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-f4eb214f-m [2019-10-13 20:54:21,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 20:54:21,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 20:54:21,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 20:54:21,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 20:54:21,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 20:54:21,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 20:54:21,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 20:54:21,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 20:54:21,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 20:54:21,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 20:54:21,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 20:54:21,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 20:54:21,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 20:54:21,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 20:54:21,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 20:54:21,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 20:54:21,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 20:54:21,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 20:54:21,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 20:54:21,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 20:54:21,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 20:54:21,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 20:54:21,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 20:54:21,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 20:54:21,114 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 20:54:21,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 20:54:21,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 20:54:21,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 20:54:21,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 20:54:21,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 20:54:21,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 20:54:21,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 20:54:21,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 20:54:21,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 20:54:21,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 20:54:21,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 20:54:21,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 20:54:21,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 20:54:21,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 20:54:21,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 20:54:21,123 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 [2019-10-13 20:54:21,136 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 20:54:21,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 20:54:21,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 20:54:21,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 20:54:21,138 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 20:54:21,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 20:54:21,139 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 20:54:21,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 20:54:21,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 20:54:21,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 20:54:21,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 20:54:21,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 20:54:21,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 20:54:21,140 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 20:54:21,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 20:54:21,140 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 20:54:21,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 20:54:21,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 20:54:21,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 20:54:21,141 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 20:54:21,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 20:54:21,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:54:21,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 20:54:21,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 20:54:21,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 20:54:21,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 20:54:21,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 20:54:21,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 20:54:21,143 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 [2019-10-13 20:54:21,412 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 20:54:21,425 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 20:54:21,428 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 20:54:21,430 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 20:54:21,430 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 20:54:21,431 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i [2019-10-13 20:54:21,498 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdc731ddb/53f371ff48624a07a2498131959911e2/FLAGb89a5cf31 [2019-10-13 20:54:22,285 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 20:54:22,286 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i [2019-10-13 20:54:22,322 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdc731ddb/53f371ff48624a07a2498131959911e2/FLAGb89a5cf31 [2019-10-13 20:54:22,811 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdc731ddb/53f371ff48624a07a2498131959911e2 [2019-10-13 20:54:22,820 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 20:54:22,821 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 20:54:22,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 20:54:22,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 20:54:22,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 20:54:22,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:54:22" (1/1) ... [2019-10-13 20:54:22,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a069adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:22, skipping insertion in model container [2019-10-13 20:54:22,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:54:22" (1/1) ... [2019-10-13 20:54:22,837 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 20:54:23,002 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 20:54:25,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:54:25,369 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 20:54:25,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:54:26,275 INFO L192 MainTranslator]: Completed translation [2019-10-13 20:54:26,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:26 WrapperNode [2019-10-13 20:54:26,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 20:54:26,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 20:54:26,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 20:54:26,277 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 20:54:26,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:26" (1/1) ... [2019-10-13 20:54:26,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:26" (1/1) ... [2019-10-13 20:54:26,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:26" (1/1) ... [2019-10-13 20:54:26,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:26" (1/1) ... [2019-10-13 20:54:26,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:26" (1/1) ... [2019-10-13 20:54:26,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:26" (1/1) ... [2019-10-13 20:54:26,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:26" (1/1) ... [2019-10-13 20:54:26,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 20:54:26,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 20:54:26,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 20:54:26,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 20:54:26,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:26" (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 [2019-10-13 20:54:26,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 20:54:26,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 20:54:26,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 20:54:26,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~$Pointer$ [2019-10-13 20:54:26,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-13 20:54:26,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2019-10-13 20:54:26,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2019-10-13 20:54:26,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 20:54:26,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-13 20:54:26,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-10-13 20:54:26,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~status_type_t~0~X~$Pointer$~X~int~TO~int [2019-10-13 20:54:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2019-10-13 20:54:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-10-13 20:54:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 20:54:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 20:54:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 20:54:26,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 20:54:26,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 20:54:26,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-13 20:54:26,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-13 20:54:26,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 20:54:26,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 20:54:26,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 20:54:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __find_path_selector_type [2019-10-13 20:54:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure get_path_selector [2019-10-13 20:54:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_path_selector [2019-10-13 20:54:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_path_selector [2019-10-13 20:54:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure _alloc_path_selector [2019-10-13 20:54:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_register_path_selector [2019-10-13 20:54:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_unregister_path_selector [2019-10-13 20:54:26,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_5 [2019-10-13 20:54:26,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_6 [2019-10-13 20:54:26,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_7 [2019-10-13 20:54:26,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_8 [2019-10-13 20:54:26,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_9 [2019-10-13 20:54:26,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_10 [2019-10-13 20:54:26,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_11 [2019-10-13 20:54:26,789 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-13 20:54:26,789 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-13 20:54:26,790 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-13 20:54:26,790 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-13 20:54:26,790 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-13 20:54:26,790 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 20:54:26,790 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-10-13 20:54:26,790 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-10-13 20:54:26,790 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-13 20:54:26,791 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2019-10-13 20:54:26,791 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2019-10-13 20:54:26,791 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2019-10-13 20:54:26,791 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2019-10-13 20:54:26,791 INFO L138 BoogieDeclarations]: Found implementation of procedure sigismember [2019-10-13 20:54:26,792 INFO L138 BoogieDeclarations]: Found implementation of procedure io_schedule [2019-10-13 20:54:26,792 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-13 20:54:26,792 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-13 20:54:26,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __fatal_signal_pending [2019-10-13 20:54:26,792 INFO L138 BoogieDeclarations]: Found implementation of procedure fatal_signal_pending [2019-10-13 20:54:26,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 20:54:26,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 20:54:26,793 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2019-10-13 20:54:26,793 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create_slab_pool [2019-10-13 20:54:26,793 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2019-10-13 20:54:26,793 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_bytes [2019-10-13 20:54:26,794 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pgpath [2019-10-13 20:54:26,794 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pgpath [2019-10-13 20:54:26,794 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_priority_group [2019-10-13 20:54:26,795 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pgpaths [2019-10-13 20:54:26,795 INFO L138 BoogieDeclarations]: Found implementation of procedure free_priority_group [2019-10-13 20:54:26,795 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_multipath [2019-10-13 20:54:26,795 INFO L138 BoogieDeclarations]: Found implementation of procedure free_multipath [2019-10-13 20:54:26,795 INFO L138 BoogieDeclarations]: Found implementation of procedure set_mapinfo [2019-10-13 20:54:26,795 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_mapinfo [2019-10-13 20:54:26,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __pg_init_all_paths [2019-10-13 20:54:26,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __switch_pg [2019-10-13 20:54:26,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __choose_path_in_pg [2019-10-13 20:54:26,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __choose_pgpath [2019-10-13 20:54:26,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __must_push_back [2019-10-13 20:54:26,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __multipath_map [2019-10-13 20:54:26,797 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_map [2019-10-13 20:54:26,797 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_clone_and_map [2019-10-13 20:54:26,798 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_release_clone [2019-10-13 20:54:26,798 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_if_no_path [2019-10-13 20:54:26,798 INFO L138 BoogieDeclarations]: Found implementation of procedure trigger_event [2019-10-13 20:54:26,799 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_path_selector [2019-10-13 20:54:26,799 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_path [2019-10-13 20:54:26,799 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_priority_group [2019-10-13 20:54:26,800 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_hw_handler [2019-10-13 20:54:26,800 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_features [2019-10-13 20:54:26,801 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_ctr [2019-10-13 20:54:26,801 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_wait_for_pg_init_completion [2019-10-13 20:54:26,801 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_multipath_work [2019-10-13 20:54:26,801 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_dtr [2019-10-13 20:54:26,801 INFO L138 BoogieDeclarations]: Found implementation of procedure fail_path [2019-10-13 20:54:26,802 INFO L138 BoogieDeclarations]: Found implementation of procedure reinstate_path [2019-10-13 20:54:26,802 INFO L138 BoogieDeclarations]: Found implementation of procedure action_dev [2019-10-13 20:54:26,802 INFO L138 BoogieDeclarations]: Found implementation of procedure bypass_pg [2019-10-13 20:54:26,802 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_pg_num [2019-10-13 20:54:26,802 INFO L138 BoogieDeclarations]: Found implementation of procedure bypass_pg_num [2019-10-13 20:54:26,802 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_init_limit_reached [2019-10-13 20:54:26,802 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_init_done [2019-10-13 20:54:26,803 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_path [2019-10-13 20:54:26,803 INFO L138 BoogieDeclarations]: Found implementation of procedure noretry_error [2019-10-13 20:54:26,803 INFO L138 BoogieDeclarations]: Found implementation of procedure do_end_io [2019-10-13 20:54:26,803 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_end_io [2019-10-13 20:54:26,803 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_presuspend [2019-10-13 20:54:26,803 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_postsuspend [2019-10-13 20:54:26,803 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_resume [2019-10-13 20:54:26,804 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_status [2019-10-13 20:54:26,804 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_message [2019-10-13 20:54:26,804 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_ioctl [2019-10-13 20:54:26,804 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_iterate_devices [2019-10-13 20:54:26,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __pgpath_busy [2019-10-13 20:54:26,804 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_busy [2019-10-13 20:54:26,804 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_multipath_init [2019-10-13 20:54:26,805 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_multipath_exit [2019-10-13 20:54:26,805 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2019-10-13 20:54:26,805 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_2 [2019-10-13 20:54:26,805 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2019-10-13 20:54:26,806 INFO L138 BoogieDeclarations]: Found implementation of procedure work_init_2 [2019-10-13 20:54:26,806 INFO L138 BoogieDeclarations]: Found implementation of procedure work_init_1 [2019-10-13 20:54:26,806 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_2 [2019-10-13 20:54:26,806 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2019-10-13 20:54:26,806 INFO L138 BoogieDeclarations]: Found implementation of procedure invoke_work_1 [2019-10-13 20:54:26,807 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2019-10-13 20:54:26,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_3 [2019-10-13 20:54:26,808 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2019-10-13 20:54:26,808 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_2 [2019-10-13 20:54:26,808 INFO L138 BoogieDeclarations]: Found implementation of procedure invoke_work_2 [2019-10-13 20:54:26,808 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 20:54:26,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2019-10-13 20:54:26,808 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-13 20:54:26,808 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-13 20:54:26,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_21 [2019-10-13 20:54:26,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_22 [2019-10-13 20:54:26,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_23 [2019-10-13 20:54:26,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_24 [2019-10-13 20:54:26,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_25 [2019-10-13 20:54:26,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_26 [2019-10-13 20:54:26,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_27 [2019-10-13 20:54:26,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_work_28 [2019-10-13 20:54:26,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_29 [2019-10-13 20:54:26,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_30 [2019-10-13 20:54:26,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_31 [2019-10-13 20:54:26,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 20:54:26,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 20:54:26,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 20:54:26,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 20:54:26,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 20:54:26,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-10-13 20:54:26,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-10-13 20:54:26,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-10-13 20:54:26,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-10-13 20:54:26,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-10-13 20:54:26,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 20:54:26,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_workqueue_key [2019-10-13 20:54:26,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __blkdev_driver_ioctl [2019-10-13 20:54:26,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-13 20:54:26,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2019-10-13 20:54:26,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-13 20:54:26,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __msecs_to_jiffies [2019-10-13 20:54:26,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-13 20:54:26,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 20:54:26,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2019-10-13 20:54:26,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-13 20:54:26,826 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-10-13 20:54:26,826 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-13 20:54:26,826 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-10-13 20:54:26,826 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-13 20:54:26,826 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2019-10-13 20:54:26,827 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_get_request [2019-10-13 20:54:26,827 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_lld_busy [2019-10-13 20:54:26,827 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_put_request [2019-10-13 20:54:26,827 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2019-10-13 20:54:26,827 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_consume_args [2019-10-13 20:54:26,827 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2019-10-13 20:54:26,827 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_reserved_rq_based_ios [2019-10-13 20:54:26,827 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_noflush_suspending [2019-10-13 20:54:26,828 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_path_uevent [2019-10-13 20:54:26,828 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2019-10-13 20:54:26,828 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_read_arg [2019-10-13 20:54:26,828 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_read_arg_group [2019-10-13 20:54:26,828 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_register_target [2019-10-13 20:54:26,828 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_shift_arg [2019-10-13 20:54:26,828 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_suspended [2019-10-13 20:54:26,829 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_event [2019-10-13 20:54:26,829 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_get_mode [2019-10-13 20:54:26,829 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_run_md_queue_async [2019-10-13 20:54:26,829 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_unregister_target [2019-10-13 20:54:26,829 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2019-10-13 20:54:26,829 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2019-10-13 20:54:26,829 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2019-10-13 20:54:26,829 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2019-10-13 20:54:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2019-10-13 20:54:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure io_schedule_timeout [2019-10-13 20:54:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_create [2019-10-13 20:54:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2019-10-13 20:54:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrdup [2019-10-13 20:54:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 20:54:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_preresume_3 [2019-10-13 20:54:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-13 20:54:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2019-10-13 20:54:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_alloc [2019-10-13 20:54:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create [2019-10-13 20:54:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2019-10-13 20:54:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2019-10-13 20:54:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-13 20:54:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 20:54:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 20:54:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2019-10-13 20:54:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2019-10-13 20:54:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2019-10-13 20:54:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure scnprintf [2019-10-13 20:54:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_activate [2019-10-13 20:54:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_attach [2019-10-13 20:54:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_attached_handler_name [2019-10-13 20:54:26,833 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_detach [2019-10-13 20:54:26,833 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_handler_exist [2019-10-13 20:54:26,833 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_set_params [2019-10-13 20:54:26,833 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_verify_blk_ioctl [2019-10-13 20:54:26,833 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2019-10-13 20:54:26,833 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2019-10-13 20:54:26,833 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2019-10-13 20:54:26,833 INFO L138 BoogieDeclarations]: Found implementation of procedure default_wake_function [2019-10-13 20:54:26,834 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 20:54:26,834 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 20:54:26,834 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 20:54:26,834 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 20:54:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 20:54:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-13 20:54:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-10-13 20:54:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 20:54:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-13 20:54:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 20:54:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-10-13 20:54:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2019-10-13 20:54:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2019-10-13 20:54:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2019-10-13 20:54:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2019-10-13 20:54:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2019-10-13 20:54:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_5 [2019-10-13 20:54:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_7 [2019-10-13 20:54:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2019-10-13 20:54:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_6 [2019-10-13 20:54:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_9 [2019-10-13 20:54:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2019-10-13 20:54:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_8 [2019-10-13 20:54:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2019-10-13 20:54:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_10 [2019-10-13 20:54:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_11 [2019-10-13 20:54:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-10-13 20:54:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-10-13 20:54:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 20:54:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 20:54:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 20:54:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 20:54:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 20:54:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 20:54:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 20:54:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 20:54:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 20:54:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 20:54:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 20:54:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 20:54:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 20:54:26,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 20:54:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-13 20:54:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-13 20:54:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 20:54:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 20:54:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 20:54:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 20:54:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2019-10-13 20:54:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2019-10-13 20:54:26,848 INFO L130 BoogieDeclarations]: Found specification of procedure dm_register_path_selector [2019-10-13 20:54:26,848 INFO L130 BoogieDeclarations]: Found specification of procedure dm_unregister_path_selector [2019-10-13 20:54:26,848 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_path_selector [2019-10-13 20:54:26,848 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_path_selector [2019-10-13 20:54:26,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 20:54:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure __find_path_selector_type [2019-10-13 20:54:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure get_path_selector [2019-10-13 20:54:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure _alloc_path_selector [2019-10-13 20:54:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 20:54:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 20:54:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 20:54:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 20:54:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-13 20:54:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 20:54:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-13 20:54:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure scnprintf [2019-10-13 20:54:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2019-10-13 20:54:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 20:54:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 20:54:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 20:54:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-13 20:54:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-13 20:54:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-13 20:54:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-13 20:54:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-13 20:54:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2019-10-13 20:54:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure kstrdup [2019-10-13 20:54:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2019-10-13 20:54:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-13 20:54:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-13 20:54:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-10-13 20:54:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-13 20:54:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2019-10-13 20:54:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 20:54:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-10-13 20:54:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-13 20:54:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-10-13 20:54:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-13 20:54:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 20:54:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-10-13 20:54:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-10-13 20:54:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-13 20:54:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure default_wake_function [2019-10-13 20:54:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-13 20:54:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2019-10-13 20:54:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2019-10-13 20:54:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-13 20:54:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-13 20:54:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-13 20:54:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 20:54:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure __msecs_to_jiffies [2019-10-13 20:54:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2019-10-13 20:54:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2019-10-13 20:54:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2019-10-13 20:54:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2019-10-13 20:54:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_workqueue_key [2019-10-13 20:54:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2019-10-13 20:54:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_29 [2019-10-13 20:54:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_30 [2019-10-13 20:54:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_31 [2019-10-13 20:54:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_21 [2019-10-13 20:54:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_23 [2019-10-13 20:54:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_22 [2019-10-13 20:54:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_25 [2019-10-13 20:54:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_24 [2019-10-13 20:54:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_26 [2019-10-13 20:54:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_27 [2019-10-13 20:54:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2019-10-13 20:54:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_work_28 [2019-10-13 20:54:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2019-10-13 20:54:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2019-10-13 20:54:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2019-10-13 20:54:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure sigismember [2019-10-13 20:54:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure io_schedule_timeout [2019-10-13 20:54:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure io_schedule [2019-10-13 20:54:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-13 20:54:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-13 20:54:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure __fatal_signal_pending [2019-10-13 20:54:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure fatal_signal_pending [2019-10-13 20:54:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_create [2019-10-13 20:54:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2019-10-13 20:54:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 20:54:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2019-10-13 20:54:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_2 [2019-10-13 20:54:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2019-10-13 20:54:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure work_init_2 [2019-10-13 20:54:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure work_init_1 [2019-10-13 20:54:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_2 [2019-10-13 20:54:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure invoke_work_1 [2019-10-13 20:54:26,859 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2019-10-13 20:54:26,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_3 [2019-10-13 20:54:26,859 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_2 [2019-10-13 20:54:26,859 INFO L130 BoogieDeclarations]: Found specification of procedure invoke_work_2 [2019-10-13 20:54:26,859 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2019-10-13 20:54:26,859 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create [2019-10-13 20:54:26,859 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2019-10-13 20:54:26,859 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_alloc [2019-10-13 20:54:26,860 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2019-10-13 20:54:26,860 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_alloc_slab [2019-10-13 20:54:26,860 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free_slab [2019-10-13 20:54:26,860 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create_slab_pool [2019-10-13 20:54:26,860 INFO L130 BoogieDeclarations]: Found specification of procedure blk_put_request [2019-10-13 20:54:26,860 INFO L130 BoogieDeclarations]: Found specification of procedure blk_get_request [2019-10-13 20:54:26,860 INFO L130 BoogieDeclarations]: Found specification of procedure blk_lld_busy [2019-10-13 20:54:26,860 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_verify_blk_ioctl [2019-10-13 20:54:26,860 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2019-10-13 20:54:26,861 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_bytes [2019-10-13 20:54:26,861 INFO L130 BoogieDeclarations]: Found specification of procedure __blkdev_driver_ioctl [2019-10-13 20:54:26,861 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2019-10-13 20:54:26,861 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2019-10-13 20:54:26,861 INFO L130 BoogieDeclarations]: Found specification of procedure dm_register_target [2019-10-13 20:54:26,861 INFO L130 BoogieDeclarations]: Found specification of procedure dm_unregister_target [2019-10-13 20:54:26,861 INFO L130 BoogieDeclarations]: Found specification of procedure dm_read_arg [2019-10-13 20:54:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure dm_read_arg_group [2019-10-13 20:54:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure dm_shift_arg [2019-10-13 20:54:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure dm_consume_args [2019-10-13 20:54:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure dm_suspended [2019-10-13 20:54:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure dm_noflush_suspending [2019-10-13 20:54:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_get_mode [2019-10-13 20:54:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_event [2019-10-13 20:54:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_run_md_queue_async [2019-10-13 20:54:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_reserved_rq_based_ios [2019-10-13 20:54:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure dm_path_uevent [2019-10-13 20:54:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_activate [2019-10-13 20:54:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_handler_exist [2019-10-13 20:54:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_attach [2019-10-13 20:54:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_detach [2019-10-13 20:54:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_attached_handler_name [2019-10-13 20:54:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_set_params [2019-10-13 20:54:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure trigger_event [2019-10-13 20:54:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure activate_path [2019-10-13 20:54:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure __pgpath_busy [2019-10-13 20:54:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pgpath [2019-10-13 20:54:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 20:54:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure free_pgpath [2019-10-13 20:54:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_priority_group [2019-10-13 20:54:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure free_pgpaths [2019-10-13 20:54:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure free_priority_group [2019-10-13 20:54:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 20:54:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_multipath [2019-10-13 20:54:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure free_multipath [2019-10-13 20:54:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure set_mapinfo [2019-10-13 20:54:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure clear_mapinfo [2019-10-13 20:54:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure __pg_init_all_paths [2019-10-13 20:54:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure __switch_pg [2019-10-13 20:54:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure __choose_path_in_pg [2019-10-13 20:54:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~$Pointer$ [2019-10-13 20:54:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure __choose_pgpath [2019-10-13 20:54:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure __must_push_back [2019-10-13 20:54:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure __multipath_map [2019-10-13 20:54:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-13 20:54:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_map [2019-10-13 20:54:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_clone_and_map [2019-10-13 20:54:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_release_clone [2019-10-13 20:54:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure queue_if_no_path [2019-10-13 20:54:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure parse_path_selector [2019-10-13 20:54:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2019-10-13 20:54:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure parse_path [2019-10-13 20:54:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2019-10-13 20:54:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure parse_priority_group [2019-10-13 20:54:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure parse_hw_handler [2019-10-13 20:54:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure parse_features [2019-10-13 20:54:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_ctr [2019-10-13 20:54:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_wait_for_pg_init_completion [2019-10-13 20:54:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure flush_multipath_work [2019-10-13 20:54:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_dtr [2019-10-13 20:54:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure fail_path [2019-10-13 20:54:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 20:54:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure reinstate_path [2019-10-13 20:54:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-13 20:54:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure action_dev [2019-10-13 20:54:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-10-13 20:54:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure bypass_pg [2019-10-13 20:54:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure switch_pg_num [2019-10-13 20:54:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure bypass_pg_num [2019-10-13 20:54:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure pg_init_limit_reached [2019-10-13 20:54:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure pg_init_done [2019-10-13 20:54:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure noretry_error [2019-10-13 20:54:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure do_end_io [2019-10-13 20:54:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_end_io [2019-10-13 20:54:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_presuspend [2019-10-13 20:54:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_postsuspend [2019-10-13 20:54:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_resume [2019-10-13 20:54:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_status [2019-10-13 20:54:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~status_type_t~0~X~$Pointer$~X~int~TO~int [2019-10-13 20:54:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_message [2019-10-13 20:54:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_ioctl [2019-10-13 20:54:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_iterate_devices [2019-10-13 20:54:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2019-10-13 20:54:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_busy [2019-10-13 20:54:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure dm_multipath_init [2019-10-13 20:54:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure dm_multipath_exit [2019-10-13 20:54:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 20:54:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 20:54:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_preresume_3 [2019-10-13 20:54:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 20:54:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 20:54:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 20:54:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-10-13 20:54:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-10-13 20:54:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-10-13 20:54:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 20:54:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 20:54:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-13 20:54:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-13 20:54:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 20:54:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 20:54:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 20:54:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 20:54:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 20:54:28,114 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 20:54:34,148 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-10-13 20:54:34,982 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 20:54:34,983 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 20:54:34,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:54:34 BoogieIcfgContainer [2019-10-13 20:54:34,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 20:54:34,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 20:54:34,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 20:54:34,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 20:54:34,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:54:22" (1/3) ... [2019-10-13 20:54:34,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3662379e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:54:34, skipping insertion in model container [2019-10-13 20:54:34,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:26" (2/3) ... [2019-10-13 20:54:34,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3662379e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:54:34, skipping insertion in model container [2019-10-13 20:54:34,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:54:34" (3/3) ... [2019-10-13 20:54:34,999 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i [2019-10-13 20:54:35,012 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 20:54:35,031 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 20:54:35,043 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 20:54:35,089 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 20:54:35,089 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 20:54:35,089 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 20:54:35,089 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 20:54:35,089 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 20:54:35,089 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 20:54:35,089 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 20:54:35,090 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 20:54:35,154 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states. [2019-10-13 20:54:35,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2019-10-13 20:54:35,192 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:54:35,194 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] [2019-10-13 20:54:35,196 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:54:35,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:54:35,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1898597506, now seen corresponding path program 1 times [2019-10-13 20:54:35,212 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:54:35,212 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168169140] [2019-10-13 20:54:35,213 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:35,213 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:35,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:54:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:36,352 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 852 trivial. 0 not checked. [2019-10-13 20:54:36,353 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168169140] [2019-10-13 20:54:36,354 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:54:36,354 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:54:36,355 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031898175] [2019-10-13 20:54:36,361 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:54:36,363 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:54:36,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:54:36,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:54:36,380 INFO L87 Difference]: Start difference. First operand 2075 states. Second operand 3 states. [2019-10-13 20:54:36,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:54:36,743 INFO L93 Difference]: Finished difference Result 5867 states and 7959 transitions. [2019-10-13 20:54:36,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:54:36,745 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 267 [2019-10-13 20:54:36,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:54:36,815 INFO L225 Difference]: With dead ends: 5867 [2019-10-13 20:54:36,815 INFO L226 Difference]: Without dead ends: 3888 [2019-10-13 20:54:36,838 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 [2019-10-13 20:54:36,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3888 states. [2019-10-13 20:54:37,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3888 to 3885. [2019-10-13 20:54:37,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3885 states. [2019-10-13 20:54:37,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3885 states to 3885 states and 5236 transitions. [2019-10-13 20:54:37,183 INFO L78 Accepts]: Start accepts. Automaton has 3885 states and 5236 transitions. Word has length 267 [2019-10-13 20:54:37,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:54:37,184 INFO L462 AbstractCegarLoop]: Abstraction has 3885 states and 5236 transitions. [2019-10-13 20:54:37,184 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:54:37,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 5236 transitions. [2019-10-13 20:54:37,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2019-10-13 20:54:37,202 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:54:37,202 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] [2019-10-13 20:54:37,203 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:54:37,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:54:37,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1173116233, now seen corresponding path program 1 times [2019-10-13 20:54:37,204 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:54:37,204 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105783991] [2019-10-13 20:54:37,204 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:37,204 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:37,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:54:37,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:38,481 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 852 trivial. 0 not checked. [2019-10-13 20:54:38,481 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105783991] [2019-10-13 20:54:38,481 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:54:38,482 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:54:38,482 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143545316] [2019-10-13 20:54:38,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:54:38,486 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:54:38,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:54:38,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:54:38,487 INFO L87 Difference]: Start difference. First operand 3885 states and 5236 transitions. Second operand 3 states. [2019-10-13 20:54:39,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:54:39,084 INFO L93 Difference]: Finished difference Result 8389 states and 11272 transitions. [2019-10-13 20:54:39,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:54:39,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 366 [2019-10-13 20:54:39,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:54:39,115 INFO L225 Difference]: With dead ends: 8389 [2019-10-13 20:54:39,115 INFO L226 Difference]: Without dead ends: 4570 [2019-10-13 20:54:39,134 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 [2019-10-13 20:54:39,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4570 states. [2019-10-13 20:54:39,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4570 to 4564. [2019-10-13 20:54:39,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4564 states. [2019-10-13 20:54:39,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4564 states to 4564 states and 6116 transitions. [2019-10-13 20:54:39,318 INFO L78 Accepts]: Start accepts. Automaton has 4564 states and 6116 transitions. Word has length 366 [2019-10-13 20:54:39,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:54:39,319 INFO L462 AbstractCegarLoop]: Abstraction has 4564 states and 6116 transitions. [2019-10-13 20:54:39,319 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:54:39,319 INFO L276 IsEmpty]: Start isEmpty. Operand 4564 states and 6116 transitions. [2019-10-13 20:54:39,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2019-10-13 20:54:39,336 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:54:39,336 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] [2019-10-13 20:54:39,337 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:54:39,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:54:39,337 INFO L82 PathProgramCache]: Analyzing trace with hash 425216159, now seen corresponding path program 1 times [2019-10-13 20:54:39,337 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:54:39,337 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373426953] [2019-10-13 20:54:39,338 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:39,338 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:39,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:54:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:40,083 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 948 trivial. 0 not checked. [2019-10-13 20:54:40,083 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373426953] [2019-10-13 20:54:40,084 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:54:40,084 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 20:54:40,084 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025681094] [2019-10-13 20:54:40,085 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 20:54:40,086 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:54:40,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 20:54:40,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:54:40,086 INFO L87 Difference]: Start difference. First operand 4564 states and 6116 transitions. Second operand 5 states. [2019-10-13 20:54:42,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:54:42,502 INFO L93 Difference]: Finished difference Result 9075 states and 12164 transitions. [2019-10-13 20:54:42,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 20:54:42,503 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 405 [2019-10-13 20:54:42,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:54:42,541 INFO L225 Difference]: With dead ends: 9075 [2019-10-13 20:54:42,542 INFO L226 Difference]: Without dead ends: 4579 [2019-10-13 20:54:42,569 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 [2019-10-13 20:54:42,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4579 states. [2019-10-13 20:54:42,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4579 to 4571. [2019-10-13 20:54:42,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4571 states. [2019-10-13 20:54:42,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4571 states to 4571 states and 6121 transitions. [2019-10-13 20:54:42,793 INFO L78 Accepts]: Start accepts. Automaton has 4571 states and 6121 transitions. Word has length 405 [2019-10-13 20:54:42,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:54:42,794 INFO L462 AbstractCegarLoop]: Abstraction has 4571 states and 6121 transitions. [2019-10-13 20:54:42,794 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 20:54:42,794 INFO L276 IsEmpty]: Start isEmpty. Operand 4571 states and 6121 transitions. [2019-10-13 20:54:42,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2019-10-13 20:54:42,822 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:54:42,823 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] [2019-10-13 20:54:42,823 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:54:42,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:54:42,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1735748844, now seen corresponding path program 1 times [2019-10-13 20:54:42,824 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:54:42,824 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428717954] [2019-10-13 20:54:42,825 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:42,825 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:42,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:54:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:43,811 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 951 trivial. 0 not checked. [2019-10-13 20:54:43,812 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428717954] [2019-10-13 20:54:43,812 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:54:43,813 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-13 20:54:43,813 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744290271] [2019-10-13 20:54:43,814 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 20:54:43,814 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:54:43,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 20:54:43,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2019-10-13 20:54:43,815 INFO L87 Difference]: Start difference. First operand 4571 states and 6121 transitions. Second operand 14 states. [2019-10-13 20:54:44,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:54:44,323 INFO L93 Difference]: Finished difference Result 9108 states and 12219 transitions. [2019-10-13 20:54:44,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 20:54:44,324 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 413 [2019-10-13 20:54:44,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:54:44,354 INFO L225 Difference]: With dead ends: 9108 [2019-10-13 20:54:44,355 INFO L226 Difference]: Without dead ends: 4615 [2019-10-13 20:54:44,374 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-13 20:54:44,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4615 states. [2019-10-13 20:54:44,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4615 to 4609. [2019-10-13 20:54:44,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4609 states. [2019-10-13 20:54:44,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4609 states to 4609 states and 6168 transitions. [2019-10-13 20:54:44,547 INFO L78 Accepts]: Start accepts. Automaton has 4609 states and 6168 transitions. Word has length 413 [2019-10-13 20:54:44,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:54:44,548 INFO L462 AbstractCegarLoop]: Abstraction has 4609 states and 6168 transitions. [2019-10-13 20:54:44,548 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 20:54:44,548 INFO L276 IsEmpty]: Start isEmpty. Operand 4609 states and 6168 transitions. [2019-10-13 20:54:44,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2019-10-13 20:54:44,565 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:54:44,565 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] [2019-10-13 20:54:44,565 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:54:44,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:54:44,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1041101837, now seen corresponding path program 1 times [2019-10-13 20:54:44,566 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:54:44,566 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068615183] [2019-10-13 20:54:44,567 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:44,567 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:44,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:54:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:45,209 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 951 trivial. 0 not checked. [2019-10-13 20:54:45,210 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068615183] [2019-10-13 20:54:45,210 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:54:45,210 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 20:54:45,211 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707735626] [2019-10-13 20:54:45,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 20:54:45,213 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:54:45,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 20:54:45,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 20:54:45,214 INFO L87 Difference]: Start difference. First operand 4609 states and 6168 transitions. Second operand 4 states. [2019-10-13 20:54:45,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:54:45,458 INFO L93 Difference]: Finished difference Result 9168 states and 12331 transitions. [2019-10-13 20:54:45,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 20:54:45,459 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 413 [2019-10-13 20:54:45,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:54:45,493 INFO L225 Difference]: With dead ends: 9168 [2019-10-13 20:54:45,493 INFO L226 Difference]: Without dead ends: 4637 [2019-10-13 20:54:45,526 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 [2019-10-13 20:54:45,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4637 states. [2019-10-13 20:54:45,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4637 to 4637. [2019-10-13 20:54:45,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4637 states. [2019-10-13 20:54:45,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4637 states to 4637 states and 6206 transitions. [2019-10-13 20:54:45,737 INFO L78 Accepts]: Start accepts. Automaton has 4637 states and 6206 transitions. Word has length 413 [2019-10-13 20:54:45,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:54:45,739 INFO L462 AbstractCegarLoop]: Abstraction has 4637 states and 6206 transitions. [2019-10-13 20:54:45,739 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 20:54:45,740 INFO L276 IsEmpty]: Start isEmpty. Operand 4637 states and 6206 transitions. [2019-10-13 20:54:45,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2019-10-13 20:54:45,757 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:54:45,758 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] [2019-10-13 20:54:45,758 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:54:45,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:54:45,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1070448735, now seen corresponding path program 1 times [2019-10-13 20:54:45,759 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:54:45,759 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742641463] [2019-10-13 20:54:45,759 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:45,759 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:45,760 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:54:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:46,393 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 951 trivial. 0 not checked. [2019-10-13 20:54:46,393 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742641463] [2019-10-13 20:54:46,394 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:54:46,394 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 20:54:46,394 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401895053] [2019-10-13 20:54:46,395 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 20:54:46,395 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:54:46,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 20:54:46,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:54:46,396 INFO L87 Difference]: Start difference. First operand 4637 states and 6206 transitions. Second operand 5 states. [2019-10-13 20:54:46,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:54:46,576 INFO L93 Difference]: Finished difference Result 9210 states and 12383 transitions. [2019-10-13 20:54:46,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 20:54:46,577 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 418 [2019-10-13 20:54:46,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:54:46,616 INFO L225 Difference]: With dead ends: 9210 [2019-10-13 20:54:46,617 INFO L226 Difference]: Without dead ends: 4651 [2019-10-13 20:54:46,639 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 [2019-10-13 20:54:46,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4651 states. [2019-10-13 20:54:46,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4651 to 4645. [2019-10-13 20:54:46,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4645 states. [2019-10-13 20:54:46,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4645 states to 4645 states and 6220 transitions. [2019-10-13 20:54:46,929 INFO L78 Accepts]: Start accepts. Automaton has 4645 states and 6220 transitions. Word has length 418 [2019-10-13 20:54:46,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:54:46,929 INFO L462 AbstractCegarLoop]: Abstraction has 4645 states and 6220 transitions. [2019-10-13 20:54:46,929 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 20:54:46,930 INFO L276 IsEmpty]: Start isEmpty. Operand 4645 states and 6220 transitions. [2019-10-13 20:54:46,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2019-10-13 20:54:46,947 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:54:46,948 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] [2019-10-13 20:54:46,948 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:54:46,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:54:46,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1091182016, now seen corresponding path program 1 times [2019-10-13 20:54:46,949 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:54:46,950 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137757354] [2019-10-13 20:54:46,950 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:46,950 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:46,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:54:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:47,955 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 895 trivial. 0 not checked. [2019-10-13 20:54:47,956 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137757354] [2019-10-13 20:54:47,956 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812679183] [2019-10-13 20:54:47,956 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