-01 01:03:08,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2418 states, 1434 states have (on average 1.2726638772663876) internal successors, (1825), 1484 states have internal predecessors, (1825), 745 states have call successors, (745), 241 states have call predecessors, (745), 238 states have return successors, (740), 731 states have call predecessors, (740), 740 states have call successors, (740) [2023-04-01 01:03:08,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3310 transitions. [2023-04-01 01:03:08,402 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3310 transitions. Word has length 27 [2023-04-01 01:03:08,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:03:08,402 INFO L495 AbstractCegarLoop]: Abstraction has 2418 states and 3310 transitions. [2023-04-01 01:03:08,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-01 01:03:08,402 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3310 transitions. [2023-04-01 01:03:08,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-04-01 01:03:08,403 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:03:08,403 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:03:08,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 01:03:08,404 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:03:08,404 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:03:08,404 INFO L85 PathProgramCache]: Analyzing trace with hash -159964309, now seen corresponding path program 1 times [2023-04-01 01:03:08,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:03:08,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809123243] [2023-04-01 01:03:08,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:03:08,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:03:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:03:08,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 01:03:08,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:03:08,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809123243] [2023-04-01 01:03:08,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809123243] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:03:08,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:03:08,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:03:08,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027882997] [2023-04-01 01:03:08,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:03:08,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:03:08,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:03:08,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:03:08,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:03:08,582 INFO L87 Difference]: Start difference. First operand 2418 states and 3310 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-01 01:03:10,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:03:12,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:03:14,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:03:15,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:03:15,346 INFO L93 Difference]: Finished difference Result 5537 states and 7567 transitions. [2023-04-01 01:03:15,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:03:15,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 28 [2023-04-01 01:03:15,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:03:15,362 INFO L225 Difference]: With dead ends: 5537 [2023-04-01 01:03:15,362 INFO L226 Difference]: Without dead ends: 3129 [2023-04-01 01:03:15,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:03:15,374 INFO L413 NwaCegarLoop]: 3578 mSDtfsCounter, 1336 mSDsluCounter, 2664 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 6242 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-04-01 01:03:15,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1336 Valid, 6242 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 451 Invalid, 3 Unknown, 0 Unchecked, 6.6s Time] [2023-04-01 01:03:15,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3129 states. [2023-04-01 01:03:15,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3129 to 3126. [2023-04-01 01:03:15,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 1830 states have (on average 1.2540983606557377) internal successors, (2295), 1903 states have internal predecessors, (2295), 946 states have call successors, (946), 368 states have call predecessors, (946), 349 states have return successors, (951), 900 states have call predecessors, (951), 921 states have call successors, (951) [2023-04-01 01:03:15,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 4192 transitions. [2023-04-01 01:03:15,516 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 4192 transitions. Word has length 28 [2023-04-01 01:03:15,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:03:15,516 INFO L495 AbstractCegarLoop]: Abstraction has 3126 states and 4192 transitions. [2023-04-01 01:03:15,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-01 01:03:15,516 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 4192 transitions. [2023-04-01 01:03:15,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-04-01 01:03:15,524 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:03:15,524 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-01 01:03:15,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 01:03:15,524 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:03:15,524 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:03:15,524 INFO L85 PathProgramCache]: Analyzing trace with hash 323644192, now seen corresponding path program 1 times [2023-04-01 01:03:15,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:03:15,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840340603] [2023-04-01 01:03:15,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:03:15,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:03:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:03:15,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-01 01:03:15,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:03:15,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840340603] [2023-04-01 01:03:15,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840340603] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:03:15,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:03:15,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:03:15,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351531089] [2023-04-01 01:03:15,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:03:15,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:03:15,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:03:15,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:03:15,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:03:15,783 INFO L87 Difference]: Start difference. First operand 3126 states and 4192 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-01 01:03:17,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:03:19,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:03:22,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:03:22,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:03:22,372 INFO L93 Difference]: Finished difference Result 5165 states and 6892 transitions. [2023-04-01 01:03:22,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:03:22,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 65 [2023-04-01 01:03:22,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:03:22,398 INFO L225 Difference]: With dead ends: 5165 [2023-04-01 01:03:22,398 INFO L226 Difference]: Without dead ends: 2521 [2023-04-01 01:03:22,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:03:22,492 INFO L413 NwaCegarLoop]: 2951 mSDtfsCounter, 2269 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2269 SdHoareTripleChecker+Valid, 3869 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-04-01 01:03:22,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2269 Valid, 3869 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 339 Invalid, 3 Unknown, 0 Unchecked, 6.5s Time] [2023-04-01 01:03:22,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2521 states. [2023-04-01 01:03:22,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2521 to 2521. [2023-04-01 01:03:22,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2521 states, 1481 states have (on average 1.2444294395678595) internal successors, (1843), 1537 states have internal predecessors, (1843), 745 states have call successors, (745), 310 states have call predecessors, (745), 294 states have return successors, (719), 704 states have call predecessors, (719), 719 states have call successors, (719) [2023-04-01 01:03:22,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 3307 transitions. [2023-04-01 01:03:22,613 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 3307 transitions. Word has length 65 [2023-04-01 01:03:22,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:03:22,615 INFO L495 AbstractCegarLoop]: Abstraction has 2521 states and 3307 transitions. [2023-04-01 01:03:22,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-01 01:03:22,616 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 3307 transitions. [2023-04-01 01:03:22,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-04-01 01:03:22,617 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:03:22,618 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-01 01:03:22,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 01:03:22,618 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:03:22,618 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:03:22,618 INFO L85 PathProgramCache]: Analyzing trace with hash 460483340, now seen corresponding path program 1 times [2023-04-01 01:03:22,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:03:22,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661910962] [2023-04-01 01:03:22,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:03:22,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:03:22,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 01:03:22,753 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 01:03:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 01:03:22,892 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 01:03:22,892 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 01:03:22,893 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 01:03:22,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-01 01:03:22,896 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-04-01 01:03:22,898 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 01:03:22,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 01:03:22 BoogieIcfgContainer [2023-04-01 01:03:22,964 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 01:03:22,964 INFO L158 Benchmark]: Toolchain (without parser) took 36364.89ms. Allocated memory was 334.5MB in the beginning and 873.5MB in the end (delta: 539.0MB). Free memory was 280.1MB in the beginning and 560.0MB in the end (delta: -279.9MB). Peak memory consumption was 260.2MB. Max. memory is 8.0GB. [2023-04-01 01:03:22,964 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 187.7MB. Free memory is still 133.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 01:03:22,965 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3715.45ms. Allocated memory is still 334.5MB. Free memory was 279.6MB in the beginning and 206.7MB in the end (delta: 72.9MB). Peak memory consumption was 203.4MB. Max. memory is 8.0GB. [2023-04-01 01:03:22,965 INFO L158 Benchmark]: Boogie Preprocessor took 366.94ms. Allocated memory was 334.5MB in the beginning and 480.2MB in the end (delta: 145.8MB). Free memory was 206.7MB in the beginning and 367.8MB in the end (delta: -161.1MB). Peak memory consumption was 25.0MB. Max. memory is 8.0GB. [2023-04-01 01:03:22,965 INFO L158 Benchmark]: RCFGBuilder took 8742.25ms. Allocated memory was 480.2MB in the beginning and 672.1MB in the end (delta: 191.9MB). Free memory was 367.8MB in the beginning and 316.7MB in the end (delta: 51.2MB). Peak memory consumption was 287.1MB. Max. memory is 8.0GB. [2023-04-01 01:03:22,965 INFO L158 Benchmark]: TraceAbstraction took 23535.65ms. Allocated memory was 672.1MB in the beginning and 873.5MB in the end (delta: 201.3MB). Free memory was 316.2MB in the beginning and 560.0MB in the end (delta: -243.8MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 01:03:22,966 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 187.7MB. Free memory is still 133.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 3715.45ms. Allocated memory is still 334.5MB. Free memory was 279.6MB in the beginning and 206.7MB in the end (delta: 72.9MB). Peak memory consumption was 203.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 366.94ms. Allocated memory was 334.5MB in the beginning and 480.2MB in the end (delta: 145.8MB). Free memory was 206.7MB in the beginning and 367.8MB in the end (delta: -161.1MB). Peak memory consumption was 25.0MB. Max. memory is 8.0GB. * RCFGBuilder took 8742.25ms. Allocated memory was 480.2MB in the beginning and 672.1MB in the end (delta: 191.9MB). Free memory was 367.8MB in the beginning and 316.7MB in the end (delta: 51.2MB). Peak memory consumption was 287.1MB. Max. memory is 8.0GB. * TraceAbstraction took 23535.65ms. Allocated memory was 672.1MB in the beginning and 873.5MB in the end (delta: 201.3MB). Free memory was 316.2MB in the beginning and 560.0MB in the end (delta: -243.8MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 10992]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 10595. Possible FailurePath: [L5971] static unsigned int vhost_zcopy_mask ; [L9348] static int experimental_zcopytx ; [L10590-L10593] static struct file_operations const vhost_net_fops = {& __this_module, & noop_llseek, 0, 0, 0, 0, 0, 0, & vhost_net_ioctl, & vhost_net_compat_ioctl, 0, & vhost_net_open, 0, & vhost_net_release, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L10594-L10595] static struct miscdevice vhost_net_misc = {238, "vhost-net", & vhost_net_fops, {0, 0}, 0, 0, 0, (unsigned short)0}; [L10620] int LDV_IN_INTERRUPT ; [L11002] static int ldv_mutex_cred_guard_mutex ; [L11109] static int ldv_mutex_lock ; [L11216] static int ldv_mutex_mtx ; [L11323] static int ldv_mutex_mutex ; [L10623] struct inode *var_group1 ; [L10624] struct file *var_group2 ; [L10625] unsigned int var_vhost_net_ioctl_27_p1 ; [L10626] unsigned long var_vhost_net_ioctl_27_p2 ; [L10627] unsigned int var_vhost_net_compat_ioctl_28_p1 ; [L10628] unsigned long var_vhost_net_compat_ioctl_28_p2 ; [L10629] int res_vhost_net_open_13 ; [L10630] int ldv_s_vhost_net_fops_file_operations ; [L10631] int tmp ; [L10632] int tmp___0 ; [L10633] int tmp___1 ; [L10635] ldv_s_vhost_net_fops_file_operations = 0 [L10636] LDV_IN_INTERRUPT = 1 VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=0, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=0, ldv_mutex_lock=0, ldv_mutex_mtx=0, ldv_mutex_mutex=0, ldv_s_vhost_net_fops_file_operations=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10637] CALL ldv_initialize() VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=0, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=0, ldv_mutex_lock=0, ldv_mutex_mtx=0, ldv_mutex_mutex=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L11433] ldv_mutex_cred_guard_mutex = 1 [L11434] ldv_mutex_lock = 1 [L11435] ldv_mutex_mtx = 1 [L11436] ldv_mutex_mutex = 1 [L10637] RET ldv_initialize() VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=0, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10638] FCALL ldv_handler_precall() VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=0, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10639] CALL, EXPR vhost_net_init() VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=0, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10598] int tmp ; VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=0, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10600] COND FALSE !(experimental_zcopytx != 0) VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=0, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10604] CALL, EXPR misc_register(& vhost_net_misc) VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=0, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, arg0={216:0}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L11595] return __VERIFIER_nondet_int(); [L10604] RET, EXPR misc_register(& vhost_net_misc) VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=0, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, misc_register(& vhost_net_misc)=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10604] tmp = misc_register(& vhost_net_misc) [L10605] return (tmp); [L10639] RET, EXPR vhost_net_init() VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=0, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, vhost_net_fops={215:0}, vhost_net_init()=0, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10639] tmp = vhost_net_init() [L10640] COND FALSE !(tmp != 0) VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=0, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, tmp=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10682] tmp___1 = __VERIFIER_nondet_int() [L10683] COND TRUE tmp___1 != 0 || ldv_s_vhost_net_fops_file_operations != 0 [L10646] tmp___0 = __VERIFIER_nondet_int() [L10648] case 0: [L10661] case 1: [L10669] case 2: VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=0, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, tmp=0, tmp___0=2, tmp___1=-2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10670] FCALL ldv_handler_precall() VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=0, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, tmp=0, tmp___0=2, tmp___1=-2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10671] CALL vhost_net_ioctl(var_group2, var_vhost_net_ioctl_27_p1, var_vhost_net_ioctl_27_p2) VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(arg)=0, \old(ioctl)=44802, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=1, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, f={44813:-203}, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10521] struct vhost_net *n ; [L10522] void *argp ; [L10523] u64 *featurep ; [L10524] struct vhost_vring_file backend ; [L10525] u64 features ; [L10526] int r ; [L10527] unsigned long tmp ; [L10528] long tmp___0 ; [L10529] int tmp___1 ; [L10530] unsigned long tmp___2 ; [L10531] int tmp___3 ; [L10532] long tmp___4 ; [L10533] long tmp___5 ; [L10535] EXPR f->private_data [L10535] n = (struct vhost_net *)f->private_data [L10536] argp = (void *)arg [L10537] featurep = (u64 *)argp [L10539] case 1074310960U: [L10547] case 2148052736U: [L10555] case 1074310912U: [L10567] case 44802U: VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(arg)=0, \old(ioctl)=44802, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=1, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, arg=0, argp={0:0}, backend={218:0}, experimental_zcopytx=0, f={44813:-203}, f={44813:-203}, featurep={0:0}, features={219:0}, ioctl=44802, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, n={44814:-8804}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10568] CALL vhost_net_reset_owner(n) VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=1, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, n={44814:-8804}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10445] struct socket *tx_sock ; [L10446] struct socket *rx_sock ; [L10447] long err ; [L10449] tx_sock = 0 [L10450] rx_sock = 0 VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=1, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, n={44814:-8804}, n={44814:-8804}, rx_sock={217:0}, tx_sock={220:0}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10451] CALL ldv_mutex_lock_66(& n->dev.mutex) VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=1, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_func_arg1={44814:-8796}, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10919] CALL ldv_mutex_lock_mutex(ldv_func_arg1) VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=1, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, lock={44814:-8796}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L11361] COND TRUE ldv_mutex_mutex == 1 VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=1, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, lock={44814:-8796}, lock={44814:-8796}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L11365] ldv_mutex_mutex = 2 [L10919] RET ldv_mutex_lock_mutex(ldv_func_arg1) VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=1, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_func_arg1={44814:-8796}, ldv_func_arg1={44814:-8796}, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10920] FCALL mutex_lock(ldv_func_arg1) VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=1, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_func_arg1={44814:-8796}, ldv_func_arg1={44814:-8796}, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10451] RET ldv_mutex_lock_66(& n->dev.mutex) VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=1, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, n={44814:-8804}, n={44814:-8804}, rx_sock={217:0}, tx_sock={220:0}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10452] CALL, EXPR vhost_dev_check_owner(& n->dev) VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=1, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, dev={44814:-8804}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L6410] struct task_struct *tmp ; VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=1, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, dev={44814:-8804}, dev={44814:-8804}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L6412] CALL, EXPR get_current() VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=1, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L5283] struct task_struct *pfo_ret__ ; [L5286] case 1UL: [L5289] case 2UL: [L5292] case 4UL: [L5295] case 8UL: [L5302] return (pfo_ret__); [L6412] RET, EXPR get_current() VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=1, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, dev={44814:-8804}, dev={44814:-8804}, experimental_zcopytx=0, get_current()={44820:-4}, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L6412] tmp = get_current() [L6413] EXPR dev->mm [L6413] EXPR tmp->mm [L6413] return ((unsigned long )dev->mm == (unsigned long )tmp->mm ? 0L : -1L); [L10452] RET, EXPR vhost_dev_check_owner(& n->dev) VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=1, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, n={44814:-8804}, n={44814:-8804}, rx_sock={217:0}, tx_sock={220:0}, vhost_dev_check_owner(& n->dev)=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10452] err = vhost_dev_check_owner(& n->dev) [L10453] COND FALSE !(err != 0L) VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=1, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, err=0, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, n={44814:-8804}, n={44814:-8804}, rx_sock={217:0}, tx_sock={220:0}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10457] CALL vhost_net_stop(n, & tx_sock, & rx_sock) VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=2, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, n={44814:-8804}, rx_sock={217:0}, tx_sock={220:0}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10183] CALL vhost_net_stop_vq(n, (struct vhost_virtqueue *)(& n->vqs) + 1UL) VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=2, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, n={44814:-8804}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0, vq={44814:-4}] [L10155] struct socket *sock ; [L10156] bool __warned ; [L10157] int tmp ; [L10158] int tmp___0 ; VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=2, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, n={44814:-8804}, n={44814:-8804}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0, vq={44814:-4}, vq={44814:-4}] [L10160] CALL ldv_mutex_lock_56(& vq->mutex) VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=2, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_func_arg1={44814:0}, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10839] CALL ldv_mutex_lock_mutex(ldv_func_arg1) VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=2, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, lock={44814:0}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L11361] COND FALSE !(ldv_mutex_mutex == 1) VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=2, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, lock={44814:0}, lock={44814:0}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L11363] CALL ldv_error() VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=2, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10992] reach_error() VAL [LDV_IN_INTERRUPT=1, \old(LDV_IN_INTERRUPT)=0, \old(ldv_mutex_cred_guard_mutex)=0, \old(ldv_mutex_lock)=0, \old(ldv_mutex_mtx)=0, \old(ldv_mutex_mutex)=2, \old(vhost_zcopy_mask)=0, __this_module={44808:44807}, experimental_zcopytx=0, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 303 procedures, 2750 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.4s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 mSolverCounterUnknown, 13513 SdHoareTripleChecker+Valid, 20.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13513 mSDsluCounter, 19445 SdHoareTripleChecker+Invalid, 19.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3597 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1421 IncrementalHoareTripleChecker+Invalid, 1435 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 15848 mSDtfsCounter, 1421 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3126occurred in iteration=4, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 240 NumberOfCodeBlocks, 240 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 258 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-04-01 01:03:23,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...