java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--input--gameport--gameport.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:45:07,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:45:07,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:45:07,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:45:07,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:45:07,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:45:07,311 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:45:07,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:45:07,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:45:07,316 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:45:07,317 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:45:07,318 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:45:07,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:45:07,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:45:07,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:45:07,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:45:07,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:45:07,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:45:07,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:45:07,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:45:07,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:45:07,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:45:07,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:45:07,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:45:07,334 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:45:07,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:45:07,335 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:45:07,336 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:45:07,336 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:45:07,337 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:45:07,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:45:07,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:45:07,339 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:45:07,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:45:07,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:45:07,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:45:07,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:45:07,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:45:07,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:45:07,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:45:07,344 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:45:07,345 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 22:45:07,360 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:45:07,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:45:07,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:45:07,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:45:07,362 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:45:07,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:45:07,363 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:45:07,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:45:07,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:45:07,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:45:07,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:45:07,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:45:07,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:45:07,364 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:45:07,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:45:07,364 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:45:07,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:45:07,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:45:07,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:45:07,365 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:45:07,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:45:07,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:45:07,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:45:07,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:45:07,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:45:07,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:45:07,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:45:07,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:45:07,367 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 22:45:07,766 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:45:07,780 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:45:07,784 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:45:07,786 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:45:07,786 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:45:07,787 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--input--gameport--gameport.ko-entry_point.cil.out.i [2019-10-13 22:45:07,853 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eb0a0a28/8e599831e59a495c9834e6895ca08ca8/FLAGe2e8e3582 [2019-10-13 22:45:08,636 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:45:08,637 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--input--gameport--gameport.ko-entry_point.cil.out.i [2019-10-13 22:45:08,684 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eb0a0a28/8e599831e59a495c9834e6895ca08ca8/FLAGe2e8e3582 [2019-10-13 22:45:08,733 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eb0a0a28/8e599831e59a495c9834e6895ca08ca8 [2019-10-13 22:45:08,746 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:45:08,749 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:45:08,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:45:08,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:45:08,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:45:08,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:45:08" (1/1) ... [2019-10-13 22:45:08,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ccdd927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:08, skipping insertion in model container [2019-10-13 22:45:08,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:45:08" (1/1) ... [2019-10-13 22:45:08,770 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:45:08,894 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:45:10,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:45:10,151 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:45:10,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:45:10,704 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:45:10,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:10 WrapperNode [2019-10-13 22:45:10,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:45:10,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:45:10,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:45:10,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:45:10,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:10" (1/1) ... [2019-10-13 22:45:10,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:10" (1/1) ... [2019-10-13 22:45:10,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:10" (1/1) ... [2019-10-13 22:45:10,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:10" (1/1) ... [2019-10-13 22:45:10,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:10" (1/1) ... [2019-10-13 22:45:10,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:10" (1/1) ... [2019-10-13 22:45:10,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:10" (1/1) ... [2019-10-13 22:45:11,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:45:11,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:45:11,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:45:11,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:45:11,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:10" (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 22:45:11,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:45:11,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:45:11,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-10-13 22:45:11,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 22:45:11,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-13 22:45:11,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2019-10-13 22:45:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2019-10-13 22:45:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-13 22:45:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-13 22:45:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2019-10-13 22:45:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-10-13 22:45:11,101 INFO L138 BoogieDeclarations]: Found implementation of procedure paravirt_read_tsc [2019-10-13 22:45:11,101 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2019-10-13 22:45:11,101 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2019-10-13 22:45:11,102 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2019-10-13 22:45:11,103 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2019-10-13 22:45:11,105 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2019-10-13 22:45:11,105 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2019-10-13 22:45:11,105 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 22:45:11,106 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-13 22:45:11,106 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-13 22:45:11,106 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-13 22:45:11,106 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2019-10-13 22:45:11,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_ns [2019-10-13 22:45:11,106 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2019-10-13 22:45:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2019-10-13 22:45:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 22:45:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 22:45:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 22:45:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 22:45:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-13 22:45:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-13 22:45:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 22:45:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 22:45:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 22:45:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 22:45:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 22:45:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure device_is_registered [2019-10-13 22:45:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_read [2019-10-13 22:45:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_measure_speed [2019-10-13 22:45:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure old_gameport_measure_speed [2019-10-13 22:45:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_start_polling [2019-10-13 22:45:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_stop_polling [2019-10-13 22:45:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_run_poll_handler [2019-10-13 22:45:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_bind_driver [2019-10-13 22:45:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_find_driver [2019-10-13 22:45:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_get_event [2019-10-13 22:45:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_free_event [2019-10-13 22:45:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_remove_duplicate_events [2019-10-13 22:45:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_handle_events [2019-10-13 22:45:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_queue_event [2019-10-13 22:45:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_remove_pending_events [2019-10-13 22:45:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_get_pending_child [2019-10-13 22:45:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_description_show [2019-10-13 22:45:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure drvctl_store [2019-10-13 22:45:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_release_port [2019-10-13 22:45:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_phys [2019-10-13 22:45:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_init_port [2019-10-13 22:45:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_add_port [2019-10-13 22:45:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_destroy_port [2019-10-13 22:45:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_reconnect_port [2019-10-13 22:45:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_disconnect_port [2019-10-13 22:45:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_port [2019-10-13 22:45:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_port [2019-10-13 22:45:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure description_show [2019-10-13 22:45:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_driver_probe [2019-10-13 22:45:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_driver_remove [2019-10-13 22:45:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_attach_driver [2019-10-13 22:45:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_driver [2019-10-13 22:45:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_driver [2019-10-13 22:45:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_bus_match [2019-10-13 22:45:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_drv [2019-10-13 22:45:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_open [2019-10-13 22:45:11,116 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_close [2019-10-13 22:45:11,116 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_init [2019-10-13 22:45:11,116 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_exit [2019-10-13 22:45:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_bus_type_3 [2019-10-13 22:45:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2019-10-13 22:45:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_2 [2019-10-13 22:45:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2019-10-13 22:45:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2019-10-13 22:45:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2019-10-13 22:45:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure work_init_1 [2019-10-13 22:45:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2019-10-13 22:45:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2019-10-13 22:45:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure invoke_work_1 [2019-10-13 22:45:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2019-10-13 22:45:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:45:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_5 [2019-10-13 22:45:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_6 [2019-10-13 22:45:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_7 [2019-10-13 22:45:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_8 [2019-10-13 22:45:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_9 [2019-10-13 22:45:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_10 [2019-10-13 22:45:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_11 [2019-10-13 22:45:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_12 [2019-10-13 22:45:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_13 [2019-10-13 22:45:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_14 [2019-10-13 22:45:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_15 [2019-10-13 22:45:11,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___module_get_16 [2019-10-13 22:45:11,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_17 [2019-10-13 22:45:11,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cancel_work_sync_18 [2019-10-13 22:45:11,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 22:45:11,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 22:45:11,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 22:45:11,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 22:45:11,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 22:45:11,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-10-13 22:45:11,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-10-13 22:45:11,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-10-13 22:45:11,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-10-13 22:45:11,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-10-13 22:45:11,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 22:45:11,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-13 22:45:11,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2019-10-13 22:45:11,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __msecs_to_jiffies [2019-10-13 22:45:11,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-13 22:45:11,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 22:45:11,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2019-10-13 22:45:11,126 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-13 22:45:11,126 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-13 22:45:11,126 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-13 22:45:11,126 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-13 22:45:11,127 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-13 22:45:11,128 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_register [2019-10-13 22:45:11,128 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2019-10-13 22:45:11,128 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2019-10-13 22:45:11,129 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2019-10-13 22:45:11,129 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-10-13 22:45:11,129 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-13 22:45:11,129 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_name [2019-10-13 22:45:11,130 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-10-13 22:45:11,130 INFO L138 BoogieDeclarations]: Found implementation of procedure device_add [2019-10-13 22:45:11,130 INFO L138 BoogieDeclarations]: Found implementation of procedure device_attach [2019-10-13 22:45:11,133 INFO L138 BoogieDeclarations]: Found implementation of procedure device_bind_driver [2019-10-13 22:45:11,134 INFO L138 BoogieDeclarations]: Found implementation of procedure device_del [2019-10-13 22:45:11,134 INFO L138 BoogieDeclarations]: Found implementation of procedure device_initialize [2019-10-13 22:45:11,134 INFO L138 BoogieDeclarations]: Found implementation of procedure device_release_driver [2019-10-13 22:45:11,135 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_attach [2019-10-13 22:45:11,135 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_find [2019-10-13 22:45:11,135 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_register [2019-10-13 22:45:11,135 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2019-10-13 22:45:11,135 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2019-10-13 22:45:11,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2019-10-13 22:45:11,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_va_end [2019-10-13 22:45:11,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_va_start [2019-10-13 22:45:11,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 22:45:11,143 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-10-13 22:45:11,143 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2019-10-13 22:45:11,143 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-13 22:45:11,143 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 22:45:11,143 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 22:45:11,143 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2019-10-13 22:45:11,144 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2019-10-13 22:45:11,144 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2019-10-13 22:45:11,144 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2019-10-13 22:45:11,144 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2019-10-13 22:45:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 22:45:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 22:45:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 22:45:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 22:45:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:45:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_va_end [2019-10-13 22:45:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 22:45:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_va_start [2019-10-13 22:45:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 22:45:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-13 22:45:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2019-10-13 22:45:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-13 22:45:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 22:45:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-13 22:45:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-13 22:45:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 22:45:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2019-10-13 22:45:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2019-10-13 22:45:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-10-13 22:45:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-13 22:45:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2019-10-13 22:45:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 22:45:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2019-10-13 22:45:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure paravirt_read_tsc [2019-10-13 22:45:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2019-10-13 22:45:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2019-10-13 22:45:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2019-10-13 22:45:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2019-10-13 22:45:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2019-10-13 22:45:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2019-10-13 22:45:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2019-10-13 22:45:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2019-10-13 22:45:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2019-10-13 22:45:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 22:45:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-13 22:45:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-13 22:45:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-13 22:45:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-13 22:45:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 22:45:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-13 22:45:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-13 22:45:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-13 22:45:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-13 22:45:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-13 22:45:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2019-10-13 22:45:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 22:45:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure __msecs_to_jiffies [2019-10-13 22:45:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2019-10-13 22:45:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2019-10-13 22:45:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_ns [2019-10-13 22:45:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:45:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:45:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:45:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:45:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2019-10-13 22:45:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_11 [2019-10-13 22:45:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-10-13 22:45:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_10 [2019-10-13 22:45:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_12 [2019-10-13 22:45:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-10-13 22:45:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_17 [2019-10-13 22:45:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2019-10-13 22:45:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_5 [2019-10-13 22:45:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_7 [2019-10-13 22:45:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2019-10-13 22:45:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_6 [2019-10-13 22:45:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_9 [2019-10-13 22:45:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2019-10-13 22:45:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_8 [2019-10-13 22:45:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2019-10-13 22:45:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cancel_work_sync_18 [2019-10-13 22:45:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2019-10-13 22:45:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2019-10-13 22:45:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___module_get_16 [2019-10-13 22:45:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_14 [2019-10-13 22:45:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_13 [2019-10-13 22:45:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_15 [2019-10-13 22:45:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-10-13 22:45:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-10-13 22:45:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-10-13 22:45:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 22:45:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 22:45:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 22:45:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 22:45:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 22:45:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 22:45:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:45:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 22:45:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 22:45:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:45:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 22:45:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 22:45:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 22:45:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-13 22:45:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-13 22:45:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 22:45:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 22:45:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 22:45:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 22:45:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 22:45:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_bus_type_3 [2019-10-13 22:45:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2019-10-13 22:45:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_2 [2019-10-13 22:45:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2019-10-13 22:45:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2019-10-13 22:45:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2019-10-13 22:45:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure work_init_1 [2019-10-13 22:45:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2019-10-13 22:45:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2019-10-13 22:45:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure invoke_work_1 [2019-10-13 22:45:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2019-10-13 22:45:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure bus_register [2019-10-13 22:45:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2019-10-13 22:45:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure driver_register [2019-10-13 22:45:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2019-10-13 22:45:11,168 INFO L130 BoogieDeclarations]: Found specification of procedure driver_find [2019-10-13 22:45:11,168 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_name [2019-10-13 22:45:11,168 INFO L130 BoogieDeclarations]: Found specification of procedure device_is_registered [2019-10-13 22:45:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure device_initialize [2019-10-13 22:45:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure device_add [2019-10-13 22:45:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure device_del [2019-10-13 22:45:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure device_bind_driver [2019-10-13 22:45:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure device_release_driver [2019-10-13 22:45:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure device_attach [2019-10-13 22:45:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure driver_attach [2019-10-13 22:45:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2019-10-13 22:45:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-13 22:45:11,170 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-10-13 22:45:11,170 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-13 22:45:11,170 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_open [2019-10-13 22:45:11,170 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_close [2019-10-13 22:45:11,170 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_port [2019-10-13 22:45:11,170 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_port [2019-10-13 22:45:11,171 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_phys [2019-10-13 22:45:11,171 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_driver [2019-10-13 22:45:11,171 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_driver [2019-10-13 22:45:11,171 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_read [2019-10-13 22:45:11,171 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-10-13 22:45:11,171 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_start_polling [2019-10-13 22:45:11,171 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_stop_polling [2019-10-13 22:45:11,172 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2019-10-13 22:45:11,172 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_add_port [2019-10-13 22:45:11,172 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_attach_driver [2019-10-13 22:45:11,172 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_reconnect_port [2019-10-13 22:45:11,172 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_disconnect_port [2019-10-13 22:45:11,172 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_measure_speed [2019-10-13 22:45:11,172 INFO L130 BoogieDeclarations]: Found specification of procedure old_gameport_measure_speed [2019-10-13 22:45:11,172 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_run_poll_handler [2019-10-13 22:45:11,173 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 22:45:11,173 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_bind_driver [2019-10-13 22:45:11,173 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-13 22:45:11,173 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_find_driver [2019-10-13 22:45:11,173 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_get_event [2019-10-13 22:45:11,173 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_free_event [2019-10-13 22:45:11,173 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_remove_duplicate_events [2019-10-13 22:45:11,173 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_handle_events [2019-10-13 22:45:11,174 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_queue_event [2019-10-13 22:45:11,174 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_remove_pending_events [2019-10-13 22:45:11,174 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_get_pending_child [2019-10-13 22:45:11,174 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_description_show [2019-10-13 22:45:11,174 INFO L130 BoogieDeclarations]: Found specification of procedure drvctl_store [2019-10-13 22:45:11,174 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_release_port [2019-10-13 22:45:11,174 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_init_port [2019-10-13 22:45:11,174 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_destroy_port [2019-10-13 22:45:11,174 INFO L130 BoogieDeclarations]: Found specification of procedure description_show [2019-10-13 22:45:11,175 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_driver_probe [2019-10-13 22:45:11,175 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_driver_remove [2019-10-13 22:45:11,175 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_bus_match [2019-10-13 22:45:11,175 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_drv [2019-10-13 22:45:11,175 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2019-10-13 22:45:11,175 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_init [2019-10-13 22:45:11,175 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_exit [2019-10-13 22:45:11,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 22:45:11,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 22:45:11,176 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2019-10-13 22:45:11,176 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:45:11,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 22:45:11,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 22:45:11,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 22:45:11,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 22:45:11,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 22:45:11,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-10-13 22:45:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-10-13 22:45:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-13 22:45:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 22:45:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 22:45:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:45:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 22:45:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 22:45:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:45:12,133 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 22:45:14,103 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-10-13 22:45:16,792 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:45:16,792 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 22:45:16,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:45:16 BoogieIcfgContainer [2019-10-13 22:45:16,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:45:16,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:45:16,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:45:16,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:45:16,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:45:08" (1/3) ... [2019-10-13 22:45:16,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea877ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:45:16, skipping insertion in model container [2019-10-13 22:45:16,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:10" (2/3) ... [2019-10-13 22:45:16,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea877ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:45:16, skipping insertion in model container [2019-10-13 22:45:16,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:45:16" (3/3) ... [2019-10-13 22:45:16,807 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--input--gameport--gameport.ko-entry_point.cil.out.i [2019-10-13 22:45:16,815 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:45:16,825 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:45:16,837 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:45:16,874 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:45:16,874 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:45:16,875 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:45:16,875 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:45:16,875 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:45:16,875 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:45:16,875 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:45:16,875 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:45:16,929 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states. [2019-10-13 22:45:16,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-13 22:45:16,966 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:45:16,967 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:45:16,970 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:45:16,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:45:16,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1321671801, now seen corresponding path program 1 times [2019-10-13 22:45:16,985 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:45:16,986 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780564569] [2019-10-13 22:45:16,986 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:16,986 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:16,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:45:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:45:17,857 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2019-10-13 22:45:17,858 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780564569] [2019-10-13 22:45:17,859 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:45:17,859 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:45:17,860 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339681288] [2019-10-13 22:45:17,865 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:45:17,866 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:45:17,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:45:17,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:45:17,883 INFO L87 Difference]: Start difference. First operand 863 states. Second operand 3 states. [2019-10-13 22:45:18,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:45:18,193 INFO L93 Difference]: Finished difference Result 2145 states and 2850 transitions. [2019-10-13 22:45:18,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:45:18,196 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2019-10-13 22:45:18,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:45:18,228 INFO L225 Difference]: With dead ends: 2145 [2019-10-13 22:45:18,229 INFO L226 Difference]: Without dead ends: 1394 [2019-10-13 22:45:18,239 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 22:45:18,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2019-10-13 22:45:18,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1370. [2019-10-13 22:45:18,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1370 states. [2019-10-13 22:45:18,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 1737 transitions. [2019-10-13 22:45:18,409 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 1737 transitions. Word has length 130 [2019-10-13 22:45:18,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:45:18,411 INFO L462 AbstractCegarLoop]: Abstraction has 1370 states and 1737 transitions. [2019-10-13 22:45:18,412 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:45:18,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 1737 transitions. [2019-10-13 22:45:18,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-10-13 22:45:18,419 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:45:18,420 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:45:18,421 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:45:18,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:45:18,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1401293153, now seen corresponding path program 1 times [2019-10-13 22:45:18,421 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:45:18,422 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293084579] [2019-10-13 22:45:18,422 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:18,422 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:18,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:45:18,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:45:18,766 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2019-10-13 22:45:18,766 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293084579] [2019-10-13 22:45:18,766 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:45:18,766 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:45:18,767 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871181651] [2019-10-13 22:45:18,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:45:18,770 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:45:18,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:45:18,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:45:18,771 INFO L87 Difference]: Start difference. First operand 1370 states and 1737 transitions. Second operand 3 states. [2019-10-13 22:45:18,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:45:18,848 INFO L93 Difference]: Finished difference Result 2690 states and 3517 transitions. [2019-10-13 22:45:18,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:45:18,849 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2019-10-13 22:45:18,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:45:18,864 INFO L225 Difference]: With dead ends: 2690 [2019-10-13 22:45:18,865 INFO L226 Difference]: Without dead ends: 1347 [2019-10-13 22:45:18,870 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:45:18,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2019-10-13 22:45:18,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1346. [2019-10-13 22:45:18,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1346 states. [2019-10-13 22:45:18,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1707 transitions. [2019-10-13 22:45:18,956 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1707 transitions. Word has length 127 [2019-10-13 22:45:18,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:45:18,958 INFO L462 AbstractCegarLoop]: Abstraction has 1346 states and 1707 transitions. [2019-10-13 22:45:18,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:45:18,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1707 transitions. [2019-10-13 22:45:18,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-13 22:45:18,961 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:45:18,961 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:45:18,962 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:45:18,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:45:18,962 INFO L82 PathProgramCache]: Analyzing trace with hash -849297493, now seen corresponding path program 1 times [2019-10-13 22:45:18,963 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:45:18,963 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405641718] [2019-10-13 22:45:18,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:18,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:18,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:45:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:45:19,342 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2019-10-13 22:45:19,342 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405641718] [2019-10-13 22:45:19,343 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:45:19,343 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 22:45:19,343 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468347349] [2019-10-13 22:45:19,344 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:45:19,344 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:45:19,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:45:19,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:45:19,346 INFO L87 Difference]: Start difference. First operand 1346 states and 1707 transitions. Second operand 5 states. [2019-10-13 22:45:21,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:45:21,629 INFO L93 Difference]: Finished difference Result 5123 states and 6637 transitions. [2019-10-13 22:45:21,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 22:45:21,629 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2019-10-13 22:45:21,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:45:21,658 INFO L225 Difference]: With dead ends: 5123 [2019-10-13 22:45:21,659 INFO L226 Difference]: Without dead ends: 3824 [2019-10-13 22:45:21,666 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:45:21,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3824 states. [2019-10-13 22:45:21,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3824 to 3762. [2019-10-13 22:45:21,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3762 states. [2019-10-13 22:45:21,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3762 states to 3762 states and 4903 transitions. [2019-10-13 22:45:21,868 INFO L78 Accepts]: Start accepts. Automaton has 3762 states and 4903 transitions. Word has length 133 [2019-10-13 22:45:21,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:45:21,869 INFO L462 AbstractCegarLoop]: Abstraction has 3762 states and 4903 transitions. [2019-10-13 22:45:21,869 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 22:45:21,869 INFO L276 IsEmpty]: Start isEmpty. Operand 3762 states and 4903 transitions. [2019-10-13 22:45:21,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 22:45:21,873 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:45:21,873 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:45:21,874 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:45:21,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:45:21,874 INFO L82 PathProgramCache]: Analyzing trace with hash 620958302, now seen corresponding path program 1 times [2019-10-13 22:45:21,874 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:45:21,875 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441731560] [2019-10-13 22:45:21,875 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:21,875 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:21,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:45:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:45:22,115 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2019-10-13 22:45:22,115 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441731560] [2019-10-13 22:45:22,116 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:45:22,116 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:45:22,116 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393561339] [2019-10-13 22:45:22,117 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:45:22,117 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:45:22,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:45:22,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:45:22,118 INFO L87 Difference]: Start difference. First operand 3762 states and 4903 transitions. Second operand 3 states. [2019-10-13 22:45:22,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:45:22,569 INFO L93 Difference]: Finished difference Result 10796 states and 14029 transitions. [2019-10-13 22:45:22,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:45:22,570 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2019-10-13 22:45:22,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:45:22,634 INFO L225 Difference]: With dead ends: 10796 [2019-10-13 22:45:22,635 INFO L226 Difference]: Without dead ends: 7081 [2019-10-13 22:45:22,657 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 22:45:22,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7081 states. [2019-10-13 22:45:23,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7081 to 7077. [2019-10-13 22:45:23,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7077 states. [2019-10-13 22:45:23,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7077 states to 7077 states and 9174 transitions. [2019-10-13 22:45:23,110 INFO L78 Accepts]: Start accepts. Automaton has 7077 states and 9174 transitions. Word has length 150 [2019-10-13 22:45:23,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:45:23,111 INFO L462 AbstractCegarLoop]: Abstraction has 7077 states and 9174 transitions. [2019-10-13 22:45:23,111 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:45:23,111 INFO L276 IsEmpty]: Start isEmpty. Operand 7077 states and 9174 transitions. [2019-10-13 22:45:23,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-13 22:45:23,118 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:45:23,119 INFO L380 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 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] [2019-10-13 22:45:23,119 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:45:23,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:45:23,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1235945513, now seen corresponding path program 1 times [2019-10-13 22:45:23,120 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:45:23,121 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017774083] [2019-10-13 22:45:23,121 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:23,121 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:23,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:45:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:45:23,514 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2019-10-13 22:45:23,515 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017774083] [2019-10-13 22:45:23,515 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:45:23,515 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:45:23,516 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910883698] [2019-10-13 22:45:23,516 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:45:23,516 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:45:23,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:45:23,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:45:23,517 INFO L87 Difference]: Start difference. First operand 7077 states and 9174 transitions. Second operand 3 states. [2019-10-13 22:45:24,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:45:24,451 INFO L93 Difference]: Finished difference Result 17609 states and 22846 transitions. [2019-10-13 22:45:24,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:45:24,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2019-10-13 22:45:24,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:45:24,539 INFO L225 Difference]: With dead ends: 17609 [2019-10-13 22:45:24,539 INFO L226 Difference]: Without dead ends: 10579 [2019-10-13 22:45:24,572 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:45:24,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10579 states. [2019-10-13 22:45:25,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10579 to 10575. [2019-10-13 22:45:25,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10575 states. [2019-10-13 22:45:25,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10575 states to 10575 states and 13696 transitions. [2019-10-13 22:45:25,948 INFO L78 Accepts]: Start accepts. Automaton has 10575 states and 13696 transitions. Word has length 164 [2019-10-13 22:45:25,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:45:25,949 INFO L462 AbstractCegarLoop]: Abstraction has 10575 states and 13696 transitions. [2019-10-13 22:45:25,949 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:45:25,949 INFO L276 IsEmpty]: Start isEmpty. Operand 10575 states and 13696 transitions. [2019-10-13 22:45:25,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-13 22:45:25,953 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:45:25,954 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 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] [2019-10-13 22:45:25,954 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:45:25,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:45:25,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1530536242, now seen corresponding path program 1 times [2019-10-13 22:45:25,955 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:45:25,955 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138638548] [2019-10-13 22:45:25,955 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:25,955 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:25,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:45:26,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:45:26,444 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2019-10-13 22:45:26,445 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138638548] [2019-10-13 22:45:26,445 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:45:26,445 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 22:45:26,445 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38958466] [2019-10-13 22:45:26,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 22:45:26,446 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:45:26,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 22:45:26,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 22:45:26,447 INFO L87 Difference]: Start difference. First operand 10575 states and 13696 transitions. Second operand 6 states. [2019-10-13 22:45:26,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:45:26,959 INFO L93 Difference]: Finished difference Result 21247 states and 28302 transitions. [2019-10-13 22:45:26,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 22:45:26,960 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 176 [2019-10-13 22:45:26,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:45:27,060 INFO L225 Difference]: With dead ends: 21247 [2019-10-13 22:45:27,060 INFO L226 Difference]: Without dead ends: 10719 [2019-10-13 22:45:27,114 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 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 22:45:27,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10719 states. [2019-10-13 22:45:27,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10719 to 10683. [2019-10-13 22:45:27,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10683 states. [2019-10-13 22:45:27,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10683 states to 10683 states and 13858 transitions. [2019-10-13 22:45:27,847 INFO L78 Accepts]: Start accepts. Automaton has 10683 states and 13858 transitions. Word has length 176 [2019-10-13 22:45:27,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:45:27,851 INFO L462 AbstractCegarLoop]: Abstraction has 10683 states and 13858 transitions. [2019-10-13 22:45:27,851 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 22:45:27,851 INFO L276 IsEmpty]: Start isEmpty. Operand 10683 states and 13858 transitions. [2019-10-13 22:45:27,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-13 22:45:27,857 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:45:27,858 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 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] [2019-10-13 22:45:27,858 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:45:27,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:45:27,858 INFO L82 PathProgramCache]: Analyzing trace with hash -400929163, now seen corresponding path program 1 times [2019-10-13 22:45:27,859 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:45:27,859 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130191378] [2019-10-13 22:45:27,859 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:27,859 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:27,859 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:45:28,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:45:28,294 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2019-10-13 22:45:28,295 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130191378] [2019-10-13 22:45:28,295 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:45:28,295 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:45:28,295 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665562136] [2019-10-13 22:45:28,296 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:45:28,296 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:45:28,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:45:28,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:45:28,297 INFO L87 Difference]: Start difference. First operand 10683 states and 13858 transitions. Second operand 3 states. [2019-10-13 22:45:29,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:45:29,008 INFO L93 Difference]: Finished difference Result 21283 states and 27617 transitions. [2019-10-13 22:45:29,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:45:29,008 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2019-10-13 22:45:29,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:45:29,057 INFO L225 Difference]: With dead ends: 21283 [2019-10-13 22:45:29,057 INFO L226 Difference]: Without dead ends: 10647 [2019-10-13 22:45:29,092 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:45:29,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10647 states. [2019-10-13 22:45:29,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10647 to 10647. [2019-10-13 22:45:29,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10647 states. [2019-10-13 22:45:29,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10647 states to 10647 states and 13768 transitions. [2019-10-13 22:45:29,659 INFO L78 Accepts]: Start accepts. Automaton has 10647 states and 13768 transitions. Word has length 186 [2019-10-13 22:45:29,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:45:29,660 INFO L462 AbstractCegarLoop]: Abstraction has 10647 states and 13768 transitions. [2019-10-13 22:45:29,660 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:45:29,660 INFO L276 IsEmpty]: Start isEmpty. Operand 10647 states and 13768 transitions. [2019-10-13 22:45:29,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-13 22:45:29,665 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:45:29,665 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 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] [2019-10-13 22:45:29,666 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:45:29,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:45:29,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1520886530, now seen corresponding path program 1 times [2019-10-13 22:45:29,666 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:45:29,666 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638228650] [2019-10-13 22:45:29,667 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:29,667 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:29,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:45:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:45:29,919 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2019-10-13 22:45:29,919 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638228650] [2019-10-13 22:45:29,920 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:45:29,920 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:45:29,920 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774460472] [2019-10-13 22:45:29,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:45:29,921 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:45:29,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:45:29,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:45:29,921 INFO L87 Difference]: Start difference. First operand 10647 states and 13768 transitions. Second operand 3 states. [2019-10-13 22:45:30,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:45:30,774 INFO L93 Difference]: Finished difference Result 31703 states and 40974 transitions. [2019-10-13 22:45:30,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:45:30,775 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2019-10-13 22:45:30,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:45:30,900 INFO L225 Difference]: With dead ends: 31703 [2019-10-13 22:45:30,901 INFO L226 Difference]: Without dead ends: 21103 [2019-10-13 22:45:30,935 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 22:45:30,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21103 states. [2019-10-13 22:45:32,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21103 to 21099. [2019-10-13 22:45:32,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21099 states. [2019-10-13 22:45:32,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21099 states to 21099 states and 27242 transitions. [2019-10-13 22:45:32,139 INFO L78 Accepts]: Start accepts. Automaton has 21099 states and 27242 transitions. Word has length 181 [2019-10-13 22:45:32,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:45:32,139 INFO L462 AbstractCegarLoop]: Abstraction has 21099 states and 27242 transitions. [2019-10-13 22:45:32,139 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:45:32,140 INFO L276 IsEmpty]: Start isEmpty. Operand 21099 states and 27242 transitions. [2019-10-13 22:45:32,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-13 22:45:32,146 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:45:32,147 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 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] [2019-10-13 22:45:32,147 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:45:32,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:45:32,148 INFO L82 PathProgramCache]: Analyzing trace with hash 130845868, now seen corresponding path program 1 times [2019-10-13 22:45:32,148 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:45:32,148 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021674914] [2019-10-13 22:45:32,148 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:32,149 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:32,149 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:45:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:45:32,423 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2019-10-13 22:45:32,423 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021674914] [2019-10-13 22:45:32,424 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:45:32,424 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 22:45:32,424 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828493247] [2019-10-13 22:45:32,426 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:45:32,426 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:45:32,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:45:32,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:45:32,426 INFO L87 Difference]: Start difference. First operand 21099 states and 27242 transitions. Second operand 5 states. [2019-10-13 22:45:36,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:45:36,498 INFO L93 Difference]: Finished difference Result 42151 states and 54439 transitions. [2019-10-13 22:45:36,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 22:45:36,501 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 188 [2019-10-13 22:45:36,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:45:36,613 INFO L225 Difference]: With dead ends: 42151 [2019-10-13 22:45:36,614 INFO L226 Difference]: Without dead ends: 21099 [2019-10-13 22:45:36,662 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:45:36,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21099 states. [2019-10-13 22:45:37,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21099 to 21027. [2019-10-13 22:45:37,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21027 states. [2019-10-13 22:45:37,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21027 states to 21027 states and 27062 transitions. [2019-10-13 22:45:37,693 INFO L78 Accepts]: Start accepts. Automaton has 21027 states and 27062 transitions. Word has length 188 [2019-10-13 22:45:37,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:45:37,694 INFO L462 AbstractCegarLoop]: Abstraction has 21027 states and 27062 transitions. [2019-10-13 22:45:37,694 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 22:45:37,694 INFO L276 IsEmpty]: Start isEmpty. Operand 21027 states and 27062 transitions. [2019-10-13 22:45:37,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-13 22:45:37,701 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:45:37,701 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 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] [2019-10-13 22:45:37,701 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:45:37,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:45:37,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1685042092, now seen corresponding path program 1 times [2019-10-13 22:45:37,702 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:45:37,702 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920455481] [2019-10-13 22:45:37,702 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:37,703 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:37,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:45:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:45:37,996 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2019-10-13 22:45:37,996 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920455481] [2019-10-13 22:45:37,997 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:45:37,997 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 22:45:37,997 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292028387] [2019-10-13 22:45:37,998 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:45:37,998 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:45:37,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:45:37,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:45:37,999 INFO L87 Difference]: Start difference. First operand 21027 states and 27062 transitions. Second operand 5 states.