./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3d776a54fbebbd358d59ab0126298feae1e40360b6fb5e6158cd54ba5ef877f7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 10:16:30,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 10:16:30,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 10:16:30,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 10:16:30,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 10:16:30,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 10:16:30,384 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 10:16:30,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 10:16:30,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 10:16:30,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 10:16:30,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 10:16:30,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 10:16:30,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 10:16:30,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 10:16:30,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 10:16:30,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 10:16:30,410 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 10:16:30,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 10:16:30,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 10:16:30,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 10:16:30,420 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 10:16:30,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 10:16:30,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 10:16:30,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 10:16:30,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 10:16:30,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 10:16:30,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 10:16:30,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 10:16:30,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 10:16:30,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 10:16:30,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 10:16:30,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 10:16:30,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 10:16:30,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 10:16:30,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 10:16:30,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 10:16:30,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 10:16:30,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 10:16:30,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 10:16:30,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 10:16:30,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 10:16:30,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 10:16:30,448 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 10:16:30,480 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 10:16:30,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 10:16:30,481 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 10:16:30,481 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 10:16:30,482 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 10:16:30,482 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 10:16:30,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 10:16:30,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 10:16:30,483 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 10:16:30,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 10:16:30,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 10:16:30,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 10:16:30,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 10:16:30,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 10:16:30,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 10:16:30,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 10:16:30,486 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 10:16:30,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 10:16:30,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 10:16:30,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 10:16:30,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 10:16:30,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:16:30,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 10:16:30,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 10:16:30,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 10:16:30,488 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 10:16:30,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 10:16:30,488 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 10:16:30,488 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 10:16:30,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 10:16:30,489 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d776a54fbebbd358d59ab0126298feae1e40360b6fb5e6158cd54ba5ef877f7 [2022-07-21 10:16:30,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 10:16:30,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 10:16:30,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 10:16:30,842 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 10:16:30,844 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 10:16:30,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i [2022-07-21 10:16:30,903 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fa8bb853/165098c64f3048648ae5ed9a60f5694e/FLAGf011d4b34 [2022-07-21 10:16:31,817 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 10:16:31,817 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i [2022-07-21 10:16:31,871 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fa8bb853/165098c64f3048648ae5ed9a60f5694e/FLAGf011d4b34 [2022-07-21 10:16:32,258 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fa8bb853/165098c64f3048648ae5ed9a60f5694e [2022-07-21 10:16:32,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 10:16:32,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 10:16:32,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 10:16:32,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 10:16:32,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 10:16:32,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:16:32" (1/1) ... [2022-07-21 10:16:32,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21c19d60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:32, skipping insertion in model container [2022-07-21 10:16:32,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:16:32" (1/1) ... [2022-07-21 10:16:32,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 10:16:32,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 10:16:35,551 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i[462796,462809] [2022-07-21 10:16:35,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:16:35,758 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 10:16:36,200 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i[462796,462809] [2022-07-21 10:16:36,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:16:36,445 INFO L208 MainTranslator]: Completed translation [2022-07-21 10:16:36,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36 WrapperNode [2022-07-21 10:16:36,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 10:16:36,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 10:16:36,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 10:16:36,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 10:16:36,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36" (1/1) ... [2022-07-21 10:16:36,587 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36" (1/1) ... [2022-07-21 10:16:36,832 INFO L137 Inliner]: procedures = 445, calls = 3482, calls flagged for inlining = 226, calls inlined = 196, statements flattened = 7816 [2022-07-21 10:16:36,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 10:16:36,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 10:16:36,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 10:16:36,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 10:16:36,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36" (1/1) ... [2022-07-21 10:16:36,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36" (1/1) ... [2022-07-21 10:16:36,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36" (1/1) ... [2022-07-21 10:16:36,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36" (1/1) ... [2022-07-21 10:16:37,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36" (1/1) ... [2022-07-21 10:16:37,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36" (1/1) ... [2022-07-21 10:16:37,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36" (1/1) ... [2022-07-21 10:16:37,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 10:16:37,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 10:16:37,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 10:16:37,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 10:16:37,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36" (1/1) ... [2022-07-21 10:16:37,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:16:37,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:16:37,393 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) [2022-07-21 10:16:37,471 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 [2022-07-21 10:16:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure vq_access_ok [2022-07-21 10:16:37,527 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_access_ok [2022-07-21 10:16:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2022-07-21 10:16:37,527 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2022-07-21 10:16:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-21 10:16:37,527 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-21 10:16:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 10:16:37,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 10:16:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-07-21 10:16:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_release_fabric_acl [2022-07-21 10:16:37,527 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_release_fabric_acl [2022-07-21 10:16:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 10:16:37,527 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 10:16:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_access_ok [2022-07-21 10:16:37,528 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_access_ok [2022-07-21 10:16:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_close_session [2022-07-21 10:16:37,528 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_close_session [2022-07-21 10:16:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2022-07-21 10:16:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_queue [2022-07-21 10:16:37,528 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_queue [2022-07-21 10:16:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 10:16:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tcm_vhost_mutex [2022-07-21 10:16:37,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tcm_vhost_mutex [2022-07-21 10:16:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-21 10:16:37,528 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-21 10:16:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 10:16:37,528 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 10:16:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2022-07-21 10:16:37,529 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2022-07-21 10:16:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure next_desc [2022-07-21 10:16:37,529 INFO L138 BoogieDeclarations]: Found implementation of procedure next_desc [2022-07-21 10:16:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_drop_tpg [2022-07-21 10:16:37,529 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_drop_tpg [2022-07-21 10:16:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-07-21 10:16:37,529 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-07-21 10:16:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-07-21 10:16:37,529 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-07-21 10:16:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_scsi_open [2022-07-21 10:16:37,529 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_scsi_open [2022-07-21 10:16:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 10:16:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-21 10:16:37,530 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-21 10:16:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_has_feature [2022-07-21 10:16:37,530 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_has_feature [2022-07-21 10:16:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-07-21 10:16:37,530 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-07-21 10:16:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 10:16:37,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 10:16:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 10:16:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 10:16:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 10:16:37,530 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 10:16:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_init [2022-07-21 10:16:37,530 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_init [2022-07-21 10:16:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-07-21 10:16:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-21 10:16:37,531 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-21 10:16:37,531 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_scsi_complete_cmd [2022-07-21 10:16:37,531 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_scsi_complete_cmd [2022-07-21 10:16:37,531 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-21 10:16:37,533 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-21 10:16:37,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex [2022-07-21 10:16:37,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex [2022-07-21 10:16:37,533 INFO L130 BoogieDeclarations]: Found specification of procedure translate_desc [2022-07-21 10:16:37,534 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_desc [2022-07-21 10:16:37,534 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_put [2022-07-21 10:16:37,534 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_put [2022-07-21 10:16:37,534 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-07-21 10:16:37,534 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-07-21 10:16:37,534 INFO L130 BoogieDeclarations]: Found specification of procedure sas_get_pr_transport_id [2022-07-21 10:16:37,534 INFO L138 BoogieDeclarations]: Found implementation of procedure sas_get_pr_transport_id [2022-07-21 10:16:37,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tv_tpg_mutex [2022-07-21 10:16:37,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tv_tpg_mutex [2022-07-21 10:16:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 10:16:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 10:16:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 10:16:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 10:16:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2022-07-21 10:16:37,536 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2022-07-21 10:16:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 10:16:37,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 10:16:37,537 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-21 10:16:37,537 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-21 10:16:37,537 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_seq_done [2022-07-21 10:16:37,537 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_seq_done [2022-07-21 10:16:37,537 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_disable_notify [2022-07-21 10:16:37,537 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_disable_notify [2022-07-21 10:16:37,537 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 10:16:37,538 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 10:16:37,538 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_update_used_flags [2022-07-21 10:16:37,538 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_update_used_flags [2022-07-21 10:16:37,539 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2022-07-21 10:16:37,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2022-07-21 10:16:37,539 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2022-07-21 10:16:37,539 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2022-07-21 10:16:37,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex [2022-07-21 10:16:37,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex [2022-07-21 10:16:37,540 INFO L130 BoogieDeclarations]: Found specification of procedure log_access_ok [2022-07-21 10:16:37,540 INFO L138 BoogieDeclarations]: Found implementation of procedure log_access_ok [2022-07-21 10:16:37,541 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-21 10:16:37,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-21 10:16:37,541 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_alloc_fabric_acl [2022-07-21 10:16:37,541 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_alloc_fabric_acl [2022-07-21 10:16:37,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_tcm_vhost_mutex [2022-07-21 10:16:37,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_tcm_vhost_mutex [2022-07-21 10:16:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_scsi_ioctl [2022-07-21 10:16:37,555 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_scsi_ioctl [2022-07-21 10:16:37,556 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-21 10:16:37,556 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-21 10:16:37,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 10:16:37,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 10:16:37,556 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_drop_tport [2022-07-21 10:16:37,557 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_drop_tport [2022-07-21 10:16:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-07-21 10:16:37,557 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-07-21 10:16:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-21 10:16:37,557 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-21 10:16:37,558 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_free_iovecs [2022-07-21 10:16:37,558 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_free_iovecs [2022-07-21 10:16:37,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 10:16:37,561 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_flush [2022-07-21 10:16:37,561 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_flush [2022-07-21 10:16:37,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 10:16:37,563 INFO L130 BoogieDeclarations]: Found specification of procedure log_write [2022-07-21 10:16:37,563 INFO L138 BoogieDeclarations]: Found implementation of procedure log_write [2022-07-21 10:16:37,564 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-21 10:16:37,564 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-21 10:16:37,564 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_reset [2022-07-21 10:16:37,567 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_reset [2022-07-21 10:16:37,567 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-07-21 10:16:37,567 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-07-21 10:16:37,567 INFO L130 BoogieDeclarations]: Found specification of procedure vq_log_access_ok [2022-07-21 10:16:37,567 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_log_access_ok [2022-07-21 10:16:37,567 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 10:16:37,567 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 10:16:37,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 10:16:37,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 10:16:37,567 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-21 10:16:37,567 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-21 10:16:37,568 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_queue [2022-07-21 10:16:37,568 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_queue [2022-07-21 10:16:37,568 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-21 10:16:37,568 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-21 10:16:37,568 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-07-21 10:16:37,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-07-21 10:16:37,568 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_fget [2022-07-21 10:16:37,568 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_fget [2022-07-21 10:16:37,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 10:16:37,568 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 10:16:37,568 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 10:16:37,568 INFO L130 BoogieDeclarations]: Found specification of procedure vq_memory_access_ok [2022-07-21 10:16:37,568 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_memory_access_ok [2022-07-21 10:16:37,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 10:16:37,568 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-07-21 10:16:37,569 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-07-21 10:16:37,569 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_release_cmd [2022-07-21 10:16:37,569 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_release_cmd [2022-07-21 10:16:37,569 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_set_default_node_attrs [2022-07-21 10:16:37,569 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_set_default_node_attrs [2022-07-21 10:16:37,569 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_drop_nexus [2022-07-21 10:16:37,569 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_drop_nexus [2022-07-21 10:16:37,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 10:16:37,569 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_dev_cleanup [2022-07-21 10:16:37,569 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_dev_cleanup [2022-07-21 10:16:37,569 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-21 10:16:37,569 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-21 10:16:37,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_tv_tpg_mutex [2022-07-21 10:16:37,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_tv_tpg_mutex [2022-07-21 10:16:37,570 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-21 10:16:37,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-21 10:16:37,570 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-21 10:16:37,570 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-21 10:16:37,570 INFO L130 BoogieDeclarations]: Found specification of procedure sas_get_fabric_proto_ident [2022-07-21 10:16:37,570 INFO L138 BoogieDeclarations]: Found implementation of procedure sas_get_fabric_proto_ident [2022-07-21 10:16:37,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-07-21 10:16:37,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-07-21 10:16:37,570 INFO L130 BoogieDeclarations]: Found specification of procedure get_user_pages_fast [2022-07-21 10:16:37,570 INFO L138 BoogieDeclarations]: Found implementation of procedure get_user_pages_fast [2022-07-21 10:16:37,570 INFO L130 BoogieDeclarations]: Found specification of procedure transport_generic_free_cmd [2022-07-21 10:16:37,570 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_generic_free_cmd [2022-07-21 10:16:37,570 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_scsi_deregister [2022-07-21 10:16:37,570 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_scsi_deregister [2022-07-21 10:16:37,570 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-21 10:16:37,572 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-21 10:16:37,572 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_lock [2022-07-21 10:16:37,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_lock [2022-07-21 10:16:37,572 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_command_size [2022-07-21 10:16:37,572 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_command_size [2022-07-21 10:16:37,572 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_dump_proto_id [2022-07-21 10:16:37,572 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_dump_proto_id [2022-07-21 10:16:37,572 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_fileget [2022-07-21 10:16:37,573 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_fileget [2022-07-21 10:16:37,573 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 10:16:37,573 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 10:16:37,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 10:16:37,573 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_unlock [2022-07-21 10:16:37,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock [2022-07-21 10:16:37,573 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_scsi_clear_endpoint [2022-07-21 10:16:37,574 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_scsi_clear_endpoint [2022-07-21 10:16:37,574 INFO L130 BoogieDeclarations]: Found specification of procedure mmput [2022-07-21 10:16:37,574 INFO L138 BoogieDeclarations]: Found implementation of procedure mmput [2022-07-21 10:16:37,574 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-21 10:16:37,574 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-21 10:16:37,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 10:16:37,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 10:16:37,574 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_scsi_flush_vq [2022-07-21 10:16:37,575 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_scsi_flush_vq [2022-07-21 10:16:37,575 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-07-21 10:16:37,575 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-07-21 10:16:37,575 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_cpu_idle [2022-07-21 10:16:37,575 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_cpu_idle [2022-07-21 10:16:37,575 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-21 10:16:37,575 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-21 10:16:37,575 INFO L130 BoogieDeclarations]: Found specification of procedure sas_parse_pr_out_transport_id [2022-07-21 10:16:37,576 INFO L138 BoogieDeclarations]: Found implementation of procedure sas_parse_pr_out_transport_id [2022-07-21 10:16:37,576 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_signal [2022-07-21 10:16:37,576 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_signal [2022-07-21 10:16:37,576 INFO L130 BoogieDeclarations]: Found specification of procedure utsname [2022-07-21 10:16:37,576 INFO L138 BoogieDeclarations]: Found implementation of procedure utsname [2022-07-21 10:16:37,576 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_stop [2022-07-21 10:16:37,576 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_stop [2022-07-21 10:16:37,576 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-07-21 10:16:37,577 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-07-21 10:16:37,577 INFO L130 BoogieDeclarations]: Found specification of procedure memory_access_ok [2022-07-21 10:16:37,577 INFO L138 BoogieDeclarations]: Found implementation of procedure memory_access_ok [2022-07-21 10:16:37,577 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-07-21 10:16:37,577 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-07-21 10:16:37,577 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_add_used [2022-07-21 10:16:37,577 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_add_used [2022-07-21 10:16:37,577 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-21 10:16:37,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-21 10:16:37,578 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-21 10:16:37,578 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-21 10:16:37,578 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-07-21 10:16:37,578 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-07-21 10:16:37,578 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_drop_nodeacl [2022-07-21 10:16:37,578 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_drop_nodeacl [2022-07-21 10:16:37,578 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_flush [2022-07-21 10:16:37,579 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_flush [2022-07-21 10:16:37,579 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_scsi_release [2022-07-21 10:16:37,579 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_scsi_release [2022-07-21 10:16:37,579 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_signal [2022-07-21 10:16:37,579 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_signal [2022-07-21 10:16:37,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 10:16:37,579 INFO L130 BoogieDeclarations]: Found specification of procedure sas_get_pr_transport_id_len [2022-07-21 10:16:37,579 INFO L138 BoogieDeclarations]: Found implementation of procedure sas_get_pr_transport_id_len [2022-07-21 10:16:37,595 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_port_link [2022-07-21 10:16:37,595 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_port_link [2022-07-21 10:16:38,564 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 10:16:38,567 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 10:16:43,967 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7455: assume #t~switch210;#res := ~ret~1; [2022-07-21 10:16:43,967 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7455: assume !#t~switch210;#t~switch210 := #t~switch210 || 4 == ~size; [2022-07-21 10:16:43,967 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7488: assume 0 != ~tmp___1~4;#res := ~ret~1; [2022-07-21 10:16:43,967 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7488: assume !(0 != ~tmp___1~4);#res := ~ret~1; [2022-07-21 10:16:43,967 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7449: havoc #t~switch210; [2022-07-21 10:16:43,967 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7474: SUMMARY for call #t~ret211 := ldv__builtin_expect((if 0 != ~ret~1 then 1 else 0), 0); srcloc: null [2022-07-21 10:16:43,968 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7470: assume #t~switch210; [2022-07-21 10:16:43,968 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7470: assume !#t~switch210;#t~switch210 := #t~switch210 || 16 == ~size; [2022-07-21 10:16:43,968 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7474-1: assume -9223372036854775808 <= #t~ret211 && #t~ret211 <= 9223372036854775807;~tmp___0~9 := #t~ret211;havoc #t~ret211; [2022-07-21 10:16:43,968 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume #t~switch210;#res := ~ret~1; [2022-07-21 10:16:43,968 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7497-1: ~tmp___2~3 := #t~ret213;havoc #t~ret213;#res := (if ~tmp___2~3 % 18446744073709551616 % 4294967296 <= 2147483647 then ~tmp___2~3 % 18446744073709551616 % 4294967296 else ~tmp___2~3 % 18446744073709551616 % 4294967296 - 4294967296); [2022-07-21 10:16:43,968 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7497: SUMMARY for call #t~ret213 := copy_user_generic(~dst.base, ~dst.offset, ~src.base, ~src.offset, ~size); srcloc: null [2022-07-21 10:16:43,968 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !#t~switch210;#t~switch210 := #t~switch210 || 2 == ~size; [2022-07-21 10:16:43,968 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7460: assume #t~switch210;#res := ~ret~1; [2022-07-21 10:16:43,968 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7460: assume !#t~switch210;#t~switch210 := #t~switch210 || 8 == ~size; [2022-07-21 10:16:43,968 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7487-1: assume -9223372036854775808 <= #t~ret212 && #t~ret212 <= 9223372036854775807;~tmp___1~4 := #t~ret212;havoc #t~ret212; [2022-07-21 10:16:43,968 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7487: SUMMARY for call #t~ret212 := ldv__builtin_expect((if 0 != ~ret~1 then 1 else 0), 0); srcloc: null [2022-07-21 10:16:43,968 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7483: assume #t~switch210; [2022-07-21 10:16:43,968 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7483: assume !#t~switch210;#t~switch210 := true; [2022-07-21 10:16:43,968 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7475: assume 0 != ~tmp___0~9;#res := ~ret~1; [2022-07-21 10:16:43,969 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7475: assume !(0 != ~tmp___0~9);#res := ~ret~1; [2022-07-21 10:16:43,969 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7496: assume #t~switch210; [2022-07-21 10:16:43,969 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7496: assume !#t~switch210; [2022-07-21 10:16:43,969 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7465: assume #t~switch210;#res := ~ret~1; [2022-07-21 10:16:43,969 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7465: assume !#t~switch210;#t~switch210 := #t~switch210 || 10 == ~size; [2022-07-21 10:16:48,515 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 10:16:48,532 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 10:16:48,532 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 10:16:48,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:16:48 BoogieIcfgContainer [2022-07-21 10:16:48,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 10:16:48,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 10:16:48,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 10:16:48,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 10:16:48,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:16:32" (1/3) ... [2022-07-21 10:16:48,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1412a5af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:16:48, skipping insertion in model container [2022-07-21 10:16:48,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36" (2/3) ... [2022-07-21 10:16:48,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1412a5af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:16:48, skipping insertion in model container [2022-07-21 10:16:48,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:16:48" (3/3) ... [2022-07-21 10:16:48,544 INFO L111 eAbstractionObserver]: Analyzing ICFG main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i [2022-07-21 10:16:48,557 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 10:16:48,557 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 10:16:48,649 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 10:16:48,655 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@18ae3655, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@af942b5 [2022-07-21 10:16:48,655 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 10:16:48,670 INFO L276 IsEmpty]: Start isEmpty. Operand has 2457 states, 1699 states have (on average 1.3507945850500294) internal successors, (2295), 1749 states have internal predecessors, (2295), 642 states have call successors, (642), 114 states have call predecessors, (642), 114 states have return successors, (642), 630 states have call predecessors, (642), 642 states have call successors, (642) [2022-07-21 10:16:48,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-21 10:16:48,678 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:16:48,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:16:48,679 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:16:48,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:16:48,683 INFO L85 PathProgramCache]: Analyzing trace with hash 450761681, now seen corresponding path program 1 times [2022-07-21 10:16:48,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:16:48,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555870229] [2022-07-21 10:16:48,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:16:48,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:16:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:49,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:16:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:49,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:16:49,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:16:49,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555870229] [2022-07-21 10:16:49,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555870229] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:16:49,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:16:49,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:16:49,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330422747] [2022-07-21 10:16:49,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:16:49,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:16:49,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:16:49,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:16:49,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:16:49,223 INFO L87 Difference]: Start difference. First operand has 2457 states, 1699 states have (on average 1.3507945850500294) internal successors, (2295), 1749 states have internal predecessors, (2295), 642 states have call successors, (642), 114 states have call predecessors, (642), 114 states have return successors, (642), 630 states have call predecessors, (642), 642 states have call successors, (642) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:16:49,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:16:49,506 INFO L93 Difference]: Finished difference Result 4893 states and 7240 transitions. [2022-07-21 10:16:49,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:16:49,508 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-07-21 10:16:49,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:16:49,543 INFO L225 Difference]: With dead ends: 4893 [2022-07-21 10:16:49,543 INFO L226 Difference]: Without dead ends: 2441 [2022-07-21 10:16:49,634 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 [2022-07-21 10:16:49,641 INFO L413 NwaCegarLoop]: 3555 mSDtfsCounter, 3546 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3546 SdHoareTripleChecker+Valid, 3555 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:16:49,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3546 Valid, 3555 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:16:49,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2441 states. [2022-07-21 10:16:49,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2441 to 2441. [2022-07-21 10:16:49,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2441 states, 1686 states have (on average 1.3422301304863582) internal successors, (2263), 1733 states have internal predecessors, (2263), 641 states have call successors, (641), 114 states have call predecessors, (641), 113 states have return successors, (630), 618 states have call predecessors, (630), 630 states have call successors, (630) [2022-07-21 10:16:49,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 3534 transitions. [2022-07-21 10:16:49,848 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 3534 transitions. Word has length 15 [2022-07-21 10:16:49,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:16:49,849 INFO L495 AbstractCegarLoop]: Abstraction has 2441 states and 3534 transitions. [2022-07-21 10:16:49,850 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:16:49,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 3534 transitions. [2022-07-21 10:16:49,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-21 10:16:49,851 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:16:49,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:16:49,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 10:16:49,852 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:16:49,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:16:49,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1087560763, now seen corresponding path program 1 times [2022-07-21 10:16:49,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:16:49,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816301636] [2022-07-21 10:16:49,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:16:49,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:16:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:50,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:16:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:50,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:16:50,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:16:50,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816301636] [2022-07-21 10:16:50,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816301636] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:16:50,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:16:50,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:16:50,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426098447] [2022-07-21 10:16:50,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:16:50,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:16:50,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:16:50,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:16:50,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:16:50,017 INFO L87 Difference]: Start difference. First operand 2441 states and 3534 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:16:50,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:16:50,129 INFO L93 Difference]: Finished difference Result 2443 states and 3535 transitions. [2022-07-21 10:16:50,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:16:50,130 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-07-21 10:16:50,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:16:50,146 INFO L225 Difference]: With dead ends: 2443 [2022-07-21 10:16:50,147 INFO L226 Difference]: Without dead ends: 2440 [2022-07-21 10:16:50,150 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 [2022-07-21 10:16:50,151 INFO L413 NwaCegarLoop]: 3531 mSDtfsCounter, 3521 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3521 SdHoareTripleChecker+Valid, 3531 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:16:50,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3521 Valid, 3531 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:16:50,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2440 states. [2022-07-21 10:16:50,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2440 to 2440. [2022-07-21 10:16:50,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2440 states, 1686 states have (on average 1.3416370106761566) internal successors, (2262), 1732 states have internal predecessors, (2262), 640 states have call successors, (640), 114 states have call predecessors, (640), 113 states have return successors, (630), 618 states have call predecessors, (630), 630 states have call successors, (630) [2022-07-21 10:16:50,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2440 states to 2440 states and 3532 transitions. [2022-07-21 10:16:50,282 INFO L78 Accepts]: Start accepts. Automaton has 2440 states and 3532 transitions. Word has length 16 [2022-07-21 10:16:50,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:16:50,282 INFO L495 AbstractCegarLoop]: Abstraction has 2440 states and 3532 transitions. [2022-07-21 10:16:50,282 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:16:50,282 INFO L276 IsEmpty]: Start isEmpty. Operand 2440 states and 3532 transitions. [2022-07-21 10:16:50,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-21 10:16:50,283 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:16:50,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:16:50,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 10:16:50,284 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:16:50,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:16:50,284 INFO L85 PathProgramCache]: Analyzing trace with hash -646499308, now seen corresponding path program 1 times [2022-07-21 10:16:50,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:16:50,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526257802] [2022-07-21 10:16:50,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:16:50,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:16:50,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:50,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:16:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:50,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:16:50,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:16:50,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526257802] [2022-07-21 10:16:50,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526257802] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:16:50,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:16:50,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:16:50,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318694930] [2022-07-21 10:16:50,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:16:50,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:16:50,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:16:50,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:16:50,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:16:50,429 INFO L87 Difference]: Start difference. First operand 2440 states and 3532 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:16:50,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:16:50,534 INFO L93 Difference]: Finished difference Result 2442 states and 3533 transitions. [2022-07-21 10:16:50,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:16:50,535 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-07-21 10:16:50,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:16:50,549 INFO L225 Difference]: With dead ends: 2442 [2022-07-21 10:16:50,549 INFO L226 Difference]: Without dead ends: 2439 [2022-07-21 10:16:50,552 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 [2022-07-21 10:16:50,553 INFO L413 NwaCegarLoop]: 3529 mSDtfsCounter, 3518 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3518 SdHoareTripleChecker+Valid, 3529 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:16:50,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3518 Valid, 3529 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:16:50,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2022-07-21 10:16:50,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2439. [2022-07-21 10:16:50,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 1686 states have (on average 1.341043890865955) internal successors, (2261), 1731 states have internal predecessors, (2261), 639 states have call successors, (639), 114 states have call predecessors, (639), 113 states have return successors, (630), 618 states have call predecessors, (630), 630 states have call successors, (630) [2022-07-21 10:16:50,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 3530 transitions. [2022-07-21 10:16:50,669 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 3530 transitions. Word has length 17 [2022-07-21 10:16:50,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:16:50,670 INFO L495 AbstractCegarLoop]: Abstraction has 2439 states and 3530 transitions. [2022-07-21 10:16:50,670 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:16:50,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 3530 transitions. [2022-07-21 10:16:50,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-21 10:16:50,672 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:16:50,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:16:50,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 10:16:50,673 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:16:50,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:16:50,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1432218206, now seen corresponding path program 1 times [2022-07-21 10:16:50,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:16:50,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201828226] [2022-07-21 10:16:50,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:16:50,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:16:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:50,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:16:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:50,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:16:50,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:16:50,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201828226] [2022-07-21 10:16:50,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201828226] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:16:50,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:16:50,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:16:50,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671630393] [2022-07-21 10:16:50,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:16:50,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:16:50,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:16:50,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:16:50,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:16:50,848 INFO L87 Difference]: Start difference. First operand 2439 states and 3530 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:16:51,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:16:51,081 INFO L93 Difference]: Finished difference Result 5743 states and 8187 transitions. [2022-07-21 10:16:51,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:16:51,082 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-07-21 10:16:51,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:16:51,106 INFO L225 Difference]: With dead ends: 5743 [2022-07-21 10:16:51,106 INFO L226 Difference]: Without dead ends: 3343 [2022-07-21 10:16:51,119 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 [2022-07-21 10:16:51,120 INFO L413 NwaCegarLoop]: 3831 mSDtfsCounter, 1910 mSDsluCounter, 2776 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1910 SdHoareTripleChecker+Valid, 6607 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:16:51,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1910 Valid, 6607 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:16:51,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3343 states. [2022-07-21 10:16:51,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3343 to 3336. [2022-07-21 10:16:51,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 2300 states have (on average 1.3169565217391304) internal successors, (3029), 2367 states have internal predecessors, (3029), 838 states have call successors, (838), 200 states have call predecessors, (838), 197 states have return successors, (832), 806 states have call predecessors, (832), 826 states have call successors, (832) [2022-07-21 10:16:51,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4699 transitions. [2022-07-21 10:16:51,335 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4699 transitions. Word has length 18 [2022-07-21 10:16:51,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:16:51,335 INFO L495 AbstractCegarLoop]: Abstraction has 3336 states and 4699 transitions. [2022-07-21 10:16:51,335 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:16:51,336 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4699 transitions. [2022-07-21 10:16:51,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-21 10:16:51,336 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:16:51,337 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:16:51,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 10:16:51,337 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:16:51,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:16:51,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1447956567, now seen corresponding path program 1 times [2022-07-21 10:16:51,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:16:51,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543592037] [2022-07-21 10:16:51,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:16:51,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:16:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:51,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:16:51,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:51,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:16:51,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:16:51,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543592037] [2022-07-21 10:16:51,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543592037] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:16:51,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:16:51,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:16:51,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780676501] [2022-07-21 10:16:51,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:16:51,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:16:51,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:16:51,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:16:51,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:16:51,464 INFO L87 Difference]: Start difference. First operand 3336 states and 4699 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:16:51,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:16:51,606 INFO L93 Difference]: Finished difference Result 3371 states and 4726 transitions. [2022-07-21 10:16:51,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:16:51,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-07-21 10:16:51,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:16:51,628 INFO L225 Difference]: With dead ends: 3371 [2022-07-21 10:16:51,629 INFO L226 Difference]: Without dead ends: 3367 [2022-07-21 10:16:51,632 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 [2022-07-21 10:16:51,633 INFO L413 NwaCegarLoop]: 3524 mSDtfsCounter, 3444 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3444 SdHoareTripleChecker+Valid, 3608 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:16:51,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3444 Valid, 3608 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:16:51,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3367 states. [2022-07-21 10:16:51,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3367 to 3363. [2022-07-21 10:16:51,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3363 states, 2321 states have (on average 1.3136579060749678) internal successors, (3049), 2386 states have internal predecessors, (3049), 836 states have call successors, (836), 208 states have call predecessors, (836), 205 states have return successors, (832), 806 states have call predecessors, (832), 826 states have call successors, (832) [2022-07-21 10:16:51,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3363 states to 3363 states and 4717 transitions. [2022-07-21 10:16:51,781 INFO L78 Accepts]: Start accepts. Automaton has 3363 states and 4717 transitions. Word has length 19 [2022-07-21 10:16:51,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:16:51,781 INFO L495 AbstractCegarLoop]: Abstraction has 3363 states and 4717 transitions. [2022-07-21 10:16:51,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:16:51,782 INFO L276 IsEmpty]: Start isEmpty. Operand 3363 states and 4717 transitions. [2022-07-21 10:16:51,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-21 10:16:51,782 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:16:51,783 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] [2022-07-21 10:16:51,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 10:16:51,783 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:16:51,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:16:51,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1935850625, now seen corresponding path program 1 times [2022-07-21 10:16:51,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:16:51,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754751252] [2022-07-21 10:16:51,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:16:51,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:16:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:51,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:16:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:51,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:16:51,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:16:51,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754751252] [2022-07-21 10:16:51,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754751252] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:16:51,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:16:51,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:16:51,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580829179] [2022-07-21 10:16:51,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:16:51,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:16:51,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:16:51,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:16:51,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:16:51,911 INFO L87 Difference]: Start difference. First operand 3363 states and 4717 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:16:52,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:16:52,050 INFO L93 Difference]: Finished difference Result 3397 states and 4751 transitions. [2022-07-21 10:16:52,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:16:52,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-07-21 10:16:52,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:16:52,070 INFO L225 Difference]: With dead ends: 3397 [2022-07-21 10:16:52,071 INFO L226 Difference]: Without dead ends: 3373 [2022-07-21 10:16:52,074 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 [2022-07-21 10:16:52,075 INFO L413 NwaCegarLoop]: 3522 mSDtfsCounter, 3432 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3432 SdHoareTripleChecker+Valid, 3608 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:16:52,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3432 Valid, 3608 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:16:52,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3373 states. [2022-07-21 10:16:52,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3373 to 3371. [2022-07-21 10:16:52,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3371 states, 2329 states have (on average 1.3125805066552167) internal successors, (3057), 2392 states have internal predecessors, (3057), 830 states have call successors, (830), 214 states have call predecessors, (830), 211 states have return successors, (828), 802 states have call predecessors, (828), 822 states have call successors, (828) [2022-07-21 10:16:52,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3371 states to 3371 states and 4715 transitions. [2022-07-21 10:16:52,256 INFO L78 Accepts]: Start accepts. Automaton has 3371 states and 4715 transitions. Word has length 20 [2022-07-21 10:16:52,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:16:52,257 INFO L495 AbstractCegarLoop]: Abstraction has 3371 states and 4715 transitions. [2022-07-21 10:16:52,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:16:52,258 INFO L276 IsEmpty]: Start isEmpty. Operand 3371 states and 4715 transitions. [2022-07-21 10:16:52,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-21 10:16:52,268 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:16:52,268 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] [2022-07-21 10:16:52,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 10:16:52,268 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:16:52,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:16:52,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1344205755, now seen corresponding path program 1 times [2022-07-21 10:16:52,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:16:52,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283980820] [2022-07-21 10:16:52,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:16:52,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:16:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:52,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:16:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:52,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 10:16:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:52,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 10:16:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:52,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 10:16:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:52,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-21 10:16:52,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:16:52,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283980820] [2022-07-21 10:16:52,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283980820] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:16:52,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:16:52,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:16:52,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485920009] [2022-07-21 10:16:52,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:16:52,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:16:52,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:16:52,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:16:52,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:16:52,579 INFO L87 Difference]: Start difference. First operand 3371 states and 4715 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-21 10:16:55,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:16:58,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:16:58,618 INFO L93 Difference]: Finished difference Result 5247 states and 7260 transitions. [2022-07-21 10:16:58,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:16:58,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2022-07-21 10:16:58,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:16:58,636 INFO L225 Difference]: With dead ends: 5247 [2022-07-21 10:16:58,636 INFO L226 Difference]: Without dead ends: 2682 [2022-07-21 10:16:58,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:16:58,649 INFO L413 NwaCegarLoop]: 3052 mSDtfsCounter, 2362 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 1906 mSolverCounterSat, 899 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2729 SdHoareTripleChecker+Valid, 4959 SdHoareTripleChecker+Invalid, 2806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 899 IncrementalHoareTripleChecker+Valid, 1906 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-07-21 10:16:58,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2729 Valid, 4959 Invalid, 2806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [899 Valid, 1906 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-07-21 10:16:58,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2022-07-21 10:16:58,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2560. [2022-07-21 10:16:58,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2560 states, 1769 states have (on average 1.3024307518371963) internal successors, (2304), 1809 states have internal predecessors, (2304), 622 states have call successors, (622), 170 states have call predecessors, (622), 168 states have return successors, (615), 603 states have call predecessors, (615), 615 states have call successors, (615) [2022-07-21 10:16:58,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 3541 transitions. [2022-07-21 10:16:58,784 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 3541 transitions. Word has length 50 [2022-07-21 10:16:58,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:16:58,786 INFO L495 AbstractCegarLoop]: Abstraction has 2560 states and 3541 transitions. [2022-07-21 10:16:58,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-21 10:16:58,786 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 3541 transitions. [2022-07-21 10:16:58,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-21 10:16:58,793 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:16:58,794 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, 1, 1] [2022-07-21 10:16:58,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 10:16:58,794 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:16:58,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:16:58,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1687789997, now seen corresponding path program 1 times [2022-07-21 10:16:58,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:16:58,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867208430] [2022-07-21 10:16:58,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:16:58,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:16:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:58,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:16:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:58,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:16:58,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:59,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-21 10:16:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:59,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 10:16:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:59,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:16:59,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:59,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 10:16:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:59,039 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-21 10:16:59,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:16:59,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867208430] [2022-07-21 10:16:59,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867208430] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:16:59,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:16:59,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:16:59,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897927950] [2022-07-21 10:16:59,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:16:59,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:16:59,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:16:59,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:16:59,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:16:59,042 INFO L87 Difference]: Start difference. First operand 2560 states and 3541 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-21 10:17:01,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:17:04,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:17:04,847 INFO L93 Difference]: Finished difference Result 5229 states and 7272 transitions. [2022-07-21 10:17:04,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 10:17:04,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 71 [2022-07-21 10:17:04,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:17:04,865 INFO L225 Difference]: With dead ends: 5229 [2022-07-21 10:17:04,865 INFO L226 Difference]: Without dead ends: 2682 [2022-07-21 10:17:04,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:17:04,876 INFO L413 NwaCegarLoop]: 2996 mSDtfsCounter, 976 mSDsluCounter, 2957 mSDsCounter, 0 mSdLazyCounter, 2071 mSolverCounterSat, 621 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 5953 SdHoareTripleChecker+Invalid, 2693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 2071 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-07-21 10:17:04,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 5953 Invalid, 2693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 2071 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-07-21 10:17:04,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2022-07-21 10:17:05,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2560. [2022-07-21 10:17:05,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2560 states, 1769 states have (on average 1.2990390050876202) internal successors, (2298), 1809 states have internal predecessors, (2298), 622 states have call successors, (622), 170 states have call predecessors, (622), 168 states have return successors, (615), 603 states have call predecessors, (615), 615 states have call successors, (615) [2022-07-21 10:17:05,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 3535 transitions. [2022-07-21 10:17:05,031 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 3535 transitions. Word has length 71 [2022-07-21 10:17:05,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:17:05,032 INFO L495 AbstractCegarLoop]: Abstraction has 2560 states and 3535 transitions. [2022-07-21 10:17:05,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-21 10:17:05,032 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 3535 transitions. [2022-07-21 10:17:05,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-21 10:17:05,038 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:17:05,038 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:17:05,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 10:17:05,039 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:17:05,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:17:05,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1685524286, now seen corresponding path program 1 times [2022-07-21 10:17:05,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:17:05,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055731069] [2022-07-21 10:17:05,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:17:05,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:17:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:05,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:17:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:05,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:17:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:05,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:17:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:05,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:17:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:05,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:17:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:05,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:17:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:05,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 10:17:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:05,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 10:17:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:05,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 10:17:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:05,323 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-21 10:17:05,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:17:05,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055731069] [2022-07-21 10:17:05,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055731069] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:17:05,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:17:05,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 10:17:05,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555992691] [2022-07-21 10:17:05,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:17:05,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 10:17:05,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:17:05,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 10:17:05,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 10:17:05,327 INFO L87 Difference]: Start difference. First operand 2560 states and 3535 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 10:17:08,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:17:10,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:17:12,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:17:16,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:17:16,435 INFO L93 Difference]: Finished difference Result 5189 states and 7183 transitions. [2022-07-21 10:17:16,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 10:17:16,435 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 81 [2022-07-21 10:17:16,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:17:16,452 INFO L225 Difference]: With dead ends: 5189 [2022-07-21 10:17:16,452 INFO L226 Difference]: Without dead ends: 2680 [2022-07-21 10:17:16,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-21 10:17:16,464 INFO L413 NwaCegarLoop]: 2996 mSDtfsCounter, 984 mSDsluCounter, 6474 mSDsCounter, 0 mSdLazyCounter, 5026 mSolverCounterSat, 614 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 9470 SdHoareTripleChecker+Invalid, 5643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 5026 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-07-21 10:17:16,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1218 Valid, 9470 Invalid, 5643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [614 Valid, 5026 Invalid, 3 Unknown, 0 Unchecked, 10.8s Time] [2022-07-21 10:17:16,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2022-07-21 10:17:16,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 2560. [2022-07-21 10:17:16,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2560 states, 1769 states have (on average 1.2984737139626907) internal successors, (2297), 1808 states have internal predecessors, (2297), 622 states have call successors, (622), 170 states have call predecessors, (622), 168 states have return successors, (615), 603 states have call predecessors, (615), 615 states have call successors, (615) [2022-07-21 10:17:16,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 3534 transitions. [2022-07-21 10:17:16,582 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 3534 transitions. Word has length 81 [2022-07-21 10:17:16,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:17:16,582 INFO L495 AbstractCegarLoop]: Abstraction has 2560 states and 3534 transitions. [2022-07-21 10:17:16,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 10:17:16,582 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 3534 transitions. [2022-07-21 10:17:16,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-21 10:17:16,587 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:17:16,588 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:17:16,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 10:17:16,588 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:17:16,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:17:16,589 INFO L85 PathProgramCache]: Analyzing trace with hash -296859111, now seen corresponding path program 1 times [2022-07-21 10:17:16,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:17:16,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399561166] [2022-07-21 10:17:16,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:17:16,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:17:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:16,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:17:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:16,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 10:17:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:16,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 10:17:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:16,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 10:17:16,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:16,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:17:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:16,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:17:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:16,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:17:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:16,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 10:17:16,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:16,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-21 10:17:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:16,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 10:17:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:16,837 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-21 10:17:16,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:17:16,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399561166] [2022-07-21 10:17:16,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399561166] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:17:16,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:17:16,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 10:17:16,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533495102] [2022-07-21 10:17:16,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:17:16,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 10:17:16,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:17:16,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 10:17:16,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 10:17:16,839 INFO L87 Difference]: Start difference. First operand 2560 states and 3534 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-21 10:17:20,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:17:22,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:17:24,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:17:27,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:17:27,635 INFO L93 Difference]: Finished difference Result 5188 states and 7181 transitions. [2022-07-21 10:17:27,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 10:17:27,635 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 88 [2022-07-21 10:17:27,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:17:27,648 INFO L225 Difference]: With dead ends: 5188 [2022-07-21 10:17:27,648 INFO L226 Difference]: Without dead ends: 2669 [2022-07-21 10:17:27,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-21 10:17:27,657 INFO L413 NwaCegarLoop]: 2995 mSDtfsCounter, 985 mSDsluCounter, 6470 mSDsCounter, 0 mSdLazyCounter, 5020 mSolverCounterSat, 616 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 9465 SdHoareTripleChecker+Invalid, 5639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 616 IncrementalHoareTripleChecker+Valid, 5020 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-07-21 10:17:27,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 9465 Invalid, 5639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [616 Valid, 5020 Invalid, 3 Unknown, 0 Unchecked, 10.6s Time] [2022-07-21 10:17:27,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states. [2022-07-21 10:17:27,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 2549. [2022-07-21 10:17:27,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2549 states, 1762 states have (on average 1.2985244040862656) internal successors, (2288), 1801 states have internal predecessors, (2288), 620 states have call successors, (620), 168 states have call predecessors, (620), 166 states have return successors, (613), 601 states have call predecessors, (613), 613 states have call successors, (613) [2022-07-21 10:17:27,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2549 states to 2549 states and 3521 transitions. [2022-07-21 10:17:27,779 INFO L78 Accepts]: Start accepts. Automaton has 2549 states and 3521 transitions. Word has length 88 [2022-07-21 10:17:27,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:17:27,779 INFO L495 AbstractCegarLoop]: Abstraction has 2549 states and 3521 transitions. [2022-07-21 10:17:27,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-21 10:17:27,780 INFO L276 IsEmpty]: Start isEmpty. Operand 2549 states and 3521 transitions. [2022-07-21 10:17:27,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-07-21 10:17:27,788 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:17:27,789 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:17:27,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 10:17:27,789 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:17:27,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:17:27,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1782157613, now seen corresponding path program 1 times [2022-07-21 10:17:27,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:17:27,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22809251] [2022-07-21 10:17:27,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:17:27,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:17:27,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:28,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:17:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:28,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 10:17:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:28,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:17:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:28,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 10:17:28,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:28,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:17:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:28,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 10:17:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:28,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 10:17:28,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:28,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:17:28,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:28,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:17:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:28,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:17:28,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:28,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:17:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:28,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:17:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:28,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:17:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:28,128 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-21 10:17:28,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:17:28,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22809251] [2022-07-21 10:17:28,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22809251] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:17:28,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:17:28,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 10:17:28,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182056062] [2022-07-21 10:17:28,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:17:28,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 10:17:28,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:17:28,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 10:17:28,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 10:17:28,132 INFO L87 Difference]: Start difference. First operand 2549 states and 3521 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 10:17:31,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:17:33,286 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:17:38,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:17:38,023 INFO L93 Difference]: Finished difference Result 5304 states and 7360 transitions. [2022-07-21 10:17:38,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 10:17:38,024 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2022-07-21 10:17:38,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:17:38,034 INFO L225 Difference]: With dead ends: 5304 [2022-07-21 10:17:38,034 INFO L226 Difference]: Without dead ends: 2794 [2022-07-21 10:17:38,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-21 10:17:38,039 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 1644 mSDsluCounter, 5694 mSDsCounter, 0 mSdLazyCounter, 4702 mSolverCounterSat, 1501 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1792 SdHoareTripleChecker+Valid, 8657 SdHoareTripleChecker+Invalid, 6205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1501 IncrementalHoareTripleChecker+Valid, 4702 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-07-21 10:17:38,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1792 Valid, 8657 Invalid, 6205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1501 Valid, 4702 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2022-07-21 10:17:38,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2794 states. [2022-07-21 10:17:38,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2794 to 2549. [2022-07-21 10:17:38,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2549 states, 1762 states have (on average 1.2979568671963677) internal successors, (2287), 1801 states have internal predecessors, (2287), 620 states have call successors, (620), 168 states have call predecessors, (620), 166 states have return successors, (613), 601 states have call predecessors, (613), 613 states have call successors, (613) [2022-07-21 10:17:38,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2549 states to 2549 states and 3520 transitions. [2022-07-21 10:17:38,143 INFO L78 Accepts]: Start accepts. Automaton has 2549 states and 3520 transitions. Word has length 109 [2022-07-21 10:17:38,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:17:38,143 INFO L495 AbstractCegarLoop]: Abstraction has 2549 states and 3520 transitions. [2022-07-21 10:17:38,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 10:17:38,143 INFO L276 IsEmpty]: Start isEmpty. Operand 2549 states and 3520 transitions. [2022-07-21 10:17:38,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-21 10:17:38,148 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:17:38,148 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:17:38,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 10:17:38,149 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:17:38,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:17:38,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1340529683, now seen corresponding path program 1 times [2022-07-21 10:17:38,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:17:38,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862405421] [2022-07-21 10:17:38,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:17:38,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:17:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:38,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:17:38,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:38,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 10:17:38,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:38,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:17:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:38,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 10:17:38,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:39,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:17:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:39,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 10:17:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:39,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 10:17:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:39,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 10:17:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:39,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:17:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:39,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:17:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:39,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:17:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:39,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 10:17:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:39,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 10:17:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:39,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-21 10:17:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:39,136 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-21 10:17:39,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:17:39,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862405421] [2022-07-21 10:17:39,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862405421] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:17:39,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566060922] [2022-07-21 10:17:39,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:17:39,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:17:39,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:17:39,139 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:17:39,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 10:17:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:40,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 2816 conjuncts, 41 conjunts are in the unsatisfiable core [2022-07-21 10:17:40,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:17:40,417 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 10:17:40,417 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:17:40,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566060922] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:17:40,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:17:40,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [14] total 16 [2022-07-21 10:17:40,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344841710] [2022-07-21 10:17:40,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:17:40,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 10:17:40,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:17:40,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 10:17:40,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2022-07-21 10:17:40,420 INFO L87 Difference]: Start difference. First operand 2549 states and 3520 transitions. Second operand has 12 states, 10 states have (on average 7.9) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-21 10:17:42,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:17:43,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:17:44,000 INFO L93 Difference]: Finished difference Result 5073 states and 7015 transitions. [2022-07-21 10:17:44,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 10:17:44,000 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.9) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) Word has length 112 [2022-07-21 10:17:44,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:17:44,014 INFO L225 Difference]: With dead ends: 5073 [2022-07-21 10:17:44,014 INFO L226 Difference]: Without dead ends: 2558 [2022-07-21 10:17:44,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 133 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2022-07-21 10:17:44,025 INFO L413 NwaCegarLoop]: 3069 mSDtfsCounter, 2 mSDsluCounter, 30524 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 33593 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-21 10:17:44,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 33593 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1484 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-07-21 10:17:44,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2558 states. [2022-07-21 10:17:44,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2558 to 2556. [2022-07-21 10:17:44,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2556 states, 1767 states have (on average 1.2971137521222411) internal successors, (2292), 1806 states have internal predecessors, (2292), 621 states have call successors, (621), 168 states have call predecessors, (621), 167 states have return successors, (620), 603 states have call predecessors, (620), 614 states have call successors, (620) [2022-07-21 10:17:44,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2556 states to 2556 states and 3533 transitions. [2022-07-21 10:17:44,138 INFO L78 Accepts]: Start accepts. Automaton has 2556 states and 3533 transitions. Word has length 112 [2022-07-21 10:17:44,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:17:44,138 INFO L495 AbstractCegarLoop]: Abstraction has 2556 states and 3533 transitions. [2022-07-21 10:17:44,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.9) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-21 10:17:44,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2556 states and 3533 transitions. [2022-07-21 10:17:44,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-21 10:17:44,144 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:17:44,144 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:17:44,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 10:17:44,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-21 10:17:44,362 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:17:44,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:17:44,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1004750139, now seen corresponding path program 1 times [2022-07-21 10:17:44,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:17:44,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030499485] [2022-07-21 10:17:44,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:17:44,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:17:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:45,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:17:45,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:45,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 10:17:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:45,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:17:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:45,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 10:17:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:45,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:17:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:45,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:17:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:45,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 10:17:45,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:45,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 10:17:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:45,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:17:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:45,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:17:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:45,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:17:45,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:45,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 10:17:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:45,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-21 10:17:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:45,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 10:17:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:45,521 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-21 10:17:45,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:17:45,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030499485] [2022-07-21 10:17:45,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030499485] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:17:45,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087906244] [2022-07-21 10:17:45,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:17:45,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:17:45,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:17:45,524 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:17:45,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 10:17:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:46,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 2876 conjuncts, 71 conjunts are in the unsatisfiable core [2022-07-21 10:17:46,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:17:47,831 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 10:17:47,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:17:47,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087906244] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:17:47,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:17:47,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [20] total 31 [2022-07-21 10:17:47,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662754] [2022-07-21 10:17:47,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:17:47,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-21 10:17:47,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:17:47,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-21 10:17:47,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=846, Unknown=0, NotChecked=0, Total=930 [2022-07-21 10:17:47,833 INFO L87 Difference]: Start difference. First operand 2556 states and 3533 transitions. Second operand has 18 states, 15 states have (on average 5.666666666666667) internal successors, (85), 14 states have internal predecessors, (85), 5 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2022-07-21 10:17:50,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:17:52,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:17:52,334 INFO L93 Difference]: Finished difference Result 5070 states and 7015 transitions. [2022-07-21 10:17:52,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-21 10:17:52,335 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 5.666666666666667) internal successors, (85), 14 states have internal predecessors, (85), 5 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) Word has length 118 [2022-07-21 10:17:52,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:17:52,343 INFO L225 Difference]: With dead ends: 5070 [2022-07-21 10:17:52,344 INFO L226 Difference]: Without dead ends: 2553 [2022-07-21 10:17:52,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 129 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=185, Invalid=1455, Unknown=0, NotChecked=0, Total=1640 [2022-07-21 10:17:52,353 INFO L413 NwaCegarLoop]: 3074 mSDtfsCounter, 14 mSDsluCounter, 39756 mSDsCounter, 0 mSdLazyCounter, 1988 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 42830 SdHoareTripleChecker+Invalid, 2003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1988 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-07-21 10:17:52,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 42830 Invalid, 2003 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 1988 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-07-21 10:17:52,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2553 states. [2022-07-21 10:17:52,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2553 to 2544. [2022-07-21 10:17:52,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2544 states, 1759 states have (on average 1.297896532120523) internal successors, (2283), 1798 states have internal predecessors, (2283), 619 states have call successors, (619), 167 states have call predecessors, (619), 165 states have return successors, (612), 600 states have call predecessors, (612), 612 states have call successors, (612) [2022-07-21 10:17:52,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2544 states to 2544 states and 3514 transitions. [2022-07-21 10:17:52,462 INFO L78 Accepts]: Start accepts. Automaton has 2544 states and 3514 transitions. Word has length 118 [2022-07-21 10:17:52,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:17:52,462 INFO L495 AbstractCegarLoop]: Abstraction has 2544 states and 3514 transitions. [2022-07-21 10:17:52,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 5.666666666666667) internal successors, (85), 14 states have internal predecessors, (85), 5 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2022-07-21 10:17:52,463 INFO L276 IsEmpty]: Start isEmpty. Operand 2544 states and 3514 transitions. [2022-07-21 10:17:52,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-21 10:17:52,467 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:17:52,468 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:17:52,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 10:17:52,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-21 10:17:52,696 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:17:52,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:17:52,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1953421011, now seen corresponding path program 1 times [2022-07-21 10:17:52,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:17:52,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210887378] [2022-07-21 10:17:52,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:17:52,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:17:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:54,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:17:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:54,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 10:17:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:54,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:17:54,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:54,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 10:17:54,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:54,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:17:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:54,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:17:54,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:54,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 10:17:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:54,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-21 10:17:54,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:54,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:17:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:54,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:17:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:54,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:17:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:54,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-21 10:17:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:54,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 10:17:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:54,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 10:17:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:54,452 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-21 10:17:54,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:17:54,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210887378] [2022-07-21 10:17:54,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210887378] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:17:54,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685421745] [2022-07-21 10:17:54,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:17:54,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:17:54,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:17:54,455 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:17:54,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 10:17:55,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:55,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 3305 conjuncts, 35 conjunts are in the unsatisfiable core [2022-07-21 10:17:55,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:17:55,568 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-21 10:17:55,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 10:17:55,774 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-21 10:17:55,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685421745] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 10:17:55,774 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 10:17:55,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 6] total 13 [2022-07-21 10:17:55,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530870569] [2022-07-21 10:17:55,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 10:17:55,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 10:17:55,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:17:55,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 10:17:55,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-07-21 10:17:55,776 INFO L87 Difference]: Start difference. First operand 2544 states and 3514 transitions. Second operand has 13 states, 10 states have (on average 10.6) internal successors, (106), 9 states have internal predecessors, (106), 5 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2022-07-21 10:17:59,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:18:02,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:18:04,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:18:06,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:18:08,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:18:10,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:18:12,187 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:18:22,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:18:22,385 INFO L93 Difference]: Finished difference Result 5312 states and 7370 transitions. [2022-07-21 10:18:22,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 10:18:22,386 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 10.6) internal successors, (106), 9 states have internal predecessors, (106), 5 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) Word has length 116 [2022-07-21 10:18:22,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:18:22,397 INFO L225 Difference]: With dead ends: 5312 [2022-07-21 10:18:22,397 INFO L226 Difference]: Without dead ends: 2780 [2022-07-21 10:18:22,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-07-21 10:18:22,405 INFO L413 NwaCegarLoop]: 2866 mSDtfsCounter, 2166 mSDsluCounter, 15036 mSDsCounter, 0 mSdLazyCounter, 13999 mSolverCounterSat, 1703 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2318 SdHoareTripleChecker+Valid, 17902 SdHoareTripleChecker+Invalid, 15709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1703 IncrementalHoareTripleChecker+Valid, 13999 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.2s IncrementalHoareTripleChecker+Time [2022-07-21 10:18:22,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2318 Valid, 17902 Invalid, 15709 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1703 Valid, 13999 Invalid, 7 Unknown, 0 Unchecked, 26.2s Time] [2022-07-21 10:18:22,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2022-07-21 10:18:22,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 2535. [2022-07-21 10:18:22,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2535 states, 1754 states have (on average 1.297605473204105) internal successors, (2276), 1793 states have internal predecessors, (2276), 616 states have call successors, (616), 166 states have call predecessors, (616), 164 states have return successors, (609), 597 states have call predecessors, (609), 609 states have call successors, (609) [2022-07-21 10:18:22,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2535 states to 2535 states and 3501 transitions. [2022-07-21 10:18:22,507 INFO L78 Accepts]: Start accepts. Automaton has 2535 states and 3501 transitions. Word has length 116 [2022-07-21 10:18:22,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:18:22,507 INFO L495 AbstractCegarLoop]: Abstraction has 2535 states and 3501 transitions. [2022-07-21 10:18:22,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 10.6) internal successors, (106), 9 states have internal predecessors, (106), 5 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2022-07-21 10:18:22,508 INFO L276 IsEmpty]: Start isEmpty. Operand 2535 states and 3501 transitions. [2022-07-21 10:18:22,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-21 10:18:22,512 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:18:22,512 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:18:22,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-21 10:18:22,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:18:22,727 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:18:22,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:18:22,728 INFO L85 PathProgramCache]: Analyzing trace with hash 174732758, now seen corresponding path program 1 times [2022-07-21 10:18:22,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:18:22,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265189269] [2022-07-21 10:18:22,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:18:22,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:18:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 10:18:24,159 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 10:18:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 10:18:25,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 10:18:25,276 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 10:18:25,277 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 10:18:25,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 10:18:25,281 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:18:25,286 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 10:18:25,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:18:25 BoogieIcfgContainer [2022-07-21 10:18:25,450 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 10:18:25,451 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 10:18:25,451 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 10:18:25,451 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 10:18:25,452 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:16:48" (3/4) ... [2022-07-21 10:18:25,456 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-21 10:18:25,456 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 10:18:25,457 INFO L158 Benchmark]: Toolchain (without parser) took 113194.71ms. Allocated memory was 62.9MB in the beginning and 1.1GB in the end (delta: 1.1GB). Free memory was 35.1MB in the beginning and 398.8MB in the end (delta: -363.7MB). Peak memory consumption was 689.9MB. Max. memory is 16.1GB. [2022-07-21 10:18:25,457 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 50.3MB. Free memory was 31.9MB in the beginning and 31.9MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 10:18:25,458 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4184.90ms. Allocated memory was 62.9MB in the beginning and 182.5MB in the end (delta: 119.5MB). Free memory was 34.9MB in the beginning and 85.5MB in the end (delta: -50.6MB). Peak memory consumption was 73.7MB. Max. memory is 16.1GB. [2022-07-21 10:18:25,458 INFO L158 Benchmark]: Boogie Procedure Inliner took 384.26ms. Allocated memory is still 182.5MB. Free memory was 85.5MB in the beginning and 72.4MB in the end (delta: 13.1MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2022-07-21 10:18:25,458 INFO L158 Benchmark]: Boogie Preprocessor took 477.30ms. Allocated memory is still 182.5MB. Free memory was 72.4MB in the beginning and 71.1MB in the end (delta: 1.3MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2022-07-21 10:18:25,458 INFO L158 Benchmark]: RCFGBuilder took 11224.39ms. Allocated memory was 182.5MB in the beginning and 750.8MB in the end (delta: 568.3MB). Free memory was 71.1MB in the beginning and 321.7MB in the end (delta: -250.6MB). Peak memory consumption was 442.5MB. Max. memory is 16.1GB. [2022-07-21 10:18:25,459 INFO L158 Benchmark]: TraceAbstraction took 96912.12ms. Allocated memory was 750.8MB in the beginning and 1.1GB in the end (delta: 364.9MB). Free memory was 320.6MB in the beginning and 399.8MB in the end (delta: -79.2MB). Peak memory consumption was 375.9MB. Max. memory is 16.1GB. [2022-07-21 10:18:25,459 INFO L158 Benchmark]: Witness Printer took 5.16ms. Allocated memory is still 1.1GB. Free memory was 399.8MB in the beginning and 398.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 10:18:25,464 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 50.3MB. Free memory was 31.9MB in the beginning and 31.9MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4184.90ms. Allocated memory was 62.9MB in the beginning and 182.5MB in the end (delta: 119.5MB). Free memory was 34.9MB in the beginning and 85.5MB in the end (delta: -50.6MB). Peak memory consumption was 73.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 384.26ms. Allocated memory is still 182.5MB. Free memory was 85.5MB in the beginning and 72.4MB in the end (delta: 13.1MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 477.30ms. Allocated memory is still 182.5MB. Free memory was 72.4MB in the beginning and 71.1MB in the end (delta: 1.3MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * RCFGBuilder took 11224.39ms. Allocated memory was 182.5MB in the beginning and 750.8MB in the end (delta: 568.3MB). Free memory was 71.1MB in the beginning and 321.7MB in the end (delta: -250.6MB). Peak memory consumption was 442.5MB. Max. memory is 16.1GB. * TraceAbstraction took 96912.12ms. Allocated memory was 750.8MB in the beginning and 1.1GB in the end (delta: 364.9MB). Free memory was 320.6MB in the beginning and 399.8MB in the end (delta: -79.2MB). Peak memory consumption was 375.9MB. Max. memory is 16.1GB. * Witness Printer took 5.16ms. Allocated memory is still 1.1GB. Free memory was 399.8MB in the beginning and 398.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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: 13668]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of __builtin_object_size at line 7404, overapproximation of large string literal at line 12845, overapproximation of bitwiseAnd at line 12077. Possible FailurePath: [L7687] static unsigned int vhost_zcopy_mask ; [L10792] static struct target_fabric_configfs *tcm_vhost_fabric_configfs ; [L10793] static struct workqueue_struct *tcm_vhost_workqueue ; [L10794-L10797] static struct mutex tcm_vhost_mutex = {{1}, {{{{{0U}}, 3735899821U, 4294967295U, 0xffffffffffffffffUL, {0, {0, 0}, "tcm_vhost_mutex.wait_lock", 0, 0UL}}}}, {& tcm_vhost_mutex.wait_list, & tcm_vhost_mutex.wait_list}, 0, 0, (void *)(& tcm_vhost_mutex), {0, {0, 0}, "tcm_vhost_mutex", 0, 0UL}}; [L10798] static struct list_head tcm_vhost_list = {& tcm_vhost_list, & tcm_vhost_list}; [L12183-L12186] static struct file_operations const vhost_scsi_fops = {& __this_module, & noop_llseek, 0, 0, 0, 0, 0, 0, & vhost_scsi_ioctl, & vhost_scsi_compat_ioctl, 0, & vhost_scsi_open, 0, & vhost_scsi_release, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L12187-L12188] static struct miscdevice vhost_scsi_misc = {255, "vhost-scsi", & vhost_scsi_fops, {0, 0}, 0, 0, 0, (unsigned short)0}; [L12540] static struct target_fabric_tpg_attribute tcm_vhost_tpg_nexus = {{"nexus", & __this_module, 420U}, & tcm_vhost_tpg_show_nexus, & tcm_vhost_tpg_store_nexus}; [L12541] static struct configfs_attribute *tcm_vhost_tpg_attrs[2U] = { & tcm_vhost_tpg_nexus.attr, 0}; [L12732] static struct target_fabric_wwn_attribute tcm_vhost_wwn_version = {{"version", & __this_module, 292U}, & tcm_vhost_wwn_show_attr_version, 0}; [L12733] static struct configfs_attribute *tcm_vhost_wwn_attrs[2U] = { & tcm_vhost_wwn_version.attr, 0}; [L12734-L12745] static struct target_core_fabric_ops tcm_vhost_ops = {0, & tcm_vhost_get_fabric_name, & tcm_vhost_get_fabric_proto_ident, & tcm_vhost_get_fabric_wwn, & tcm_vhost_get_tag, & tcm_vhost_get_default_depth, & tcm_vhost_get_pr_transport_id, & tcm_vhost_get_pr_transport_id_len, & tcm_vhost_parse_pr_out_transport_id, & tcm_vhost_check_true, & tcm_vhost_check_true, & tcm_vhost_check_false, & tcm_vhost_check_false, 0, & tcm_vhost_alloc_fabric_acl, & tcm_vhost_release_fabric_acl, & tcm_vhost_tpg_get_inst_index, 0, & tcm_vhost_release_cmd, 0, & tcm_vhost_shutdown_session, & tcm_vhost_close_session, & tcm_vhost_sess_get_index, 0, & tcm_vhost_write_pending, & tcm_vhost_write_pending_status, & tcm_vhost_set_default_node_attrs, & tcm_vhost_get_task_tag, & tcm_vhost_get_cmd_state, & tcm_vhost_queue_data_in, & tcm_vhost_queue_status, & tcm_vhost_queue_tm_rsp, & tcm_vhost_make_tport, & tcm_vhost_drop_tport, & tcm_vhost_make_tpg, & tcm_vhost_drop_tpg, & tcm_vhost_port_link, & tcm_vhost_port_unlink, 0, 0, & tcm_vhost_make_nodeacl, & tcm_vhost_drop_nodeacl}; [L12885] int LDV_IN_INTERRUPT ; [L13678] static int ldv_mutex_cred_guard_mutex ; [L13785] static int ldv_mutex_lock ; [L13892] static int ldv_mutex_mtx ; [L13999] static int ldv_mutex_mutex ; [L14106] static int ldv_mutex_tcm_vhost_mutex ; [L14213] static int ldv_mutex_tv_tpg_mutex ; VAL [__this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=0, ldv_mutex_cred_guard_mutex=0, ldv_mutex_lock=0, ldv_mutex_mtx=0, ldv_mutex_mutex=0, ldv_mutex_tcm_vhost_mutex=0, ldv_mutex_tv_tpg_mutex=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={0:0}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12888] struct inode *var_group1 ; [L12889] struct file *var_group2 ; [L12890] unsigned int var_vhost_scsi_ioctl_44_p1 ; [L12891] unsigned long var_vhost_scsi_ioctl_44_p2 ; [L12892] unsigned int var_vhost_scsi_compat_ioctl_45_p1 ; [L12893] unsigned long var_vhost_scsi_compat_ioctl_45_p2 ; [L12894] int res_vhost_scsi_open_39 ; [L12895] struct se_portal_group *var_group3 ; [L12896] struct se_node_acl *var_group4 ; [L12897] struct t10_pr_registration *var_tcm_vhost_get_pr_transport_id_7_p2 ; [L12898] int *var_tcm_vhost_get_pr_transport_id_7_p3 ; [L12899] unsigned char *var_tcm_vhost_get_pr_transport_id_7_p4 ; [L12900] struct t10_pr_registration *var_tcm_vhost_get_pr_transport_id_len_8_p2 ; [L12901] int *var_tcm_vhost_get_pr_transport_id_len_8_p3 ; [L12902] char const *var_tcm_vhost_parse_pr_out_transport_id_9_p1 ; [L12903] u32 *var_tcm_vhost_parse_pr_out_transport_id_9_p2 ; [L12904] char **var_tcm_vhost_parse_pr_out_transport_id_9_p3 ; [L12905] struct se_cmd *var_group5 ; [L12906] struct se_session *var_group6 ; [L12907] struct target_fabric_configfs *var_group7 ; [L12908] struct config_group *var_group8 ; [L12909] char const *var_tcm_vhost_make_tport_59_p2 ; [L12910] struct se_wwn *var_group9 ; [L12911] char const *var_tcm_vhost_make_tpg_57_p2 ; [L12912] struct se_lun *var_group10 ; [L12913] char const *var_tcm_vhost_make_nodeacl_51_p2 ; [L12914] int ldv_s_vhost_scsi_fops_file_operations ; [L12915] int tmp ; [L12916] int tmp___0 ; [L12917] int tmp___1 ; [L12919] ldv_s_vhost_scsi_fops_file_operations = 0 [L12920] LDV_IN_INTERRUPT = 1 [L12921] CALL ldv_initialize() [L14323] ldv_mutex_cred_guard_mutex = 1 [L14324] ldv_mutex_lock = 1 [L14325] ldv_mutex_mtx = 1 [L14326] ldv_mutex_mutex = 1 [L14327] ldv_mutex_tcm_vhost_mutex = 1 [L14328] ldv_mutex_tv_tpg_mutex = 1 VAL [__this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={0:0}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12921] RET ldv_initialize() [L12922] FCALL ldv_handler_precall() VAL [__this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ldv_s_vhost_scsi_fops_file_operations=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={0:0}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12923] CALL, EXPR tcm_vhost_init() [L12839] int ret ; [L12840] struct lock_class_key __key ; [L12841] char const *__lock_name ; [L12842] struct workqueue_struct *tmp ; [L12844] ret = -12 [L12845] __lock_name = "tcm_vhost" [L12846] tmp = __alloc_workqueue_key("tcm_vhost", 0U, 0, & __key, __lock_name) [L12847] tcm_vhost_workqueue = tmp VAL [__alloc_workqueue_key("tcm_vhost", 0U, 0, & __key, __lock_name)={366:-365}, __key={368:0}, __lock_name={354:0}, __this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ret=-12, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp={366:-365}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12848] COND FALSE !((unsigned long )tcm_vhost_workqueue == (unsigned long )((struct workqueue_struct *)0)) [L12852] CALL, EXPR vhost_scsi_register() [L12191] int tmp ; [L12193] CALL, EXPR misc_register(& vhost_scsi_misc) [L14561] return __VERIFIER_nondet_int(); [L12193] RET, EXPR misc_register(& vhost_scsi_misc) [L12193] tmp = misc_register(& vhost_scsi_misc) [L12194] return (tmp); VAL [\result=0, __this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=0, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12852] RET, EXPR vhost_scsi_register() [L12852] ret = vhost_scsi_register() [L12853] COND FALSE !(ret < 0) [L12857] CALL, EXPR tcm_vhost_register_configfs() [L12748] struct target_fabric_configfs *fabric ; [L12749] int ret ; [L12750] struct _ddebug descriptor ; [L12751] struct new_utsname *tmp ; [L12752] struct new_utsname *tmp___0 ; [L12753] long tmp___1 ; [L12754] long tmp___2 ; [L12755] long tmp___3 ; [L12756] struct _ddebug descriptor___0 ; [L12757] long tmp___4 ; [L12759] descriptor.modname = "tcm_vhost" [L12760] descriptor.function = "tcm_vhost_register_configfs" [L12761] descriptor.filename = "/work/vladimir/UFO/Work/test/work/current--X--drivers/vhost/tcm_vhost.ko--X--defaultlinux-3.7.3--X--32_7a--X--ufo/linux-3.7.3/csd_deg_dscv/12/dscv_tempdir/dscv/ri/32_7a/drivers/vhost/tcm_vhost.c.prepared" [L12762] descriptor.format = "TCM_VHOST fabric module %s on %s/%s on 3.7.3\n" [L12763] descriptor.lineno = 1561U [L12764] descriptor.flags = 0U [L12765] EXPR descriptor.flags VAL [__this_module={18446744073709551633:18446744073709551622}, descriptor={367:0}, descriptor.flags=0, descriptor___0={370:0}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12765] CALL, EXPR ldv__builtin_expect((long )descriptor.flags & 1L, 0L) VAL [\old(c)=0, \old(exp)=0, __this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L13675] return (exp); VAL [\old(c)=0, \old(exp)=0, \result=0, __this_module={18446744073709551633:18446744073709551622}, c=0, exp=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12765] RET, EXPR ldv__builtin_expect((long )descriptor.flags & 1L, 0L) VAL [__this_module={18446744073709551633:18446744073709551622}, descriptor={367:0}, descriptor.flags=0, descriptor___0={370:0}, ldv__builtin_expect((long )descriptor.flags & 1L, 0L)=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12765] tmp___1 = ldv__builtin_expect((long )descriptor.flags & 1L, 0L) [L12766] COND FALSE !(tmp___1 != 0L) VAL [__this_module={18446744073709551633:18446744073709551622}, descriptor={367:0}, descriptor___0={370:0}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp___1=0, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12773] CALL, EXPR target_fabric_configfs_init(& __this_module, "vhost") [L14636] CALL, EXPR ldv_malloc(sizeof(struct target_fabric_configfs)) VAL [__this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L7220] COND FALSE !(__VERIFIER_nondet_int()) [L7225] return ((void *)0); VAL [\old(size)=1300, \result={0:0}, __this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, size=1300, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L14636] RET, EXPR ldv_malloc(sizeof(struct target_fabric_configfs)) VAL [__this_module={18446744073709551633:18446744073709551622}, arg0={18446744073709551633:18446744073709551622}, arg0={18446744073709551633:18446744073709551622}, arg1={341:0}, arg1={341:0}, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct target_fabric_configfs))={0:0}, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L14636] return ldv_malloc(sizeof(struct target_fabric_configfs)); [L12773] RET, EXPR target_fabric_configfs_init(& __this_module, "vhost") [L12773] fabric = target_fabric_configfs_init(& __this_module, "vhost") [L12774] CALL, EXPR IS_ERR((void const *)fabric) VAL [__this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ptr={0:0}, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L6795] long tmp ; VAL [__this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ptr={0:0}, ptr={0:0}, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L6797] CALL, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [\old(c)=0, \old(exp)=0, __this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L13675] return (exp); VAL [\old(c)=0, \old(exp)=0, \result=0, __this_module={18446744073709551633:18446744073709551622}, c=0, exp=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L6797] RET, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [__this_module={18446744073709551633:18446744073709551622}, ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L)=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ptr={0:0}, ptr={0:0}, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L6797] tmp = ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) [L6798] return (tmp); VAL [\result=0, __this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ptr={0:0}, ptr={0:0}, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=0, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12774] RET, EXPR IS_ERR((void const *)fabric) VAL [__this_module={18446744073709551633:18446744073709551622}, descriptor={367:0}, descriptor___0={370:0}, fabric={0:0}, IS_ERR((void const *)fabric)=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp___1=0, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12774] tmp___3 = IS_ERR((void const *)fabric) [L12775] COND FALSE !(tmp___3 != 0L) [L12781] fabric->tf_ops = tcm_vhost_ops [L12782] fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = (struct configfs_attribute **)(& tcm_vhost_wwn_attrs) [L12783] fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = (struct configfs_attribute **)(& tcm_vhost_tpg_attrs) [L12784] fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = 0 [L12785] fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = 0 [L12786] fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = 0 [L12787] fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = 0 [L12788] fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = 0 [L12789] fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = 0 [L12790] fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = 0 [L12791] CALL, EXPR target_fabric_configfs_register(fabric) [L14640] return __VERIFIER_nondet_int(); [L12791] RET, EXPR target_fabric_configfs_register(fabric) [L12791] ret = target_fabric_configfs_register(fabric) [L12792] COND FALSE !(ret < 0) [L12797] tcm_vhost_fabric_configfs = fabric [L12798] descriptor___0.modname = "tcm_vhost" [L12799] descriptor___0.function = "tcm_vhost_register_configfs" [L12800] descriptor___0.filename = "/work/vladimir/UFO/Work/test/work/current--X--drivers/vhost/tcm_vhost.ko--X--defaultlinux-3.7.3--X--32_7a--X--ufo/linux-3.7.3/csd_deg_dscv/12/dscv_tempdir/dscv/ri/32_7a/drivers/vhost/tcm_vhost.c.prepared" [L12801] descriptor___0.format = "TCM_VHOST[0] - Set fabric -> tcm_vhost_fabric_configfs\n" [L12802] descriptor___0.lineno = 1599U [L12803] descriptor___0.flags = 0U [L12804] EXPR descriptor___0.flags VAL [__this_module={18446744073709551633:18446744073709551622}, descriptor={367:0}, descriptor___0={370:0}, descriptor___0.flags=0, fabric={0:0}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ret=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp___1=0, tmp___3=0, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12804] CALL, EXPR ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L) VAL [\old(c)=0, \old(exp)=0, __this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L13675] return (exp); VAL [\old(c)=0, \old(exp)=0, \result=0, __this_module={18446744073709551633:18446744073709551622}, c=0, exp=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12804] RET, EXPR ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L) VAL [__this_module={18446744073709551633:18446744073709551622}, descriptor={367:0}, descriptor___0={370:0}, descriptor___0.flags=0, fabric={0:0}, ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L)=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ret=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp___1=0, tmp___3=0, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12804] tmp___4 = ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L) [L12805] COND FALSE !(tmp___4 != 0L) VAL [__this_module={18446744073709551633:18446744073709551622}, descriptor={367:0}, descriptor___0={370:0}, fabric={0:0}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ret=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp___1=0, tmp___3=0, tmp___4=0, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12809] return (0); [L12809] return (0); [L12809] return (0); VAL [\result=0, __this_module={18446744073709551633:18446744073709551622}, fabric={0:0}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ret=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp___1=0, tmp___3=0, tmp___4=0, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12857] RET, EXPR tcm_vhost_register_configfs() [L12857] ret = tcm_vhost_register_configfs() [L12858] COND FALSE !(ret < 0) [L12862] return (0); [L12862] return (0); VAL [\result=0, __alloc_workqueue_key("tcm_vhost", 0U, 0, & __key, __lock_name)={366:-365}, __lock_name={354:0}, __this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ret=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp={366:-365}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12923] RET, EXPR tcm_vhost_init() [L12923] tmp = tcm_vhost_init() [L12924] COND FALSE !(tmp != 0) VAL [__this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ldv_s_vhost_scsi_fops_file_operations=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=0, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L13102] tmp___1 = __VERIFIER_nondet_int() [L13103] COND TRUE tmp___1 != 0 || ldv_s_vhost_scsi_fops_file_operations != 0 VAL [__this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ldv_s_vhost_scsi_fops_file_operations=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=0, tmp___1=1, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12930] tmp___0 = __VERIFIER_nondet_int() [L12932] case 0: [L12945] case 1: [L12953] case 2: [L12957] case 3: VAL [__this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ldv_s_vhost_scsi_fops_file_operations=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=0, tmp___0=3, tmp___1=1, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12958] FCALL ldv_handler_precall() VAL [__this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ldv_s_vhost_scsi_fops_file_operations=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=0, tmp___0=3, tmp___1=1, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12959] CALL vhost_scsi_compat_ioctl(var_group2, var_vhost_scsi_compat_ioctl_45_p1, var_vhost_scsi_compat_ioctl_45_p2) [L12175] void *tmp ; [L12176] long tmp___0 ; [L12178] CALL, EXPR compat_ptr((compat_uptr_t )arg) [L7259] return ((void *)((unsigned long )uptr)); VAL [\old(uptr)=4294967294, \result={0:4294967294}, __this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, uptr=4294967294, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12178] RET, EXPR compat_ptr((compat_uptr_t )arg) [L12178] tmp = compat_ptr((compat_uptr_t )arg) [L12179] CALL vhost_scsi_ioctl(f, ioctl, (unsigned long )tmp) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12095] struct vhost_scsi *vs ; [L12096] struct vhost_scsi_target backend ; [L12097] void *argp ; [L12098] u64 *featurep ; [L12099] u64 features ; [L12100] int r ; [L12101] int abi_version ; [L12102] unsigned long tmp ; [L12103] int tmp___0 ; [L12104] unsigned long tmp___1 ; [L12105] int tmp___2 ; [L12106] int tmp___3 ; [L12107] int tmp___4 ; [L12108] unsigned long tmp___5 ; [L12109] int tmp___6 ; [L12110] long tmp___7 ; [L12112] EXPR f->private_data [L12112] vs = (struct vhost_scsi *)f->private_data [L12113] argp = (void *)arg [L12114] featurep = (u64 *)argp [L12115] abi_version = 0 [L12117] case 1088991040U: [L12129] case 1088991041U: [L12141] case 1074048834U: [L12148] case 2148052736U: [L12156] case 1074310912U: VAL [\old(arg)=4294967294, \old(bit = (int )write_page & 7)=18446744073709551661, \old(ioctl)=1074310912, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, abi_version={369:0}, arg=4294967294, argp={0:4294967294}, backend={373:0}, bit = (int )write_page & 7=18446744073709551661, f={18446744073709551644:-286}, f={18446744073709551644:-286}, featurep={0:4294967294}, features={371:0}, ioctl=1074310912, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0, vs={18446744073709551675:374}] [L12157] CALL, EXPR copy_from_user((void *)(& features), (void const *)featurep, 8UL) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(n)=8, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, from={0:4294967294}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, to={371:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L7397] int sz ; [L7398] unsigned long tmp ; [L7399] int __ret_warn_on ; [L7400] long tmp___0 ; [L7401] long tmp___1 ; [L7402] long tmp___2 ; [L7404] tmp = __builtin_object_size((void const *)to, 0) [L7405] sz = (int )tmp VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(n)=8, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, from={0:4294967294}, from={0:4294967294}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, n=8, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, sz=-1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=4294967295, to={371:0}, to={371:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L7406] FCALL might_fault() VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(n)=8, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, from={0:4294967294}, from={0:4294967294}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, n=8, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, sz=-1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=4294967295, to={371:0}, to={371:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L7407] CALL, EXPR ldv__builtin_expect(sz == -1, 1L) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(c)=1, \old(exp)=1, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L13675] return (exp); VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(c)=1, \old(exp)=1, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, \result=1, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, c=1, exp=1, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L7407] RET, EXPR ldv__builtin_expect(sz == -1, 1L) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(n)=8, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, from={0:4294967294}, from={0:4294967294}, ldv__builtin_expect(sz == -1, 1L)=1, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, n=8, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, sz=-1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=4294967295, to={371:0}, to={371:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L7407] tmp___1 = ldv__builtin_expect(sz == -1, 1L) [L7408] COND TRUE tmp___1 != 0L VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(n)=8, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, from={0:4294967294}, from={0:4294967294}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, n=8, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, sz=-1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=4294967295, tmp___1=1, to={371:0}, to={371:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L7409] CALL, EXPR _copy_from_user(to, from, (unsigned int )n) VAL [\old(arg2)=8, \old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, arg0={371:0}, arg1={0:4294967294}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L14395] return __VERIFIER_nondet_ulong(); [L7409] RET, EXPR _copy_from_user(to, from, (unsigned int )n) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(n)=8, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, _copy_from_user(to, from, (unsigned int )n)=18446744073709551616, bit = (int )write_page & 7=18446744073709551661, from={0:4294967294}, from={0:4294967294}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, n=8, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, sz=-1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=4294967295, tmp___1=1, to={371:0}, to={371:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L7409] n = _copy_from_user(to, from, (unsigned int )n) [L7425] return (n); VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(n)=8, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, \result=18446744073709551616, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, from={0:4294967294}, from={0:4294967294}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, n=18446744073709551616, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, sz=-1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=4294967295, tmp___1=1, to={371:0}, to={371:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12157] RET, EXPR copy_from_user((void *)(& features), (void const *)featurep, 8UL) VAL [\old(arg)=4294967294, \old(bit = (int )write_page & 7)=18446744073709551661, \old(ioctl)=1074310912, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, abi_version={369:0}, arg=4294967294, argp={0:4294967294}, backend={373:0}, bit = (int )write_page & 7=18446744073709551661, copy_from_user((void *)(& features), (void const *)featurep, 8UL)=18446744073709551616, f={18446744073709551644:-286}, f={18446744073709551644:-286}, featurep={0:4294967294}, features={371:0}, ioctl=1074310912, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0, vs={18446744073709551675:374}] [L12157] tmp___5 = copy_from_user((void *)(& features), (void const *)featurep, 8UL) [L12158] COND FALSE !(tmp___5 != 0UL) [L12162] EXPR \read(features) [L12162] CALL vhost_scsi_set_features(vs, features) [L12070] int tmp ; VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(features)=67, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, features=67, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0, vs={18446744073709551675:374}, vs={18446744073709551675:374}] [L12072] COND FALSE !((features & 0xffffffffcaffffffULL) != 0ULL) [L12076] CALL ldv_mutex_lock_41(& vs->dev.mutex) [L13443] CALL ldv_mutex_lock_mutex(ldv_func_arg1) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, lock={18446744073709551675:398}, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L14037] COND TRUE ldv_mutex_mutex == 1 VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, lock={18446744073709551675:398}, lock={18446744073709551675:398}, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L14041] ldv_mutex_mutex = 2 VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, lock={18446744073709551675:398}, lock={18446744073709551675:398}, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L13443] RET ldv_mutex_lock_mutex(ldv_func_arg1) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, ldv_func_arg1={18446744073709551675:398}, ldv_func_arg1={18446744073709551675:398}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L13444] FCALL mutex_lock(ldv_func_arg1) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, ldv_func_arg1={18446744073709551675:398}, ldv_func_arg1={18446744073709551675:398}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12076] RET ldv_mutex_lock_41(& vs->dev.mutex) [L12077] COND TRUE (features & 67108864ULL) != 0ULL [L12078] CALL vhost_log_access_ok(& vs->dev) [L8496] struct vhost_memory *mp ; [L8497] bool __warned ; [L8498] int tmp ; [L8499] int tmp___0 ; [L8500] int tmp___1 ; VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, dev={18446744073709551675:382}, dev={18446744073709551675:382}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L8502] CALL, EXPR debug_lockdep_rcu_enabled() VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L14447] return __VERIFIER_nondet_int(); [L8502] RET, EXPR debug_lockdep_rcu_enabled() VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, debug_lockdep_rcu_enabled()=0, dev={18446744073709551675:382}, dev={18446744073709551675:382}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L8502] tmp = debug_lockdep_rcu_enabled() [L8503] COND FALSE !(tmp != 0 && ! __warned) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, __warned=1, bit = (int )write_page & 7=18446744073709551661, dev={18446744073709551675:382}, dev={18446744073709551675:382}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=0, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L8513] EXPR dev->memory [L8513] mp = dev->memory [L8514] CALL memory_access_ok(dev, mp, 1) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=2, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L8418] int i ; [L8419] int ok ; [L8421] i = 0 VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=2, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(log_all)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, d={18446744073709551675:382}, d={18446744073709551675:382}, i=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, log_all=1, mem={18446744073709551660:18446744073709551646}, mem={18446744073709551660:18446744073709551646}, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L8437] EXPR d->nvqs VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=2, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(log_all)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, d={18446744073709551675:382}, d={18446744073709551675:382}, d->nvqs=365, i=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, log_all=1, mem={18446744073709551660:18446744073709551646}, mem={18446744073709551660:18446744073709551646}, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L8437] COND TRUE d->nvqs > i [L8424] EXPR d->vqs [L8424] CALL ldv_mutex_lock_12(& (d->vqs + (unsigned long )i)->mutex) [L13211] CALL ldv_mutex_lock_mutex(ldv_func_arg1) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=2, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, lock={18446744073709551656:-3}, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L14037] COND FALSE !(ldv_mutex_mutex == 1) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=2, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, lock={18446744073709551656:-3}, lock={18446744073709551656:-3}, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L14039] CALL ldv_error() VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=2, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L13668] reach_error() VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=2, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 115 procedures, 2457 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 96.7s, OverallIterations: 15, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 79.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 19 mSolverCounterUnknown, 29876 SdHoareTripleChecker+Valid, 75.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28504 mSDsluCounter, 157267 SdHoareTripleChecker+Invalid, 70.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 111764 mSDsCounter, 5981 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36221 IncrementalHoareTripleChecker+Invalid, 42221 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5981 mSolverCounterUnsat, 45503 mSDtfsCounter, 36221 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 740 GetRequests, 630 SyntacticMatches, 5 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3371occurred in iteration=6, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 14 MinimizatonAttempts, 998 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 5.9s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 1315 NumberOfCodeBlocks, 1315 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1294 ConstructedInterpolants, 0 QuantifiedInterpolants, 2281 SizeOfPredicates, 38 NumberOfNonLiveVariables, 8997 ConjunctsInSsa, 147 ConjunctsInUnsatCore, 18 InterpolantComputations, 13 PerfectInterpolantSequences, 135/145 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 [2022-07-21 10:18:25,630 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3d776a54fbebbd358d59ab0126298feae1e40360b6fb5e6158cd54ba5ef877f7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 10:18:27,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 10:18:27,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 10:18:27,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 10:18:27,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 10:18:27,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 10:18:27,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 10:18:27,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 10:18:27,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 10:18:27,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 10:18:27,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 10:18:27,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 10:18:27,547 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 10:18:27,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 10:18:27,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 10:18:27,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 10:18:27,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 10:18:27,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 10:18:27,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 10:18:27,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 10:18:27,564 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 10:18:27,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 10:18:27,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 10:18:27,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 10:18:27,569 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 10:18:27,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 10:18:27,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 10:18:27,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 10:18:27,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 10:18:27,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 10:18:27,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 10:18:27,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 10:18:27,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 10:18:27,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 10:18:27,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 10:18:27,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 10:18:27,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 10:18:27,581 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 10:18:27,581 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 10:18:27,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 10:18:27,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 10:18:27,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 10:18:27,584 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 10:18:27,620 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 10:18:27,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 10:18:27,621 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 10:18:27,621 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 10:18:27,622 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 10:18:27,622 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 10:18:27,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 10:18:27,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 10:18:27,623 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 10:18:27,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 10:18:27,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 10:18:27,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 10:18:27,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 10:18:27,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 10:18:27,634 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 10:18:27,634 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 10:18:27,634 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 10:18:27,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 10:18:27,634 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 10:18:27,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 10:18:27,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 10:18:27,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 10:18:27,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 10:18:27,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:18:27,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 10:18:27,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 10:18:27,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 10:18:27,635 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 10:18:27,636 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 10:18:27,636 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 10:18:27,639 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 10:18:27,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 10:18:27,639 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 10:18:27,639 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d776a54fbebbd358d59ab0126298feae1e40360b6fb5e6158cd54ba5ef877f7 [2022-07-21 10:18:27,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 10:18:27,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 10:18:27,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 10:18:27,950 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 10:18:27,954 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 10:18:27,956 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i [2022-07-21 10:18:28,017 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddb657644/f8f0aae15ec94607a4973045873b2739/FLAGf86ca0c7f [2022-07-21 10:18:28,936 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 10:18:28,936 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i [2022-07-21 10:18:29,009 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddb657644/f8f0aae15ec94607a4973045873b2739/FLAGf86ca0c7f [2022-07-21 10:18:29,494 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddb657644/f8f0aae15ec94607a4973045873b2739 [2022-07-21 10:18:29,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 10:18:29,498 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 10:18:29,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 10:18:29,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 10:18:29,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 10:18:29,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:18:29" (1/1) ... [2022-07-21 10:18:29,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b99ded0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:18:29, skipping insertion in model container [2022-07-21 10:18:29,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:18:29" (1/1) ... [2022-07-21 10:18:29,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 10:18:29,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 10:18:32,014 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.ArithmeticException: BigInteger out of int range at java.base/java.math.BigInteger.intValueExact(BigInteger.java:4784) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1009) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:968) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:729) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-21 10:18:32,019 INFO L158 Benchmark]: Toolchain (without parser) took 2520.04ms. Allocated memory was 62.9MB in the beginning and 102.8MB in the end (delta: 39.8MB). Free memory was 37.5MB in the beginning and 56.3MB in the end (delta: -18.8MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. [2022-07-21 10:18:32,020 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 62.9MB. Free memory was 45.0MB in the beginning and 45.0MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 10:18:32,020 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2517.85ms. Allocated memory was 62.9MB in the beginning and 102.8MB in the end (delta: 39.8MB). Free memory was 37.2MB in the beginning and 56.3MB in the end (delta: -19.2MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2022-07-21 10:18:32,022 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 62.9MB. Free memory was 45.0MB in the beginning and 45.0MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2517.85ms. Allocated memory was 62.9MB in the beginning and 102.8MB in the end (delta: 39.8MB). Free memory was 37.2MB in the beginning and 56.3MB in the end (delta: -19.2MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: ArithmeticException: BigInteger out of int range de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: ArithmeticException: BigInteger out of int range: java.base/java.math.BigInteger.intValueExact(BigInteger.java:4784) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ArithmeticException: BigInteger out of int range