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-validator-v0.6/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:02:48,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:02:48,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:02:48,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:02:48,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:02:48,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:02:48,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:02:48,727 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:02:48,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:02:48,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:02:48,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:02:48,732 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:02:48,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:02:48,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:02:48,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:02:48,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:02:48,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:02:48,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:02:48,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:02:48,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:02:48,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:02:48,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:02:48,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:02:48,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:02:48,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:02:48,750 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:02:48,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:02:48,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:02:48,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:02:48,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:02:48,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:02:48,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:02:48,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:02:48,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:02:48,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:02:48,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:02:48,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:02:48,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:02:48,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:02:48,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:02:48,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:02:48,766 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 21:02:48,788 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:02:48,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:02:48,790 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:02:48,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:02:48,791 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:02:48,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:02:48,791 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:02:48,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:02:48,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:02:48,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:02:48,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:02:48,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:02:48,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:02:48,794 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:02:48,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:02:48,794 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:02:48,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:02:48,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:02:48,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:02:48,795 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:02:48,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:02:48,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:02:48,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:02:48,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:02:48,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:02:48,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:02:48,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:02:48,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:02:48,798 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 21:02:49,123 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:02:49,143 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:02:49,151 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:02:49,153 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:02:49,153 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:02:49,154 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i [2019-10-13 21:02:49,229 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0a75658e/0987cc9366554ec5b4621c0a6940d4f7/FLAG4e92650f8 [2019-10-13 21:02:50,002 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:02:50,002 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i [2019-10-13 21:02:50,041 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0a75658e/0987cc9366554ec5b4621c0a6940d4f7/FLAG4e92650f8 [2019-10-13 21:02:50,546 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0a75658e/0987cc9366554ec5b4621c0a6940d4f7 [2019-10-13 21:02:50,556 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:02:50,557 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:02:50,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:02:50,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:02:50,563 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:02:50,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:02:50" (1/1) ... [2019-10-13 21:02:50,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c657e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:02:50, skipping insertion in model container [2019-10-13 21:02:50,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:02:50" (1/1) ... [2019-10-13 21:02:50,574 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:02:50,664 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:02:51,248 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3496] [2019-10-13 21:02:51,252 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name readpages at C: (*readpages)(struct file___0 *filp , struct address_space___0 *mapping , struct list_head *pages , unsigned int nr_pages ) [3498-3499] [2019-10-13 21:02:51,252 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name write_begin at C: (*write_begin)(struct file___0 * , struct address_space___0 *mapping , loff_t pos , unsigned int len , unsigned int flags , struct page **pagep , void **fsdata ) [3500-3502] [2019-10-13 21:02:51,253 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name write_end at C: (*write_end)(struct file___0 * , struct address_space___0 *mapping , loff_t pos , unsigned int len , unsigned int copied , struct page *page , void *fsdata ) [3503-3504] [2019-10-13 21:02:51,253 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3505] [2019-10-13 21:02:51,254 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name get_xip_mem at C: (*get_xip_mem)(struct address_space___0 * , unsigned long , int , void ** , unsigned long * ) [3511-3512] [2019-10-13 21:02:51,254 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3513] [2019-10-13 21:02:51,255 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3516] [2019-10-13 21:02:51,269 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3929] [2019-10-13 21:02:51,274 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3930] [2019-10-13 21:02:51,275 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3931] [2019-10-13 21:02:51,275 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3932] [2019-10-13 21:02:51,276 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3933] [2019-10-13 21:02:51,276 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3934] [2019-10-13 21:02:52,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:02:52,043 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:02:52,140 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3496] [2019-10-13 21:02:52,141 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name readpages at C: (*readpages)(struct file___0 *filp , struct address_space___0 *mapping , struct list_head *pages , unsigned int nr_pages ) [3498-3499] [2019-10-13 21:02:52,142 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name write_begin at C: (*write_begin)(struct file___0 * , struct address_space___0 *mapping , loff_t pos , unsigned int len , unsigned int flags , struct page **pagep , void **fsdata ) [3500-3502] [2019-10-13 21:02:52,142 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name write_end at C: (*write_end)(struct file___0 * , struct address_space___0 *mapping , loff_t pos , unsigned int len , unsigned int copied , struct page *page , void *fsdata ) [3503-3504] [2019-10-13 21:02:52,143 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3505] [2019-10-13 21:02:52,143 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name get_xip_mem at C: (*get_xip_mem)(struct address_space___0 * , unsigned long , int , void ** , unsigned long * ) [3511-3512] [2019-10-13 21:02:52,144 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3513] [2019-10-13 21:02:52,145 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3516] [2019-10-13 21:02:52,153 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3929] [2019-10-13 21:02:52,154 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3930] [2019-10-13 21:02:52,154 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3931] [2019-10-13 21:02:52,155 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3932] [2019-10-13 21:02:52,155 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3933] [2019-10-13 21:02:52,156 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3934] [2019-10-13 21:02:52,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:02:52,708 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:02:52,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:02:52 WrapperNode [2019-10-13 21:02:52,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:02:52,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:02:52,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:02:52,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:02:52,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:02:52" (1/1) ... [2019-10-13 21:02:52,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:02:52" (1/1) ... [2019-10-13 21:02:52,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:02:52" (1/1) ... [2019-10-13 21:02:52,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:02:52" (1/1) ... [2019-10-13 21:02:52,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:02:52" (1/1) ... [2019-10-13 21:02:52,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:02:52" (1/1) ... [2019-10-13 21:02:52,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:02:52" (1/1) ... [2019-10-13 21:02:52,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:02:52,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:02:52,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:02:52,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:02:52,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:02:52" (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 21:02:53,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:02:53,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:02:53,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2019-10-13 21:02:53,069 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2019-10-13 21:02:53,069 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2019-10-13 21:02:53,070 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2019-10-13 21:02:53,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_3 [2019-10-13 21:02:53,070 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2019-10-13 21:02:53,070 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2019-10-13 21:02:53,070 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2019-10-13 21:02:53,070 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2019-10-13 21:02:53,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 21:02:53,071 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2019-10-13 21:02:53,071 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 21:02:53,071 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 21:02:53,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 21:02:53,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 21:02:53,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 21:02:53,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 21:02:53,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 21:02:53,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 21:02:53,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 21:02:53,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 21:02:53,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 21:02:53,072 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-10-13 21:02:53,073 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2019-10-13 21:02:53,073 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-10-13 21:02:53,073 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2019-10-13 21:02:53,073 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_out [2019-10-13 21:02:53,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-10-13 21:02:53,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2019-10-13 21:02:53,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-13 21:02:53,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2019-10-13 21:02:53,075 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_port_data [2019-10-13 21:02:53,076 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2019-10-13 21:02:53,076 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_startup [2019-10-13 21:02:53,076 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_release [2019-10-13 21:02:53,077 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_init_termios [2019-10-13 21:02:53,077 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_open [2019-10-13 21:02:53,077 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_close [2019-10-13 21:02:53,077 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_read_int_callback [2019-10-13 21:02:53,077 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write_callback [2019-10-13 21:02:53,077 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write [2019-10-13 21:02:53,078 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write_room [2019-10-13 21:02:53,078 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_tiocmget [2019-10-13 21:02:53,079 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_tiocmset [2019-10-13 21:02:53,079 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_set_termios [2019-10-13 21:02:53,079 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_ioctl [2019-10-13 21:02:53,079 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_init [2019-10-13 21:02:53,080 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_exit [2019-10-13 21:02:53,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_serial_driver_1 [2019-10-13 21:02:53,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2019-10-13 21:02:53,081 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:02:53,081 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2019-10-13 21:02:53,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_fixed_flag_4 [2019-10-13 21:02:53,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_5 [2019-10-13 21:02:53,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_port_tty_get_6 [2019-10-13 21:02:53,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_flip_buffer_push_7 [2019-10-13 21:02:53,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_get_baud_rate_8 [2019-10-13 21:02:53,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_encode_baud_rate_9 [2019-10-13 21:02:53,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_10 [2019-10-13 21:02:53,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2019-10-13 21:02:53,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 21:02:53,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-10-13 21:02:53,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_got_tty [2019-10-13 21:02:53,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_tty [2019-10-13 21:02:53,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2019-10-13 21:02:53,085 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-10-13 21:02:53,085 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 21:02:53,085 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2019-10-13 21:02:53,085 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 21:02:53,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 21:02:53,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_1 [2019-10-13 21:02:53,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2019-10-13 21:02:53,086 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2019-10-13 21:02:53,086 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2019-10-13 21:02:53,086 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 21:02:53,086 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_encode_baud_rate [2019-10-13 21:02:53,086 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2019-10-13 21:02:53,089 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_get_baud_rate [2019-10-13 21:02:53,090 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2019-10-13 21:02:53,090 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2019-10-13 21:02:53,090 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2019-10-13 21:02:53,090 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-10-13 21:02:53,090 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-10-13 21:02:53,090 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-13 21:02:53,090 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-13 21:02:53,091 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-13 21:02:53,091 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2019-10-13 21:02:53,091 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-13 21:02:53,091 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2019-10-13 21:02:53,092 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2019-10-13 21:02:53,092 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2019-10-13 21:02:53,092 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2019-10-13 21:02:53,092 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-10-13 21:02:53,092 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 21:02:53,093 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 21:02:53,094 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 21:02:53,094 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 21:02:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:02:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 21:02:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 21:02:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2019-10-13 21:02:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2019-10-13 21:02:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2019-10-13 21:02:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2019-10-13 21:02:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-10-13 21:02:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2019-10-13 21:02:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2019-10-13 21:02:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2019-10-13 21:02:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2019-10-13 21:02:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_flip_buffer_push_7 [2019-10-13 21:02:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2019-10-13 21:02:53,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_get_baud_rate_8 [2019-10-13 21:02:53,102 INFO L130 BoogieDeclarations]: Found specification of procedure tty_encode_baud_rate [2019-10-13 21:02:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_encode_baud_rate_9 [2019-10-13 21:02:53,107 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2019-10-13 21:02:53,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_port_tty_get_6 [2019-10-13 21:02:53,107 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2019-10-13 21:02:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_fixed_flag_4 [2019-10-13 21:02:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_3 [2019-10-13 21:02:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2019-10-13 21:02:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_got_tty [2019-10-13 21:02:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_tty [2019-10-13 21:02:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 21:02:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2019-10-13 21:02:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2019-10-13 21:02:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:02:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2019-10-13 21:02:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:02:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:02:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2019-10-13 21:02:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2019-10-13 21:02:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 21:02:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 21:02:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2019-10-13 21:02:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2019-10-13 21:02:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 21:02:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 21:02:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:02:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 21:02:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:02:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 21:02:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 21:02:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 21:02:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 21:02:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:02:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 21:02:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 21:02:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 21:02:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 21:02:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 21:02:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 21:02:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 21:02:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 21:02:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_serial_driver_1 [2019-10-13 21:02:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2019-10-13 21:02:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-10-13 21:02:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2019-10-13 21:02:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-10-13 21:02:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2019-10-13 21:02:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_out [2019-10-13 21:02:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 21:02:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 21:02:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2019-10-13 21:02:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-13 21:02:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_5 [2019-10-13 21:02:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-10-13 21:02:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-13 21:02:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_10 [2019-10-13 21:02:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2019-10-13 21:02:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:02:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:02:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-10-13 21:02:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-13 21:02:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-10-13 21:02:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-13 21:02:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2019-10-13 21:02:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-10-13 21:02:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-13 21:02:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2019-10-13 21:02:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_port_data [2019-10-13 21:02:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2019-10-13 21:02:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2019-10-13 21:02:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2019-10-13 21:02:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2019-10-13 21:02:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2019-10-13 21:02:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_startup [2019-10-13 21:02:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_release [2019-10-13 21:02:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_open [2019-10-13 21:02:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_close [2019-10-13 21:02:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write [2019-10-13 21:02:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write_room [2019-10-13 21:02:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_ioctl [2019-10-13 21:02:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_tiocmget [2019-10-13 21:02:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_tiocmset [2019-10-13 21:02:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_read_int_callback [2019-10-13 21:02:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write_callback [2019-10-13 21:02:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_set_termios [2019-10-13 21:02:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_init_termios [2019-10-13 21:02:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 21:02:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 21:02:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_init [2019-10-13 21:02:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_exit [2019-10-13 21:02:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2019-10-13 21:02:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_1 [2019-10-13 21:02:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 21:02:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 21:02:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:02:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2019-10-13 21:02:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-10-13 21:02:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 21:02:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:02:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:02:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:02:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:02:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 21:02:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:02:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 21:02:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 21:02:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 21:02:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 21:02:54,234 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 21:02:57,560 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2019-10-13 21:03:01,250 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:03:01,250 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 21:03:01,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:03:01 BoogieIcfgContainer [2019-10-13 21:03:01,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:03:01,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:03:01,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:03:01,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:03:01,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:02:50" (1/3) ... [2019-10-13 21:03:01,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a372cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:03:01, skipping insertion in model container [2019-10-13 21:03:01,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:02:52" (2/3) ... [2019-10-13 21:03:01,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a372cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:03:01, skipping insertion in model container [2019-10-13 21:03:01,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:03:01" (3/3) ... [2019-10-13 21:03:01,260 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i [2019-10-13 21:03:01,271 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:03:01,280 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:03:01,292 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:03:01,322 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:03:01,322 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:03:01,322 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:03:01,322 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:03:01,322 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:03:01,323 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:03:01,323 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:03:01,323 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:03:01,361 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states. [2019-10-13 21:03:01,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-13 21:03:01,392 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:03:01,392 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:03:01,395 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:03:01,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:03:01,400 INFO L82 PathProgramCache]: Analyzing trace with hash 2140098197, now seen corresponding path program 1 times [2019-10-13 21:03:01,409 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:03:01,410 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311151997] [2019-10-13 21:03:01,410 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:01,410 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:01,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:03:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:03:02,186 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 21:03:02,187 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311151997] [2019-10-13 21:03:02,188 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:03:02,188 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:03:02,188 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839405858] [2019-10-13 21:03:02,193 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:03:02,196 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:03:02,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:03:02,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:03:02,216 INFO L87 Difference]: Start difference. First operand 860 states. Second operand 3 states. [2019-10-13 21:03:02,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:03:02,687 INFO L93 Difference]: Finished difference Result 1684 states and 2289 transitions. [2019-10-13 21:03:02,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:03:02,688 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2019-10-13 21:03:02,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:03:02,713 INFO L225 Difference]: With dead ends: 1684 [2019-10-13 21:03:02,713 INFO L226 Difference]: Without dead ends: 803 [2019-10-13 21:03:02,730 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 21:03:02,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2019-10-13 21:03:02,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 803. [2019-10-13 21:03:02,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2019-10-13 21:03:02,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1068 transitions. [2019-10-13 21:03:02,879 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1068 transitions. Word has length 79 [2019-10-13 21:03:02,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:03:02,883 INFO L462 AbstractCegarLoop]: Abstraction has 803 states and 1068 transitions. [2019-10-13 21:03:02,883 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:03:02,884 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1068 transitions. [2019-10-13 21:03:02,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-13 21:03:02,896 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:03:02,896 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 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] [2019-10-13 21:03:02,897 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:03:02,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:03:02,898 INFO L82 PathProgramCache]: Analyzing trace with hash 722651996, now seen corresponding path program 1 times [2019-10-13 21:03:02,898 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:03:02,898 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748039322] [2019-10-13 21:03:02,898 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:02,898 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:02,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:03:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:03:03,266 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-13 21:03:03,266 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748039322] [2019-10-13 21:03:03,267 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:03:03,267 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:03:03,267 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312898255] [2019-10-13 21:03:03,269 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:03:03,269 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:03:03,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:03:03,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:03:03,270 INFO L87 Difference]: Start difference. First operand 803 states and 1068 transitions. Second operand 3 states. [2019-10-13 21:03:05,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:03:05,338 INFO L93 Difference]: Finished difference Result 1582 states and 2113 transitions. [2019-10-13 21:03:05,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:03:05,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2019-10-13 21:03:05,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:03:05,346 INFO L225 Difference]: With dead ends: 1582 [2019-10-13 21:03:05,346 INFO L226 Difference]: Without dead ends: 804 [2019-10-13 21:03:05,350 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 21:03:05,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2019-10-13 21:03:05,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 804. [2019-10-13 21:03:05,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 804 states. [2019-10-13 21:03:05,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1069 transitions. [2019-10-13 21:03:05,395 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1069 transitions. Word has length 129 [2019-10-13 21:03:05,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:03:05,398 INFO L462 AbstractCegarLoop]: Abstraction has 804 states and 1069 transitions. [2019-10-13 21:03:05,399 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:03:05,399 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1069 transitions. [2019-10-13 21:03:05,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-13 21:03:05,404 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:03:05,404 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 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] [2019-10-13 21:03:05,405 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:03:05,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:03:05,406 INFO L82 PathProgramCache]: Analyzing trace with hash 331458094, now seen corresponding path program 1 times [2019-10-13 21:03:05,406 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:03:05,406 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029937737] [2019-10-13 21:03:05,407 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:05,407 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:05,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:03:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:03:05,682 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-13 21:03:05,683 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029937737] [2019-10-13 21:03:05,683 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:03:05,683 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:03:05,683 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106943149] [2019-10-13 21:03:05,684 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:03:05,684 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:03:05,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:03:05,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:03:05,685 INFO L87 Difference]: Start difference. First operand 804 states and 1069 transitions. Second operand 3 states. [2019-10-13 21:03:08,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:03:08,218 INFO L93 Difference]: Finished difference Result 1890 states and 2530 transitions. [2019-10-13 21:03:08,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:03:08,218 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2019-10-13 21:03:08,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:03:08,233 INFO L225 Difference]: With dead ends: 1890 [2019-10-13 21:03:08,234 INFO L226 Difference]: Without dead ends: 1111 [2019-10-13 21:03:08,237 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 21:03:08,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2019-10-13 21:03:08,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1108. [2019-10-13 21:03:08,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1108 states. [2019-10-13 21:03:08,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1454 transitions. [2019-10-13 21:03:08,326 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1454 transitions. Word has length 130 [2019-10-13 21:03:08,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:03:08,328 INFO L462 AbstractCegarLoop]: Abstraction has 1108 states and 1454 transitions. [2019-10-13 21:03:08,329 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:03:08,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1454 transitions. [2019-10-13 21:03:08,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-13 21:03:08,340 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:03:08,340 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 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] [2019-10-13 21:03:08,341 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:03:08,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:03:08,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1402710366, now seen corresponding path program 1 times [2019-10-13 21:03:08,343 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:03:08,343 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783328597] [2019-10-13 21:03:08,344 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:08,344 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:08,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:03:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:03:09,062 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2019-10-13 21:03:09,063 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783328597] [2019-10-13 21:03:09,063 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51890324] [2019-10-13 21:03:09,063 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 21:03:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:03:09,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 2882 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-13 21:03:09,930 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:03:10,055 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-13 21:03:10,055 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:03:10,297 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-13 21:03:10,298 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 21:03:10,298 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [13] total 17 [2019-10-13 21:03:10,298 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589578643] [2019-10-13 21:03:10,299 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:03:10,301 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:03:10,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:03:10,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2019-10-13 21:03:10,303 INFO L87 Difference]: Start difference. First operand 1108 states and 1454 transitions. Second operand 6 states. [2019-10-13 21:03:12,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:03:12,333 INFO L93 Difference]: Finished difference Result 3277 states and 4300 transitions. [2019-10-13 21:03:12,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:03:12,334 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2019-10-13 21:03:12,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:03:12,348 INFO L225 Difference]: With dead ends: 3277 [2019-10-13 21:03:12,348 INFO L226 Difference]: Without dead ends: 2143 [2019-10-13 21:03:12,354 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2019-10-13 21:03:12,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2143 states. [2019-10-13 21:03:12,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2143 to 2095. [2019-10-13 21:03:12,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2095 states. [2019-10-13 21:03:12,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2095 states to 2095 states and 2764 transitions. [2019-10-13 21:03:12,456 INFO L78 Accepts]: Start accepts. Automaton has 2095 states and 2764 transitions. Word has length 129 [2019-10-13 21:03:12,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:03:12,457 INFO L462 AbstractCegarLoop]: Abstraction has 2095 states and 2764 transitions. [2019-10-13 21:03:12,457 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:03:12,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2095 states and 2764 transitions. [2019-10-13 21:03:12,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-13 21:03:12,461 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:03:12,461 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 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] [2019-10-13 21:03:12,676 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:03:12,676 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:03:12,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:03:12,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1401822912, now seen corresponding path program 1 times [2019-10-13 21:03:12,677 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:03:12,677 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858905796] [2019-10-13 21:03:12,678 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:12,678 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:12,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:03:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:03:13,507 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2019-10-13 21:03:13,508 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858905796] [2019-10-13 21:03:13,508 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565982412] [2019-10-13 21:03:13,508 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 21:03:15,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:03:15,620 INFO L256 TraceCheckSpWp]: Trace formula consists of 3072 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-13 21:03:15,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:03:15,715 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2019-10-13 21:03:15,715 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:03:15,921 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2019-10-13 21:03:15,922 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 21:03:15,922 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [13] total 13 [2019-10-13 21:03:15,922 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470822558] [2019-10-13 21:03:15,923 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:03:15,924 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:03:15,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:03:15,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:03:15,925 INFO L87 Difference]: Start difference. First operand 2095 states and 2764 transitions. Second operand 3 states. [2019-10-13 21:03:17,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:03:17,674 INFO L93 Difference]: Finished difference Result 4073 states and 5401 transitions. [2019-10-13 21:03:17,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:03:17,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-13 21:03:17,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:03:17,699 INFO L225 Difference]: With dead ends: 4073 [2019-10-13 21:03:17,700 INFO L226 Difference]: Without dead ends: 4070 [2019-10-13 21:03:17,703 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 309 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:03:17,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4070 states. [2019-10-13 21:03:17,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4070 to 3990. [2019-10-13 21:03:17,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3990 states. [2019-10-13 21:03:17,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3990 states to 3990 states and 5299 transitions. [2019-10-13 21:03:17,892 INFO L78 Accepts]: Start accepts. Automaton has 3990 states and 5299 transitions. Word has length 155 [2019-10-13 21:03:17,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:03:17,893 INFO L462 AbstractCegarLoop]: Abstraction has 3990 states and 5299 transitions. [2019-10-13 21:03:17,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:03:17,893 INFO L276 IsEmpty]: Start isEmpty. Operand 3990 states and 5299 transitions. [2019-10-13 21:03:17,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-13 21:03:17,898 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:03:17,898 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 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] [2019-10-13 21:03:18,114 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:03:18,114 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:03:18,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:03:18,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1339061360, now seen corresponding path program 1 times [2019-10-13 21:03:18,115 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:03:18,116 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504468763] [2019-10-13 21:03:18,116 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:18,116 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:18,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:03:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:03:18,340 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2019-10-13 21:03:18,344 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504468763] [2019-10-13 21:03:18,345 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:03:18,345 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:03:18,345 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079667242] [2019-10-13 21:03:18,346 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:03:18,346 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:03:18,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:03:18,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:03:18,352 INFO L87 Difference]: Start difference. First operand 3990 states and 5299 transitions. Second operand 3 states. [2019-10-13 21:03:20,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:03:20,970 INFO L93 Difference]: Finished difference Result 9064 states and 12123 transitions. [2019-10-13 21:03:20,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:03:20,970 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-10-13 21:03:20,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:03:21,006 INFO L225 Difference]: With dead ends: 9064 [2019-10-13 21:03:21,006 INFO L226 Difference]: Without dead ends: 5099 [2019-10-13 21:03:21,024 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 21:03:21,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5099 states. [2019-10-13 21:03:21,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5099 to 5096. [2019-10-13 21:03:21,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5096 states. [2019-10-13 21:03:21,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5096 states to 5096 states and 6715 transitions. [2019-10-13 21:03:21,316 INFO L78 Accepts]: Start accepts. Automaton has 5096 states and 6715 transitions. Word has length 178 [2019-10-13 21:03:21,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:03:21,316 INFO L462 AbstractCegarLoop]: Abstraction has 5096 states and 6715 transitions. [2019-10-13 21:03:21,318 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:03:21,318 INFO L276 IsEmpty]: Start isEmpty. Operand 5096 states and 6715 transitions. [2019-10-13 21:03:21,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-13 21:03:21,328 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:03:21,329 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 3, 3, 3, 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] [2019-10-13 21:03:21,329 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:03:21,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:03:21,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1046576945, now seen corresponding path program 1 times [2019-10-13 21:03:21,330 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:03:21,330 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237281710] [2019-10-13 21:03:21,330 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:21,330 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:21,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:03:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:03:21,618 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2019-10-13 21:03:21,619 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237281710] [2019-10-13 21:03:21,619 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:03:21,619 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:03:21,619 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333808967] [2019-10-13 21:03:21,621 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:03:21,621 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:03:21,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:03:21,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:03:21,622 INFO L87 Difference]: Start difference. First operand 5096 states and 6715 transitions. Second operand 3 states. [2019-10-13 21:03:23,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:03:23,865 INFO L93 Difference]: Finished difference Result 11312 states and 14979 transitions. [2019-10-13 21:03:23,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:03:23,865 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2019-10-13 21:03:23,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:03:23,901 INFO L225 Difference]: With dead ends: 11312 [2019-10-13 21:03:23,901 INFO L226 Difference]: Without dead ends: 6241 [2019-10-13 21:03:23,920 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 21:03:23,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6241 states. [2019-10-13 21:03:24,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6241 to 6238. [2019-10-13 21:03:24,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6238 states. [2019-10-13 21:03:24,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6238 states to 6238 states and 8155 transitions. [2019-10-13 21:03:24,142 INFO L78 Accepts]: Start accepts. Automaton has 6238 states and 8155 transitions. Word has length 208 [2019-10-13 21:03:24,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:03:24,143 INFO L462 AbstractCegarLoop]: Abstraction has 6238 states and 8155 transitions. [2019-10-13 21:03:24,143 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:03:24,143 INFO L276 IsEmpty]: Start isEmpty. Operand 6238 states and 8155 transitions. [2019-10-13 21:03:24,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2019-10-13 21:03:24,152 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:03:24,152 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 4, 4, 4, 3, 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] [2019-10-13 21:03:24,153 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:03:24,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:03:24,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1319784397, now seen corresponding path program 1 times [2019-10-13 21:03:24,153 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:03:24,154 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781680474] [2019-10-13 21:03:24,154 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:24,154 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:24,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:03:24,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:03:24,645 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2019-10-13 21:03:24,645 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781680474] [2019-10-13 21:03:24,646 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:03:24,646 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:03:24,646 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998714453] [2019-10-13 21:03:24,647 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:03:24,648 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:03:24,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:03:24,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:03:24,649 INFO L87 Difference]: Start difference. First operand 6238 states and 8155 transitions. Second operand 3 states. [2019-10-13 21:03:24,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:03:24,852 INFO L93 Difference]: Finished difference Result 12451 states and 16355 transitions. [2019-10-13 21:03:24,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:03:24,853 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 263 [2019-10-13 21:03:24,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:03:24,899 INFO L225 Difference]: With dead ends: 12451 [2019-10-13 21:03:24,899 INFO L226 Difference]: Without dead ends: 6238 [2019-10-13 21:03:24,925 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 21:03:24,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6238 states. [2019-10-13 21:03:25,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6238 to 6238. [2019-10-13 21:03:25,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6238 states. [2019-10-13 21:03:25,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6238 states to 6238 states and 7961 transitions. [2019-10-13 21:03:25,188 INFO L78 Accepts]: Start accepts. Automaton has 6238 states and 7961 transitions. Word has length 263 [2019-10-13 21:03:25,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:03:25,191 INFO L462 AbstractCegarLoop]: Abstraction has 6238 states and 7961 transitions. [2019-10-13 21:03:25,191 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:03:25,191 INFO L276 IsEmpty]: Start isEmpty. Operand 6238 states and 7961 transitions. [2019-10-13 21:03:25,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2019-10-13 21:03:25,201 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:03:25,201 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 4, 4, 4, 3, 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] [2019-10-13 21:03:25,202 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:03:25,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:03:25,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1297152143, now seen corresponding path program 1 times [2019-10-13 21:03:25,202 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:03:25,202 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980630359] [2019-10-13 21:03:25,203 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:25,203 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:25,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:03:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:03:25,559 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2019-10-13 21:03:25,559 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980630359] [2019-10-13 21:03:25,560 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:03:25,560 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:03:25,560 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418337522] [2019-10-13 21:03:25,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:03:25,561 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:03:25,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:03:25,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:03:25,562 INFO L87 Difference]: Start difference. First operand 6238 states and 7961 transitions. Second operand 8 states.