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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -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 00:53:20,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 00:53:20,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 00:53:20,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 00:53:20,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 00:53:20,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 00:53:20,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 00:53:20,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 00:53:20,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 00:53:20,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 00:53:20,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 00:53:20,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 00:53:20,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 00:53:20,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 00:53:20,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 00:53:20,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 00:53:20,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 00:53:20,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 00:53:20,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 00:53:20,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 00:53:20,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 00:53:20,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 00:53:20,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 00:53:20,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 00:53:20,859 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 00:53:20,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 00:53:20,860 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 00:53:20,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 00:53:20,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 00:53:20,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 00:53:20,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 00:53:20,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 00:53:20,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 00:53:20,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 00:53:20,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 00:53:20,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 00:53:20,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 00:53:20,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 00:53:20,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 00:53:20,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 00:53:20,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 00:53:20,876 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 00:53:20,897 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 00:53:20,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 00:53:20,900 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 00:53:20,900 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 00:53:20,900 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 00:53:20,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 00:53:20,901 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 00:53:20,901 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 00:53:20,901 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 00:53:20,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 00:53:20,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 00:53:20,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 00:53:20,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 00:53:20,904 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 00:53:20,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 00:53:20,904 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 00:53:20,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 00:53:20,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 00:53:20,905 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 00:53:20,905 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 00:53:20,905 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 00:53:20,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:53:20,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 00:53:20,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 00:53:20,906 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 00:53:20,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 00:53:20,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 00:53:20,907 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 00:53:20,907 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 00:53:21,236 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 00:53:21,259 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 00:53:21,263 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 00:53:21,264 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 00:53:21,265 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 00:53:21,266 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i [2019-10-15 00:53:21,338 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec63b91e9/2d5613dff9de4beebd65dcbbf4bbbe4e/FLAG41392672e [2019-10-15 00:53:22,238 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 00:53:22,240 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i [2019-10-15 00:53:22,295 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec63b91e9/2d5613dff9de4beebd65dcbbf4bbbe4e/FLAG41392672e [2019-10-15 00:53:22,704 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec63b91e9/2d5613dff9de4beebd65dcbbf4bbbe4e [2019-10-15 00:53:22,714 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 00:53:22,716 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 00:53:22,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 00:53:22,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 00:53:22,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 00:53:22,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:53:22" (1/1) ... [2019-10-15 00:53:22,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4af4a2cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:53:22, skipping insertion in model container [2019-10-15 00:53:22,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:53:22" (1/1) ... [2019-10-15 00:53:22,732 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 00:53:22,918 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 00:53:25,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:53:25,413 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 00:53:25,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:53:26,183 INFO L192 MainTranslator]: Completed translation [2019-10-15 00:53:26,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:53:26 WrapperNode [2019-10-15 00:53:26,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 00:53:26,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 00:53:26,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 00:53:26,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 00:53:26,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:53:26" (1/1) ... [2019-10-15 00:53:26,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:53:26" (1/1) ... [2019-10-15 00:53:26,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:53:26" (1/1) ... [2019-10-15 00:53:26,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:53:26" (1/1) ... [2019-10-15 00:53:26,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:53:26" (1/1) ... [2019-10-15 00:53:26,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:53:26" (1/1) ... [2019-10-15 00:53:26,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:53:26" (1/1) ... [2019-10-15 00:53:26,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 00:53:26,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 00:53:26,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 00:53:26,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 00:53:26,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:53:26" (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 00:53:26,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 00:53:26,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 00:53:26,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-15 00:53:26,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~$Pointer$ [2019-10-15 00:53:26,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-15 00:53:26,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2019-10-15 00:53:26,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2019-10-15 00:53:26,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-15 00:53:26,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-15 00:53:26,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-10-15 00:53:26,676 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 00:53:26,676 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 00:53:26,677 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-10-15 00:53:26,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 00:53:26,679 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 00:53:26,679 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-15 00:53:26,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-15 00:53:26,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-15 00:53:26,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-15 00:53:26,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-15 00:53:26,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-15 00:53:26,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-15 00:53:26,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-15 00:53:26,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __find_path_selector_type [2019-10-15 00:53:26,683 INFO L138 BoogieDeclarations]: Found implementation of procedure get_path_selector [2019-10-15 00:53:26,683 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_path_selector [2019-10-15 00:53:26,684 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_path_selector [2019-10-15 00:53:26,684 INFO L138 BoogieDeclarations]: Found implementation of procedure _alloc_path_selector [2019-10-15 00:53:26,685 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_register_path_selector [2019-10-15 00:53:26,685 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_unregister_path_selector [2019-10-15 00:53:26,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_5 [2019-10-15 00:53:26,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_6 [2019-10-15 00:53:26,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_7 [2019-10-15 00:53:26,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_8 [2019-10-15 00:53:26,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_9 [2019-10-15 00:53:26,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_10 [2019-10-15 00:53:26,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_11 [2019-10-15 00:53:26,686 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-15 00:53:26,687 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-15 00:53:26,687 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-15 00:53:26,687 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-15 00:53:26,687 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-15 00:53:26,687 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-15 00:53:26,688 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-10-15 00:53:26,688 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-10-15 00:53:26,688 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-15 00:53:26,688 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2019-10-15 00:53:26,688 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2019-10-15 00:53:26,688 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2019-10-15 00:53:26,688 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2019-10-15 00:53:26,689 INFO L138 BoogieDeclarations]: Found implementation of procedure sigismember [2019-10-15 00:53:26,689 INFO L138 BoogieDeclarations]: Found implementation of procedure io_schedule [2019-10-15 00:53:26,689 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-15 00:53:26,689 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-15 00:53:26,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __fatal_signal_pending [2019-10-15 00:53:26,689 INFO L138 BoogieDeclarations]: Found implementation of procedure fatal_signal_pending [2019-10-15 00:53:26,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-15 00:53:26,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-15 00:53:26,690 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2019-10-15 00:53:26,690 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create_slab_pool [2019-10-15 00:53:26,690 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2019-10-15 00:53:26,690 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_bytes [2019-10-15 00:53:26,690 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pgpath [2019-10-15 00:53:26,691 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pgpath [2019-10-15 00:53:26,691 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_priority_group [2019-10-15 00:53:26,691 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pgpaths [2019-10-15 00:53:26,691 INFO L138 BoogieDeclarations]: Found implementation of procedure free_priority_group [2019-10-15 00:53:26,691 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_multipath [2019-10-15 00:53:26,692 INFO L138 BoogieDeclarations]: Found implementation of procedure free_multipath [2019-10-15 00:53:26,692 INFO L138 BoogieDeclarations]: Found implementation of procedure set_mapinfo [2019-10-15 00:53:26,692 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_mapinfo [2019-10-15 00:53:26,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __pg_init_all_paths [2019-10-15 00:53:26,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __switch_pg [2019-10-15 00:53:26,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __choose_path_in_pg [2019-10-15 00:53:26,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __choose_pgpath [2019-10-15 00:53:26,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __must_push_back [2019-10-15 00:53:26,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __multipath_map [2019-10-15 00:53:26,693 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_map [2019-10-15 00:53:26,694 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_clone_and_map [2019-10-15 00:53:26,694 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_release_clone [2019-10-15 00:53:26,694 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_if_no_path [2019-10-15 00:53:26,695 INFO L138 BoogieDeclarations]: Found implementation of procedure trigger_event [2019-10-15 00:53:26,695 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_path_selector [2019-10-15 00:53:26,695 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_path [2019-10-15 00:53:26,696 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_priority_group [2019-10-15 00:53:26,696 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_hw_handler [2019-10-15 00:53:26,697 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_features [2019-10-15 00:53:26,698 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_ctr [2019-10-15 00:53:26,698 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_wait_for_pg_init_completion [2019-10-15 00:53:26,698 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_multipath_work [2019-10-15 00:53:26,698 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_dtr [2019-10-15 00:53:26,698 INFO L138 BoogieDeclarations]: Found implementation of procedure fail_path [2019-10-15 00:53:26,698 INFO L138 BoogieDeclarations]: Found implementation of procedure reinstate_path [2019-10-15 00:53:26,699 INFO L138 BoogieDeclarations]: Found implementation of procedure action_dev [2019-10-15 00:53:26,699 INFO L138 BoogieDeclarations]: Found implementation of procedure bypass_pg [2019-10-15 00:53:26,699 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_pg_num [2019-10-15 00:53:26,699 INFO L138 BoogieDeclarations]: Found implementation of procedure bypass_pg_num [2019-10-15 00:53:26,699 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_init_limit_reached [2019-10-15 00:53:26,699 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_init_done [2019-10-15 00:53:26,699 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_path [2019-10-15 00:53:26,700 INFO L138 BoogieDeclarations]: Found implementation of procedure noretry_error [2019-10-15 00:53:26,700 INFO L138 BoogieDeclarations]: Found implementation of procedure do_end_io [2019-10-15 00:53:26,700 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_end_io [2019-10-15 00:53:26,700 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_presuspend [2019-10-15 00:53:26,700 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_postsuspend [2019-10-15 00:53:26,700 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_resume [2019-10-15 00:53:26,700 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_status [2019-10-15 00:53:26,701 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_message [2019-10-15 00:53:26,701 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_ioctl [2019-10-15 00:53:26,701 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_iterate_devices [2019-10-15 00:53:26,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __pgpath_busy [2019-10-15 00:53:26,701 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_busy [2019-10-15 00:53:26,701 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_multipath_init [2019-10-15 00:53:26,701 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_multipath_exit [2019-10-15 00:53:26,702 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2019-10-15 00:53:26,702 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_2 [2019-10-15 00:53:26,702 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2019-10-15 00:53:26,702 INFO L138 BoogieDeclarations]: Found implementation of procedure work_init_2 [2019-10-15 00:53:26,703 INFO L138 BoogieDeclarations]: Found implementation of procedure work_init_1 [2019-10-15 00:53:26,703 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_2 [2019-10-15 00:53:26,704 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2019-10-15 00:53:26,704 INFO L138 BoogieDeclarations]: Found implementation of procedure invoke_work_1 [2019-10-15 00:53:26,704 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2019-10-15 00:53:26,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_3 [2019-10-15 00:53:26,705 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2019-10-15 00:53:26,705 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_2 [2019-10-15 00:53:26,705 INFO L138 BoogieDeclarations]: Found implementation of procedure invoke_work_2 [2019-10-15 00:53:26,705 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 00:53:26,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2019-10-15 00:53:26,706 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-15 00:53:26,706 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-15 00:53:26,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_21 [2019-10-15 00:53:26,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_22 [2019-10-15 00:53:26,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_23 [2019-10-15 00:53:26,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_24 [2019-10-15 00:53:26,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_25 [2019-10-15 00:53:26,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_26 [2019-10-15 00:53:26,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_27 [2019-10-15 00:53:26,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_work_28 [2019-10-15 00:53:26,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_29 [2019-10-15 00:53:26,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_30 [2019-10-15 00:53:26,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_31 [2019-10-15 00:53:26,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-15 00:53:26,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-15 00:53:26,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-15 00:53:26,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-15 00:53:26,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-15 00:53:26,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-10-15 00:53:26,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-10-15 00:53:26,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-10-15 00:53:26,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-10-15 00:53:26,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-10-15 00:53:26,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 00:53:26,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_workqueue_key [2019-10-15 00:53:26,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __blkdev_driver_ioctl [2019-10-15 00:53:26,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-15 00:53:26,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2019-10-15 00:53:26,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-15 00:53:26,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __msecs_to_jiffies [2019-10-15 00:53:26,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-15 00:53:26,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-15 00:53:26,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2019-10-15 00:53:26,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-15 00:53:26,723 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-10-15 00:53:26,723 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-15 00:53:26,723 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-10-15 00:53:26,723 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-15 00:53:26,724 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2019-10-15 00:53:26,724 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_get_request [2019-10-15 00:53:26,724 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_lld_busy [2019-10-15 00:53:26,724 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_put_request [2019-10-15 00:53:26,724 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2019-10-15 00:53:26,724 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_consume_args [2019-10-15 00:53:26,724 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2019-10-15 00:53:26,725 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_reserved_rq_based_ios [2019-10-15 00:53:26,725 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_noflush_suspending [2019-10-15 00:53:26,725 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_path_uevent [2019-10-15 00:53:26,725 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2019-10-15 00:53:26,725 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_read_arg [2019-10-15 00:53:26,725 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_read_arg_group [2019-10-15 00:53:26,725 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_register_target [2019-10-15 00:53:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_shift_arg [2019-10-15 00:53:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_suspended [2019-10-15 00:53:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_event [2019-10-15 00:53:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_get_mode [2019-10-15 00:53:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_run_md_queue_async [2019-10-15 00:53:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_unregister_target [2019-10-15 00:53:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2019-10-15 00:53:26,727 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2019-10-15 00:53:26,727 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2019-10-15 00:53:26,727 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2019-10-15 00:53:26,727 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2019-10-15 00:53:26,727 INFO L138 BoogieDeclarations]: Found implementation of procedure io_schedule_timeout [2019-10-15 00:53:26,727 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_create [2019-10-15 00:53:26,727 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2019-10-15 00:53:26,728 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrdup [2019-10-15 00:53:26,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 00:53:26,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_preresume_3 [2019-10-15 00:53:26,728 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-15 00:53:26,728 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2019-10-15 00:53:26,728 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_alloc [2019-10-15 00:53:26,728 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create [2019-10-15 00:53:26,729 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2019-10-15 00:53:26,729 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2019-10-15 00:53:26,729 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-15 00:53:26,729 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-15 00:53:26,729 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-15 00:53:26,729 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2019-10-15 00:53:26,729 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2019-10-15 00:53:26,730 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2019-10-15 00:53:26,730 INFO L138 BoogieDeclarations]: Found implementation of procedure scnprintf [2019-10-15 00:53:26,730 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_activate [2019-10-15 00:53:26,730 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_attach [2019-10-15 00:53:26,730 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_attached_handler_name [2019-10-15 00:53:26,730 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_detach [2019-10-15 00:53:26,730 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_handler_exist [2019-10-15 00:53:26,731 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_set_params [2019-10-15 00:53:26,731 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_verify_blk_ioctl [2019-10-15 00:53:26,731 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2019-10-15 00:53:26,731 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2019-10-15 00:53:26,731 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2019-10-15 00:53:26,731 INFO L138 BoogieDeclarations]: Found implementation of procedure default_wake_function [2019-10-15 00:53:26,731 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 00:53:26,732 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 00:53:26,732 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-15 00:53:26,732 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-15 00:53:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 00:53:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-15 00:53:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-10-15 00:53:26,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 00:53:26,733 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-15 00:53:26,733 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-15 00:53:26,733 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-10-15 00:53:26,733 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2019-10-15 00:53:26,733 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2019-10-15 00:53:26,733 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2019-10-15 00:53:26,734 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2019-10-15 00:53:26,734 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2019-10-15 00:53:26,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_5 [2019-10-15 00:53:26,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_7 [2019-10-15 00:53:26,734 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2019-10-15 00:53:26,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_6 [2019-10-15 00:53:26,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_9 [2019-10-15 00:53:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2019-10-15 00:53:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_8 [2019-10-15 00:53:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2019-10-15 00:53:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_10 [2019-10-15 00:53:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_11 [2019-10-15 00:53:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-10-15 00:53:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-10-15 00:53:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 00:53:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-15 00:53:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 00:53:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 00:53:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-15 00:53:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 00:53:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 00:53:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 00:53:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 00:53:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 00:53:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 00:53:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 00:53:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-15 00:53:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-15 00:53:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-15 00:53:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-15 00:53:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-15 00:53:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-15 00:53:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-15 00:53:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-15 00:53:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2019-10-15 00:53:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2019-10-15 00:53:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure dm_register_path_selector [2019-10-15 00:53:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure dm_unregister_path_selector [2019-10-15 00:53:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_path_selector [2019-10-15 00:53:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_path_selector [2019-10-15 00:53:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 00:53:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure __find_path_selector_type [2019-10-15 00:53:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure get_path_selector [2019-10-15 00:53:26,740 INFO L130 BoogieDeclarations]: Found specification of procedure _alloc_path_selector [2019-10-15 00:53:26,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 00:53:26,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 00:53:26,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 00:53:26,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-15 00:53:26,740 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-15 00:53:26,740 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-15 00:53:26,740 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-15 00:53:26,741 INFO L130 BoogieDeclarations]: Found specification of procedure scnprintf [2019-10-15 00:53:26,741 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2019-10-15 00:53:26,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-15 00:53:26,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-15 00:53:26,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-15 00:53:26,741 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-15 00:53:26,741 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-15 00:53:26,742 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-15 00:53:26,742 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-15 00:53:26,742 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-15 00:53:26,742 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2019-10-15 00:53:26,742 INFO L130 BoogieDeclarations]: Found specification of procedure kstrdup [2019-10-15 00:53:26,742 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2019-10-15 00:53:26,742 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-15 00:53:26,742 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-15 00:53:26,743 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-10-15 00:53:26,743 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-15 00:53:26,743 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2019-10-15 00:53:26,743 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-15 00:53:26,743 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-10-15 00:53:26,743 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-15 00:53:26,743 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-10-15 00:53:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-15 00:53:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-15 00:53:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-10-15 00:53:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-10-15 00:53:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-15 00:53:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure default_wake_function [2019-10-15 00:53:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-15 00:53:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2019-10-15 00:53:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2019-10-15 00:53:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-15 00:53:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-15 00:53:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-15 00:53:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-15 00:53:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure __msecs_to_jiffies [2019-10-15 00:53:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2019-10-15 00:53:26,746 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2019-10-15 00:53:26,746 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2019-10-15 00:53:26,746 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2019-10-15 00:53:26,746 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_workqueue_key [2019-10-15 00:53:26,746 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2019-10-15 00:53:26,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_29 [2019-10-15 00:53:26,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_30 [2019-10-15 00:53:26,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_31 [2019-10-15 00:53:26,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_21 [2019-10-15 00:53:26,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_23 [2019-10-15 00:53:26,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_22 [2019-10-15 00:53:26,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_25 [2019-10-15 00:53:26,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_24 [2019-10-15 00:53:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_26 [2019-10-15 00:53:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_27 [2019-10-15 00:53:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2019-10-15 00:53:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_work_28 [2019-10-15 00:53:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2019-10-15 00:53:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2019-10-15 00:53:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2019-10-15 00:53:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure sigismember [2019-10-15 00:53:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure io_schedule_timeout [2019-10-15 00:53:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure io_schedule [2019-10-15 00:53:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-15 00:53:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-15 00:53:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure __fatal_signal_pending [2019-10-15 00:53:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure fatal_signal_pending [2019-10-15 00:53:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_create [2019-10-15 00:53:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2019-10-15 00:53:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-15 00:53:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2019-10-15 00:53:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_2 [2019-10-15 00:53:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2019-10-15 00:53:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure work_init_2 [2019-10-15 00:53:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure work_init_1 [2019-10-15 00:53:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_2 [2019-10-15 00:53:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure invoke_work_1 [2019-10-15 00:53:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2019-10-15 00:53:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_3 [2019-10-15 00:53:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_2 [2019-10-15 00:53:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure invoke_work_2 [2019-10-15 00:53:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2019-10-15 00:53:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create [2019-10-15 00:53:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2019-10-15 00:53:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_alloc [2019-10-15 00:53:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2019-10-15 00:53:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_alloc_slab [2019-10-15 00:53:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free_slab [2019-10-15 00:53:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create_slab_pool [2019-10-15 00:53:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure blk_put_request [2019-10-15 00:53:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure blk_get_request [2019-10-15 00:53:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure blk_lld_busy [2019-10-15 00:53:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_verify_blk_ioctl [2019-10-15 00:53:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2019-10-15 00:53:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_bytes [2019-10-15 00:53:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure __blkdev_driver_ioctl [2019-10-15 00:53:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2019-10-15 00:53:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2019-10-15 00:53:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure dm_register_target [2019-10-15 00:53:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure dm_unregister_target [2019-10-15 00:53:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure dm_read_arg [2019-10-15 00:53:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure dm_read_arg_group [2019-10-15 00:53:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure dm_shift_arg [2019-10-15 00:53:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure dm_consume_args [2019-10-15 00:53:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure dm_suspended [2019-10-15 00:53:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure dm_noflush_suspending [2019-10-15 00:53:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_get_mode [2019-10-15 00:53:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_event [2019-10-15 00:53:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_run_md_queue_async [2019-10-15 00:53:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_reserved_rq_based_ios [2019-10-15 00:53:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure dm_path_uevent [2019-10-15 00:53:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_activate [2019-10-15 00:53:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_handler_exist [2019-10-15 00:53:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_attach [2019-10-15 00:53:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_detach [2019-10-15 00:53:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_attached_handler_name [2019-10-15 00:53:26,756 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_set_params [2019-10-15 00:53:26,756 INFO L130 BoogieDeclarations]: Found specification of procedure trigger_event [2019-10-15 00:53:26,756 INFO L130 BoogieDeclarations]: Found specification of procedure activate_path [2019-10-15 00:53:26,756 INFO L130 BoogieDeclarations]: Found specification of procedure __pgpath_busy [2019-10-15 00:53:26,756 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pgpath [2019-10-15 00:53:26,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 00:53:26,756 INFO L130 BoogieDeclarations]: Found specification of procedure free_pgpath [2019-10-15 00:53:26,757 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_priority_group [2019-10-15 00:53:26,757 INFO L130 BoogieDeclarations]: Found specification of procedure free_pgpaths [2019-10-15 00:53:26,757 INFO L130 BoogieDeclarations]: Found specification of procedure free_priority_group [2019-10-15 00:53:26,757 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-15 00:53:26,757 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_multipath [2019-10-15 00:53:26,757 INFO L130 BoogieDeclarations]: Found specification of procedure free_multipath [2019-10-15 00:53:26,757 INFO L130 BoogieDeclarations]: Found specification of procedure set_mapinfo [2019-10-15 00:53:26,757 INFO L130 BoogieDeclarations]: Found specification of procedure clear_mapinfo [2019-10-15 00:53:26,758 INFO L130 BoogieDeclarations]: Found specification of procedure __pg_init_all_paths [2019-10-15 00:53:26,758 INFO L130 BoogieDeclarations]: Found specification of procedure __switch_pg [2019-10-15 00:53:26,758 INFO L130 BoogieDeclarations]: Found specification of procedure __choose_path_in_pg [2019-10-15 00:53:26,758 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~$Pointer$ [2019-10-15 00:53:26,758 INFO L130 BoogieDeclarations]: Found specification of procedure __choose_pgpath [2019-10-15 00:53:26,758 INFO L130 BoogieDeclarations]: Found specification of procedure __must_push_back [2019-10-15 00:53:26,758 INFO L130 BoogieDeclarations]: Found specification of procedure __multipath_map [2019-10-15 00:53:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-15 00:53:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_map [2019-10-15 00:53:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_clone_and_map [2019-10-15 00:53:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_release_clone [2019-10-15 00:53:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure queue_if_no_path [2019-10-15 00:53:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure parse_path_selector [2019-10-15 00:53:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2019-10-15 00:53:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure parse_path [2019-10-15 00:53:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2019-10-15 00:53:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure parse_priority_group [2019-10-15 00:53:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure parse_hw_handler [2019-10-15 00:53:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure parse_features [2019-10-15 00:53:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_ctr [2019-10-15 00:53:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_wait_for_pg_init_completion [2019-10-15 00:53:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure flush_multipath_work [2019-10-15 00:53:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_dtr [2019-10-15 00:53:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure fail_path [2019-10-15 00:53:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-15 00:53:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure reinstate_path [2019-10-15 00:53:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-15 00:53:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure action_dev [2019-10-15 00:53:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-10-15 00:53:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure bypass_pg [2019-10-15 00:53:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure switch_pg_num [2019-10-15 00:53:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure bypass_pg_num [2019-10-15 00:53:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure pg_init_limit_reached [2019-10-15 00:53:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure pg_init_done [2019-10-15 00:53:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure noretry_error [2019-10-15 00:53:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure do_end_io [2019-10-15 00:53:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_end_io [2019-10-15 00:53:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_presuspend [2019-10-15 00:53:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_postsuspend [2019-10-15 00:53:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_resume [2019-10-15 00:53:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_status [2019-10-15 00:53:26,763 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 00:53:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_message [2019-10-15 00:53:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_ioctl [2019-10-15 00:53:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_iterate_devices [2019-10-15 00:53:26,763 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 00:53:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_busy [2019-10-15 00:53:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure dm_multipath_init [2019-10-15 00:53:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure dm_multipath_exit [2019-10-15 00:53:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 00:53:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 00:53:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_preresume_3 [2019-10-15 00:53:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 00:53:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-15 00:53:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-15 00:53:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-10-15 00:53:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-10-15 00:53:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-10-15 00:53:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 00:53:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 00:53:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-15 00:53:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-15 00:53:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 00:53:26,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 00:53:26,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 00:53:26,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 00:53:26,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 00:53:28,193 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-15 00:53:34,597 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-10-15 00:53:35,667 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 00:53:35,668 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 00:53:35,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:53:35 BoogieIcfgContainer [2019-10-15 00:53:35,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 00:53:35,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 00:53:35,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 00:53:35,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 00:53:35,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:53:22" (1/3) ... [2019-10-15 00:53:35,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a5be35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:53:35, skipping insertion in model container [2019-10-15 00:53:35,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:53:26" (2/3) ... [2019-10-15 00:53:35,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a5be35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:53:35, skipping insertion in model container [2019-10-15 00:53:35,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:53:35" (3/3) ... [2019-10-15 00:53:35,679 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 00:53:35,692 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 00:53:35,709 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 00:53:35,721 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 00:53:35,768 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 00:53:35,768 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 00:53:35,768 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 00:53:35,768 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 00:53:35,768 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 00:53:35,768 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 00:53:35,768 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 00:53:35,769 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 00:53:35,843 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states. [2019-10-15 00:53:35,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2019-10-15 00:53:35,884 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:53:35,886 INFO L380 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 9, 9, 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] [2019-10-15 00:53:35,889 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:53:35,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:53:35,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1898597506, now seen corresponding path program 1 times [2019-10-15 00:53:35,906 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:53:35,906 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401623316] [2019-10-15 00:53:35,907 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:35,907 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:35,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:53:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:53:37,128 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 852 trivial. 0 not checked. [2019-10-15 00:53:37,129 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401623316] [2019-10-15 00:53:37,130 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:53:37,130 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:53:37,130 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591558959] [2019-10-15 00:53:37,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:53:37,137 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:53:37,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:53:37,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:53:37,155 INFO L87 Difference]: Start difference. First operand 2075 states. Second operand 3 states. [2019-10-15 00:53:37,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:53:37,466 INFO L93 Difference]: Finished difference Result 5867 states and 7959 transitions. [2019-10-15 00:53:37,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:53:37,468 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 267 [2019-10-15 00:53:37,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:53:37,519 INFO L225 Difference]: With dead ends: 5867 [2019-10-15 00:53:37,519 INFO L226 Difference]: Without dead ends: 3888 [2019-10-15 00:53:37,536 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 00:53:37,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3888 states. [2019-10-15 00:53:37,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3888 to 3885. [2019-10-15 00:53:37,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3885 states. [2019-10-15 00:53:37,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3885 states to 3885 states and 5236 transitions. [2019-10-15 00:53:37,867 INFO L78 Accepts]: Start accepts. Automaton has 3885 states and 5236 transitions. Word has length 267 [2019-10-15 00:53:37,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:53:37,869 INFO L462 AbstractCegarLoop]: Abstraction has 3885 states and 5236 transitions. [2019-10-15 00:53:37,869 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:53:37,869 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 5236 transitions. [2019-10-15 00:53:37,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2019-10-15 00:53:37,887 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:53:37,888 INFO L380 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:53:37,888 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:53:37,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:53:37,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1173116233, now seen corresponding path program 1 times [2019-10-15 00:53:37,889 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:53:37,890 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051764882] [2019-10-15 00:53:37,890 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:37,890 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:37,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:53:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:53:39,337 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 852 trivial. 0 not checked. [2019-10-15 00:53:39,337 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051764882] [2019-10-15 00:53:39,338 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:53:39,338 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:53:39,338 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15054738] [2019-10-15 00:53:39,341 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:53:39,341 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:53:39,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:53:39,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:53:39,342 INFO L87 Difference]: Start difference. First operand 3885 states and 5236 transitions. Second operand 3 states. [2019-10-15 00:53:39,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:53:39,990 INFO L93 Difference]: Finished difference Result 8389 states and 11272 transitions. [2019-10-15 00:53:39,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:53:39,991 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 366 [2019-10-15 00:53:39,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:53:40,024 INFO L225 Difference]: With dead ends: 8389 [2019-10-15 00:53:40,024 INFO L226 Difference]: Without dead ends: 4570 [2019-10-15 00:53:40,043 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 00:53:40,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4570 states. [2019-10-15 00:53:40,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4570 to 4564. [2019-10-15 00:53:40,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4564 states. [2019-10-15 00:53:40,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4564 states to 4564 states and 6116 transitions. [2019-10-15 00:53:40,276 INFO L78 Accepts]: Start accepts. Automaton has 4564 states and 6116 transitions. Word has length 366 [2019-10-15 00:53:40,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:53:40,278 INFO L462 AbstractCegarLoop]: Abstraction has 4564 states and 6116 transitions. [2019-10-15 00:53:40,278 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:53:40,278 INFO L276 IsEmpty]: Start isEmpty. Operand 4564 states and 6116 transitions. [2019-10-15 00:53:40,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2019-10-15 00:53:40,300 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:53:40,300 INFO L380 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:53:40,300 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:53:40,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:53:40,301 INFO L82 PathProgramCache]: Analyzing trace with hash 425216159, now seen corresponding path program 1 times [2019-10-15 00:53:40,301 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:53:40,301 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460813398] [2019-10-15 00:53:40,302 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:40,302 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:40,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:53:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:53:41,142 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 948 trivial. 0 not checked. [2019-10-15 00:53:41,142 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460813398] [2019-10-15 00:53:41,143 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:53:41,143 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 00:53:41,143 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84012374] [2019-10-15 00:53:41,144 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 00:53:41,145 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:53:41,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 00:53:41,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 00:53:41,145 INFO L87 Difference]: Start difference. First operand 4564 states and 6116 transitions. Second operand 5 states. [2019-10-15 00:53:43,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:53:43,293 INFO L93 Difference]: Finished difference Result 9075 states and 12164 transitions. [2019-10-15 00:53:43,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 00:53:43,293 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 405 [2019-10-15 00:53:43,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:53:43,330 INFO L225 Difference]: With dead ends: 9075 [2019-10-15 00:53:43,330 INFO L226 Difference]: Without dead ends: 4579 [2019-10-15 00:53:43,353 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 00:53:43,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4579 states. [2019-10-15 00:53:43,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4579 to 4571. [2019-10-15 00:53:43,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4571 states. [2019-10-15 00:53:43,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4571 states to 4571 states and 6121 transitions. [2019-10-15 00:53:43,568 INFO L78 Accepts]: Start accepts. Automaton has 4571 states and 6121 transitions. Word has length 405 [2019-10-15 00:53:43,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:53:43,569 INFO L462 AbstractCegarLoop]: Abstraction has 4571 states and 6121 transitions. [2019-10-15 00:53:43,569 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 00:53:43,569 INFO L276 IsEmpty]: Start isEmpty. Operand 4571 states and 6121 transitions. [2019-10-15 00:53:43,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2019-10-15 00:53:43,590 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:53:43,591 INFO L380 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:53:43,591 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:53:43,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:53:43,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1735748844, now seen corresponding path program 1 times [2019-10-15 00:53:43,592 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:53:43,592 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311454120] [2019-10-15 00:53:43,593 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:43,593 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:43,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:53:44,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:53:44,681 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 951 trivial. 0 not checked. [2019-10-15 00:53:44,682 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311454120] [2019-10-15 00:53:44,682 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:53:44,682 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-15 00:53:44,682 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889318299] [2019-10-15 00:53:44,683 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 00:53:44,684 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:53:44,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 00:53:44,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2019-10-15 00:53:44,684 INFO L87 Difference]: Start difference. First operand 4571 states and 6121 transitions. Second operand 14 states. [2019-10-15 00:53:45,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:53:45,153 INFO L93 Difference]: Finished difference Result 9108 states and 12219 transitions. [2019-10-15 00:53:45,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 00:53:45,154 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 413 [2019-10-15 00:53:45,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:53:45,185 INFO L225 Difference]: With dead ends: 9108 [2019-10-15 00:53:45,185 INFO L226 Difference]: Without dead ends: 4615 [2019-10-15 00:53:45,207 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-15 00:53:45,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4615 states. [2019-10-15 00:53:45,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4615 to 4609. [2019-10-15 00:53:45,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4609 states. [2019-10-15 00:53:45,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4609 states to 4609 states and 6168 transitions. [2019-10-15 00:53:45,393 INFO L78 Accepts]: Start accepts. Automaton has 4609 states and 6168 transitions. Word has length 413 [2019-10-15 00:53:45,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:53:45,394 INFO L462 AbstractCegarLoop]: Abstraction has 4609 states and 6168 transitions. [2019-10-15 00:53:45,394 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 00:53:45,394 INFO L276 IsEmpty]: Start isEmpty. Operand 4609 states and 6168 transitions. [2019-10-15 00:53:45,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2019-10-15 00:53:45,417 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:53:45,417 INFO L380 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:53:45,418 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:53:45,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:53:45,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1041101837, now seen corresponding path program 1 times [2019-10-15 00:53:45,419 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:53:45,419 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202347007] [2019-10-15 00:53:45,419 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:45,419 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:45,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:53:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:53:46,233 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 951 trivial. 0 not checked. [2019-10-15 00:53:46,236 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202347007] [2019-10-15 00:53:46,236 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:53:46,237 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 00:53:46,237 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353172909] [2019-10-15 00:53:46,239 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 00:53:46,239 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:53:46,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 00:53:46,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 00:53:46,240 INFO L87 Difference]: Start difference. First operand 4609 states and 6168 transitions. Second operand 4 states. [2019-10-15 00:53:46,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:53:46,451 INFO L93 Difference]: Finished difference Result 9168 states and 12331 transitions. [2019-10-15 00:53:46,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 00:53:46,451 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 413 [2019-10-15 00:53:46,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:53:46,481 INFO L225 Difference]: With dead ends: 9168 [2019-10-15 00:53:46,482 INFO L226 Difference]: Without dead ends: 4637 [2019-10-15 00:53:46,511 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 00:53:46,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4637 states. [2019-10-15 00:53:46,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4637 to 4637. [2019-10-15 00:53:46,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4637 states. [2019-10-15 00:53:46,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4637 states to 4637 states and 6206 transitions. [2019-10-15 00:53:46,704 INFO L78 Accepts]: Start accepts. Automaton has 4637 states and 6206 transitions. Word has length 413 [2019-10-15 00:53:46,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:53:46,706 INFO L462 AbstractCegarLoop]: Abstraction has 4637 states and 6206 transitions. [2019-10-15 00:53:46,706 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 00:53:46,706 INFO L276 IsEmpty]: Start isEmpty. Operand 4637 states and 6206 transitions. [2019-10-15 00:53:46,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2019-10-15 00:53:46,720 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:53:46,720 INFO L380 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 9, 9, 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, 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 00:53:46,720 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:53:46,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:53:46,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1070448735, now seen corresponding path program 1 times [2019-10-15 00:53:46,721 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:53:46,721 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374628295] [2019-10-15 00:53:46,722 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:46,722 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:46,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:53:47,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:53:47,503 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 951 trivial. 0 not checked. [2019-10-15 00:53:47,503 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374628295] [2019-10-15 00:53:47,504 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:53:47,504 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 00:53:47,504 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520853247] [2019-10-15 00:53:47,505 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 00:53:47,505 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:53:47,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 00:53:47,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 00:53:47,505 INFO L87 Difference]: Start difference. First operand 4637 states and 6206 transitions. Second operand 5 states. [2019-10-15 00:53:47,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:53:47,672 INFO L93 Difference]: Finished difference Result 9210 states and 12383 transitions. [2019-10-15 00:53:47,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 00:53:47,673 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 418 [2019-10-15 00:53:47,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:53:47,719 INFO L225 Difference]: With dead ends: 9210 [2019-10-15 00:53:47,720 INFO L226 Difference]: Without dead ends: 4651 [2019-10-15 00:53:47,742 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 00:53:47,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4651 states. [2019-10-15 00:53:47,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4651 to 4645. [2019-10-15 00:53:47,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4645 states. [2019-10-15 00:53:47,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4645 states to 4645 states and 6220 transitions. [2019-10-15 00:53:47,908 INFO L78 Accepts]: Start accepts. Automaton has 4645 states and 6220 transitions. Word has length 418 [2019-10-15 00:53:47,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:53:47,908 INFO L462 AbstractCegarLoop]: Abstraction has 4645 states and 6220 transitions. [2019-10-15 00:53:47,909 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 00:53:47,909 INFO L276 IsEmpty]: Start isEmpty. Operand 4645 states and 6220 transitions. [2019-10-15 00:53:47,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2019-10-15 00:53:47,922 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:53:47,922 INFO L380 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 9, 9, 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, 1, 1, 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 00:53:47,923 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:53:47,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:53:47,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1091182016, now seen corresponding path program 1 times [2019-10-15 00:53:47,924 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:53:47,924 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11865683] [2019-10-15 00:53:47,924 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:47,924 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:47,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:53:48,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:53:49,560 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 895 trivial. 0 not checked. [2019-10-15 00:53:49,561 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11865683] [2019-10-15 00:53:49,561 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563791420] [2019-10-15 00:53:49,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true