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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:21:03,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:21:03,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:21:03,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:21:03,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:21:03,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:21:03,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:21:03,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:21:03,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:21:03,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:21:03,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:21:03,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:21:03,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:21:03,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:21:03,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:21:03,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:21:03,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:21:03,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:21:03,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:21:03,143 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:21:03,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:21:03,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:21:03,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:21:03,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:21:03,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:21:03,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:21:03,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:21:03,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:21:03,157 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:21:03,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:21:03,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:21:03,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:21:03,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:21:03,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:21:03,163 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:21:03,164 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:21:03,164 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:21:03,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:21:03,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:21:03,167 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:21:03,170 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:21:03,171 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 22:21:03,205 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:21:03,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:21:03,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:21:03,210 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:21:03,210 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:21:03,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:21:03,210 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:21:03,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:21:03,211 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:21:03,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:21:03,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:21:03,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:21:03,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:21:03,212 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:21:03,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:21:03,212 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:21:03,215 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:21:03,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:21:03,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:21:03,215 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:21:03,216 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:21:03,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:21:03,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:21:03,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:21:03,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:21:03,217 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:21:03,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:21:03,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:21:03,217 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 22:21:03,522 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:21:03,535 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:21:03,539 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:21:03,540 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:21:03,541 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:21:03,541 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i [2019-10-13 22:21:03,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9843e3620/6268e35399414b9d9d93716dad908a22/FLAG3c29482f8 [2019-10-13 22:21:04,460 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:21:04,461 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i [2019-10-13 22:21:04,513 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9843e3620/6268e35399414b9d9d93716dad908a22/FLAG3c29482f8 [2019-10-13 22:21:04,938 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9843e3620/6268e35399414b9d9d93716dad908a22 [2019-10-13 22:21:04,948 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:21:04,950 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:21:04,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:21:04,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:21:04,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:21:04,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:21:04" (1/1) ... [2019-10-13 22:21:04,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72d6f464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:21:04, skipping insertion in model container [2019-10-13 22:21:04,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:21:04" (1/1) ... [2019-10-13 22:21:04,965 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:21:05,080 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:21:05,752 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3591] [2019-10-13 22:21:05,752 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3592-3593] [2019-10-13 22:21:06,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:21:07,306 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:21:07,402 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3591] [2019-10-13 22:21:07,402 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3592-3593] [2019-10-13 22:21:07,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:21:07,864 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:21:07,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:21:07 WrapperNode [2019-10-13 22:21:07,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:21:07,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:21:07,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:21:07,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:21:07,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:21:07" (1/1) ... [2019-10-13 22:21:07,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:21:07" (1/1) ... [2019-10-13 22:21:07,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:21:07" (1/1) ... [2019-10-13 22:21:07,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:21:07" (1/1) ... [2019-10-13 22:21:08,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:21:07" (1/1) ... [2019-10-13 22:21:08,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:21:07" (1/1) ... [2019-10-13 22:21:08,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:21:07" (1/1) ... [2019-10-13 22:21:08,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:21:08,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:21:08,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:21:08,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:21:08,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:21:07" (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 22:21:08,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:21:08,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:21:08,330 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-13 22:21:08,330 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2019-10-13 22:21:08,330 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 22:21:08,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_1 [2019-10-13 22:21:08,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_5 [2019-10-13 22:21:08,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_8 [2019-10-13 22:21:08,331 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2019-10-13 22:21:08,331 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2019-10-13 22:21:08,331 INFO L138 BoogieDeclarations]: Found implementation of procedure outsw [2019-10-13 22:21:08,332 INFO L138 BoogieDeclarations]: Found implementation of procedure insw [2019-10-13 22:21:08,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 22:21:08,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmalloc_12 [2019-10-13 22:21:08,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 22:21:08,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 22:21:08,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 22:21:08,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 22:21:08,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 22:21:08,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 22:21:08,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 22:21:08,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 22:21:08,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 22:21:08,336 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-13 22:21:08,337 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-13 22:21:08,337 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tty_driver [2019-10-13 22:21:08,337 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2019-10-13 22:21:08,337 INFO L138 BoogieDeclarations]: Found implementation of procedure flag_buf_ptr [2019-10-13 22:21:08,338 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_cts_enabled [2019-10-13 22:21:08,338 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_char [2019-10-13 22:21:08,338 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2019-10-13 22:21:08,338 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 22:21:08,338 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 22:21:08,339 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2019-10-13 22:21:08,339 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2019-10-13 22:21:08,339 INFO L138 BoogieDeclarations]: Found implementation of procedure WaitTillCardIsFree [2019-10-13 22:21:08,339 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_card [2019-10-13 22:21:08,340 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_card [2019-10-13 22:21:08,340 INFO L138 BoogieDeclarations]: Found implementation of procedure raise_dtr [2019-10-13 22:21:08,340 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_dtr [2019-10-13 22:21:08,340 INFO L138 BoogieDeclarations]: Found implementation of procedure raise_rts [2019-10-13 22:21:08,340 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_rts [2019-10-13 22:21:08,341 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_dtr_rts [2019-10-13 22:21:08,341 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_dtr_rts [2019-10-13 22:21:08,341 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_tx [2019-10-13 22:21:08,341 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_interrupt [2019-10-13 22:21:08,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_config_port [2019-10-13 22:21:08,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_setup_board [2019-10-13 22:21:08,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_activate [2019-10-13 22:21:08,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_carrier_raised [2019-10-13 22:21:08,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_find_port [2019-10-13 22:21:08,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_open [2019-10-13 22:21:08,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_shutdown_port [2019-10-13 22:21:08,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_flush_buffer [2019-10-13 22:21:08,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_shutdown [2019-10-13 22:21:08,344 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_close [2019-10-13 22:21:08,344 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_write [2019-10-13 22:21:08,344 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_put_char [2019-10-13 22:21:08,344 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_flush_chars [2019-10-13 22:21:08,344 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_write_room [2019-10-13 22:21:08,344 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_chars_in_buffer [2019-10-13 22:21:08,345 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_send_break [2019-10-13 22:21:08,345 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_tiocmget [2019-10-13 22:21:08,345 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_tiocmset [2019-10-13 22:21:08,345 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_set_serial_info [2019-10-13 22:21:08,346 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_get_serial_info [2019-10-13 22:21:08,346 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_ioctl [2019-10-13 22:21:08,346 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_set_termios [2019-10-13 22:21:08,346 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_throttle [2019-10-13 22:21:08,346 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_unthrottle [2019-10-13 22:21:08,347 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_stop [2019-10-13 22:21:08,347 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_start [2019-10-13 22:21:08,347 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_hangup [2019-10-13 22:21:08,347 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_card [2019-10-13 22:21:08,347 INFO L138 BoogieDeclarations]: Found implementation of procedure load_firmware [2019-10-13 22:21:08,347 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_probe [2019-10-13 22:21:08,347 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_remove [2019-10-13 22:21:08,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_init [2019-10-13 22:21:08,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_exit [2019-10-13 22:21:08,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_tty_operations_3 [2019-10-13 22:21:08,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_pci_driver_5 [2019-10-13 22:21:08,349 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2019-10-13 22:21:08,349 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2019-10-13 22:21:08,349 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2019-10-13 22:21:08,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2019-10-13 22:21:08,349 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2019-10-13 22:21:08,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_port_operations_2 [2019-10-13 22:21:08,349 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:21:08,350 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-13 22:21:08,350 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-13 22:21:08,350 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-13 22:21:08,350 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 22:21:08,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmem_cache_alloc_16 [2019-10-13 22:21:08,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_20 [2019-10-13 22:21:08,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_21 [2019-10-13 22:21:08,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_22 [2019-10-13 22:21:08,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2019-10-13 22:21:08,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-13 22:21:08,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2019-10-13 22:21:08,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2019-10-13 22:21:08,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2019-10-13 22:21:08,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2019-10-13 22:21:08,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-13 22:21:08,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-13 22:21:08,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-10-13 22:21:08,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-10-13 22:21:08,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2019-10-13 22:21:08,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_register_driver [2019-10-13 22:21:08,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 22:21:08,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __tty_alloc_driver [2019-10-13 22:21:08,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-13 22:21:08,354 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-13 22:21:08,354 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-13 22:21:08,355 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-13 22:21:08,355 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-13 22:21:08,355 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-13 22:21:08,355 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-13 22:21:08,355 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-10-13 22:21:08,355 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-10-13 22:21:08,356 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-13 22:21:08,356 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-10-13 22:21:08,356 INFO L138 BoogieDeclarations]: Found implementation of procedure do_SAK [2019-10-13 22:21:08,356 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2019-10-13 22:21:08,356 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2019-10-13 22:21:08,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 22:21:08,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destruct_2 [2019-10-13 22:21:08,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_3 [2019-10-13 22:21:08,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 22:21:08,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2019-10-13 22:21:08,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_setup_3 [2019-10-13 22:21:08,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2019-10-13 22:21:08,358 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-13 22:21:08,358 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-10-13 22:21:08,358 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2019-10-13 22:21:08,359 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2019-10-13 22:21:08,359 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-13 22:21:08,359 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 22:21:08,359 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2019-10-13 22:21:08,359 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2019-10-13 22:21:08,359 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2019-10-13 22:21:08,360 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_region [2019-10-13 22:21:08,360 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2019-10-13 22:21:08,360 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 22:21:08,360 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2019-10-13 22:21:08,360 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2019-10-13 22:21:08,360 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2019-10-13 22:21:08,360 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2019-10-13 22:21:08,361 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2019-10-13 22:21:08,361 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2019-10-13 22:21:08,361 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_flags [2019-10-13 22:21:08,361 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2019-10-13 22:21:08,362 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_alloc_xmit_buf [2019-10-13 22:21:08,362 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_close [2019-10-13 22:21:08,362 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_destroy [2019-10-13 22:21:08,362 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_free_xmit_buf [2019-10-13 22:21:08,362 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_hangup [2019-10-13 22:21:08,363 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_init [2019-10-13 22:21:08,363 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_open [2019-10-13 22:21:08,363 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_register_device [2019-10-13 22:21:08,363 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2019-10-13 22:21:08,363 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_prepare_flip_string [2019-10-13 22:21:08,363 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_driver [2019-10-13 22:21:08,364 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_set_operations [2019-10-13 22:21:08,364 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_device [2019-10-13 22:21:08,364 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2019-10-13 22:21:08,364 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2019-10-13 22:21:08,364 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 22:21:08,364 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 22:21:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 22:21:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 22:21:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 22:21:08,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:21:08,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 22:21:08,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2019-10-13 22:21:08,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2019-10-13 22:21:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 22:21:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2019-10-13 22:21:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-10-13 22:21:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-13 22:21:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-13 22:21:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 22:21:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-13 22:21:08,367 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2019-10-13 22:21:08,367 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 22:21:08,367 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-13 22:21:08,367 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-13 22:21:08,367 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-13 22:21:08,367 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 22:21:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_1 [2019-10-13 22:21:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-13 22:21:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_5 [2019-10-13 22:21:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-13 22:21:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_8 [2019-10-13 22:21:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-13 22:21:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-13 22:21:08,369 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-13 22:21:08,369 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 22:21:08,369 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2019-10-13 22:21:08,369 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-10-13 22:21:08,369 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-10-13 22:21:08,369 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2019-10-13 22:21:08,369 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2019-10-13 22:21:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure outsw [2019-10-13 22:21:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure insw [2019-10-13 22:21:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 22:21:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 22:21:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 22:21:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2019-10-13 22:21:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmem_cache_alloc_16 [2019-10-13 22:21:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmalloc_12 [2019-10-13 22:21:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 22:21:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2019-10-13 22:21:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 22:21:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 22:21:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:21:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-10-13 22:21:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 22:21:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 22:21:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 22:21:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:21:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 22:21:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 22:21:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 22:21:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 22:21:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 22:21:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 22:21:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 22:21:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 22:21:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 22:21:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_tty_operations_3 [2019-10-13 22:21:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_pci_driver_5 [2019-10-13 22:21:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2019-10-13 22:21:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2019-10-13 22:21:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2019-10-13 22:21:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2019-10-13 22:21:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2019-10-13 22:21:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_port_operations_2 [2019-10-13 22:21:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2019-10-13 22:21:08,375 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2019-10-13 22:21:08,375 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-10-13 22:21:08,375 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-13 22:21:08,375 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-13 22:21:08,375 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-13 22:21:08,375 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-10-13 22:21:08,376 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-13 22:21:08,376 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-13 22:21:08,376 INFO L130 BoogieDeclarations]: Found specification of procedure __tty_alloc_driver [2019-10-13 22:21:08,376 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2019-10-13 22:21:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure tty_set_operations [2019-10-13 22:21:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tty_driver [2019-10-13 22:21:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2019-10-13 22:21:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure flag_buf_ptr [2019-10-13 22:21:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:21:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2019-10-13 22:21:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_driver [2019-10-13 22:21:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2019-10-13 22:21:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_device [2019-10-13 22:21:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2019-10-13 22:21:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure do_SAK [2019-10-13 22:21:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2019-10-13 22:21:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_init [2019-10-13 22:21:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_register_device [2019-10-13 22:21:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_alloc_xmit_buf [2019-10-13 22:21:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_free_xmit_buf [2019-10-13 22:21:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_destroy [2019-10-13 22:21:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_cts_enabled [2019-10-13 22:21:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2019-10-13 22:21:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_hangup [2019-10-13 22:21:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_close [2019-10-13 22:21:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_open [2019-10-13 22:21:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_flags [2019-10-13 22:21:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure tty_prepare_flip_string [2019-10-13 22:21:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2019-10-13 22:21:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_char [2019-10-13 22:21:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:21:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:21:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 22:21:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:21:08,382 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2019-10-13 22:21:08,382 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2019-10-13 22:21:08,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_20 [2019-10-13 22:21:08,382 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2019-10-13 22:21:08,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_21 [2019-10-13 22:21:08,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_22 [2019-10-13 22:21:08,382 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-13 22:21:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2019-10-13 22:21:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 22:21:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 22:21:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 22:21:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-13 22:21:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-10-13 22:21:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-13 22:21:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2019-10-13 22:21:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2019-10-13 22:21:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_region [2019-10-13 22:21:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2019-10-13 22:21:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_register_driver [2019-10-13 22:21:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2019-10-13 22:21:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2019-10-13 22:21:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2019-10-13 22:21:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_probe [2019-10-13 22:21:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_remove [2019-10-13 22:21:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_tx [2019-10-13 22:21:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_start [2019-10-13 22:21:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure WaitTillCardIsFree [2019-10-13 22:21:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure lock_card [2019-10-13 22:21:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_card [2019-10-13 22:21:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure raise_dtr [2019-10-13 22:21:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure drop_dtr [2019-10-13 22:21:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure raise_rts [2019-10-13 22:21:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure drop_rts [2019-10-13 22:21:08,388 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_dtr_rts [2019-10-13 22:21:08,388 INFO L130 BoogieDeclarations]: Found specification of procedure drop_dtr_rts [2019-10-13 22:21:08,388 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_interrupt [2019-10-13 22:21:08,388 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_config_port [2019-10-13 22:21:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_setup_board [2019-10-13 22:21:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_activate [2019-10-13 22:21:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_carrier_raised [2019-10-13 22:21:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_find_port [2019-10-13 22:21:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_open [2019-10-13 22:21:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_shutdown_port [2019-10-13 22:21:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_flush_buffer [2019-10-13 22:21:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_shutdown [2019-10-13 22:21:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_close [2019-10-13 22:21:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 22:21:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_write [2019-10-13 22:21:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 22:21:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_put_char [2019-10-13 22:21:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_flush_chars [2019-10-13 22:21:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_write_room [2019-10-13 22:21:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_chars_in_buffer [2019-10-13 22:21:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_send_break [2019-10-13 22:21:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_tiocmget [2019-10-13 22:21:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_tiocmset [2019-10-13 22:21:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_set_serial_info [2019-10-13 22:21:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_get_serial_info [2019-10-13 22:21:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 22:21:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_ioctl [2019-10-13 22:21:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_set_termios [2019-10-13 22:21:08,393 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_throttle [2019-10-13 22:21:08,393 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_unthrottle [2019-10-13 22:21:08,393 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_stop [2019-10-13 22:21:08,393 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_hangup [2019-10-13 22:21:08,393 INFO L130 BoogieDeclarations]: Found specification of procedure reset_card [2019-10-13 22:21:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure load_firmware [2019-10-13 22:21:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_init [2019-10-13 22:21:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_exit [2019-10-13 22:21:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_setup_3 [2019-10-13 22:21:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destruct_2 [2019-10-13 22:21:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_3 [2019-10-13 22:21:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 22:21:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 22:21:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2019-10-13 22:21:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:21:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2019-10-13 22:21:08,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-13 22:21:08,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2019-10-13 22:21:08,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2019-10-13 22:21:08,396 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 22:21:08,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-13 22:21:08,397 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 22:21:08,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:21:08,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 22:21:08,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 22:21:08,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:21:08,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 22:21:08,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 22:21:08,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 22:21:08,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 22:21:10,033 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 22:21:31,514 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:21:31,515 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 22:21:31,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:21:31 BoogieIcfgContainer [2019-10-13 22:21:31,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:21:31,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:21:31,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:21:31,522 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:21:31,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:21:04" (1/3) ... [2019-10-13 22:21:31,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1d2aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:21:31, skipping insertion in model container [2019-10-13 22:21:31,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:21:07" (2/3) ... [2019-10-13 22:21:31,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1d2aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:21:31, skipping insertion in model container [2019-10-13 22:21:31,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:21:31" (3/3) ... [2019-10-13 22:21:31,526 INFO L109 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i [2019-10-13 22:21:31,535 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:21:31,545 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:21:31,557 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:21:31,587 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:21:31,587 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:21:31,587 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:21:31,587 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:21:31,587 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:21:31,588 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:21:31,588 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:21:31,588 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:21:31,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states. [2019-10-13 22:21:31,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-13 22:21:31,672 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:21:31,673 INFO L380 BasicCegarLoop]: trace histogram [7, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:21:31,676 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:21:31,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:21:31,682 INFO L82 PathProgramCache]: Analyzing trace with hash -561001248, now seen corresponding path program 1 times [2019-10-13 22:21:31,692 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:21:31,693 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881890385] [2019-10-13 22:21:31,693 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:21:31,694 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:21:31,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:21:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:21:32,627 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2019-10-13 22:21:32,627 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881890385] [2019-10-13 22:21:32,628 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:21:32,629 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:21:32,630 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129379796] [2019-10-13 22:21:32,638 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:21:32,639 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:21:32,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:21:32,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:21:32,658 INFO L87 Difference]: Start difference. First operand 1396 states. Second operand 3 states. [2019-10-13 22:21:33,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:21:33,131 INFO L93 Difference]: Finished difference Result 3804 states and 5384 transitions. [2019-10-13 22:21:33,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:21:33,133 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2019-10-13 22:21:33,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:21:33,178 INFO L225 Difference]: With dead ends: 3804 [2019-10-13 22:21:33,178 INFO L226 Difference]: Without dead ends: 2383 [2019-10-13 22:21:33,194 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 22:21:33,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2019-10-13 22:21:33,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2383. [2019-10-13 22:21:33,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2383 states. [2019-10-13 22:21:33,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2383 states to 2383 states and 3322 transitions. [2019-10-13 22:21:33,540 INFO L78 Accepts]: Start accepts. Automaton has 2383 states and 3322 transitions. Word has length 212 [2019-10-13 22:21:33,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:21:33,541 INFO L462 AbstractCegarLoop]: Abstraction has 2383 states and 3322 transitions. [2019-10-13 22:21:33,541 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:21:33,542 INFO L276 IsEmpty]: Start isEmpty. Operand 2383 states and 3322 transitions. [2019-10-13 22:21:33,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2019-10-13 22:21:33,561 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:21:33,561 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:21:33,562 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:21:33,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:21:33,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1128251851, now seen corresponding path program 1 times [2019-10-13 22:21:33,563 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:21:33,563 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3756723] [2019-10-13 22:21:33,563 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:21:33,563 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:21:33,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:21:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:21:33,957 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2019-10-13 22:21:33,957 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3756723] [2019-10-13 22:21:33,957 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:21:33,958 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:21:33,958 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67291795] [2019-10-13 22:21:33,960 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:21:33,961 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:21:33,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:21:33,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:21:33,961 INFO L87 Difference]: Start difference. First operand 2383 states and 3322 transitions. Second operand 3 states. [2019-10-13 22:21:34,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:21:34,135 INFO L93 Difference]: Finished difference Result 4753 states and 6637 transitions. [2019-10-13 22:21:34,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:21:34,137 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 286 [2019-10-13 22:21:34,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:21:34,157 INFO L225 Difference]: With dead ends: 4753 [2019-10-13 22:21:34,157 INFO L226 Difference]: Without dead ends: 2395 [2019-10-13 22:21:34,170 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 22:21:34,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2395 states. [2019-10-13 22:21:34,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2395 to 2385. [2019-10-13 22:21:34,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2385 states. [2019-10-13 22:21:34,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 3324 transitions. [2019-10-13 22:21:34,326 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 3324 transitions. Word has length 286 [2019-10-13 22:21:34,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:21:34,327 INFO L462 AbstractCegarLoop]: Abstraction has 2385 states and 3324 transitions. [2019-10-13 22:21:34,327 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:21:34,327 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 3324 transitions. [2019-10-13 22:21:34,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2019-10-13 22:21:34,352 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:21:34,353 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:21:34,353 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:21:34,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:21:34,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1343165088, now seen corresponding path program 1 times [2019-10-13 22:21:34,354 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:21:34,355 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295552912] [2019-10-13 22:21:34,355 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:21:34,355 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:21:34,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:21:34,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:21:34,971 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2019-10-13 22:21:34,971 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295552912] [2019-10-13 22:21:34,971 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:21:34,972 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:21:34,972 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212987657] [2019-10-13 22:21:34,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:21:34,973 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:21:34,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:21:34,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:21:34,974 INFO L87 Difference]: Start difference. First operand 2385 states and 3324 transitions. Second operand 3 states. [2019-10-13 22:21:35,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:21:35,124 INFO L93 Difference]: Finished difference Result 4747 states and 6625 transitions. [2019-10-13 22:21:35,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:21:35,125 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 296 [2019-10-13 22:21:35,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:21:35,152 INFO L225 Difference]: With dead ends: 4747 [2019-10-13 22:21:35,152 INFO L226 Difference]: Without dead ends: 2387 [2019-10-13 22:21:35,165 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 22:21:35,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2387 states. [2019-10-13 22:21:35,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2387 to 2387. [2019-10-13 22:21:35,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2387 states. [2019-10-13 22:21:35,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2387 states to 2387 states and 3326 transitions. [2019-10-13 22:21:35,379 INFO L78 Accepts]: Start accepts. Automaton has 2387 states and 3326 transitions. Word has length 296 [2019-10-13 22:21:35,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:21:35,379 INFO L462 AbstractCegarLoop]: Abstraction has 2387 states and 3326 transitions. [2019-10-13 22:21:35,379 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:21:35,380 INFO L276 IsEmpty]: Start isEmpty. Operand 2387 states and 3326 transitions. [2019-10-13 22:21:35,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2019-10-13 22:21:35,396 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:21:35,397 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:21:35,397 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:21:35,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:21:35,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1509105123, now seen corresponding path program 1 times [2019-10-13 22:21:35,398 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:21:35,398 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071206802] [2019-10-13 22:21:35,398 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:21:35,399 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:21:35,399 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:21:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:21:36,067 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2019-10-13 22:21:36,068 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071206802] [2019-10-13 22:21:36,068 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:21:36,068 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:21:36,069 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809336621] [2019-10-13 22:21:36,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:21:36,070 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:21:36,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:21:36,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:21:36,070 INFO L87 Difference]: Start difference. First operand 2387 states and 3326 transitions. Second operand 3 states. [2019-10-13 22:21:36,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:21:36,227 INFO L93 Difference]: Finished difference Result 3960 states and 5613 transitions. [2019-10-13 22:21:36,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:21:36,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 297 [2019-10-13 22:21:36,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:21:36,263 INFO L225 Difference]: With dead ends: 3960 [2019-10-13 22:21:36,264 INFO L226 Difference]: Without dead ends: 3957 [2019-10-13 22:21:36,267 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 22:21:36,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3957 states. [2019-10-13 22:21:36,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3957 to 3867. [2019-10-13 22:21:36,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3867 states. [2019-10-13 22:21:36,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3867 states to 3867 states and 5454 transitions. [2019-10-13 22:21:36,505 INFO L78 Accepts]: Start accepts. Automaton has 3867 states and 5454 transitions. Word has length 297 [2019-10-13 22:21:36,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:21:36,507 INFO L462 AbstractCegarLoop]: Abstraction has 3867 states and 5454 transitions. [2019-10-13 22:21:36,507 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:21:36,508 INFO L276 IsEmpty]: Start isEmpty. Operand 3867 states and 5454 transitions. [2019-10-13 22:21:36,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2019-10-13 22:21:36,542 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:21:36,543 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:21:36,543 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:21:36,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:21:36,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1974417243, now seen corresponding path program 1 times [2019-10-13 22:21:36,544 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:21:36,544 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936144625] [2019-10-13 22:21:36,544 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:21:36,544 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:21:36,545 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:21:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:21:37,114 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2019-10-13 22:21:37,115 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936144625] [2019-10-13 22:21:37,115 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:21:37,115 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:21:37,116 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036342356] [2019-10-13 22:21:37,117 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:21:37,117 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:21:37,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:21:37,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:21:37,118 INFO L87 Difference]: Start difference. First operand 3867 states and 5454 transitions. Second operand 3 states. [2019-10-13 22:21:37,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:21:37,705 INFO L93 Difference]: Finished difference Result 11173 states and 15748 transitions. [2019-10-13 22:21:37,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:21:37,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 330 [2019-10-13 22:21:37,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:21:37,785 INFO L225 Difference]: With dead ends: 11173 [2019-10-13 22:21:37,785 INFO L226 Difference]: Without dead ends: 7331 [2019-10-13 22:21:37,812 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 22:21:37,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7331 states. [2019-10-13 22:21:38,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7331 to 7326. [2019-10-13 22:21:38,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7326 states. [2019-10-13 22:21:38,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7326 states to 7326 states and 10315 transitions. [2019-10-13 22:21:38,212 INFO L78 Accepts]: Start accepts. Automaton has 7326 states and 10315 transitions. Word has length 330 [2019-10-13 22:21:38,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:21:38,213 INFO L462 AbstractCegarLoop]: Abstraction has 7326 states and 10315 transitions. [2019-10-13 22:21:38,213 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:21:38,213 INFO L276 IsEmpty]: Start isEmpty. Operand 7326 states and 10315 transitions. [2019-10-13 22:21:38,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2019-10-13 22:21:38,276 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:21:38,277 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:21:38,277 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:21:38,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:21:38,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1698251589, now seen corresponding path program 2 times [2019-10-13 22:21:38,278 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:21:38,278 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646838130] [2019-10-13 22:21:38,278 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:21:38,278 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:21:38,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:21:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:21:38,850 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2019-10-13 22:21:38,850 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646838130] [2019-10-13 22:21:38,851 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:21:38,851 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:21:38,851 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437056401] [2019-10-13 22:21:38,852 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:21:38,853 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:21:38,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:21:38,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:21:38,853 INFO L87 Difference]: Start difference. First operand 7326 states and 10315 transitions. Second operand 3 states.