java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-linux-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 20:35:01,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 20:35:01,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 20:35:01,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 20:35:01,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 20:35:01,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 20:35:01,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 20:35:01,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 20:35:01,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 20:35:01,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 20:35:01,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 20:35:01,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 20:35:01,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 20:35:01,371 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 20:35:01,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 20:35:01,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 20:35:01,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 20:35:01,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 20:35:01,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 20:35:01,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 20:35:01,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 20:35:01,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 20:35:01,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 20:35:01,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 20:35:01,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 20:35:01,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 20:35:01,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 20:35:01,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 20:35:01,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 20:35:01,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 20:35:01,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 20:35:01,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 20:35:01,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 20:35:01,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 20:35:01,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 20:35:01,398 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 20:35:01,399 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 20:35:01,399 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 20:35:01,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 20:35:01,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 20:35:01,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 20:35:01,402 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 20:35:01,439 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 20:35:01,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 20:35:01,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 20:35:01,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 20:35:01,441 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 20:35:01,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 20:35:01,442 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 20:35:01,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 20:35:01,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 20:35:01,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 20:35:01,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 20:35:01,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 20:35:01,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 20:35:01,447 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 20:35:01,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 20:35:01,447 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 20:35:01,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 20:35:01,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 20:35:01,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 20:35:01,448 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 20:35:01,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 20:35:01,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:35:01,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 20:35:01,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 20:35:01,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 20:35:01,452 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 20:35:01,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 20:35:01,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 20:35:01,453 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 20:35:01,764 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 20:35:01,778 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 20:35:01,785 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 20:35:01,786 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 20:35:01,787 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 20:35:01,790 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i [2019-10-13 20:35:01,869 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/038254030/b47d8f287b534a199f58be463838e1f0/FLAG26057beb6 [2019-10-13 20:35:02,648 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 20:35:02,648 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i [2019-10-13 20:35:02,685 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/038254030/b47d8f287b534a199f58be463838e1f0/FLAG26057beb6 [2019-10-13 20:35:03,184 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/038254030/b47d8f287b534a199f58be463838e1f0 [2019-10-13 20:35:03,193 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 20:35:03,194 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 20:35:03,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 20:35:03,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 20:35:03,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 20:35:03,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:35:03" (1/1) ... [2019-10-13 20:35:03,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@237769dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:35:03, skipping insertion in model container [2019-10-13 20:35:03,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:35:03" (1/1) ... [2019-10-13 20:35:03,211 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 20:35:03,334 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 20:35:03,991 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 20:35:03,992 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 20:35:05,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:35:05,543 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 20:35:05,690 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 20:35:05,691 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 20:35:05,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:35:06,257 INFO L192 MainTranslator]: Completed translation [2019-10-13 20:35:06,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:35:06 WrapperNode [2019-10-13 20:35:06,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 20:35:06,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 20:35:06,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 20:35:06,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 20:35:06,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:35:06" (1/1) ... [2019-10-13 20:35:06,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:35:06" (1/1) ... [2019-10-13 20:35:06,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:35:06" (1/1) ... [2019-10-13 20:35:06,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:35:06" (1/1) ... [2019-10-13 20:35:06,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:35:06" (1/1) ... [2019-10-13 20:35:06,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:35:06" (1/1) ... [2019-10-13 20:35:06,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:35:06" (1/1) ... [2019-10-13 20:35:06,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 20:35:06,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 20:35:06,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 20:35:06,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 20:35:06,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:35:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:35:06,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 20:35:06,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 20:35:06,761 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-13 20:35:06,762 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2019-10-13 20:35:06,762 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 20:35:06,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_1 [2019-10-13 20:35:06,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_5 [2019-10-13 20:35:06,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_8 [2019-10-13 20:35:06,763 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2019-10-13 20:35:06,763 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2019-10-13 20:35:06,763 INFO L138 BoogieDeclarations]: Found implementation of procedure outsw [2019-10-13 20:35:06,763 INFO L138 BoogieDeclarations]: Found implementation of procedure insw [2019-10-13 20:35:06,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 20:35:06,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmalloc_12 [2019-10-13 20:35:06,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 20:35:06,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 20:35:06,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 20:35:06,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 20:35:06,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 20:35:06,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 20:35:06,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 20:35:06,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 20:35:06,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 20:35:06,766 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-13 20:35:06,767 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-13 20:35:06,767 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tty_driver [2019-10-13 20:35:06,767 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2019-10-13 20:35:06,767 INFO L138 BoogieDeclarations]: Found implementation of procedure flag_buf_ptr [2019-10-13 20:35:06,767 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_cts_enabled [2019-10-13 20:35:06,767 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_char [2019-10-13 20:35:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2019-10-13 20:35:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 20:35:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 20:35:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2019-10-13 20:35:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2019-10-13 20:35:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure WaitTillCardIsFree [2019-10-13 20:35:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_card [2019-10-13 20:35:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_card [2019-10-13 20:35:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure raise_dtr [2019-10-13 20:35:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_dtr [2019-10-13 20:35:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure raise_rts [2019-10-13 20:35:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_rts [2019-10-13 20:35:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_dtr_rts [2019-10-13 20:35:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_dtr_rts [2019-10-13 20:35:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_tx [2019-10-13 20:35:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_interrupt [2019-10-13 20:35:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_config_port [2019-10-13 20:35:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_setup_board [2019-10-13 20:35:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_activate [2019-10-13 20:35:06,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_carrier_raised [2019-10-13 20:35:06,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_find_port [2019-10-13 20:35:06,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_open [2019-10-13 20:35:06,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_shutdown_port [2019-10-13 20:35:06,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_flush_buffer [2019-10-13 20:35:06,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_shutdown [2019-10-13 20:35:06,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_close [2019-10-13 20:35:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_write [2019-10-13 20:35:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_put_char [2019-10-13 20:35:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_flush_chars [2019-10-13 20:35:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_write_room [2019-10-13 20:35:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_chars_in_buffer [2019-10-13 20:35:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_send_break [2019-10-13 20:35:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_tiocmget [2019-10-13 20:35:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_tiocmset [2019-10-13 20:35:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_set_serial_info [2019-10-13 20:35:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_get_serial_info [2019-10-13 20:35:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_ioctl [2019-10-13 20:35:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_set_termios [2019-10-13 20:35:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_throttle [2019-10-13 20:35:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_unthrottle [2019-10-13 20:35:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_stop [2019-10-13 20:35:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_start [2019-10-13 20:35:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_hangup [2019-10-13 20:35:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_card [2019-10-13 20:35:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure load_firmware [2019-10-13 20:35:06,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_probe [2019-10-13 20:35:06,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_remove [2019-10-13 20:35:06,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_init [2019-10-13 20:35:06,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_exit [2019-10-13 20:35:06,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_tty_operations_3 [2019-10-13 20:35:06,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_pci_driver_5 [2019-10-13 20:35:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2019-10-13 20:35:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2019-10-13 20:35:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2019-10-13 20:35:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2019-10-13 20:35:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2019-10-13 20:35:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_port_operations_2 [2019-10-13 20:35:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 20:35:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-13 20:35:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-13 20:35:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-13 20:35:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 20:35:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmem_cache_alloc_16 [2019-10-13 20:35:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_20 [2019-10-13 20:35:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_21 [2019-10-13 20:35:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_22 [2019-10-13 20:35:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2019-10-13 20:35:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-13 20:35:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2019-10-13 20:35:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2019-10-13 20:35:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2019-10-13 20:35:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2019-10-13 20:35:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-13 20:35:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-13 20:35:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-10-13 20:35:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-10-13 20:35:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2019-10-13 20:35:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_register_driver [2019-10-13 20:35:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 20:35:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __tty_alloc_driver [2019-10-13 20:35:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-13 20:35:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-13 20:35:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-13 20:35:06,780 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-13 20:35:06,780 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-13 20:35:06,780 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-13 20:35:06,780 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-13 20:35:06,780 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-10-13 20:35:06,780 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-10-13 20:35:06,780 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-13 20:35:06,781 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-10-13 20:35:06,781 INFO L138 BoogieDeclarations]: Found implementation of procedure do_SAK [2019-10-13 20:35:06,781 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2019-10-13 20:35:06,781 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2019-10-13 20:35:06,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 20:35:06,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destruct_2 [2019-10-13 20:35:06,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_3 [2019-10-13 20:35:06,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 20:35:06,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2019-10-13 20:35:06,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_setup_3 [2019-10-13 20:35:06,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2019-10-13 20:35:06,782 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-13 20:35:06,783 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-10-13 20:35:06,783 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2019-10-13 20:35:06,783 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2019-10-13 20:35:06,783 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-13 20:35:06,783 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 20:35:06,783 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2019-10-13 20:35:06,784 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2019-10-13 20:35:06,784 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2019-10-13 20:35:06,784 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_region [2019-10-13 20:35:06,784 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2019-10-13 20:35:06,784 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 20:35:06,784 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2019-10-13 20:35:06,784 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2019-10-13 20:35:06,785 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2019-10-13 20:35:06,785 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2019-10-13 20:35:06,785 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2019-10-13 20:35:06,785 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2019-10-13 20:35:06,785 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_flags [2019-10-13 20:35:06,785 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2019-10-13 20:35:06,785 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_alloc_xmit_buf [2019-10-13 20:35:06,786 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_close [2019-10-13 20:35:06,786 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_destroy [2019-10-13 20:35:06,786 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_free_xmit_buf [2019-10-13 20:35:06,786 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_hangup [2019-10-13 20:35:06,786 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_init [2019-10-13 20:35:06,786 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_open [2019-10-13 20:35:06,787 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_register_device [2019-10-13 20:35:06,787 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2019-10-13 20:35:06,787 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_prepare_flip_string [2019-10-13 20:35:06,787 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_driver [2019-10-13 20:35:06,787 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_set_operations [2019-10-13 20:35:06,787 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_device [2019-10-13 20:35:06,787 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2019-10-13 20:35:06,788 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2019-10-13 20:35:06,788 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 20:35:06,788 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 20:35:06,788 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 20:35:06,788 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 20:35:06,788 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 20:35:06,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 20:35:06,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 20:35:06,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2019-10-13 20:35:06,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2019-10-13 20:35:06,789 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 20:35:06,789 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2019-10-13 20:35:06,789 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-10-13 20:35:06,790 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-13 20:35:06,790 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-13 20:35:06,790 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 20:35:06,790 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-13 20:35:06,790 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2019-10-13 20:35:06,790 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 20:35:06,790 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-13 20:35:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-13 20:35:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-13 20:35:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 20:35:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_1 [2019-10-13 20:35:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-13 20:35:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_5 [2019-10-13 20:35:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-13 20:35:06,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_8 [2019-10-13 20:35:06,792 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-13 20:35:06,792 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-13 20:35:06,792 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-13 20:35:06,792 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 20:35:06,792 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2019-10-13 20:35:06,792 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-10-13 20:35:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-10-13 20:35:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2019-10-13 20:35:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2019-10-13 20:35:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure outsw [2019-10-13 20:35:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure insw [2019-10-13 20:35:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 20:35:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 20:35:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 20:35:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2019-10-13 20:35:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmem_cache_alloc_16 [2019-10-13 20:35:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmalloc_12 [2019-10-13 20:35:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 20:35:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2019-10-13 20:35:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 20:35:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 20:35:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 20:35:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-10-13 20:35:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 20:35:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 20:35:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 20:35:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 20:35:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 20:35:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 20:35:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 20:35:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 20:35:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 20:35:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 20:35:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 20:35:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 20:35:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 20:35:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_tty_operations_3 [2019-10-13 20:35:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_pci_driver_5 [2019-10-13 20:35:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2019-10-13 20:35:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2019-10-13 20:35:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2019-10-13 20:35:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2019-10-13 20:35:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2019-10-13 20:35:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_port_operations_2 [2019-10-13 20:35:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2019-10-13 20:35:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2019-10-13 20:35:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-10-13 20:35:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-13 20:35:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-13 20:35:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-13 20:35:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-10-13 20:35:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-13 20:35:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-13 20:35:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure __tty_alloc_driver [2019-10-13 20:35:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2019-10-13 20:35:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure tty_set_operations [2019-10-13 20:35:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tty_driver [2019-10-13 20:35:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2019-10-13 20:35:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure flag_buf_ptr [2019-10-13 20:35:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 20:35:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2019-10-13 20:35:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_driver [2019-10-13 20:35:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2019-10-13 20:35:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_device [2019-10-13 20:35:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2019-10-13 20:35:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure do_SAK [2019-10-13 20:35:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2019-10-13 20:35:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_init [2019-10-13 20:35:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_register_device [2019-10-13 20:35:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_alloc_xmit_buf [2019-10-13 20:35:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_free_xmit_buf [2019-10-13 20:35:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_destroy [2019-10-13 20:35:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_cts_enabled [2019-10-13 20:35:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2019-10-13 20:35:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_hangup [2019-10-13 20:35:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_close [2019-10-13 20:35:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_open [2019-10-13 20:35:06,803 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_flags [2019-10-13 20:35:06,803 INFO L130 BoogieDeclarations]: Found specification of procedure tty_prepare_flip_string [2019-10-13 20:35:06,803 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2019-10-13 20:35:06,803 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_char [2019-10-13 20:35:06,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 20:35:06,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 20:35:06,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 20:35:06,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 20:35:06,804 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2019-10-13 20:35:06,804 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2019-10-13 20:35:06,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_20 [2019-10-13 20:35:06,804 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2019-10-13 20:35:06,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_21 [2019-10-13 20:35:06,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_22 [2019-10-13 20:35:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-13 20:35:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2019-10-13 20:35:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 20:35:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 20:35:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 20:35:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-13 20:35:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-10-13 20:35:06,806 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-13 20:35:06,806 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2019-10-13 20:35:06,806 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2019-10-13 20:35:06,806 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_region [2019-10-13 20:35:06,806 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2019-10-13 20:35:06,806 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_register_driver [2019-10-13 20:35:06,806 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2019-10-13 20:35:06,807 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2019-10-13 20:35:06,807 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2019-10-13 20:35:06,807 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_probe [2019-10-13 20:35:06,807 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_remove [2019-10-13 20:35:06,807 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_tx [2019-10-13 20:35:06,807 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_start [2019-10-13 20:35:06,808 INFO L130 BoogieDeclarations]: Found specification of procedure WaitTillCardIsFree [2019-10-13 20:35:06,808 INFO L130 BoogieDeclarations]: Found specification of procedure lock_card [2019-10-13 20:35:06,808 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_card [2019-10-13 20:35:06,808 INFO L130 BoogieDeclarations]: Found specification of procedure raise_dtr [2019-10-13 20:35:06,808 INFO L130 BoogieDeclarations]: Found specification of procedure drop_dtr [2019-10-13 20:35:06,808 INFO L130 BoogieDeclarations]: Found specification of procedure raise_rts [2019-10-13 20:35:06,808 INFO L130 BoogieDeclarations]: Found specification of procedure drop_rts [2019-10-13 20:35:06,808 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_dtr_rts [2019-10-13 20:35:06,809 INFO L130 BoogieDeclarations]: Found specification of procedure drop_dtr_rts [2019-10-13 20:35:06,809 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_interrupt [2019-10-13 20:35:06,809 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_config_port [2019-10-13 20:35:06,809 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_setup_board [2019-10-13 20:35:06,809 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_activate [2019-10-13 20:35:06,809 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_carrier_raised [2019-10-13 20:35:06,809 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_find_port [2019-10-13 20:35:06,809 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_open [2019-10-13 20:35:06,810 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_shutdown_port [2019-10-13 20:35:06,810 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_flush_buffer [2019-10-13 20:35:06,810 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_shutdown [2019-10-13 20:35:06,810 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_close [2019-10-13 20:35:06,810 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 20:35:06,810 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_write [2019-10-13 20:35:06,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 20:35:06,810 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_put_char [2019-10-13 20:35:06,811 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_flush_chars [2019-10-13 20:35:06,811 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_write_room [2019-10-13 20:35:06,811 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_chars_in_buffer [2019-10-13 20:35:06,811 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_send_break [2019-10-13 20:35:06,811 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_tiocmget [2019-10-13 20:35:06,811 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_tiocmset [2019-10-13 20:35:06,811 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_set_serial_info [2019-10-13 20:35:06,811 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_get_serial_info [2019-10-13 20:35:06,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 20:35:06,812 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_ioctl [2019-10-13 20:35:06,812 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_set_termios [2019-10-13 20:35:06,812 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_throttle [2019-10-13 20:35:06,812 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_unthrottle [2019-10-13 20:35:06,812 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_stop [2019-10-13 20:35:06,812 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_hangup [2019-10-13 20:35:06,813 INFO L130 BoogieDeclarations]: Found specification of procedure reset_card [2019-10-13 20:35:06,813 INFO L130 BoogieDeclarations]: Found specification of procedure load_firmware [2019-10-13 20:35:06,813 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_init [2019-10-13 20:35:06,813 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_exit [2019-10-13 20:35:06,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_setup_3 [2019-10-13 20:35:06,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destruct_2 [2019-10-13 20:35:06,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_3 [2019-10-13 20:35:06,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 20:35:06,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 20:35:06,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2019-10-13 20:35:06,814 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 20:35:06,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2019-10-13 20:35:06,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-13 20:35:06,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2019-10-13 20:35:06,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2019-10-13 20:35:06,815 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 20:35:06,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-13 20:35:06,815 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 20:35:06,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 20:35:06,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 20:35:06,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 20:35:06,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 20:35:06,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 20:35:06,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 20:35:06,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 20:35:06,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 20:35:08,521 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 20:35:17,628 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 20:35:17,629 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 20:35:17,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:35:17 BoogieIcfgContainer [2019-10-13 20:35:17,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 20:35:17,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 20:35:17,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 20:35:17,637 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 20:35:17,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:35:03" (1/3) ... [2019-10-13 20:35:17,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@174617ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:35:17, skipping insertion in model container [2019-10-13 20:35:17,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:35:06" (2/3) ... [2019-10-13 20:35:17,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@174617ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:35:17, skipping insertion in model container [2019-10-13 20:35:17,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:35:17" (3/3) ... [2019-10-13 20:35:17,643 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 20:35:17,652 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 20:35:17,665 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 20:35:17,676 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 20:35:17,721 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 20:35:17,721 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 20:35:17,721 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 20:35:17,721 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 20:35:17,721 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 20:35:17,722 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 20:35:17,722 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 20:35:17,722 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 20:35:17,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1655 states. [2019-10-13 20:35:17,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2019-10-13 20:35:17,838 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:35:17,840 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 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] [2019-10-13 20:35:17,842 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:35:17,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:35:17,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1462961558, now seen corresponding path program 1 times [2019-10-13 20:35:17,865 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:35:17,866 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978556438] [2019-10-13 20:35:17,866 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:17,867 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:17,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:35:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:35:18,895 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2019-10-13 20:35:18,895 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978556438] [2019-10-13 20:35:18,896 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:35:18,896 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:35:18,897 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433579520] [2019-10-13 20:35:18,903 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:35:18,906 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:35:18,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:35:18,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:35:18,924 INFO L87 Difference]: Start difference. First operand 1655 states. Second operand 3 states. [2019-10-13 20:35:19,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:35:19,345 INFO L93 Difference]: Finished difference Result 4503 states and 6351 transitions. [2019-10-13 20:35:19,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:35:19,347 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 256 [2019-10-13 20:35:19,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:35:19,380 INFO L225 Difference]: With dead ends: 4503 [2019-10-13 20:35:19,381 INFO L226 Difference]: Without dead ends: 2822 [2019-10-13 20:35:19,394 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:35:19,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2822 states. [2019-10-13 20:35:19,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2822 to 2822. [2019-10-13 20:35:19,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2822 states. [2019-10-13 20:35:19,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2822 states to 2822 states and 3933 transitions. [2019-10-13 20:35:19,683 INFO L78 Accepts]: Start accepts. Automaton has 2822 states and 3933 transitions. Word has length 256 [2019-10-13 20:35:19,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:35:19,684 INFO L462 AbstractCegarLoop]: Abstraction has 2822 states and 3933 transitions. [2019-10-13 20:35:19,684 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:35:19,684 INFO L276 IsEmpty]: Start isEmpty. Operand 2822 states and 3933 transitions. [2019-10-13 20:35:19,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2019-10-13 20:35:19,707 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:35:19,708 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:35:19,708 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:35:19,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:35:19,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1009079095, now seen corresponding path program 1 times [2019-10-13 20:35:19,709 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:35:19,709 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363125404] [2019-10-13 20:35:19,709 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:19,709 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:19,710 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:35:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:35:20,212 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2019-10-13 20:35:20,213 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363125404] [2019-10-13 20:35:20,213 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:35:20,213 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:35:20,214 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533553368] [2019-10-13 20:35:20,218 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:35:20,218 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:35:20,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:35:20,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:35:20,219 INFO L87 Difference]: Start difference. First operand 2822 states and 3933 transitions. Second operand 3 states. [2019-10-13 20:35:20,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:35:20,414 INFO L93 Difference]: Finished difference Result 5633 states and 7861 transitions. [2019-10-13 20:35:20,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:35:20,416 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 339 [2019-10-13 20:35:20,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:35:20,439 INFO L225 Difference]: With dead ends: 5633 [2019-10-13 20:35:20,440 INFO L226 Difference]: Without dead ends: 2838 [2019-10-13 20:35:20,455 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:35:20,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2838 states. [2019-10-13 20:35:20,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2838 to 2824. [2019-10-13 20:35:20,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2824 states. [2019-10-13 20:35:20,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2824 states to 2824 states and 3935 transitions. [2019-10-13 20:35:20,599 INFO L78 Accepts]: Start accepts. Automaton has 2824 states and 3935 transitions. Word has length 339 [2019-10-13 20:35:20,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:35:20,600 INFO L462 AbstractCegarLoop]: Abstraction has 2824 states and 3935 transitions. [2019-10-13 20:35:20,600 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:35:20,600 INFO L276 IsEmpty]: Start isEmpty. Operand 2824 states and 3935 transitions. [2019-10-13 20:35:20,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2019-10-13 20:35:20,622 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:35:20,622 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:35:20,623 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:35:20,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:35:20,623 INFO L82 PathProgramCache]: Analyzing trace with hash 842186655, now seen corresponding path program 1 times [2019-10-13 20:35:20,624 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:35:20,624 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400679228] [2019-10-13 20:35:20,624 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:20,624 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:20,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:35:20,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:35:20,985 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2019-10-13 20:35:20,986 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400679228] [2019-10-13 20:35:20,986 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:35:20,986 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:35:20,987 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797547478] [2019-10-13 20:35:20,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:35:20,988 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:35:20,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:35:20,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:35:20,988 INFO L87 Difference]: Start difference. First operand 2824 states and 3935 transitions. Second operand 3 states. [2019-10-13 20:35:21,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:35:21,126 INFO L93 Difference]: Finished difference Result 5625 states and 7847 transitions. [2019-10-13 20:35:21,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:35:21,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 352 [2019-10-13 20:35:21,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:35:21,153 INFO L225 Difference]: With dead ends: 5625 [2019-10-13 20:35:21,153 INFO L226 Difference]: Without dead ends: 2828 [2019-10-13 20:35:21,165 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 20:35:21,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2019-10-13 20:35:21,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 2826. [2019-10-13 20:35:21,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2826 states. [2019-10-13 20:35:21,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2826 states to 2826 states and 3937 transitions. [2019-10-13 20:35:21,288 INFO L78 Accepts]: Start accepts. Automaton has 2826 states and 3937 transitions. Word has length 352 [2019-10-13 20:35:21,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:35:21,289 INFO L462 AbstractCegarLoop]: Abstraction has 2826 states and 3937 transitions. [2019-10-13 20:35:21,289 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:35:21,289 INFO L276 IsEmpty]: Start isEmpty. Operand 2826 states and 3937 transitions. [2019-10-13 20:35:21,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2019-10-13 20:35:21,314 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:35:21,315 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:35:21,315 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:35:21,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:35:21,316 INFO L82 PathProgramCache]: Analyzing trace with hash 542789211, now seen corresponding path program 1 times [2019-10-13 20:35:21,317 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:35:21,317 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624697976] [2019-10-13 20:35:21,317 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:21,317 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:21,318 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:35:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:35:21,915 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2019-10-13 20:35:21,917 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624697976] [2019-10-13 20:35:21,917 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309716500] [2019-10-13 20:35:21,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 20:35:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:35:22,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 4479 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-13 20:35:23,007 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 20:35:23,221 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2019-10-13 20:35:23,222 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 20:35:23,555 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2019-10-13 20:35:23,555 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 20:35:23,556 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 3 [2019-10-13 20:35:23,556 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103859781] [2019-10-13 20:35:23,557 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:35:23,557 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:35:23,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:35:23,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:35:23,558 INFO L87 Difference]: Start difference. First operand 2826 states and 3937 transitions. Second operand 3 states. [2019-10-13 20:35:23,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:35:23,694 INFO L93 Difference]: Finished difference Result 5627 states and 7928 transitions. [2019-10-13 20:35:23,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:35:23,695 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 354 [2019-10-13 20:35:23,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:35:23,722 INFO L225 Difference]: With dead ends: 5627 [2019-10-13 20:35:23,722 INFO L226 Difference]: Without dead ends: 2828 [2019-10-13 20:35:23,739 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 709 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:35:23,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2019-10-13 20:35:23,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 2826. [2019-10-13 20:35:23,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2826 states. [2019-10-13 20:35:23,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2826 states to 2826 states and 3931 transitions. [2019-10-13 20:35:23,888 INFO L78 Accepts]: Start accepts. Automaton has 2826 states and 3931 transitions. Word has length 354 [2019-10-13 20:35:23,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:35:23,895 INFO L462 AbstractCegarLoop]: Abstraction has 2826 states and 3931 transitions. [2019-10-13 20:35:23,896 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:35:23,896 INFO L276 IsEmpty]: Start isEmpty. Operand 2826 states and 3931 transitions. [2019-10-13 20:35:23,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2019-10-13 20:35:23,916 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:35:23,917 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:35:24,131 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 20:35:24,131 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:35:24,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:35:24,132 INFO L82 PathProgramCache]: Analyzing trace with hash 885255781, now seen corresponding path program 1 times [2019-10-13 20:35:24,132 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:35:24,133 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411128178] [2019-10-13 20:35:24,133 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:24,133 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:24,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:35:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:35:24,767 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2019-10-13 20:35:24,768 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411128178] [2019-10-13 20:35:24,768 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:35:24,769 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:35:24,769 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896475497] [2019-10-13 20:35:24,771 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:35:24,771 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:35:24,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:35:24,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:35:24,772 INFO L87 Difference]: Start difference. First operand 2826 states and 3931 transitions. Second operand 3 states. [2019-10-13 20:35:24,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:35:24,944 INFO L93 Difference]: Finished difference Result 4634 states and 6523 transitions. [2019-10-13 20:35:24,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:35:24,945 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 358 [2019-10-13 20:35:24,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:35:24,981 INFO L225 Difference]: With dead ends: 4634 [2019-10-13 20:35:24,981 INFO L226 Difference]: Without dead ends: 4631 [2019-10-13 20:35:24,985 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:35:24,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4631 states. [2019-10-13 20:35:25,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4631 to 4541. [2019-10-13 20:35:25,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4541 states. [2019-10-13 20:35:25,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4541 states to 4541 states and 6364 transitions. [2019-10-13 20:35:25,295 INFO L78 Accepts]: Start accepts. Automaton has 4541 states and 6364 transitions. Word has length 358 [2019-10-13 20:35:25,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:35:25,296 INFO L462 AbstractCegarLoop]: Abstraction has 4541 states and 6364 transitions. [2019-10-13 20:35:25,296 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:35:25,296 INFO L276 IsEmpty]: Start isEmpty. Operand 4541 states and 6364 transitions. [2019-10-13 20:35:25,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2019-10-13 20:35:25,329 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:35:25,330 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:35:25,330 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:35:25,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:35:25,330 INFO L82 PathProgramCache]: Analyzing trace with hash 2090425307, now seen corresponding path program 1 times [2019-10-13 20:35:25,331 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:35:25,331 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62013283] [2019-10-13 20:35:25,331 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:25,331 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:25,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:35:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:35:25,757 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2019-10-13 20:35:25,758 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62013283] [2019-10-13 20:35:25,758 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:35:25,758 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:35:25,758 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579032740] [2019-10-13 20:35:25,761 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:35:25,761 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:35:25,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:35:25,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:35:25,762 INFO L87 Difference]: Start difference. First operand 4541 states and 6364 transitions. Second operand 3 states. [2019-10-13 20:35:26,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:35:26,198 INFO L93 Difference]: Finished difference Result 13157 states and 18432 transitions. [2019-10-13 20:35:26,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:35:26,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 393 [2019-10-13 20:35:26,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:35:26,259 INFO L225 Difference]: With dead ends: 13157 [2019-10-13 20:35:26,260 INFO L226 Difference]: Without dead ends: 8643 [2019-10-13 20:35:26,284 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:35:26,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8643 states. [2019-10-13 20:35:26,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8643 to 8638. [2019-10-13 20:35:26,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8638 states. [2019-10-13 20:35:26,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8638 states to 8638 states and 12091 transitions. [2019-10-13 20:35:26,643 INFO L78 Accepts]: Start accepts. Automaton has 8638 states and 12091 transitions. Word has length 393 [2019-10-13 20:35:26,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:35:26,643 INFO L462 AbstractCegarLoop]: Abstraction has 8638 states and 12091 transitions. [2019-10-13 20:35:26,644 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:35:26,644 INFO L276 IsEmpty]: Start isEmpty. Operand 8638 states and 12091 transitions. [2019-10-13 20:35:26,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2019-10-13 20:35:26,710 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:35:26,711 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:35:26,711 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:35:26,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:35:26,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1607139663, now seen corresponding path program 2 times [2019-10-13 20:35:26,712 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:35:26,713 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191054881] [2019-10-13 20:35:26,713 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:26,713 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:26,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:35:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:35:27,207 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2019-10-13 20:35:27,208 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191054881] [2019-10-13 20:35:27,208 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:35:27,208 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:35:27,208 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978537582] [2019-10-13 20:35:27,209 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:35:27,210 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:35:27,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:35:27,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:35:27,210 INFO L87 Difference]: Start difference. First operand 8638 states and 12091 transitions. Second operand 3 states. [2019-10-13 20:35:29,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:35:29,971 INFO L93 Difference]: Finished difference Result 21493 states and 30118 transitions. [2019-10-13 20:35:29,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:35:29,971 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 393 [2019-10-13 20:35:29,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:35:30,069 INFO L225 Difference]: With dead ends: 21493 [2019-10-13 20:35:30,069 INFO L226 Difference]: Without dead ends: 12882 [2019-10-13 20:35:30,109 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:35:30,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12882 states. [2019-10-13 20:35:30,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12882 to 12847. [2019-10-13 20:35:30,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12847 states. [2019-10-13 20:35:30,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12847 states to 12847 states and 17982 transitions. [2019-10-13 20:35:30,620 INFO L78 Accepts]: Start accepts. Automaton has 12847 states and 17982 transitions. Word has length 393 [2019-10-13 20:35:30,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:35:30,621 INFO L462 AbstractCegarLoop]: Abstraction has 12847 states and 17982 transitions. [2019-10-13 20:35:30,621 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:35:30,621 INFO L276 IsEmpty]: Start isEmpty. Operand 12847 states and 17982 transitions. [2019-10-13 20:35:30,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2019-10-13 20:35:30,693 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:35:30,694 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:35:30,694 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:35:30,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:35:30,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1502504745, now seen corresponding path program 1 times [2019-10-13 20:35:30,695 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:35:30,695 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024905097] [2019-10-13 20:35:30,695 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:30,695 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:30,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:35:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:35:31,169 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2019-10-13 20:35:31,170 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024905097] [2019-10-13 20:35:31,170 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260098751] [2019-10-13 20:35:31,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 20:35:33,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:35:33,193 INFO L256 TraceCheckSpWp]: Trace formula consists of 4608 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 20:35:33,220 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 20:35:33,358 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 73 proven. 1 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2019-10-13 20:35:33,359 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 20:35:33,691 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2019-10-13 20:35:33,692 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1156573251] [2019-10-13 20:35:33,698 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 394 [2019-10-13 20:35:33,770 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 20:35:33,770 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2)