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-commit-tester/m0_drivers-media-video-cx88-cx8802-ko--32_7a--d47b389.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 00:16:43,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 00:16:43,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 00:16:43,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 00:16:43,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 00:16:43,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 00:16:43,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 00:16:43,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 00:16:43,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 00:16:43,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 00:16:43,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 00:16:43,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 00:16:43,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 00:16:43,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 00:16:43,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 00:16:43,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 00:16:43,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 00:16:43,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 00:16:43,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 00:16:44,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 00:16:44,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 00:16:44,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 00:16:44,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 00:16:44,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 00:16:44,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 00:16:44,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 00:16:44,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 00:16:44,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 00:16:44,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 00:16:44,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 00:16:44,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 00:16:44,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 00:16:44,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 00:16:44,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 00:16:44,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 00:16:44,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 00:16:44,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 00:16:44,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 00:16:44,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 00:16:44,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 00:16:44,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 00:16:44,029 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 00:16:44,058 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 00:16:44,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 00:16:44,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 00:16:44,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 00:16:44,062 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 00:16:44,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 00:16:44,063 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 00:16:44,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 00:16:44,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 00:16:44,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 00:16:44,064 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 00:16:44,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 00:16:44,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 00:16:44,064 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 00:16:44,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 00:16:44,065 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 00:16:44,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 00:16:44,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 00:16:44,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 00:16:44,067 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 00:16:44,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 00:16:44,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:16:44,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 00:16:44,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 00:16:44,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 00:16:44,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 00:16:44,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 00:16:44,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 00:16:44,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 00:16:44,385 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 00:16:44,403 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 00:16:44,407 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 00:16:44,408 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 00:16:44,408 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 00:16:44,409 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-commit-tester/m0_drivers-media-video-cx88-cx8802-ko--32_7a--d47b389.i [2019-10-15 00:16:44,474 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36953f5ae/8a6b69165f0b454d8e2e5931e23ad0f8/FLAG3f8b3a4f2 [2019-10-15 00:16:45,281 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 00:16:45,282 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-commit-tester/m0_drivers-media-video-cx88-cx8802-ko--32_7a--d47b389.i [2019-10-15 00:16:45,316 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36953f5ae/8a6b69165f0b454d8e2e5931e23ad0f8/FLAG3f8b3a4f2 [2019-10-15 00:16:45,787 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36953f5ae/8a6b69165f0b454d8e2e5931e23ad0f8 [2019-10-15 00:16:45,799 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 00:16:45,801 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 00:16:45,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 00:16:45,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 00:16:45,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 00:16:45,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:16:45" (1/1) ... [2019-10-15 00:16:45,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f58fb51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:16:45, skipping insertion in model container [2019-10-15 00:16:45,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:16:45" (1/1) ... [2019-10-15 00:16:45,819 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 00:16:45,995 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 00:16:48,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:16:48,033 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 00:16:48,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:16:48,608 INFO L192 MainTranslator]: Completed translation [2019-10-15 00:16:48,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:16:48 WrapperNode [2019-10-15 00:16:48,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 00:16:48,609 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 00:16:48,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 00:16:48,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 00:16:48,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:16:48" (1/1) ... [2019-10-15 00:16:48,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:16:48" (1/1) ... [2019-10-15 00:16:48,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:16:48" (1/1) ... [2019-10-15 00:16:48,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:16:48" (1/1) ... [2019-10-15 00:16:48,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:16:48" (1/1) ... [2019-10-15 00:16:48,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:16:48" (1/1) ... [2019-10-15 00:16:48,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:16:48" (1/1) ... [2019-10-15 00:16:48,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 00:16:48,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 00:16:48,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 00:16:48,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 00:16:48,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:16:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:16:49,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 00:16:49,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 00:16:49,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-10-15 00:16:49,071 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-15 00:16:49,072 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-15 00:16:49,073 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-10-15 00:16:49,074 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-15 00:16:49,074 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-15 00:16:49,075 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-15 00:16:49,077 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-15 00:16:49,077 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2019-10-15 00:16:49,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-15 00:16:49,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-15 00:16:49,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 00:16:49,082 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 00:16:49,083 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-15 00:16:49,089 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2019-10-15 00:16:49,089 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2019-10-15 00:16:49,089 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2019-10-15 00:16:49,090 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2019-10-15 00:16:49,090 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2019-10-15 00:16:49,091 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_supported [2019-10-15 00:16:49,091 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2019-10-15 00:16:49,091 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2019-10-15 00:16:49,092 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2019-10-15 00:16:49,092 INFO L138 BoogieDeclarations]: Found implementation of procedure request_module_async [2019-10-15 00:16:49,092 INFO L138 BoogieDeclarations]: Found implementation of procedure request_modules [2019-10-15 00:16:49,092 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_request_modules [2019-10-15 00:16:49,093 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_start_dma [2019-10-15 00:16:49,093 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_stop_dma [2019-10-15 00:16:49,093 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_restart_queue [2019-10-15 00:16:49,093 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_buf_prepare [2019-10-15 00:16:49,094 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_buf_queue [2019-10-15 00:16:49,094 INFO L138 BoogieDeclarations]: Found implementation of procedure do_cancel_buffers [2019-10-15 00:16:49,094 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_cancel_buffers [2019-10-15 00:16:49,094 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_timeout [2019-10-15 00:16:49,094 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_mpeg_irq [2019-10-15 00:16:49,095 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_irq [2019-10-15 00:16:49,095 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_init_common [2019-10-15 00:16:49,096 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_fini_common [2019-10-15 00:16:49,096 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_suspend_common [2019-10-15 00:16:49,096 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_resume_common [2019-10-15 00:16:49,096 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_get_driver [2019-10-15 00:16:49,097 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_request_acquire [2019-10-15 00:16:49,097 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_request_release [2019-10-15 00:16:49,097 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_check_driver [2019-10-15 00:16:49,097 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_register_driver [2019-10-15 00:16:49,098 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_unregister_driver [2019-10-15 00:16:49,099 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_probe [2019-10-15 00:16:49,099 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_remove [2019-10-15 00:16:49,099 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_init [2019-10-15 00:16:49,099 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_fini [2019-10-15 00:16:49,100 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 00:16:49,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2019-10-15 00:16:49,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_2 [2019-10-15 00:16:49,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_3 [2019-10-15 00:16:49,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_4 [2019-10-15 00:16:49,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2019-10-15 00:16:49,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2019-10-15 00:16:49,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-15 00:16:49,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2019-10-15 00:16:49,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2019-10-15 00:16:49,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2019-10-15 00:16:49,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-15 00:16:49,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_12 [2019-10-15 00:16:49,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2019-10-15 00:16:49,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-15 00:16:49,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-15 00:16:49,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_cx88_core [2019-10-15 00:16:49,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock_of_cx88_core [2019-10-15 00:16:49,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_cx88_core [2019-10-15 00:16:49,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock_of_cx88_core [2019-10-15 00:16:49,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock_of_cx88_core [2019-10-15 00:16:49,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock_of_cx88_core [2019-10-15 00:16:49,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_cx88_core [2019-10-15 00:16:49,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_v4l2_ctrl_handler [2019-10-15 00:16:49,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock_of_v4l2_ctrl_handler [2019-10-15 00:16:49,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_v4l2_ctrl_handler [2019-10-15 00:16:49,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock_of_v4l2_ctrl_handler [2019-10-15 00:16:49,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock_of_v4l2_ctrl_handler [2019-10-15 00:16:49,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock_of_v4l2_ctrl_handler [2019-10-15 00:16:49,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_v4l2_ctrl_handler [2019-10-15 00:16:49,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-15 00:16:49,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-15 00:16:49,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-15 00:16:49,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-15 00:16:49,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-15 00:16:49,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-15 00:16:49,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-15 00:16:49,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_vb_lock_of_videobuf_queue [2019-10-15 00:16:49,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_vb_lock_of_videobuf_queue [2019-10-15 00:16:49,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_vb_lock_of_videobuf_queue [2019-10-15 00:16:49,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_vb_lock_of_videobuf_queue [2019-10-15 00:16:49,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_vb_lock_of_videobuf_queue [2019-10-15 00:16:49,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_vb_lock_of_videobuf_queue [2019-10-15 00:16:49,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_vb_lock_of_videobuf_queue [2019-10-15 00:16:49,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 00:16:49,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 00:16:49,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-15 00:16:49,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2019-10-15 00:16:49,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-15 00:16:49,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_register_driver [2019-10-15 00:16:49,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-15 00:16:49,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2019-10-15 00:16:49,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-15 00:16:49,115 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-15 00:16:49,115 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-15 00:16:49,115 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-15 00:16:49,115 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-15 00:16:49,115 INFO L138 BoogieDeclarations]: Found implementation of procedure btcx_riscmem_free [2019-10-15 00:16:49,115 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_core_get [2019-10-15 00:16:49,116 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_core_irq [2019-10-15 00:16:49,116 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_core_put [2019-10-15 00:16:49,116 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_free_buffer [2019-10-15 00:16:49,116 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_print_irqbits [2019-10-15 00:16:49,116 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_reset [2019-10-15 00:16:49,117 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_risc_databuffer [2019-10-15 00:16:49,117 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_risc_stopper [2019-10-15 00:16:49,117 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_shutdown [2019-10-15 00:16:49,117 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_sram_channel_dump [2019-10-15 00:16:49,118 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_sram_channel_setup [2019-10-15 00:16:49,118 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_wakeup [2019-10-15 00:16:49,118 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2019-10-15 00:16:49,118 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-10-15 00:16:49,119 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-15 00:16:49,119 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-15 00:16:49,119 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_supported [2019-10-15 00:16:49,120 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work_sync [2019-10-15 00:16:49,120 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2019-10-15 00:16:49,120 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2019-10-15 00:16:49,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-10-15 00:16:49,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2019-10-15 00:16:49,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-10-15 00:16:49,121 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-15 00:16:49,121 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2019-10-15 00:16:49,121 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-10-15 00:16:49,122 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2019-10-15 00:16:49,126 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-15 00:16:49,126 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-15 00:16:49,127 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-15 00:16:49,128 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_bus_read_config_byte [2019-10-15 00:16:49,128 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2019-10-15 00:16:49,128 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2019-10-15 00:16:49,129 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2019-10-15 00:16:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2019-10-15 00:16:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2019-10-15 00:16:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2019-10-15 00:16:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2019-10-15 00:16:49,140 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2019-10-15 00:16:49,140 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-15 00:16:49,141 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2019-10-15 00:16:49,141 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2019-10-15 00:16:49,142 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2019-10-15 00:16:49,142 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_dma [2019-10-15 00:16:49,142 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 00:16:49,142 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 00:16:49,143 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-15 00:16:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 00:16:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 00:16:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-15 00:16:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-15 00:16:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-15 00:16:49,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 00:16:49,145 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-15 00:16:49,145 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-15 00:16:49,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 00:16:49,145 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-15 00:16:49,146 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-10-15 00:16:49,146 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2019-10-15 00:16:49,146 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-15 00:16:49,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_2 [2019-10-15 00:16:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-15 00:16:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_3 [2019-10-15 00:16:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2019-10-15 00:16:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-15 00:16:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2019-10-15 00:16:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-15 00:16:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2019-10-15 00:16:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-15 00:16:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2019-10-15 00:16:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_4 [2019-10-15 00:16:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2019-10-15 00:16:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2019-10-15 00:16:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2019-10-15 00:16:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_12 [2019-10-15 00:16:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_cx88_core [2019-10-15 00:16:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_cx88_core [2019-10-15 00:16:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_v4l2_ctrl_handler [2019-10-15 00:16:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_v4l2_ctrl_handler [2019-10-15 00:16:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-15 00:16:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-15 00:16:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-15 00:16:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_vb_lock_of_videobuf_queue [2019-10-15 00:16:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_vb_lock_of_videobuf_queue [2019-10-15 00:16:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-15 00:16:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-15 00:16:49,152 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-15 00:16:49,152 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-15 00:16:49,152 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-15 00:16:49,152 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-15 00:16:49,152 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-15 00:16:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-15 00:16:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-15 00:16:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-15 00:16:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-15 00:16:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2019-10-15 00:16:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2019-10-15 00:16:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2019-10-15 00:16:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-10-15 00:16:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-10-15 00:16:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2019-10-15 00:16:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2019-10-15 00:16:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work_sync [2019-10-15 00:16:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2019-10-15 00:16:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2019-10-15 00:16:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 00:16:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 00:16:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 00:16:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 00:16:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-15 00:16:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-15 00:16:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 00:16:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 00:16:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 00:16:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-15 00:16:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2019-10-15 00:16:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-15 00:16:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-15 00:16:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2019-10-15 00:16:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2019-10-15 00:16:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure dma_supported [2019-10-15 00:16:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2019-10-15 00:16:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2019-10-15 00:16:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2019-10-15 00:16:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure pci_bus_read_config_byte [2019-10-15 00:16:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2019-10-15 00:16:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 00:16:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2019-10-15 00:16:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2019-10-15 00:16:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2019-10-15 00:16:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2019-10-15 00:16:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2019-10-15 00:16:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2019-10-15 00:16:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2019-10-15 00:16:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_register_driver [2019-10-15 00:16:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2019-10-15 00:16:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_supported [2019-10-15 00:16:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2019-10-15 00:16:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2019-10-15 00:16:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2019-10-15 00:16:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2019-10-15 00:16:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_dma [2019-10-15 00:16:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure btcx_riscmem_free [2019-10-15 00:16:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_print_irqbits [2019-10-15 00:16:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_core_irq [2019-10-15 00:16:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_wakeup [2019-10-15 00:16:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_shutdown [2019-10-15 00:16:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_reset [2019-10-15 00:16:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_risc_databuffer [2019-10-15 00:16:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_risc_stopper [2019-10-15 00:16:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_free_buffer [2019-10-15 00:16:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_sram_channel_setup [2019-10-15 00:16:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_sram_channel_dump [2019-10-15 00:16:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_core_get [2019-10-15 00:16:49,173 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_core_put [2019-10-15 00:16:49,173 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_register_driver [2019-10-15 00:16:49,173 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_unregister_driver [2019-10-15 00:16:49,173 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_get_driver [2019-10-15 00:16:49,173 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_buf_prepare [2019-10-15 00:16:49,174 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_buf_queue [2019-10-15 00:16:49,174 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_cancel_buffers [2019-10-15 00:16:49,174 INFO L130 BoogieDeclarations]: Found specification of procedure request_module_async [2019-10-15 00:16:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure request_modules [2019-10-15 00:16:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 00:16:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 00:16:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure flush_request_modules [2019-10-15 00:16:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_start_dma [2019-10-15 00:16:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_stop_dma [2019-10-15 00:16:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_restart_queue [2019-10-15 00:16:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure do_cancel_buffers [2019-10-15 00:16:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_timeout [2019-10-15 00:16:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_mpeg_irq [2019-10-15 00:16:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_irq [2019-10-15 00:16:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_init_common [2019-10-15 00:16:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_fini_common [2019-10-15 00:16:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_suspend_common [2019-10-15 00:16:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_resume_common [2019-10-15 00:16:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_request_acquire [2019-10-15 00:16:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-10-15 00:16:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_request_release [2019-10-15 00:16:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_check_driver [2019-10-15 00:16:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-15 00:16:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_probe [2019-10-15 00:16:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_remove [2019-10-15 00:16:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_init [2019-10-15 00:16:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_fini [2019-10-15 00:16:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 00:16:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-10-15 00:16:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2019-10-15 00:16:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 00:16:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-10-15 00:16:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 00:16:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-15 00:16:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-15 00:16:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_cx88_core [2019-10-15 00:16:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock_of_cx88_core [2019-10-15 00:16:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock_of_cx88_core [2019-10-15 00:16:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock_of_cx88_core [2019-10-15 00:16:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock_of_cx88_core [2019-10-15 00:16:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_v4l2_ctrl_handler [2019-10-15 00:16:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock_of_v4l2_ctrl_handler [2019-10-15 00:16:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock_of_v4l2_ctrl_handler [2019-10-15 00:16:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock_of_v4l2_ctrl_handler [2019-10-15 00:16:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock_of_v4l2_ctrl_handler [2019-10-15 00:16:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-15 00:16:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-15 00:16:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-15 00:16:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-15 00:16:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_vb_lock_of_videobuf_queue [2019-10-15 00:16:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_vb_lock_of_videobuf_queue [2019-10-15 00:16:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_vb_lock_of_videobuf_queue [2019-10-15 00:16:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_vb_lock_of_videobuf_queue [2019-10-15 00:16:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_vb_lock_of_videobuf_queue [2019-10-15 00:16:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 00:16:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 00:16:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-15 00:16:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 00:16:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 00:16:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 00:16:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 00:16:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 00:16:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-15 00:16:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 00:16:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-15 00:16:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-15 00:16:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-15 00:16:58,163 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 00:16:58,164 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 00:16:58,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:16:58 BoogieIcfgContainer [2019-10-15 00:16:58,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 00:16:58,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 00:16:58,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 00:16:58,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 00:16:58,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:16:45" (1/3) ... [2019-10-15 00:16:58,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46385eaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:16:58, skipping insertion in model container [2019-10-15 00:16:58,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:16:48" (2/3) ... [2019-10-15 00:16:58,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46385eaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:16:58, skipping insertion in model container [2019-10-15 00:16:58,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:16:58" (3/3) ... [2019-10-15 00:16:58,174 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-media-video-cx88-cx8802-ko--32_7a--d47b389.i [2019-10-15 00:16:58,183 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 00:16:58,194 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 00:16:58,207 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 00:16:58,245 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 00:16:58,245 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 00:16:58,245 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 00:16:58,245 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 00:16:58,246 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 00:16:58,246 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 00:16:58,246 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 00:16:58,246 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 00:16:58,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states. [2019-10-15 00:16:58,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-15 00:16:58,302 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:16:58,303 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:16:58,305 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:16:58,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:16:58,311 INFO L82 PathProgramCache]: Analyzing trace with hash 60402968, now seen corresponding path program 1 times [2019-10-15 00:16:58,321 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:16:58,322 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564789989] [2019-10-15 00:16:58,322 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:16:58,322 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:16:58,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:16:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:16:59,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:16:59,162 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564789989] [2019-10-15 00:16:59,163 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:16:59,163 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:16:59,164 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251243745] [2019-10-15 00:16:59,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:16:59,170 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:16:59,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:16:59,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:16:59,186 INFO L87 Difference]: Start difference. First operand 1024 states. Second operand 3 states. [2019-10-15 00:17:01,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:17:01,284 INFO L93 Difference]: Finished difference Result 1717 states and 2185 transitions. [2019-10-15 00:17:01,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:17:01,286 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2019-10-15 00:17:01,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:17:01,315 INFO L225 Difference]: With dead ends: 1717 [2019-10-15 00:17:01,315 INFO L226 Difference]: Without dead ends: 967 [2019-10-15 00:17:01,326 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:17:01,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2019-10-15 00:17:01,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 965. [2019-10-15 00:17:01,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2019-10-15 00:17:01,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1221 transitions. [2019-10-15 00:17:01,461 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1221 transitions. Word has length 28 [2019-10-15 00:17:01,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:17:01,462 INFO L462 AbstractCegarLoop]: Abstraction has 965 states and 1221 transitions. [2019-10-15 00:17:01,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:17:01,462 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1221 transitions. [2019-10-15 00:17:01,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-15 00:17:01,464 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:17:01,464 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:17:01,464 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:17:01,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:17:01,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1871907524, now seen corresponding path program 1 times [2019-10-15 00:17:01,465 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:17:01,465 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460655290] [2019-10-15 00:17:01,465 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:01,466 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:01,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:17:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:17:01,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:17:01,684 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460655290] [2019-10-15 00:17:01,684 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:17:01,685 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:17:01,685 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615264376] [2019-10-15 00:17:01,686 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:17:01,687 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:17:01,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:17:01,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:17:01,687 INFO L87 Difference]: Start difference. First operand 965 states and 1221 transitions. Second operand 3 states. [2019-10-15 00:17:03,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:17:03,880 INFO L93 Difference]: Finished difference Result 967 states and 1222 transitions. [2019-10-15 00:17:03,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:17:03,881 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-10-15 00:17:03,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:17:03,888 INFO L225 Difference]: With dead ends: 967 [2019-10-15 00:17:03,888 INFO L226 Difference]: Without dead ends: 964 [2019-10-15 00:17:03,889 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:17:03,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2019-10-15 00:17:03,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 964. [2019-10-15 00:17:03,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 964 states. [2019-10-15 00:17:03,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1219 transitions. [2019-10-15 00:17:03,961 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1219 transitions. Word has length 29 [2019-10-15 00:17:03,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:17:03,962 INFO L462 AbstractCegarLoop]: Abstraction has 964 states and 1219 transitions. [2019-10-15 00:17:03,962 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:17:03,962 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1219 transitions. [2019-10-15 00:17:03,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-15 00:17:03,963 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:17:03,963 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:17:03,963 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:17:03,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:17:03,964 INFO L82 PathProgramCache]: Analyzing trace with hash -2100988517, now seen corresponding path program 1 times [2019-10-15 00:17:03,964 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:17:03,964 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57906737] [2019-10-15 00:17:03,964 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:03,965 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:03,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:17:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:17:04,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:17:04,296 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57906737] [2019-10-15 00:17:04,296 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:17:04,296 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:17:04,297 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362035266] [2019-10-15 00:17:04,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:17:04,297 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:17:04,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:17:04,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:17:04,298 INFO L87 Difference]: Start difference. First operand 964 states and 1219 transitions. Second operand 3 states. [2019-10-15 00:17:06,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:17:06,533 INFO L93 Difference]: Finished difference Result 966 states and 1220 transitions. [2019-10-15 00:17:06,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:17:06,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2019-10-15 00:17:06,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:17:06,539 INFO L225 Difference]: With dead ends: 966 [2019-10-15 00:17:06,540 INFO L226 Difference]: Without dead ends: 963 [2019-10-15 00:17:06,540 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:17:06,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2019-10-15 00:17:06,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 963. [2019-10-15 00:17:06,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 963 states. [2019-10-15 00:17:06,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1217 transitions. [2019-10-15 00:17:06,586 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1217 transitions. Word has length 30 [2019-10-15 00:17:06,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:17:06,586 INFO L462 AbstractCegarLoop]: Abstraction has 963 states and 1217 transitions. [2019-10-15 00:17:06,586 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:17:06,587 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1217 transitions. [2019-10-15 00:17:06,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-15 00:17:06,588 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:17:06,588 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:17:06,588 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:17:06,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:17:06,589 INFO L82 PathProgramCache]: Analyzing trace with hash -706709337, now seen corresponding path program 1 times [2019-10-15 00:17:06,589 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:17:06,589 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698981292] [2019-10-15 00:17:06,589 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:06,589 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:06,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:17:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:17:06,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:17:06,779 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698981292] [2019-10-15 00:17:06,779 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:17:06,780 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:17:06,780 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175553834] [2019-10-15 00:17:06,780 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:17:06,780 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:17:06,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:17:06,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:17:06,781 INFO L87 Difference]: Start difference. First operand 963 states and 1217 transitions. Second operand 3 states. [2019-10-15 00:17:08,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:17:08,927 INFO L93 Difference]: Finished difference Result 965 states and 1218 transitions. [2019-10-15 00:17:09,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:17:09,055 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2019-10-15 00:17:09,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:17:09,061 INFO L225 Difference]: With dead ends: 965 [2019-10-15 00:17:09,061 INFO L226 Difference]: Without dead ends: 949 [2019-10-15 00:17:09,062 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:17:09,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2019-10-15 00:17:09,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 949. [2019-10-15 00:17:09,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 949 states. [2019-10-15 00:17:09,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1199 transitions. [2019-10-15 00:17:09,114 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1199 transitions. Word has length 31 [2019-10-15 00:17:09,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:17:09,115 INFO L462 AbstractCegarLoop]: Abstraction has 949 states and 1199 transitions. [2019-10-15 00:17:09,115 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:17:09,115 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1199 transitions. [2019-10-15 00:17:09,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-10-15 00:17:09,120 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:17:09,121 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:17:09,121 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:17:09,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:17:09,121 INFO L82 PathProgramCache]: Analyzing trace with hash 2060811378, now seen corresponding path program 1 times [2019-10-15 00:17:09,122 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:17:09,122 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142590588] [2019-10-15 00:17:09,122 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:09,122 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:09,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:17:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:17:09,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 00:17:09,378 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142590588] [2019-10-15 00:17:09,378 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:17:09,378 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:17:09,379 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110614132] [2019-10-15 00:17:09,379 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:17:09,380 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:17:09,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:17:09,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:17:09,381 INFO L87 Difference]: Start difference. First operand 949 states and 1199 transitions. Second operand 3 states. [2019-10-15 00:17:09,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:17:09,461 INFO L93 Difference]: Finished difference Result 1892 states and 2402 transitions. [2019-10-15 00:17:09,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:17:09,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2019-10-15 00:17:09,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:17:09,468 INFO L225 Difference]: With dead ends: 1892 [2019-10-15 00:17:09,468 INFO L226 Difference]: Without dead ends: 965 [2019-10-15 00:17:09,471 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:17:09,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2019-10-15 00:17:09,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 965. [2019-10-15 00:17:09,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2019-10-15 00:17:09,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1224 transitions. [2019-10-15 00:17:09,517 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1224 transitions. Word has length 90 [2019-10-15 00:17:09,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:17:09,518 INFO L462 AbstractCegarLoop]: Abstraction has 965 states and 1224 transitions. [2019-10-15 00:17:09,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:17:09,518 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1224 transitions. [2019-10-15 00:17:09,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-15 00:17:09,525 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:17:09,525 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2019-10-15 00:17:09,526 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:17:09,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:17:09,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1202396301, now seen corresponding path program 1 times [2019-10-15 00:17:09,526 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:17:09,527 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221917874] [2019-10-15 00:17:09,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:09,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:09,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:17:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:17:09,838 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 00:17:09,838 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221917874] [2019-10-15 00:17:09,838 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:17:09,839 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 00:17:09,839 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114475910] [2019-10-15 00:17:09,839 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 00:17:09,840 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:17:09,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 00:17:09,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 00:17:09,840 INFO L87 Difference]: Start difference. First operand 965 states and 1224 transitions. Second operand 5 states. [2019-10-15 00:17:09,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:17:09,924 INFO L93 Difference]: Finished difference Result 1914 states and 2433 transitions. [2019-10-15 00:17:09,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 00:17:09,925 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2019-10-15 00:17:09,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:17:09,932 INFO L225 Difference]: With dead ends: 1914 [2019-10-15 00:17:09,932 INFO L226 Difference]: Without dead ends: 965 [2019-10-15 00:17:09,936 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 00:17:09,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2019-10-15 00:17:09,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 965. [2019-10-15 00:17:09,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2019-10-15 00:17:09,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1223 transitions. [2019-10-15 00:17:09,987 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1223 transitions. Word has length 120 [2019-10-15 00:17:09,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:17:09,987 INFO L462 AbstractCegarLoop]: Abstraction has 965 states and 1223 transitions. [2019-10-15 00:17:09,987 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 00:17:09,988 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1223 transitions. [2019-10-15 00:17:09,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-10-15 00:17:09,991 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:17:09,991 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2019-10-15 00:17:09,991 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:17:09,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:17:09,992 INFO L82 PathProgramCache]: Analyzing trace with hash 854552456, now seen corresponding path program 1 times [2019-10-15 00:17:09,992 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:17:09,992 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61577107] [2019-10-15 00:17:09,993 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:09,993 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:09,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:17:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:17:10,283 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 00:17:10,283 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61577107] [2019-10-15 00:17:10,284 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:17:10,284 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 00:17:10,284 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239370579] [2019-10-15 00:17:10,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 00:17:10,285 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:17:10,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 00:17:10,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 00:17:10,286 INFO L87 Difference]: Start difference. First operand 965 states and 1223 transitions. Second operand 6 states. [2019-10-15 00:17:10,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:17:10,406 INFO L93 Difference]: Finished difference Result 1917 states and 2435 transitions. [2019-10-15 00:17:10,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 00:17:10,407 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 127 [2019-10-15 00:17:10,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:17:10,413 INFO L225 Difference]: With dead ends: 1917 [2019-10-15 00:17:10,414 INFO L226 Difference]: Without dead ends: 965 [2019-10-15 00:17:10,418 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:17:10,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2019-10-15 00:17:10,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 965. [2019-10-15 00:17:10,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2019-10-15 00:17:10,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1222 transitions. [2019-10-15 00:17:10,490 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1222 transitions. Word has length 127 [2019-10-15 00:17:10,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:17:10,492 INFO L462 AbstractCegarLoop]: Abstraction has 965 states and 1222 transitions. [2019-10-15 00:17:10,492 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 00:17:10,492 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1222 transitions. [2019-10-15 00:17:10,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-15 00:17:10,496 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:17:10,496 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2019-10-15 00:17:10,497 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:17:10,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:17:10,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1068857833, now seen corresponding path program 1 times [2019-10-15 00:17:10,498 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:17:10,498 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73068315] [2019-10-15 00:17:10,498 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:10,498 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:10,498 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:17:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:17:10,870 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 00:17:10,871 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73068315] [2019-10-15 00:17:10,871 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:17:10,871 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 00:17:10,872 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643295962] [2019-10-15 00:17:10,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 00:17:10,872 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:17:10,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 00:17:10,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 00:17:10,873 INFO L87 Difference]: Start difference. First operand 965 states and 1222 transitions. Second operand 6 states. [2019-10-15 00:17:11,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:17:11,004 INFO L93 Difference]: Finished difference Result 1917 states and 2433 transitions. [2019-10-15 00:17:11,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 00:17:11,005 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2019-10-15 00:17:11,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:17:11,013 INFO L225 Difference]: With dead ends: 1917 [2019-10-15 00:17:11,014 INFO L226 Difference]: Without dead ends: 965 [2019-10-15 00:17:11,018 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:17:11,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2019-10-15 00:17:11,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 965. [2019-10-15 00:17:11,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2019-10-15 00:17:11,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1221 transitions. [2019-10-15 00:17:11,082 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1221 transitions. Word has length 149 [2019-10-15 00:17:11,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:17:11,083 INFO L462 AbstractCegarLoop]: Abstraction has 965 states and 1221 transitions. [2019-10-15 00:17:11,083 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 00:17:11,083 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1221 transitions. [2019-10-15 00:17:11,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 00:17:11,088 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:17:11,088 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2019-10-15 00:17:11,089 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:17:11,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:17:11,089 INFO L82 PathProgramCache]: Analyzing trace with hash 695524565, now seen corresponding path program 1 times [2019-10-15 00:17:11,089 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:17:11,090 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387875950] [2019-10-15 00:17:11,090 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:11,090 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:11,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:17:11,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:17:11,493 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 00:17:11,493 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387875950] [2019-10-15 00:17:11,494 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:17:11,494 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 00:17:11,494 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78034965] [2019-10-15 00:17:11,495 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 00:17:11,495 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:17:11,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 00:17:11,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 00:17:11,496 INFO L87 Difference]: Start difference. First operand 965 states and 1221 transitions. Second operand 8 states. [2019-10-15 00:17:11,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:17:11,681 INFO L93 Difference]: Finished difference Result 1922 states and 2439 transitions. [2019-10-15 00:17:11,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 00:17:11,682 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 165 [2019-10-15 00:17:11,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:17:11,693 INFO L225 Difference]: With dead ends: 1922 [2019-10-15 00:17:11,693 INFO L226 Difference]: Without dead ends: 965 [2019-10-15 00:17:11,701 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-15 00:17:11,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2019-10-15 00:17:11,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 965. [2019-10-15 00:17:11,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2019-10-15 00:17:11,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1219 transitions. [2019-10-15 00:17:11,777 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1219 transitions. Word has length 165 [2019-10-15 00:17:11,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:17:11,778 INFO L462 AbstractCegarLoop]: Abstraction has 965 states and 1219 transitions. [2019-10-15 00:17:11,778 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 00:17:11,778 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1219 transitions. [2019-10-15 00:17:11,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2019-10-15 00:17:11,785 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:17:11,785 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-15 00:17:11,785 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:17:11,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:17:11,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1218909751, now seen corresponding path program 1 times [2019-10-15 00:17:11,786 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:17:11,787 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381608899] [2019-10-15 00:17:11,787 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:11,787 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:11,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:17:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:17:12,344 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 00:17:12,345 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381608899] [2019-10-15 00:17:12,345 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:17:12,345 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 00:17:12,350 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039370490] [2019-10-15 00:17:12,351 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 00:17:12,351 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:17:12,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 00:17:12,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 00:17:12,352 INFO L87 Difference]: Start difference. First operand 965 states and 1219 transitions. Second operand 8 states. [2019-10-15 00:17:12,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:17:12,515 INFO L93 Difference]: Finished difference Result 1922 states and 2435 transitions. [2019-10-15 00:17:12,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 00:17:12,516 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 252 [2019-10-15 00:17:12,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:17:12,522 INFO L225 Difference]: With dead ends: 1922 [2019-10-15 00:17:12,522 INFO L226 Difference]: Without dead ends: 965 [2019-10-15 00:17:12,526 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-15 00:17:12,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2019-10-15 00:17:12,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 965. [2019-10-15 00:17:12,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2019-10-15 00:17:12,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1218 transitions. [2019-10-15 00:17:12,586 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1218 transitions. Word has length 252 [2019-10-15 00:17:12,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:17:12,588 INFO L462 AbstractCegarLoop]: Abstraction has 965 states and 1218 transitions. [2019-10-15 00:17:12,588 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 00:17:12,588 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1218 transitions. [2019-10-15 00:17:12,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2019-10-15 00:17:12,595 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:17:12,595 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-15 00:17:12,595 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:17:12,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:17:12,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1858631219, now seen corresponding path program 1 times [2019-10-15 00:17:12,596 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:17:12,596 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098400032] [2019-10-15 00:17:12,596 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:12,597 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:12,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:17:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:17:13,142 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 00:17:13,143 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098400032] [2019-10-15 00:17:13,143 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:17:13,143 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 00:17:13,144 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464718360] [2019-10-15 00:17:13,144 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 00:17:13,144 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:17:13,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 00:17:13,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 00:17:13,145 INFO L87 Difference]: Start difference. First operand 965 states and 1218 transitions. Second operand 5 states. [2019-10-15 00:17:13,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:17:13,214 INFO L93 Difference]: Finished difference Result 1904 states and 2408 transitions. [2019-10-15 00:17:13,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 00:17:13,214 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 271 [2019-10-15 00:17:13,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:17:13,225 INFO L225 Difference]: With dead ends: 1904 [2019-10-15 00:17:13,225 INFO L226 Difference]: Without dead ends: 961 [2019-10-15 00:17:13,229 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 00:17:13,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2019-10-15 00:17:13,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 961. [2019-10-15 00:17:13,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 961 states. [2019-10-15 00:17:13,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1211 transitions. [2019-10-15 00:17:13,285 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1211 transitions. Word has length 271 [2019-10-15 00:17:13,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:17:13,286 INFO L462 AbstractCegarLoop]: Abstraction has 961 states and 1211 transitions. [2019-10-15 00:17:13,286 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 00:17:13,286 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1211 transitions. [2019-10-15 00:17:13,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2019-10-15 00:17:13,293 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:17:13,293 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:17:13,294 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:17:13,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:17:13,294 INFO L82 PathProgramCache]: Analyzing trace with hash -825066065, now seen corresponding path program 1 times [2019-10-15 00:17:13,294 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:17:13,295 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101316128] [2019-10-15 00:17:13,295 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:13,295 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:13,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:17:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:17:14,041 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 00:17:14,042 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101316128] [2019-10-15 00:17:14,042 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:17:14,042 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 00:17:14,042 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727073283] [2019-10-15 00:17:14,045 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 00:17:14,045 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:17:14,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 00:17:14,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 00:17:14,046 INFO L87 Difference]: Start difference. First operand 961 states and 1211 transitions. Second operand 11 states. [2019-10-15 00:17:14,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:17:14,177 INFO L93 Difference]: Finished difference Result 1913 states and 2413 transitions. [2019-10-15 00:17:14,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 00:17:14,178 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 298 [2019-10-15 00:17:14,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:17:14,187 INFO L225 Difference]: With dead ends: 1913 [2019-10-15 00:17:14,187 INFO L226 Difference]: Without dead ends: 961 [2019-10-15 00:17:14,191 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 00:17:14,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2019-10-15 00:17:14,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 961. [2019-10-15 00:17:14,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 961 states. [2019-10-15 00:17:14,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1210 transitions. [2019-10-15 00:17:14,238 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1210 transitions. Word has length 298 [2019-10-15 00:17:14,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:17:14,239 INFO L462 AbstractCegarLoop]: Abstraction has 961 states and 1210 transitions. [2019-10-15 00:17:14,239 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 00:17:14,239 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1210 transitions. [2019-10-15 00:17:14,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2019-10-15 00:17:14,245 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:17:14,246 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:17:14,246 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:17:14,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:17:14,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1919779089, now seen corresponding path program 1 times [2019-10-15 00:17:14,247 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:17:14,247 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487980902] [2019-10-15 00:17:14,247 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:14,248 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:17:14,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:17:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:17:15,389 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-15 00:17:15,391 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487980902] [2019-10-15 00:17:15,391 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:17:15,391 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 00:17:15,391 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803513933] [2019-10-15 00:17:15,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 00:17:15,394 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:17:15,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 00:17:15,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 00:17:15,396 INFO L87 Difference]: Start difference. First operand 961 states and 1210 transitions. Second operand 4 states. [2019-10-15 00:17:17,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:17:17,962 INFO L93 Difference]: Finished difference Result 961 states and 1210 transitions. [2019-10-15 00:17:17,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 00:17:17,963 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 303 [2019-10-15 00:17:17,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:17:17,964 INFO L225 Difference]: With dead ends: 961 [2019-10-15 00:17:17,964 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 00:17:17,968 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 00:17:17,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 00:17:17,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 00:17:17,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 00:17:17,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 00:17:17,969 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 303 [2019-10-15 00:17:17,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:17:17,970 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 00:17:17,970 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 00:17:17,970 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 00:17:17,970 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 00:17:17,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.