java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 02:47:47,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:47:47,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:47:47,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:47:47,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:47:47,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:47:47,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:47:47,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:47:47,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:47:47,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:47:47,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:47:47,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:47:47,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:47:47,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:47:47,337 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:47:47,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:47:47,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:47:47,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:47:47,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:47:47,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:47:47,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:47:47,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:47:47,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:47:47,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:47:47,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 02:47:47,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 02:47:47,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 02:47:47,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 02:47:47,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 02:47:47,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 02:47:47,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 02:47:47,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 02:47:47,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 02:47:47,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 02:47:47,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 02:47:47,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 02:47:47,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 02:47:47,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 02:47:47,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:47:47,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:47:47,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:47:47,379 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 02:47:47,399 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:47:47,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:47:47,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:47:47,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:47:47,402 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:47:47,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:47:47,402 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:47:47,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:47:47,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:47:47,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:47:47,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:47:47,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:47:47,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:47:47,405 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:47:47,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:47:47,405 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:47:47,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:47:47,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:47:47,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:47:47,406 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:47:47,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:47:47,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:47:47,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:47:47,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:47:47,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:47:47,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:47:47,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:47:47,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:47:47,408 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 02:47:47,719 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:47:47,733 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:47:47,736 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:47:47,738 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:47:47,738 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:47:47,739 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i [2019-10-15 02:47:47,800 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfa3aa8ce/ba0063ffb8ab4b9b9b4d46be1a870e99/FLAG9f39c8688 [2019-10-15 02:47:48,685 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:47:48,687 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i [2019-10-15 02:47:48,734 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfa3aa8ce/ba0063ffb8ab4b9b9b4d46be1a870e99/FLAG9f39c8688 [2019-10-15 02:47:49,091 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfa3aa8ce/ba0063ffb8ab4b9b9b4d46be1a870e99 [2019-10-15 02:47:49,106 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:47:49,108 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:47:49,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:47:49,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:47:49,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:47:49,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:47:49" (1/1) ... [2019-10-15 02:47:49,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d8ce6b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:47:49, skipping insertion in model container [2019-10-15 02:47:49,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:47:49" (1/1) ... [2019-10-15 02:47:49,124 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:47:49,277 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:47:51,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:47:51,910 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:47:52,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:47:52,795 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:47:52,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:47:52 WrapperNode [2019-10-15 02:47:52,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:47:52,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:47:52,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:47:52,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:47:52,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:47:52" (1/1) ... [2019-10-15 02:47:52,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:47:52" (1/1) ... [2019-10-15 02:47:52,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:47:52" (1/1) ... [2019-10-15 02:47:52,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:47:52" (1/1) ... [2019-10-15 02:47:53,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:47:52" (1/1) ... [2019-10-15 02:47:53,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:47:52" (1/1) ... [2019-10-15 02:47:53,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:47:52" (1/1) ... [2019-10-15 02:47:53,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:47:53,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:47:53,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:47:53,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:47:53,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:47:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:47:53,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:47:53,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:47:53,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-15 02:47:53,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~$Pointer$ [2019-10-15 02:47:53,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-15 02:47:53,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2019-10-15 02:47:53,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2019-10-15 02:47:53,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-15 02:47:53,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-15 02:47:53,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-10-15 02:47:53,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~status_type_t~0~X~$Pointer$~X~int~TO~int [2019-10-15 02:47:53,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2019-10-15 02:47:53,357 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-10-15 02:47:53,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 02:47:53,357 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 02:47:53,357 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-15 02:47:53,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-15 02:47:53,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-15 02:47:53,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-15 02:47:53,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-15 02:47:53,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-15 02:47:53,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-15 02:47:53,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-15 02:47:53,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __find_path_selector_type [2019-10-15 02:47:53,364 INFO L138 BoogieDeclarations]: Found implementation of procedure get_path_selector [2019-10-15 02:47:53,364 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_path_selector [2019-10-15 02:47:53,365 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_path_selector [2019-10-15 02:47:53,365 INFO L138 BoogieDeclarations]: Found implementation of procedure _alloc_path_selector [2019-10-15 02:47:53,365 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_register_path_selector [2019-10-15 02:47:53,365 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_unregister_path_selector [2019-10-15 02:47:53,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_5 [2019-10-15 02:47:53,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_6 [2019-10-15 02:47:53,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_7 [2019-10-15 02:47:53,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_8 [2019-10-15 02:47:53,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_9 [2019-10-15 02:47:53,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_10 [2019-10-15 02:47:53,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_11 [2019-10-15 02:47:53,366 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-15 02:47:53,366 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-15 02:47:53,366 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-15 02:47:53,367 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-15 02:47:53,367 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-15 02:47:53,367 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-15 02:47:53,367 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-10-15 02:47:53,367 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-10-15 02:47:53,367 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-15 02:47:53,368 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2019-10-15 02:47:53,368 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2019-10-15 02:47:53,368 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2019-10-15 02:47:53,368 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2019-10-15 02:47:53,368 INFO L138 BoogieDeclarations]: Found implementation of procedure sigismember [2019-10-15 02:47:53,368 INFO L138 BoogieDeclarations]: Found implementation of procedure io_schedule [2019-10-15 02:47:53,369 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-15 02:47:53,369 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-15 02:47:53,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __fatal_signal_pending [2019-10-15 02:47:53,369 INFO L138 BoogieDeclarations]: Found implementation of procedure fatal_signal_pending [2019-10-15 02:47:53,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-15 02:47:53,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-15 02:47:53,370 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2019-10-15 02:47:53,370 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create_slab_pool [2019-10-15 02:47:53,371 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2019-10-15 02:47:53,371 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_bytes [2019-10-15 02:47:53,371 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pgpath [2019-10-15 02:47:53,371 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pgpath [2019-10-15 02:47:53,371 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_priority_group [2019-10-15 02:47:53,372 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pgpaths [2019-10-15 02:47:53,372 INFO L138 BoogieDeclarations]: Found implementation of procedure free_priority_group [2019-10-15 02:47:53,372 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_multipath [2019-10-15 02:47:53,372 INFO L138 BoogieDeclarations]: Found implementation of procedure free_multipath [2019-10-15 02:47:53,373 INFO L138 BoogieDeclarations]: Found implementation of procedure set_mapinfo [2019-10-15 02:47:53,373 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_mapinfo [2019-10-15 02:47:53,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __pg_init_all_paths [2019-10-15 02:47:53,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __switch_pg [2019-10-15 02:47:53,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __choose_path_in_pg [2019-10-15 02:47:53,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __choose_pgpath [2019-10-15 02:47:53,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __must_push_back [2019-10-15 02:47:53,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __multipath_map [2019-10-15 02:47:53,376 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_map [2019-10-15 02:47:53,377 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_clone_and_map [2019-10-15 02:47:53,377 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_release_clone [2019-10-15 02:47:53,377 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_if_no_path [2019-10-15 02:47:53,377 INFO L138 BoogieDeclarations]: Found implementation of procedure trigger_event [2019-10-15 02:47:53,377 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_path_selector [2019-10-15 02:47:53,377 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_path [2019-10-15 02:47:53,378 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_priority_group [2019-10-15 02:47:53,378 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_hw_handler [2019-10-15 02:47:53,378 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_features [2019-10-15 02:47:53,378 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_ctr [2019-10-15 02:47:53,378 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_wait_for_pg_init_completion [2019-10-15 02:47:53,378 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_multipath_work [2019-10-15 02:47:53,379 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_dtr [2019-10-15 02:47:53,379 INFO L138 BoogieDeclarations]: Found implementation of procedure fail_path [2019-10-15 02:47:53,379 INFO L138 BoogieDeclarations]: Found implementation of procedure reinstate_path [2019-10-15 02:47:53,379 INFO L138 BoogieDeclarations]: Found implementation of procedure action_dev [2019-10-15 02:47:53,379 INFO L138 BoogieDeclarations]: Found implementation of procedure bypass_pg [2019-10-15 02:47:53,380 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_pg_num [2019-10-15 02:47:53,380 INFO L138 BoogieDeclarations]: Found implementation of procedure bypass_pg_num [2019-10-15 02:47:53,380 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_init_limit_reached [2019-10-15 02:47:53,380 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_init_done [2019-10-15 02:47:53,380 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_path [2019-10-15 02:47:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure noretry_error [2019-10-15 02:47:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure do_end_io [2019-10-15 02:47:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_end_io [2019-10-15 02:47:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_presuspend [2019-10-15 02:47:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_postsuspend [2019-10-15 02:47:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_resume [2019-10-15 02:47:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_status [2019-10-15 02:47:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_message [2019-10-15 02:47:53,383 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_ioctl [2019-10-15 02:47:53,383 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_iterate_devices [2019-10-15 02:47:53,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __pgpath_busy [2019-10-15 02:47:53,383 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_busy [2019-10-15 02:47:53,383 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_multipath_init [2019-10-15 02:47:53,384 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_multipath_exit [2019-10-15 02:47:53,384 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2019-10-15 02:47:53,384 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_2 [2019-10-15 02:47:53,384 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2019-10-15 02:47:53,384 INFO L138 BoogieDeclarations]: Found implementation of procedure work_init_2 [2019-10-15 02:47:53,384 INFO L138 BoogieDeclarations]: Found implementation of procedure work_init_1 [2019-10-15 02:47:53,385 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_2 [2019-10-15 02:47:53,385 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2019-10-15 02:47:53,385 INFO L138 BoogieDeclarations]: Found implementation of procedure invoke_work_1 [2019-10-15 02:47:53,385 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2019-10-15 02:47:53,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_3 [2019-10-15 02:47:53,385 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2019-10-15 02:47:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_2 [2019-10-15 02:47:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure invoke_work_2 [2019-10-15 02:47:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:47:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2019-10-15 02:47:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-15 02:47:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-15 02:47:53,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_21 [2019-10-15 02:47:53,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_22 [2019-10-15 02:47:53,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_23 [2019-10-15 02:47:53,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_24 [2019-10-15 02:47:53,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_25 [2019-10-15 02:47:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_26 [2019-10-15 02:47:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_27 [2019-10-15 02:47:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_work_28 [2019-10-15 02:47:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_29 [2019-10-15 02:47:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_30 [2019-10-15 02:47:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_31 [2019-10-15 02:47:53,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-15 02:47:53,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-15 02:47:53,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-15 02:47:53,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-15 02:47:53,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-15 02:47:53,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-10-15 02:47:53,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-10-15 02:47:53,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-10-15 02:47:53,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-10-15 02:47:53,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-10-15 02:47:53,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 02:47:53,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_workqueue_key [2019-10-15 02:47:53,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __blkdev_driver_ioctl [2019-10-15 02:47:53,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-15 02:47:53,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2019-10-15 02:47:53,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-15 02:47:53,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __msecs_to_jiffies [2019-10-15 02:47:53,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-15 02:47:53,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-15 02:47:53,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2019-10-15 02:47:53,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-15 02:47:53,403 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-10-15 02:47:53,403 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-15 02:47:53,403 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-10-15 02:47:53,404 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-15 02:47:53,404 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2019-10-15 02:47:53,404 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_get_request [2019-10-15 02:47:53,404 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_lld_busy [2019-10-15 02:47:53,405 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_put_request [2019-10-15 02:47:53,405 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2019-10-15 02:47:53,405 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_consume_args [2019-10-15 02:47:53,405 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2019-10-15 02:47:53,405 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_reserved_rq_based_ios [2019-10-15 02:47:53,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_noflush_suspending [2019-10-15 02:47:53,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_path_uevent [2019-10-15 02:47:53,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2019-10-15 02:47:53,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_read_arg [2019-10-15 02:47:53,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_read_arg_group [2019-10-15 02:47:53,407 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_register_target [2019-10-15 02:47:53,407 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_shift_arg [2019-10-15 02:47:53,407 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_suspended [2019-10-15 02:47:53,407 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_event [2019-10-15 02:47:53,407 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_get_mode [2019-10-15 02:47:53,408 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_run_md_queue_async [2019-10-15 02:47:53,408 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_unregister_target [2019-10-15 02:47:53,408 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2019-10-15 02:47:53,408 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2019-10-15 02:47:53,408 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2019-10-15 02:47:53,409 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2019-10-15 02:47:53,409 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2019-10-15 02:47:53,409 INFO L138 BoogieDeclarations]: Found implementation of procedure io_schedule_timeout [2019-10-15 02:47:53,409 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_create [2019-10-15 02:47:53,409 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2019-10-15 02:47:53,410 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrdup [2019-10-15 02:47:53,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 02:47:53,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_preresume_3 [2019-10-15 02:47:53,410 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-15 02:47:53,411 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2019-10-15 02:47:53,411 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_alloc [2019-10-15 02:47:53,411 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create [2019-10-15 02:47:53,411 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2019-10-15 02:47:53,411 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2019-10-15 02:47:53,411 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-15 02:47:53,412 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-15 02:47:53,412 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-15 02:47:53,412 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2019-10-15 02:47:53,412 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2019-10-15 02:47:53,412 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2019-10-15 02:47:53,413 INFO L138 BoogieDeclarations]: Found implementation of procedure scnprintf [2019-10-15 02:47:53,413 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_activate [2019-10-15 02:47:53,413 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_attach [2019-10-15 02:47:53,413 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_attached_handler_name [2019-10-15 02:47:53,413 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_detach [2019-10-15 02:47:53,414 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_handler_exist [2019-10-15 02:47:53,414 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_set_params [2019-10-15 02:47:53,414 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_verify_blk_ioctl [2019-10-15 02:47:53,414 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2019-10-15 02:47:53,415 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2019-10-15 02:47:53,415 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2019-10-15 02:47:53,415 INFO L138 BoogieDeclarations]: Found implementation of procedure default_wake_function [2019-10-15 02:47:53,415 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 02:47:53,415 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 02:47:53,416 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-15 02:47:53,416 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-15 02:47:53,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:47:53,416 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-15 02:47:53,417 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-10-15 02:47:53,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 02:47:53,417 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-15 02:47:53,417 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-15 02:47:53,417 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-10-15 02:47:53,418 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2019-10-15 02:47:53,418 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2019-10-15 02:47:53,418 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2019-10-15 02:47:53,418 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2019-10-15 02:47:53,418 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2019-10-15 02:47:53,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_5 [2019-10-15 02:47:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_7 [2019-10-15 02:47:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2019-10-15 02:47:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_6 [2019-10-15 02:47:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_9 [2019-10-15 02:47:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2019-10-15 02:47:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_8 [2019-10-15 02:47:53,420 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2019-10-15 02:47:53,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_10 [2019-10-15 02:47:53,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_11 [2019-10-15 02:47:53,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-10-15 02:47:53,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-10-15 02:47:53,420 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 02:47:53,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-15 02:47:53,421 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 02:47:53,421 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 02:47:53,421 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-15 02:47:53,421 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 02:47:53,421 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 02:47:53,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 02:47:53,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 02:47:53,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 02:47:53,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 02:47:53,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 02:47:53,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-15 02:47:53,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-15 02:47:53,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-15 02:47:53,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-15 02:47:53,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-15 02:47:53,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-15 02:47:53,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-15 02:47:53,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-15 02:47:53,427 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2019-10-15 02:47:53,427 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2019-10-15 02:47:53,431 INFO L130 BoogieDeclarations]: Found specification of procedure dm_register_path_selector [2019-10-15 02:47:53,431 INFO L130 BoogieDeclarations]: Found specification of procedure dm_unregister_path_selector [2019-10-15 02:47:53,431 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_path_selector [2019-10-15 02:47:53,431 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_path_selector [2019-10-15 02:47:53,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 02:47:53,431 INFO L130 BoogieDeclarations]: Found specification of procedure __find_path_selector_type [2019-10-15 02:47:53,432 INFO L130 BoogieDeclarations]: Found specification of procedure get_path_selector [2019-10-15 02:47:53,432 INFO L130 BoogieDeclarations]: Found specification of procedure _alloc_path_selector [2019-10-15 02:47:53,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 02:47:53,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 02:47:53,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 02:47:53,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-15 02:47:53,433 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-15 02:47:53,434 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-15 02:47:53,434 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-15 02:47:53,434 INFO L130 BoogieDeclarations]: Found specification of procedure scnprintf [2019-10-15 02:47:53,434 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2019-10-15 02:47:53,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-15 02:47:53,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-15 02:47:53,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-15 02:47:53,435 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-15 02:47:53,435 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-15 02:47:53,435 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-15 02:47:53,435 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-15 02:47:53,436 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-15 02:47:53,436 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2019-10-15 02:47:53,436 INFO L130 BoogieDeclarations]: Found specification of procedure kstrdup [2019-10-15 02:47:53,436 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2019-10-15 02:47:53,436 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-15 02:47:53,437 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-15 02:47:53,437 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-10-15 02:47:53,437 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-15 02:47:53,437 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2019-10-15 02:47:53,438 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-15 02:47:53,438 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-10-15 02:47:53,438 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-15 02:47:53,438 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-10-15 02:47:53,438 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-15 02:47:53,438 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-15 02:47:53,439 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-10-15 02:47:53,439 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-10-15 02:47:53,439 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-15 02:47:53,439 INFO L130 BoogieDeclarations]: Found specification of procedure default_wake_function [2019-10-15 02:47:53,439 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-15 02:47:53,440 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2019-10-15 02:47:53,440 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2019-10-15 02:47:53,440 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-15 02:47:53,440 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-15 02:47:53,440 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-15 02:47:53,440 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-15 02:47:53,441 INFO L130 BoogieDeclarations]: Found specification of procedure __msecs_to_jiffies [2019-10-15 02:47:53,441 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2019-10-15 02:47:53,441 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2019-10-15 02:47:53,441 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2019-10-15 02:47:53,442 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2019-10-15 02:47:53,442 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_workqueue_key [2019-10-15 02:47:53,442 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2019-10-15 02:47:53,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_29 [2019-10-15 02:47:53,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_30 [2019-10-15 02:47:53,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_31 [2019-10-15 02:47:53,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_21 [2019-10-15 02:47:53,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_23 [2019-10-15 02:47:53,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_22 [2019-10-15 02:47:53,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_25 [2019-10-15 02:47:53,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_24 [2019-10-15 02:47:53,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_26 [2019-10-15 02:47:53,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_27 [2019-10-15 02:47:53,444 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2019-10-15 02:47:53,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_work_28 [2019-10-15 02:47:53,444 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2019-10-15 02:47:53,444 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2019-10-15 02:47:53,445 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2019-10-15 02:47:53,445 INFO L130 BoogieDeclarations]: Found specification of procedure sigismember [2019-10-15 02:47:53,445 INFO L130 BoogieDeclarations]: Found specification of procedure io_schedule_timeout [2019-10-15 02:47:53,445 INFO L130 BoogieDeclarations]: Found specification of procedure io_schedule [2019-10-15 02:47:53,445 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-15 02:47:53,446 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-15 02:47:53,446 INFO L130 BoogieDeclarations]: Found specification of procedure __fatal_signal_pending [2019-10-15 02:47:53,446 INFO L130 BoogieDeclarations]: Found specification of procedure fatal_signal_pending [2019-10-15 02:47:53,446 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_create [2019-10-15 02:47:53,446 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2019-10-15 02:47:53,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-15 02:47:53,447 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2019-10-15 02:47:53,447 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_2 [2019-10-15 02:47:53,447 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2019-10-15 02:47:53,447 INFO L130 BoogieDeclarations]: Found specification of procedure work_init_2 [2019-10-15 02:47:53,448 INFO L130 BoogieDeclarations]: Found specification of procedure work_init_1 [2019-10-15 02:47:53,448 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_2 [2019-10-15 02:47:53,448 INFO L130 BoogieDeclarations]: Found specification of procedure invoke_work_1 [2019-10-15 02:47:53,448 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2019-10-15 02:47:53,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_3 [2019-10-15 02:47:53,449 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_2 [2019-10-15 02:47:53,449 INFO L130 BoogieDeclarations]: Found specification of procedure invoke_work_2 [2019-10-15 02:47:53,449 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2019-10-15 02:47:53,449 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create [2019-10-15 02:47:53,449 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2019-10-15 02:47:53,450 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_alloc [2019-10-15 02:47:53,450 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2019-10-15 02:47:53,450 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_alloc_slab [2019-10-15 02:47:53,450 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free_slab [2019-10-15 02:47:53,450 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create_slab_pool [2019-10-15 02:47:53,450 INFO L130 BoogieDeclarations]: Found specification of procedure blk_put_request [2019-10-15 02:47:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure blk_get_request [2019-10-15 02:47:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure blk_lld_busy [2019-10-15 02:47:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_verify_blk_ioctl [2019-10-15 02:47:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2019-10-15 02:47:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_bytes [2019-10-15 02:47:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure __blkdev_driver_ioctl [2019-10-15 02:47:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2019-10-15 02:47:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2019-10-15 02:47:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure dm_register_target [2019-10-15 02:47:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure dm_unregister_target [2019-10-15 02:47:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure dm_read_arg [2019-10-15 02:47:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure dm_read_arg_group [2019-10-15 02:47:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure dm_shift_arg [2019-10-15 02:47:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure dm_consume_args [2019-10-15 02:47:53,453 INFO L130 BoogieDeclarations]: Found specification of procedure dm_suspended [2019-10-15 02:47:53,456 INFO L130 BoogieDeclarations]: Found specification of procedure dm_noflush_suspending [2019-10-15 02:47:53,457 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_get_mode [2019-10-15 02:47:53,457 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_event [2019-10-15 02:47:53,457 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_run_md_queue_async [2019-10-15 02:47:53,457 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_reserved_rq_based_ios [2019-10-15 02:47:53,457 INFO L130 BoogieDeclarations]: Found specification of procedure dm_path_uevent [2019-10-15 02:47:53,459 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_activate [2019-10-15 02:47:53,459 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_handler_exist [2019-10-15 02:47:53,459 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_attach [2019-10-15 02:47:53,459 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_detach [2019-10-15 02:47:53,460 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_attached_handler_name [2019-10-15 02:47:53,460 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_set_params [2019-10-15 02:47:53,461 INFO L130 BoogieDeclarations]: Found specification of procedure trigger_event [2019-10-15 02:47:53,461 INFO L130 BoogieDeclarations]: Found specification of procedure activate_path [2019-10-15 02:47:53,461 INFO L130 BoogieDeclarations]: Found specification of procedure __pgpath_busy [2019-10-15 02:47:53,461 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pgpath [2019-10-15 02:47:53,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:47:53,462 INFO L130 BoogieDeclarations]: Found specification of procedure free_pgpath [2019-10-15 02:47:53,462 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_priority_group [2019-10-15 02:47:53,462 INFO L130 BoogieDeclarations]: Found specification of procedure free_pgpaths [2019-10-15 02:47:53,462 INFO L130 BoogieDeclarations]: Found specification of procedure free_priority_group [2019-10-15 02:47:53,462 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-15 02:47:53,462 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_multipath [2019-10-15 02:47:53,463 INFO L130 BoogieDeclarations]: Found specification of procedure free_multipath [2019-10-15 02:47:53,463 INFO L130 BoogieDeclarations]: Found specification of procedure set_mapinfo [2019-10-15 02:47:53,463 INFO L130 BoogieDeclarations]: Found specification of procedure clear_mapinfo [2019-10-15 02:47:53,463 INFO L130 BoogieDeclarations]: Found specification of procedure __pg_init_all_paths [2019-10-15 02:47:53,464 INFO L130 BoogieDeclarations]: Found specification of procedure __switch_pg [2019-10-15 02:47:53,464 INFO L130 BoogieDeclarations]: Found specification of procedure __choose_path_in_pg [2019-10-15 02:47:53,464 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~$Pointer$ [2019-10-15 02:47:53,464 INFO L130 BoogieDeclarations]: Found specification of procedure __choose_pgpath [2019-10-15 02:47:53,464 INFO L130 BoogieDeclarations]: Found specification of procedure __must_push_back [2019-10-15 02:47:53,465 INFO L130 BoogieDeclarations]: Found specification of procedure __multipath_map [2019-10-15 02:47:53,465 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-15 02:47:53,465 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_map [2019-10-15 02:47:53,465 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_clone_and_map [2019-10-15 02:47:53,465 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_release_clone [2019-10-15 02:47:53,466 INFO L130 BoogieDeclarations]: Found specification of procedure queue_if_no_path [2019-10-15 02:47:53,466 INFO L130 BoogieDeclarations]: Found specification of procedure parse_path_selector [2019-10-15 02:47:53,466 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2019-10-15 02:47:53,466 INFO L130 BoogieDeclarations]: Found specification of procedure parse_path [2019-10-15 02:47:53,466 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2019-10-15 02:47:53,466 INFO L130 BoogieDeclarations]: Found specification of procedure parse_priority_group [2019-10-15 02:47:53,467 INFO L130 BoogieDeclarations]: Found specification of procedure parse_hw_handler [2019-10-15 02:47:53,467 INFO L130 BoogieDeclarations]: Found specification of procedure parse_features [2019-10-15 02:47:53,467 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_ctr [2019-10-15 02:47:53,467 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_wait_for_pg_init_completion [2019-10-15 02:47:53,467 INFO L130 BoogieDeclarations]: Found specification of procedure flush_multipath_work [2019-10-15 02:47:53,468 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_dtr [2019-10-15 02:47:53,468 INFO L130 BoogieDeclarations]: Found specification of procedure fail_path [2019-10-15 02:47:53,468 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-15 02:47:53,468 INFO L130 BoogieDeclarations]: Found specification of procedure reinstate_path [2019-10-15 02:47:53,468 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-15 02:47:53,469 INFO L130 BoogieDeclarations]: Found specification of procedure action_dev [2019-10-15 02:47:53,469 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-10-15 02:47:53,469 INFO L130 BoogieDeclarations]: Found specification of procedure bypass_pg [2019-10-15 02:47:53,469 INFO L130 BoogieDeclarations]: Found specification of procedure switch_pg_num [2019-10-15 02:47:53,469 INFO L130 BoogieDeclarations]: Found specification of procedure bypass_pg_num [2019-10-15 02:47:53,470 INFO L130 BoogieDeclarations]: Found specification of procedure pg_init_limit_reached [2019-10-15 02:47:53,470 INFO L130 BoogieDeclarations]: Found specification of procedure pg_init_done [2019-10-15 02:47:53,470 INFO L130 BoogieDeclarations]: Found specification of procedure noretry_error [2019-10-15 02:47:53,470 INFO L130 BoogieDeclarations]: Found specification of procedure do_end_io [2019-10-15 02:47:53,470 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_end_io [2019-10-15 02:47:53,471 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_presuspend [2019-10-15 02:47:53,471 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_postsuspend [2019-10-15 02:47:53,471 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_resume [2019-10-15 02:47:53,471 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_status [2019-10-15 02:47:53,471 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~status_type_t~0~X~$Pointer$~X~int~TO~int [2019-10-15 02:47:53,471 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_message [2019-10-15 02:47:53,472 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_ioctl [2019-10-15 02:47:53,472 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_iterate_devices [2019-10-15 02:47:53,472 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2019-10-15 02:47:53,472 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_busy [2019-10-15 02:47:53,472 INFO L130 BoogieDeclarations]: Found specification of procedure dm_multipath_init [2019-10-15 02:47:53,473 INFO L130 BoogieDeclarations]: Found specification of procedure dm_multipath_exit [2019-10-15 02:47:53,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 02:47:53,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 02:47:53,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_preresume_3 [2019-10-15 02:47:53,473 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:47:53,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-15 02:47:53,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-15 02:47:53,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-10-15 02:47:53,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-10-15 02:47:53,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-10-15 02:47:53,475 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 02:47:53,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 02:47:53,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-15 02:47:53,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-15 02:47:53,475 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 02:47:53,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:47:53,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 02:47:53,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 02:47:53,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:47:55,272 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-15 02:48:01,954 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-10-15 02:48:11,667 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:48:11,667 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 02:48:11,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:48:11 BoogieIcfgContainer [2019-10-15 02:48:11,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:48:11,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:48:11,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:48:11,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:48:11,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:47:49" (1/3) ... [2019-10-15 02:48:11,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b86c6c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:48:11, skipping insertion in model container [2019-10-15 02:48:11,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:47:52" (2/3) ... [2019-10-15 02:48:11,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b86c6c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:48:11, skipping insertion in model container [2019-10-15 02:48:11,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:48:11" (3/3) ... [2019-10-15 02:48:11,679 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i [2019-10-15 02:48:11,692 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:48:11,706 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:48:11,723 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:48:11,769 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:48:11,769 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:48:11,769 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:48:11,769 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:48:11,770 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:48:11,770 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:48:11,770 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:48:11,770 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:48:11,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1761 states. [2019-10-15 02:48:11,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2019-10-15 02:48:11,869 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:48:11,871 INFO L380 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:48:11,874 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:48:11,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:48:11,883 INFO L82 PathProgramCache]: Analyzing trace with hash -903480340, now seen corresponding path program 1 times [2019-10-15 02:48:11,896 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:48:11,897 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361467723] [2019-10-15 02:48:11,897 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:48:11,897 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:48:11,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:48:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:48:13,162 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2019-10-15 02:48:13,162 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361467723] [2019-10-15 02:48:13,163 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:48:13,164 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:48:13,164 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250722733] [2019-10-15 02:48:13,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:48:13,170 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:48:13,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:48:13,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:48:13,187 INFO L87 Difference]: Start difference. First operand 1761 states. Second operand 3 states. [2019-10-15 02:48:13,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:48:13,478 INFO L93 Difference]: Finished difference Result 4963 states and 6764 transitions. [2019-10-15 02:48:13,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:48:13,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 220 [2019-10-15 02:48:13,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:48:13,520 INFO L225 Difference]: With dead ends: 4963 [2019-10-15 02:48:13,520 INFO L226 Difference]: Without dead ends: 3286 [2019-10-15 02:48:13,535 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:48:13,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3286 states. [2019-10-15 02:48:13,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3286 to 3279. [2019-10-15 02:48:13,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3279 states. [2019-10-15 02:48:13,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3279 states to 3279 states and 4436 transitions. [2019-10-15 02:48:13,800 INFO L78 Accepts]: Start accepts. Automaton has 3279 states and 4436 transitions. Word has length 220 [2019-10-15 02:48:13,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:48:13,801 INFO L462 AbstractCegarLoop]: Abstraction has 3279 states and 4436 transitions. [2019-10-15 02:48:13,802 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:48:13,802 INFO L276 IsEmpty]: Start isEmpty. Operand 3279 states and 4436 transitions. [2019-10-15 02:48:13,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2019-10-15 02:48:13,816 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:48:13,817 INFO L380 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:48:13,817 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:48:13,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:48:13,817 INFO L82 PathProgramCache]: Analyzing trace with hash 932183022, now seen corresponding path program 1 times [2019-10-15 02:48:13,818 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:48:13,818 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190646533] [2019-10-15 02:48:13,818 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:48:13,818 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:48:13,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:48:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:48:15,293 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2019-10-15 02:48:15,294 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190646533] [2019-10-15 02:48:15,294 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:48:15,294 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:48:15,294 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619662232] [2019-10-15 02:48:15,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:48:15,298 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:48:15,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:48:15,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:48:15,298 INFO L87 Difference]: Start difference. First operand 3279 states and 4436 transitions. Second operand 3 states. [2019-10-15 02:48:15,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:48:15,941 INFO L93 Difference]: Finished difference Result 7080 states and 9545 transitions. [2019-10-15 02:48:15,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:48:15,942 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 305 [2019-10-15 02:48:15,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:48:15,970 INFO L225 Difference]: With dead ends: 7080 [2019-10-15 02:48:15,970 INFO L226 Difference]: Without dead ends: 3863 [2019-10-15 02:48:15,987 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:48:15,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3863 states. [2019-10-15 02:48:16,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3863 to 3857. [2019-10-15 02:48:16,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3857 states. [2019-10-15 02:48:16,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3857 states to 3857 states and 5185 transitions. [2019-10-15 02:48:16,172 INFO L78 Accepts]: Start accepts. Automaton has 3857 states and 5185 transitions. Word has length 305 [2019-10-15 02:48:16,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:48:16,173 INFO L462 AbstractCegarLoop]: Abstraction has 3857 states and 5185 transitions. [2019-10-15 02:48:16,173 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:48:16,173 INFO L276 IsEmpty]: Start isEmpty. Operand 3857 states and 5185 transitions. [2019-10-15 02:48:16,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2019-10-15 02:48:16,185 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:48:16,186 INFO L380 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 9, 9, 9, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:48:16,186 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:48:16,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:48:16,187 INFO L82 PathProgramCache]: Analyzing trace with hash 80888008, now seen corresponding path program 1 times [2019-10-15 02:48:16,187 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:48:16,187 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11185703] [2019-10-15 02:48:16,187 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:48:16,188 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:48:16,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:48:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:48:16,955 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2019-10-15 02:48:16,955 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11185703] [2019-10-15 02:48:16,955 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:48:16,956 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 02:48:16,956 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519718845] [2019-10-15 02:48:16,957 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 02:48:16,958 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:48:16,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 02:48:16,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:48:16,959 INFO L87 Difference]: Start difference. First operand 3857 states and 5185 transitions. Second operand 5 states. [2019-10-15 02:48:19,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:48:19,414 INFO L93 Difference]: Finished difference Result 7668 states and 10309 transitions. [2019-10-15 02:48:19,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 02:48:19,415 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 339 [2019-10-15 02:48:19,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:48:19,446 INFO L225 Difference]: With dead ends: 7668 [2019-10-15 02:48:19,447 INFO L226 Difference]: Without dead ends: 3872 [2019-10-15 02:48:19,466 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:48:19,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3872 states. [2019-10-15 02:48:19,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3872 to 3864. [2019-10-15 02:48:19,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3864 states. [2019-10-15 02:48:19,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3864 states to 3864 states and 5190 transitions. [2019-10-15 02:48:19,719 INFO L78 Accepts]: Start accepts. Automaton has 3864 states and 5190 transitions. Word has length 339 [2019-10-15 02:48:19,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:48:19,721 INFO L462 AbstractCegarLoop]: Abstraction has 3864 states and 5190 transitions. [2019-10-15 02:48:19,722 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 02:48:19,722 INFO L276 IsEmpty]: Start isEmpty. Operand 3864 states and 5190 transitions. [2019-10-15 02:48:19,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2019-10-15 02:48:19,748 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:48:19,749 INFO L380 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 9, 9, 9, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:48:19,749 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:48:19,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:48:19,750 INFO L82 PathProgramCache]: Analyzing trace with hash -2026972563, now seen corresponding path program 1 times [2019-10-15 02:48:19,751 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:48:19,752 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827467128] [2019-10-15 02:48:19,752 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:48:19,752 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:48:19,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:48:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:48:20,627 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 723 trivial. 0 not checked. [2019-10-15 02:48:20,627 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827467128] [2019-10-15 02:48:20,627 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:48:20,628 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 02:48:20,628 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212711368] [2019-10-15 02:48:20,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 02:48:20,630 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:48:20,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 02:48:20,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 02:48:20,631 INFO L87 Difference]: Start difference. First operand 3864 states and 5190 transitions. Second operand 4 states. [2019-10-15 02:48:20,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:48:20,895 INFO L93 Difference]: Finished difference Result 7679 states and 10374 transitions. [2019-10-15 02:48:20,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 02:48:20,896 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 346 [2019-10-15 02:48:20,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:48:20,921 INFO L225 Difference]: With dead ends: 7679 [2019-10-15 02:48:20,921 INFO L226 Difference]: Without dead ends: 3886 [2019-10-15 02:48:20,937 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:48:20,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3886 states. [2019-10-15 02:48:21,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3886 to 3886. [2019-10-15 02:48:21,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3886 states. [2019-10-15 02:48:21,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3886 states to 3886 states and 5220 transitions. [2019-10-15 02:48:21,122 INFO L78 Accepts]: Start accepts. Automaton has 3886 states and 5220 transitions. Word has length 346 [2019-10-15 02:48:21,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:48:21,123 INFO L462 AbstractCegarLoop]: Abstraction has 3886 states and 5220 transitions. [2019-10-15 02:48:21,123 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 02:48:21,123 INFO L276 IsEmpty]: Start isEmpty. Operand 3886 states and 5220 transitions. [2019-10-15 02:48:21,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2019-10-15 02:48:21,145 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:48:21,145 INFO L380 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 9, 9, 9, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:48:21,145 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:48:21,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:48:21,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1117427197, now seen corresponding path program 1 times [2019-10-15 02:48:21,146 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:48:21,146 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702809472] [2019-10-15 02:48:21,146 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:48:21,147 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:48:21,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:48:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat