java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-commit-tester/m0_drivers-media-video-cx88-cx8802-ko--32_7a--d47b389.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:02:52,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:02:52,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:02:52,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:02:52,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:02:52,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:02:52,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:02:52,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:02:52,786 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:02:52,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:02:52,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:02:52,789 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:02:52,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:02:52,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:02:52,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:02:52,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:02:52,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:02:52,794 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:02:52,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:02:52,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:02:52,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:02:52,801 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:02:52,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:02:52,803 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:02:52,805 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:02:52,806 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:02:52,806 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:02:52,807 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:02:52,807 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:02:52,808 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:02:52,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:02:52,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:02:52,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:02:52,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:02:52,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:02:52,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:02:52,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:02:52,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:02:52,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:02:52,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:02:52,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:02:52,816 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 22:02:52,830 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:02:52,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:02:52,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:02:52,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:02:52,832 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:02:52,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:02:52,833 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:02:52,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:02:52,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:02:52,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:02:52,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:02:52,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:02:52,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:02:52,834 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:02:52,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:02:52,834 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:02:52,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:02:52,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:02:52,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:02:52,835 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:02:52,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:02:52,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:02:52,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:02:52,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:02:52,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:02:52,836 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:02:52,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:02:52,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:02:52,837 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 22:02:53,117 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:02:53,136 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:02:53,141 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:02:53,143 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:02:53,144 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:02:53,144 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-commit-tester/m0_drivers-media-video-cx88-cx8802-ko--32_7a--d47b389.i [2019-10-13 22:02:53,224 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e2fa6514/b22c527caa7c4719af032e28cc252f1b/FLAG1aca660f5 [2019-10-13 22:02:54,101 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:02:54,103 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-commit-tester/m0_drivers-media-video-cx88-cx8802-ko--32_7a--d47b389.i [2019-10-13 22:02:54,146 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e2fa6514/b22c527caa7c4719af032e28cc252f1b/FLAG1aca660f5 [2019-10-13 22:02:54,610 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e2fa6514/b22c527caa7c4719af032e28cc252f1b [2019-10-13 22:02:54,618 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:02:54,620 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:02:54,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:02:54,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:02:54,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:02:54,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:02:54" (1/1) ... [2019-10-13 22:02:54,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538e7e77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:54, skipping insertion in model container [2019-10-13 22:02:54,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:02:54" (1/1) ... [2019-10-13 22:02:54,636 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:02:54,775 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:02:56,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:02:56,551 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:02:56,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:02:57,217 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:02:57,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:57 WrapperNode [2019-10-13 22:02:57,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:02:57,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:02:57,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:02:57,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:02:57,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:57" (1/1) ... [2019-10-13 22:02:57,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:57" (1/1) ... [2019-10-13 22:02:57,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:57" (1/1) ... [2019-10-13 22:02:57,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:57" (1/1) ... [2019-10-13 22:02:57,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:57" (1/1) ... [2019-10-13 22:02:57,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:57" (1/1) ... [2019-10-13 22:02:57,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:57" (1/1) ... [2019-10-13 22:02:57,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:02:57,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:02:57,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:02:57,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:02:57,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:02:57,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:02:57,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:02:57,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-10-13 22:02:57,594 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-13 22:02:57,594 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-13 22:02:57,594 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-10-13 22:02:57,594 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 22:02:57,595 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-13 22:02:57,595 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-13 22:02:57,595 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-13 22:02:57,595 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2019-10-13 22:02:57,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 22:02:57,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 22:02:57,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 22:02:57,596 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 22:02:57,596 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 22:02:57,596 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2019-10-13 22:02:57,597 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2019-10-13 22:02:57,597 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2019-10-13 22:02:57,602 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2019-10-13 22:02:57,603 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2019-10-13 22:02:57,604 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_supported [2019-10-13 22:02:57,604 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2019-10-13 22:02:57,604 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2019-10-13 22:02:57,604 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2019-10-13 22:02:57,605 INFO L138 BoogieDeclarations]: Found implementation of procedure request_module_async [2019-10-13 22:02:57,605 INFO L138 BoogieDeclarations]: Found implementation of procedure request_modules [2019-10-13 22:02:57,605 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_request_modules [2019-10-13 22:02:57,605 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_start_dma [2019-10-13 22:02:57,605 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_stop_dma [2019-10-13 22:02:57,605 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_restart_queue [2019-10-13 22:02:57,606 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_buf_prepare [2019-10-13 22:02:57,606 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_buf_queue [2019-10-13 22:02:57,606 INFO L138 BoogieDeclarations]: Found implementation of procedure do_cancel_buffers [2019-10-13 22:02:57,606 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_cancel_buffers [2019-10-13 22:02:57,606 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_timeout [2019-10-13 22:02:57,607 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_mpeg_irq [2019-10-13 22:02:57,607 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_irq [2019-10-13 22:02:57,607 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_init_common [2019-10-13 22:02:57,607 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_fini_common [2019-10-13 22:02:57,607 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_suspend_common [2019-10-13 22:02:57,607 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_resume_common [2019-10-13 22:02:57,608 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_get_driver [2019-10-13 22:02:57,608 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_request_acquire [2019-10-13 22:02:57,608 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_request_release [2019-10-13 22:02:57,608 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_check_driver [2019-10-13 22:02:57,608 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_register_driver [2019-10-13 22:02:57,608 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_unregister_driver [2019-10-13 22:02:57,608 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_probe [2019-10-13 22:02:57,609 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_remove [2019-10-13 22:02:57,609 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_init [2019-10-13 22:02:57,609 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_fini [2019-10-13 22:02:57,609 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:02:57,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2019-10-13 22:02:57,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_2 [2019-10-13 22:02:57,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_3 [2019-10-13 22:02:57,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_4 [2019-10-13 22:02:57,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2019-10-13 22:02:57,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2019-10-13 22:02:57,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-13 22:02:57,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2019-10-13 22:02:57,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2019-10-13 22:02:57,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2019-10-13 22:02:57,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-13 22:02:57,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_12 [2019-10-13 22:02:57,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2019-10-13 22:02:57,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 22:02:57,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 22:02:57,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_cx88_core [2019-10-13 22:02:57,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock_of_cx88_core [2019-10-13 22:02:57,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_cx88_core [2019-10-13 22:02:57,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock_of_cx88_core [2019-10-13 22:02:57,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock_of_cx88_core [2019-10-13 22:02:57,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock_of_cx88_core [2019-10-13 22:02:57,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_cx88_core [2019-10-13 22:02:57,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_v4l2_ctrl_handler [2019-10-13 22:02:57,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock_of_v4l2_ctrl_handler [2019-10-13 22:02:57,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_v4l2_ctrl_handler [2019-10-13 22:02:57,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock_of_v4l2_ctrl_handler [2019-10-13 22:02:57,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock_of_v4l2_ctrl_handler [2019-10-13 22:02:57,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock_of_v4l2_ctrl_handler [2019-10-13 22:02:57,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_v4l2_ctrl_handler [2019-10-13 22:02:57,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-13 22:02:57,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-13 22:02:57,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-13 22:02:57,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-13 22:02:57,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-13 22:02:57,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-13 22:02:57,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-13 22:02:57,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_vb_lock_of_videobuf_queue [2019-10-13 22:02:57,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_vb_lock_of_videobuf_queue [2019-10-13 22:02:57,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_vb_lock_of_videobuf_queue [2019-10-13 22:02:57,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_vb_lock_of_videobuf_queue [2019-10-13 22:02:57,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_vb_lock_of_videobuf_queue [2019-10-13 22:02:57,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_vb_lock_of_videobuf_queue [2019-10-13 22:02:57,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_vb_lock_of_videobuf_queue [2019-10-13 22:02:57,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 22:02:57,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 22:02:57,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-13 22:02:57,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2019-10-13 22:02:57,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-13 22:02:57,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_register_driver [2019-10-13 22:02:57,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 22:02:57,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2019-10-13 22:02:57,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-13 22:02:57,623 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-13 22:02:57,623 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-13 22:02:57,623 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-13 22:02:57,623 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-13 22:02:57,623 INFO L138 BoogieDeclarations]: Found implementation of procedure btcx_riscmem_free [2019-10-13 22:02:57,623 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_core_get [2019-10-13 22:02:57,624 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_core_irq [2019-10-13 22:02:57,624 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_core_put [2019-10-13 22:02:57,624 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_free_buffer [2019-10-13 22:02:57,624 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_print_irqbits [2019-10-13 22:02:57,624 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_reset [2019-10-13 22:02:57,625 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_risc_databuffer [2019-10-13 22:02:57,625 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_risc_stopper [2019-10-13 22:02:57,625 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_shutdown [2019-10-13 22:02:57,625 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_sram_channel_dump [2019-10-13 22:02:57,626 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_sram_channel_setup [2019-10-13 22:02:57,626 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_wakeup [2019-10-13 22:02:57,626 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2019-10-13 22:02:57,626 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-10-13 22:02:57,627 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 22:02:57,627 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 22:02:57,627 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_supported [2019-10-13 22:02:57,627 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work_sync [2019-10-13 22:02:57,627 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2019-10-13 22:02:57,628 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2019-10-13 22:02:57,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-10-13 22:02:57,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2019-10-13 22:02:57,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-10-13 22:02:57,629 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-13 22:02:57,633 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2019-10-13 22:02:57,633 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-10-13 22:02:57,633 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2019-10-13 22:02:57,633 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-13 22:02:57,633 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-13 22:02:57,634 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 22:02:57,634 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_bus_read_config_byte [2019-10-13 22:02:57,634 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2019-10-13 22:02:57,634 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2019-10-13 22:02:57,634 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2019-10-13 22:02:57,642 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2019-10-13 22:02:57,642 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2019-10-13 22:02:57,642 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2019-10-13 22:02:57,642 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2019-10-13 22:02:57,642 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2019-10-13 22:02:57,643 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 22:02:57,643 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2019-10-13 22:02:57,643 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2019-10-13 22:02:57,643 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2019-10-13 22:02:57,644 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_dma [2019-10-13 22:02:57,644 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 22:02:57,644 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 22:02:57,645 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 22:02:57,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:02:57,645 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:02:57,645 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 22:02:57,645 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 22:02:57,645 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-13 22:02:57,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 22:02:57,646 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-13 22:02:57,646 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-13 22:02:57,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 22:02:57,646 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-13 22:02:57,646 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-10-13 22:02:57,646 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2019-10-13 22:02:57,646 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-13 22:02:57,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_2 [2019-10-13 22:02:57,647 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 22:02:57,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_3 [2019-10-13 22:02:57,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2019-10-13 22:02:57,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-13 22:02:57,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2019-10-13 22:02:57,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-13 22:02:57,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2019-10-13 22:02:57,648 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-13 22:02:57,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2019-10-13 22:02:57,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_4 [2019-10-13 22:02:57,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2019-10-13 22:02:57,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2019-10-13 22:02:57,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2019-10-13 22:02:57,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_12 [2019-10-13 22:02:57,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_cx88_core [2019-10-13 22:02:57,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_cx88_core [2019-10-13 22:02:57,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_v4l2_ctrl_handler [2019-10-13 22:02:57,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_v4l2_ctrl_handler [2019-10-13 22:02:57,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-13 22:02:57,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-13 22:02:57,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-13 22:02:57,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_vb_lock_of_videobuf_queue [2019-10-13 22:02:57,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_vb_lock_of_videobuf_queue [2019-10-13 22:02:57,650 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 22:02:57,650 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-13 22:02:57,650 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-13 22:02:57,650 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-13 22:02:57,650 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-13 22:02:57,650 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 22:02:57,650 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-13 22:02:57,651 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-13 22:02:57,652 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-13 22:02:57,652 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-13 22:02:57,652 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-13 22:02:57,652 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2019-10-13 22:02:57,652 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2019-10-13 22:02:57,652 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2019-10-13 22:02:57,654 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-10-13 22:02:57,654 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-10-13 22:02:57,654 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2019-10-13 22:02:57,654 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2019-10-13 22:02:57,655 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work_sync [2019-10-13 22:02:57,655 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2019-10-13 22:02:57,655 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2019-10-13 22:02:57,655 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 22:02:57,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:02:57,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:02:57,655 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 22:02:57,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 22:02:57,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 22:02:57,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 22:02:57,656 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 22:02:57,656 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 22:02:57,656 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 22:02:57,656 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2019-10-13 22:02:57,656 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 22:02:57,657 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 22:02:57,657 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2019-10-13 22:02:57,657 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2019-10-13 22:02:57,657 INFO L130 BoogieDeclarations]: Found specification of procedure dma_supported [2019-10-13 22:02:57,657 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2019-10-13 22:02:57,657 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2019-10-13 22:02:57,657 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2019-10-13 22:02:57,657 INFO L130 BoogieDeclarations]: Found specification of procedure pci_bus_read_config_byte [2019-10-13 22:02:57,658 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2019-10-13 22:02:57,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:02:57,658 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2019-10-13 22:02:57,658 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2019-10-13 22:02:57,658 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2019-10-13 22:02:57,658 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2019-10-13 22:02:57,658 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2019-10-13 22:02:57,658 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2019-10-13 22:02:57,659 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2019-10-13 22:02:57,659 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_register_driver [2019-10-13 22:02:57,659 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2019-10-13 22:02:57,659 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_supported [2019-10-13 22:02:57,659 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2019-10-13 22:02:57,659 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2019-10-13 22:02:57,659 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2019-10-13 22:02:57,659 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2019-10-13 22:02:57,660 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_dma [2019-10-13 22:02:57,660 INFO L130 BoogieDeclarations]: Found specification of procedure btcx_riscmem_free [2019-10-13 22:02:57,660 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_print_irqbits [2019-10-13 22:02:57,660 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_core_irq [2019-10-13 22:02:57,660 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_wakeup [2019-10-13 22:02:57,660 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_shutdown [2019-10-13 22:02:57,660 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_reset [2019-10-13 22:02:57,660 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_risc_databuffer [2019-10-13 22:02:57,661 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_risc_stopper [2019-10-13 22:02:57,662 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_free_buffer [2019-10-13 22:02:57,667 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_sram_channel_setup [2019-10-13 22:02:57,667 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_sram_channel_dump [2019-10-13 22:02:57,667 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_core_get [2019-10-13 22:02:57,667 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_core_put [2019-10-13 22:02:57,667 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_register_driver [2019-10-13 22:02:57,667 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_unregister_driver [2019-10-13 22:02:57,668 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_get_driver [2019-10-13 22:02:57,668 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_buf_prepare [2019-10-13 22:02:57,668 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_buf_queue [2019-10-13 22:02:57,668 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_cancel_buffers [2019-10-13 22:02:57,668 INFO L130 BoogieDeclarations]: Found specification of procedure request_module_async [2019-10-13 22:02:57,670 INFO L130 BoogieDeclarations]: Found specification of procedure request_modules [2019-10-13 22:02:57,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:02:57,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:02:57,671 INFO L130 BoogieDeclarations]: Found specification of procedure flush_request_modules [2019-10-13 22:02:57,672 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_start_dma [2019-10-13 22:02:57,672 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_stop_dma [2019-10-13 22:02:57,672 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_restart_queue [2019-10-13 22:02:57,672 INFO L130 BoogieDeclarations]: Found specification of procedure do_cancel_buffers [2019-10-13 22:02:57,672 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_timeout [2019-10-13 22:02:57,673 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_mpeg_irq [2019-10-13 22:02:57,673 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_irq [2019-10-13 22:02:57,673 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_init_common [2019-10-13 22:02:57,673 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_fini_common [2019-10-13 22:02:57,673 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_suspend_common [2019-10-13 22:02:57,673 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_resume_common [2019-10-13 22:02:57,673 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_request_acquire [2019-10-13 22:02:57,673 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-10-13 22:02:57,673 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_request_release [2019-10-13 22:02:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_check_driver [2019-10-13 22:02:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 22:02:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_probe [2019-10-13 22:02:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_remove [2019-10-13 22:02:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_init [2019-10-13 22:02:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_fini [2019-10-13 22:02:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 22:02:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-10-13 22:02:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2019-10-13 22:02:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 22:02:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-10-13 22:02:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:02:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 22:02:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 22:02:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_cx88_core [2019-10-13 22:02:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock_of_cx88_core [2019-10-13 22:02:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock_of_cx88_core [2019-10-13 22:02:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock_of_cx88_core [2019-10-13 22:02:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock_of_cx88_core [2019-10-13 22:02:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_v4l2_ctrl_handler [2019-10-13 22:02:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock_of_v4l2_ctrl_handler [2019-10-13 22:02:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock_of_v4l2_ctrl_handler [2019-10-13 22:02:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock_of_v4l2_ctrl_handler [2019-10-13 22:02:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock_of_v4l2_ctrl_handler [2019-10-13 22:02:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-13 22:02:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-13 22:02:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-13 22:02:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-13 22:02:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_vb_lock_of_videobuf_queue [2019-10-13 22:02:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_vb_lock_of_videobuf_queue [2019-10-13 22:02:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_vb_lock_of_videobuf_queue [2019-10-13 22:02:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_vb_lock_of_videobuf_queue [2019-10-13 22:02:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_vb_lock_of_videobuf_queue [2019-10-13 22:02:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 22:02:57,678 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 22:02:57,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-13 22:02:57,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 22:02:57,678 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 22:02:57,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:02:57,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 22:02:57,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 22:02:57,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 22:02:57,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:02:57,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 22:02:57,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 22:02:57,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 22:03:11,763 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:03:11,763 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 22:03:11,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:03:11 BoogieIcfgContainer [2019-10-13 22:03:11,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:03:11,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:03:11,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:03:11,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:03:11,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:02:54" (1/3) ... [2019-10-13 22:03:11,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc0e82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:03:11, skipping insertion in model container [2019-10-13 22:03:11,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:57" (2/3) ... [2019-10-13 22:03:11,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc0e82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:03:11, skipping insertion in model container [2019-10-13 22:03:11,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:03:11" (3/3) ... [2019-10-13 22:03:11,773 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-media-video-cx88-cx8802-ko--32_7a--d47b389.i [2019-10-13 22:03:11,784 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:03:11,799 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:03:11,810 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:03:11,854 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:03:11,854 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:03:11,854 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:03:11,854 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:03:11,854 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:03:11,854 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:03:11,854 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:03:11,855 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:03:11,902 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states. [2019-10-13 22:03:11,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-13 22:03:11,908 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:03:11,909 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] [2019-10-13 22:03:11,911 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:03:11,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:03:11,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1830226527, now seen corresponding path program 1 times [2019-10-13 22:03:11,923 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:03:11,923 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889431891] [2019-10-13 22:03:11,924 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:11,924 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:11,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:03:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:03:12,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:03:12,654 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889431891] [2019-10-13 22:03:12,654 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:03:12,655 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:03:12,655 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003628886] [2019-10-13 22:03:12,660 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:03:12,660 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:03:12,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:03:12,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:03:12,677 INFO L87 Difference]: Start difference. First operand 832 states. Second operand 3 states. [2019-10-13 22:03:15,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:03:15,102 INFO L93 Difference]: Finished difference Result 1420 states and 1806 transitions. [2019-10-13 22:03:15,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:03:15,104 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-13 22:03:15,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:03:15,133 INFO L225 Difference]: With dead ends: 1420 [2019-10-13 22:03:15,134 INFO L226 Difference]: Without dead ends: 794 [2019-10-13 22:03:15,145 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:03:15,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2019-10-13 22:03:15,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 792. [2019-10-13 22:03:15,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 792 states. [2019-10-13 22:03:15,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 998 transitions. [2019-10-13 22:03:15,281 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 998 transitions. Word has length 24 [2019-10-13 22:03:15,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:03:15,281 INFO L462 AbstractCegarLoop]: Abstraction has 792 states and 998 transitions. [2019-10-13 22:03:15,281 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:03:15,282 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 998 transitions. [2019-10-13 22:03:15,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-13 22:03:15,284 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:03:15,284 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] [2019-10-13 22:03:15,284 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:03:15,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:03:15,285 INFO L82 PathProgramCache]: Analyzing trace with hash -903031973, now seen corresponding path program 1 times [2019-10-13 22:03:15,285 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:03:15,285 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422078219] [2019-10-13 22:03:15,285 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:15,285 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:15,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:03:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:03:15,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:03:15,496 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422078219] [2019-10-13 22:03:15,496 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:03:15,497 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:03:15,497 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869909651] [2019-10-13 22:03:15,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:03:15,499 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:03:15,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:03:15,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:03:15,499 INFO L87 Difference]: Start difference. First operand 792 states and 998 transitions. Second operand 3 states. [2019-10-13 22:03:17,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:03:17,413 INFO L93 Difference]: Finished difference Result 794 states and 999 transitions. [2019-10-13 22:03:17,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:03:17,413 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-13 22:03:17,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:03:17,421 INFO L225 Difference]: With dead ends: 794 [2019-10-13 22:03:17,421 INFO L226 Difference]: Without dead ends: 791 [2019-10-13 22:03:17,422 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:03:17,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2019-10-13 22:03:17,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 791. [2019-10-13 22:03:17,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2019-10-13 22:03:17,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 996 transitions. [2019-10-13 22:03:17,490 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 996 transitions. Word has length 25 [2019-10-13 22:03:17,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:03:17,491 INFO L462 AbstractCegarLoop]: Abstraction has 791 states and 996 transitions. [2019-10-13 22:03:17,491 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:03:17,491 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 996 transitions. [2019-10-13 22:03:17,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-13 22:03:17,492 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:03:17,492 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] [2019-10-13 22:03:17,493 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:03:17,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:03:17,493 INFO L82 PathProgramCache]: Analyzing trace with hash 2070200292, now seen corresponding path program 1 times [2019-10-13 22:03:17,493 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:03:17,493 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089836364] [2019-10-13 22:03:17,494 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:17,494 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:17,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:03:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:03:17,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:03:17,769 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089836364] [2019-10-13 22:03:17,769 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:03:17,770 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:03:17,770 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536073475] [2019-10-13 22:03:17,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:03:17,770 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:03:17,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:03:17,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:03:17,771 INFO L87 Difference]: Start difference. First operand 791 states and 996 transitions. Second operand 3 states. [2019-10-13 22:03:19,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:03:19,993 INFO L93 Difference]: Finished difference Result 793 states and 997 transitions. [2019-10-13 22:03:19,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:03:19,994 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-13 22:03:19,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:03:20,000 INFO L225 Difference]: With dead ends: 793 [2019-10-13 22:03:20,000 INFO L226 Difference]: Without dead ends: 790 [2019-10-13 22:03:20,001 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:03:20,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-10-13 22:03:20,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2019-10-13 22:03:20,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-10-13 22:03:20,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 994 transitions. [2019-10-13 22:03:20,049 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 994 transitions. Word has length 26 [2019-10-13 22:03:20,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:03:20,049 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 994 transitions. [2019-10-13 22:03:20,049 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:03:20,049 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 994 transitions. [2019-10-13 22:03:20,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-13 22:03:20,051 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:03:20,051 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] [2019-10-13 22:03:20,051 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:03:20,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:03:20,051 INFO L82 PathProgramCache]: Analyzing trace with hash -248875138, now seen corresponding path program 1 times [2019-10-13 22:03:20,052 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:03:20,052 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066196048] [2019-10-13 22:03:20,052 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:20,052 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:20,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:03:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:03:20,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:03:20,229 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066196048] [2019-10-13 22:03:20,229 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:03:20,229 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:03:20,230 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141046907] [2019-10-13 22:03:20,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:03:20,230 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:03:20,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:03:20,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:03:20,231 INFO L87 Difference]: Start difference. First operand 790 states and 994 transitions. Second operand 3 states. [2019-10-13 22:03:22,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:03:22,399 INFO L93 Difference]: Finished difference Result 792 states and 995 transitions. [2019-10-13 22:03:22,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:03:22,509 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-10-13 22:03:22,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:03:22,516 INFO L225 Difference]: With dead ends: 792 [2019-10-13 22:03:22,516 INFO L226 Difference]: Without dead ends: 777 [2019-10-13 22:03:22,517 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:03:22,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2019-10-13 22:03:22,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 777. [2019-10-13 22:03:22,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 777 states. [2019-10-13 22:03:22,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 977 transitions. [2019-10-13 22:03:22,573 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 977 transitions. Word has length 27 [2019-10-13 22:03:22,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:03:22,573 INFO L462 AbstractCegarLoop]: Abstraction has 777 states and 977 transitions. [2019-10-13 22:03:22,574 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:03:22,574 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 977 transitions. [2019-10-13 22:03:22,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-13 22:03:22,579 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:03:22,579 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] [2019-10-13 22:03:22,579 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:03:22,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:03:22,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1683998898, now seen corresponding path program 1 times [2019-10-13 22:03:22,580 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:03:22,580 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397360521] [2019-10-13 22:03:22,580 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:22,581 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:22,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:03:22,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:03:22,880 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 22:03:22,881 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397360521] [2019-10-13 22:03:22,881 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:03:22,881 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:03:22,881 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205705937] [2019-10-13 22:03:22,882 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:03:22,882 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:03:22,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:03:22,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:03:22,883 INFO L87 Difference]: Start difference. First operand 777 states and 977 transitions. Second operand 3 states. [2019-10-13 22:03:22,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:03:22,957 INFO L93 Difference]: Finished difference Result 1549 states and 1958 transitions. [2019-10-13 22:03:22,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:03:22,958 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2019-10-13 22:03:22,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:03:22,963 INFO L225 Difference]: With dead ends: 1549 [2019-10-13 22:03:22,964 INFO L226 Difference]: Without dead ends: 790 [2019-10-13 22:03:22,967 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:03:22,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-10-13 22:03:23,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2019-10-13 22:03:23,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-10-13 22:03:23,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 998 transitions. [2019-10-13 22:03:23,020 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 998 transitions. Word has length 76 [2019-10-13 22:03:23,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:03:23,020 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 998 transitions. [2019-10-13 22:03:23,021 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:03:23,021 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 998 transitions. [2019-10-13 22:03:23,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-13 22:03:23,025 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:03:23,025 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 22:03:23,026 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:03:23,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:03:23,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1296046541, now seen corresponding path program 1 times [2019-10-13 22:03:23,027 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:03:23,027 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167231201] [2019-10-13 22:03:23,027 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:23,027 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:23,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:03:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:03:23,317 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 22:03:23,317 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167231201] [2019-10-13 22:03:23,317 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:03:23,318 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 22:03:23,318 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069166567] [2019-10-13 22:03:23,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:03:23,319 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:03:23,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:03:23,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:03:23,319 INFO L87 Difference]: Start difference. First operand 790 states and 998 transitions. Second operand 5 states. [2019-10-13 22:03:23,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:03:23,401 INFO L93 Difference]: Finished difference Result 1568 states and 1985 transitions. [2019-10-13 22:03:23,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 22:03:23,402 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2019-10-13 22:03:23,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:03:23,409 INFO L225 Difference]: With dead ends: 1568 [2019-10-13 22:03:23,409 INFO L226 Difference]: Without dead ends: 790 [2019-10-13 22:03:23,415 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:03:23,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-10-13 22:03:23,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2019-10-13 22:03:23,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-10-13 22:03:23,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 997 transitions. [2019-10-13 22:03:23,523 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 997 transitions. Word has length 101 [2019-10-13 22:03:23,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:03:23,524 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 997 transitions. [2019-10-13 22:03:23,524 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 22:03:23,524 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 997 transitions. [2019-10-13 22:03:23,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-10-13 22:03:23,527 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:03:23,528 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 22:03:23,528 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:03:23,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:03:23,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1192876626, now seen corresponding path program 1 times [2019-10-13 22:03:23,529 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:03:23,529 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896869283] [2019-10-13 22:03:23,529 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:23,529 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:23,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:03:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:03:23,855 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 22:03:23,856 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896869283] [2019-10-13 22:03:23,856 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:03:23,856 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 22:03:23,856 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602062185] [2019-10-13 22:03:23,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 22:03:23,857 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:03:23,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 22:03:23,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 22:03:23,858 INFO L87 Difference]: Start difference. First operand 790 states and 997 transitions. Second operand 6 states. [2019-10-13 22:03:23,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:03:23,988 INFO L93 Difference]: Finished difference Result 1571 states and 1987 transitions. [2019-10-13 22:03:23,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 22:03:23,988 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 107 [2019-10-13 22:03:23,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:03:23,997 INFO L225 Difference]: With dead ends: 1571 [2019-10-13 22:03:23,997 INFO L226 Difference]: Without dead ends: 790 [2019-10-13 22:03:24,002 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 [2019-10-13 22:03:24,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-10-13 22:03:24,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2019-10-13 22:03:24,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-10-13 22:03:24,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 996 transitions. [2019-10-13 22:03:24,060 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 996 transitions. Word has length 107 [2019-10-13 22:03:24,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:03:24,061 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 996 transitions. [2019-10-13 22:03:24,061 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 22:03:24,061 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 996 transitions. [2019-10-13 22:03:24,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-13 22:03:24,065 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:03:24,065 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 22:03:24,066 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:03:24,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:03:24,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1617345646, now seen corresponding path program 1 times [2019-10-13 22:03:24,066 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:03:24,067 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544108643] [2019-10-13 22:03:24,067 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:24,067 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:24,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:03:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:03:24,419 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 22:03:24,420 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544108643] [2019-10-13 22:03:24,420 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:03:24,420 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 22:03:24,420 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622690255] [2019-10-13 22:03:24,421 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 22:03:24,421 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:03:24,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 22:03:24,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 22:03:24,422 INFO L87 Difference]: Start difference. First operand 790 states and 996 transitions. Second operand 6 states. [2019-10-13 22:03:24,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:03:24,525 INFO L93 Difference]: Finished difference Result 1571 states and 1985 transitions. [2019-10-13 22:03:24,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 22:03:24,525 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2019-10-13 22:03:24,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:03:24,531 INFO L225 Difference]: With dead ends: 1571 [2019-10-13 22:03:24,531 INFO L226 Difference]: Without dead ends: 790 [2019-10-13 22:03:24,534 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 [2019-10-13 22:03:24,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-10-13 22:03:24,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2019-10-13 22:03:24,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-10-13 22:03:24,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 995 transitions. [2019-10-13 22:03:24,582 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 995 transitions. Word has length 126 [2019-10-13 22:03:24,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:03:24,583 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 995 transitions. [2019-10-13 22:03:24,583 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 22:03:24,583 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 995 transitions. [2019-10-13 22:03:24,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-10-13 22:03:24,586 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:03:24,586 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 22:03:24,586 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:03:24,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:03:24,587 INFO L82 PathProgramCache]: Analyzing trace with hash -372988328, now seen corresponding path program 1 times [2019-10-13 22:03:24,587 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:03:24,587 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910183260] [2019-10-13 22:03:24,588 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:24,588 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:24,588 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:03:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:03:24,944 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 22:03:24,945 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910183260] [2019-10-13 22:03:24,945 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:03:24,946 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 22:03:24,946 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873165096] [2019-10-13 22:03:24,947 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 22:03:24,947 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:03:24,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 22:03:24,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 22:03:24,949 INFO L87 Difference]: Start difference. First operand 790 states and 995 transitions. Second operand 8 states. [2019-10-13 22:03:25,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:03:25,114 INFO L93 Difference]: Finished difference Result 1576 states and 1991 transitions. [2019-10-13 22:03:25,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 22:03:25,115 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 140 [2019-10-13 22:03:25,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:03:25,122 INFO L225 Difference]: With dead ends: 1576 [2019-10-13 22:03:25,123 INFO L226 Difference]: Without dead ends: 790 [2019-10-13 22:03:25,126 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-13 22:03:25,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-10-13 22:03:25,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2019-10-13 22:03:25,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-10-13 22:03:25,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 993 transitions. [2019-10-13 22:03:25,183 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 993 transitions. Word has length 140 [2019-10-13 22:03:25,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:03:25,184 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 993 transitions. [2019-10-13 22:03:25,184 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 22:03:25,184 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 993 transitions. [2019-10-13 22:03:25,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-13 22:03:25,191 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:03:25,192 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 22:03:25,192 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:03:25,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:03:25,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1065142245, now seen corresponding path program 1 times [2019-10-13 22:03:25,193 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:03:25,193 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288334017] [2019-10-13 22:03:25,193 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:25,193 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:25,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:03:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:03:25,762 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-13 22:03:25,763 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288334017] [2019-10-13 22:03:25,763 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:03:25,763 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 22:03:25,768 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814936073] [2019-10-13 22:03:25,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 22:03:25,770 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:03:25,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 22:03:25,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 22:03:25,770 INFO L87 Difference]: Start difference. First operand 790 states and 993 transitions. Second operand 8 states. [2019-10-13 22:03:25,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:03:25,917 INFO L93 Difference]: Finished difference Result 1576 states and 1987 transitions. [2019-10-13 22:03:25,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 22:03:25,918 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 210 [2019-10-13 22:03:25,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:03:25,925 INFO L225 Difference]: With dead ends: 1576 [2019-10-13 22:03:25,925 INFO L226 Difference]: Without dead ends: 790 [2019-10-13 22:03:25,930 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-13 22:03:25,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-10-13 22:03:25,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2019-10-13 22:03:25,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-10-13 22:03:25,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 992 transitions. [2019-10-13 22:03:25,984 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 992 transitions. Word has length 210 [2019-10-13 22:03:25,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:03:25,987 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 992 transitions. [2019-10-13 22:03:25,987 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 22:03:25,987 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 992 transitions. [2019-10-13 22:03:25,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-10-13 22:03:25,994 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:03:25,994 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 22:03:25,995 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:03:25,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:03:25,995 INFO L82 PathProgramCache]: Analyzing trace with hash 286954509, now seen corresponding path program 1 times [2019-10-13 22:03:25,996 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:03:25,996 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706947540] [2019-10-13 22:03:25,996 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:25,996 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:25,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:03:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:03:26,312 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-13 22:03:26,312 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706947540] [2019-10-13 22:03:26,313 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:03:26,313 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 22:03:26,313 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991201371] [2019-10-13 22:03:26,314 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:03:26,314 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:03:26,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:03:26,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:03:26,315 INFO L87 Difference]: Start difference. First operand 790 states and 992 transitions. Second operand 5 states. [2019-10-13 22:03:26,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:03:26,388 INFO L93 Difference]: Finished difference Result 1558 states and 1960 transitions. [2019-10-13 22:03:26,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 22:03:26,388 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 226 [2019-10-13 22:03:26,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:03:26,394 INFO L225 Difference]: With dead ends: 1558 [2019-10-13 22:03:26,394 INFO L226 Difference]: Without dead ends: 786 [2019-10-13 22:03:26,397 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:03:26,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2019-10-13 22:03:26,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 786. [2019-10-13 22:03:26,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 786 states. [2019-10-13 22:03:26,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 985 transitions. [2019-10-13 22:03:26,442 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 985 transitions. Word has length 226 [2019-10-13 22:03:26,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:03:26,443 INFO L462 AbstractCegarLoop]: Abstraction has 786 states and 985 transitions. [2019-10-13 22:03:26,444 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 22:03:26,444 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 985 transitions. [2019-10-13 22:03:26,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2019-10-13 22:03:26,449 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:03:26,449 INFO L380 BasicCegarLoop]: trace histogram [4, 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] [2019-10-13 22:03:26,450 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:03:26,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:03:26,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1921592564, now seen corresponding path program 1 times [2019-10-13 22:03:26,450 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:03:26,451 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326673711] [2019-10-13 22:03:26,451 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:26,451 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:26,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:03:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:03:27,120 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-13 22:03:27,121 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326673711] [2019-10-13 22:03:27,121 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:03:27,121 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 22:03:27,121 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804910191] [2019-10-13 22:03:27,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 22:03:27,122 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:03:27,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 22:03:27,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 22:03:27,123 INFO L87 Difference]: Start difference. First operand 786 states and 985 transitions. Second operand 11 states. [2019-10-13 22:03:27,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:03:27,245 INFO L93 Difference]: Finished difference Result 1564 states and 1962 transitions. [2019-10-13 22:03:27,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 22:03:27,246 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 247 [2019-10-13 22:03:27,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:03:27,251 INFO L225 Difference]: With dead ends: 1564 [2019-10-13 22:03:27,251 INFO L226 Difference]: Without dead ends: 786 [2019-10-13 22:03:27,254 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 [2019-10-13 22:03:27,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2019-10-13 22:03:27,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 786. [2019-10-13 22:03:27,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 786 states. [2019-10-13 22:03:27,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 984 transitions. [2019-10-13 22:03:27,299 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 984 transitions. Word has length 247 [2019-10-13 22:03:27,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:03:27,300 INFO L462 AbstractCegarLoop]: Abstraction has 786 states and 984 transitions. [2019-10-13 22:03:27,300 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 22:03:27,300 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 984 transitions. [2019-10-13 22:03:27,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2019-10-13 22:03:27,305 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:03:27,305 INFO L380 BasicCegarLoop]: trace histogram [4, 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] [2019-10-13 22:03:27,305 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:03:27,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:03:27,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1980305080, now seen corresponding path program 1 times [2019-10-13 22:03:27,306 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:03:27,306 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446981676] [2019-10-13 22:03:27,307 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:27,307 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:27,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:03:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:03:29,192 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-13 22:03:29,192 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446981676] [2019-10-13 22:03:29,192 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:03:29,193 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:03:29,193 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663343163] [2019-10-13 22:03:29,194 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:03:29,194 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:03:29,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:03:29,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:03:29,195 INFO L87 Difference]: Start difference. First operand 786 states and 984 transitions. Second operand 3 states.