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 0.1.24-13a467a-m [2019-10-15 01:01:48,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:01:48,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:01:48,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:01:48,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:01:48,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:01:48,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:01:48,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:01:48,950 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:01:48,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:01:48,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:01:48,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:01:48,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:01:48,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:01:48,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:01:48,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:01:48,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:01:48,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:01:48,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:01:48,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:01:48,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:01:48,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:01:48,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:01:48,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:01:48,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:01:48,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:01:48,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:01:48,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:01:48,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:01:48,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:01:48,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:01:48,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:01:48,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:01:48,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:01:48,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:01:48,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:01:48,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:01:48,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:01:48,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:01:48,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:01:48,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:01:48,999 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 [2019-10-15 01:01:49,015 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:01:49,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:01:49,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:01:49,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:01:49,017 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:01:49,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:01:49,018 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:01:49,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:01:49,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:01:49,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:01:49,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:01:49,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:01:49,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:01:49,019 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:01:49,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:01:49,020 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:01:49,020 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:01:49,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:01:49,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:01:49,021 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:01:49,021 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:01:49,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:01:49,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:01:49,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:01:49,022 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:01:49,022 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:01:49,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:01:49,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:01:49,022 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 [2019-10-15 01:01:49,344 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:01:49,362 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:01:49,366 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:01:49,368 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:01:49,368 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:01:49,369 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i [2019-10-15 01:01:49,433 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a8dbbf34/37f3c21a7db94c5494a2acf55cbaefa7/FLAG3c7a8ae14 [2019-10-15 01:01:50,216 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:01:50,219 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i [2019-10-15 01:01:50,263 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a8dbbf34/37f3c21a7db94c5494a2acf55cbaefa7/FLAG3c7a8ae14 [2019-10-15 01:01:50,361 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a8dbbf34/37f3c21a7db94c5494a2acf55cbaefa7 [2019-10-15 01:01:50,370 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:01:50,372 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:01:50,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:01:50,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:01:50,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:01:50,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:01:50" (1/1) ... [2019-10-15 01:01:50,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67122e4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:50, skipping insertion in model container [2019-10-15 01:01:50,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:01:50" (1/1) ... [2019-10-15 01:01:50,387 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:01:50,491 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:01:51,094 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3496] [2019-10-15 01:01:51,094 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] [2019-10-15 01:01:51,095 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] [2019-10-15 01:01:51,095 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] [2019-10-15 01:01:51,096 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3505] [2019-10-15 01:01:51,097 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] [2019-10-15 01:01:51,097 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3513] [2019-10-15 01:01:51,098 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] [2019-10-15 01:01:51,112 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3929] [2019-10-15 01:01:51,113 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3930] [2019-10-15 01:01:51,113 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3931] [2019-10-15 01:01:51,114 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3932] [2019-10-15 01:01:51,115 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] [2019-10-15 01:01:51,115 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3934] [2019-10-15 01:01:52,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:01:52,140 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:01:52,242 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3496] [2019-10-15 01:01:52,243 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] [2019-10-15 01:01:52,244 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] [2019-10-15 01:01:52,244 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] [2019-10-15 01:01:52,244 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3505] [2019-10-15 01:01:52,245 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] [2019-10-15 01:01:52,246 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3513] [2019-10-15 01:01:52,247 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] [2019-10-15 01:01:52,255 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3929] [2019-10-15 01:01:52,256 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3930] [2019-10-15 01:01:52,256 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3931] [2019-10-15 01:01:52,257 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3932] [2019-10-15 01:01:52,258 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] [2019-10-15 01:01:52,258 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3934] [2019-10-15 01:01:52,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:01:52,620 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:01:52,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:52 WrapperNode [2019-10-15 01:01:52,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:01:52,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:01:52,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:01:52,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:01:52,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:52" (1/1) ... [2019-10-15 01:01:52,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:52" (1/1) ... [2019-10-15 01:01:52,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:52" (1/1) ... [2019-10-15 01:01:52,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:52" (1/1) ... [2019-10-15 01:01:52,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:52" (1/1) ... [2019-10-15 01:01:52,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:52" (1/1) ... [2019-10-15 01:01:52,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:52" (1/1) ... [2019-10-15 01:01:52,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:01:52,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:01:52,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:01:52,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:01:52,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:52" (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 [2019-10-15 01:01:52,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:01:52,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:01:52,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2019-10-15 01:01:52,975 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2019-10-15 01:01:52,976 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2019-10-15 01:01:52,976 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2019-10-15 01:01:52,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_3 [2019-10-15 01:01:52,976 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2019-10-15 01:01:52,976 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2019-10-15 01:01:52,977 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2019-10-15 01:01:52,977 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2019-10-15 01:01:52,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 01:01:52,977 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2019-10-15 01:01:52,977 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 01:01:52,977 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-15 01:01:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-15 01:01:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-15 01:01:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-15 01:01:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-15 01:01:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-15 01:01:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-15 01:01:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-15 01:01:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-15 01:01:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-15 01:01:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-10-15 01:01:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2019-10-15 01:01:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-10-15 01:01:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2019-10-15 01:01:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_out [2019-10-15 01:01:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-10-15 01:01:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2019-10-15 01:01:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-15 01:01:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2019-10-15 01:01:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_port_data [2019-10-15 01:01:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2019-10-15 01:01:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_startup [2019-10-15 01:01:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_release [2019-10-15 01:01:52,981 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_init_termios [2019-10-15 01:01:52,981 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_open [2019-10-15 01:01:52,981 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_close [2019-10-15 01:01:52,981 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_read_int_callback [2019-10-15 01:01:52,981 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write_callback [2019-10-15 01:01:52,981 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write [2019-10-15 01:01:52,982 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write_room [2019-10-15 01:01:52,982 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_tiocmget [2019-10-15 01:01:52,982 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_tiocmset [2019-10-15 01:01:52,982 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_set_termios [2019-10-15 01:01:52,982 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_ioctl [2019-10-15 01:01:52,982 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_init [2019-10-15 01:01:52,982 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_exit [2019-10-15 01:01:52,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_serial_driver_1 [2019-10-15 01:01:52,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2019-10-15 01:01:52,983 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:01:52,983 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2019-10-15 01:01:52,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_fixed_flag_4 [2019-10-15 01:01:52,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_5 [2019-10-15 01:01:52,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_port_tty_get_6 [2019-10-15 01:01:52,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_flip_buffer_push_7 [2019-10-15 01:01:52,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_get_baud_rate_8 [2019-10-15 01:01:52,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_encode_baud_rate_9 [2019-10-15 01:01:52,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_10 [2019-10-15 01:01:52,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2019-10-15 01:01:52,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 01:01:52,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-10-15 01:01:52,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_got_tty [2019-10-15 01:01:52,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_tty [2019-10-15 01:01:52,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2019-10-15 01:01:52,985 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-10-15 01:01:52,985 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-15 01:01:52,986 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2019-10-15 01:01:52,986 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-15 01:01:52,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 01:01:52,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_1 [2019-10-15 01:01:52,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2019-10-15 01:01:52,986 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2019-10-15 01:01:52,986 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2019-10-15 01:01:52,987 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-15 01:01:52,987 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_encode_baud_rate [2019-10-15 01:01:52,987 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2019-10-15 01:01:52,987 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_get_baud_rate [2019-10-15 01:01:52,987 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2019-10-15 01:01:52,987 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2019-10-15 01:01:52,987 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2019-10-15 01:01:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-10-15 01:01:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-10-15 01:01:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-15 01:01:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-15 01:01:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-15 01:01:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2019-10-15 01:01:52,989 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-15 01:01:52,989 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2019-10-15 01:01:52,989 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2019-10-15 01:01:52,989 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2019-10-15 01:01:52,989 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2019-10-15 01:01:52,989 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-10-15 01:01:52,989 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 01:01:52,990 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 01:01:52,990 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-15 01:01:52,990 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-15 01:01:52,990 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:01:52,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-15 01:01:52,991 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-15 01:01:52,991 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2019-10-15 01:01:52,991 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2019-10-15 01:01:52,991 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2019-10-15 01:01:52,991 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2019-10-15 01:01:52,991 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-10-15 01:01:52,992 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2019-10-15 01:01:52,992 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2019-10-15 01:01:52,992 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2019-10-15 01:01:52,992 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2019-10-15 01:01:52,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_flip_buffer_push_7 [2019-10-15 01:01:52,992 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2019-10-15 01:01:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_get_baud_rate_8 [2019-10-15 01:01:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure tty_encode_baud_rate [2019-10-15 01:01:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_encode_baud_rate_9 [2019-10-15 01:01:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2019-10-15 01:01:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_port_tty_get_6 [2019-10-15 01:01:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2019-10-15 01:01:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_fixed_flag_4 [2019-10-15 01:01:52,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_3 [2019-10-15 01:01:52,994 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2019-10-15 01:01:52,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_got_tty [2019-10-15 01:01:52,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_tty [2019-10-15 01:01:52,994 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 01:01:52,994 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2019-10-15 01:01:52,995 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2019-10-15 01:01:52,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:01:52,995 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2019-10-15 01:01:52,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:01:52,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:01:52,995 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2019-10-15 01:01:52,995 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2019-10-15 01:01:52,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-15 01:01:52,996 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 01:01:52,996 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2019-10-15 01:01:52,996 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2019-10-15 01:01:52,996 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 01:01:52,996 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-15 01:01:52,997 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:01:52,997 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 01:01:52,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:01:52,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 01:01:52,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 01:01:52,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 01:01:52,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 01:01:52,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:01:52,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-15 01:01:52,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-15 01:01:52,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-15 01:01:52,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-15 01:01:52,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-15 01:01:52,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-15 01:01:52,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-15 01:01:52,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-15 01:01:52,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_serial_driver_1 [2019-10-15 01:01:52,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2019-10-15 01:01:52,999 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-10-15 01:01:52,999 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2019-10-15 01:01:52,999 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-10-15 01:01:52,999 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2019-10-15 01:01:53,000 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_out [2019-10-15 01:01:53,000 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-15 01:01:53,000 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-15 01:01:53,000 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2019-10-15 01:01:53,000 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-15 01:01:53,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_5 [2019-10-15 01:01:53,000 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-10-15 01:01:53,001 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-15 01:01:53,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_10 [2019-10-15 01:01:53,001 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2019-10-15 01:01:53,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:01:53,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:01:53,001 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-10-15 01:01:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-15 01:01:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-10-15 01:01:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-15 01:01:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2019-10-15 01:01:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-10-15 01:01:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-15 01:01:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2019-10-15 01:01:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_port_data [2019-10-15 01:01:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2019-10-15 01:01:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2019-10-15 01:01:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2019-10-15 01:01:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2019-10-15 01:01:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2019-10-15 01:01:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_startup [2019-10-15 01:01:53,004 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_release [2019-10-15 01:01:53,004 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_open [2019-10-15 01:01:53,004 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_close [2019-10-15 01:01:53,004 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write [2019-10-15 01:01:53,004 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write_room [2019-10-15 01:01:53,004 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_ioctl [2019-10-15 01:01:53,004 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_tiocmget [2019-10-15 01:01:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_tiocmset [2019-10-15 01:01:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_read_int_callback [2019-10-15 01:01:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write_callback [2019-10-15 01:01:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_set_termios [2019-10-15 01:01:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_init_termios [2019-10-15 01:01:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-15 01:01:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-15 01:01:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_init [2019-10-15 01:01:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_exit [2019-10-15 01:01:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2019-10-15 01:01:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_1 [2019-10-15 01:01:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 01:01:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 01:01:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:01:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2019-10-15 01:01:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-10-15 01:01:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 01:01:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:01:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:01:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:01:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:01:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 01:01:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:01:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-15 01:01:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-15 01:01:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-15 01:01:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-15 01:01:54,345 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-15 01:01:57,202 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2019-10-15 01:02:00,988 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:02:00,989 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 01:02:00,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:02:00 BoogieIcfgContainer [2019-10-15 01:02:00,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:02:00,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:02:00,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:02:00,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:02:00,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:01:50" (1/3) ... [2019-10-15 01:02:00,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef20b62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:02:00, skipping insertion in model container [2019-10-15 01:02:00,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:52" (2/3) ... [2019-10-15 01:02:00,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef20b62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:02:00, skipping insertion in model container [2019-10-15 01:02:00,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:02:00" (3/3) ... [2019-10-15 01:02:00,999 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i [2019-10-15 01:02:01,013 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:02:01,026 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:02:01,037 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:02:01,077 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:02:01,078 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:02:01,079 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:02:01,079 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:02:01,087 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:02:01,087 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:02:01,087 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:02:01,088 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:02:01,131 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states. [2019-10-15 01:02:01,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-15 01:02:01,151 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:02:01,152 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] [2019-10-15 01:02:01,154 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:02:01,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:02:01,160 INFO L82 PathProgramCache]: Analyzing trace with hash 2140098197, now seen corresponding path program 1 times [2019-10-15 01:02:01,170 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:02:01,170 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966590548] [2019-10-15 01:02:01,170 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:01,171 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:01,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:02:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:02:01,926 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:02:01,926 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966590548] [2019-10-15 01:02:01,927 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:02:01,927 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:02:01,928 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647570988] [2019-10-15 01:02:01,932 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:02:01,934 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:02:01,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:02:01,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:02:01,952 INFO L87 Difference]: Start difference. First operand 860 states. Second operand 3 states. [2019-10-15 01:02:02,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:02:02,443 INFO L93 Difference]: Finished difference Result 1684 states and 2289 transitions. [2019-10-15 01:02:02,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:02:02,445 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2019-10-15 01:02:02,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:02:02,488 INFO L225 Difference]: With dead ends: 1684 [2019-10-15 01:02:02,488 INFO L226 Difference]: Without dead ends: 803 [2019-10-15 01:02:02,500 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 [2019-10-15 01:02:02,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2019-10-15 01:02:02,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 803. [2019-10-15 01:02:02,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2019-10-15 01:02:02,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1068 transitions. [2019-10-15 01:02:02,638 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1068 transitions. Word has length 79 [2019-10-15 01:02:02,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:02:02,640 INFO L462 AbstractCegarLoop]: Abstraction has 803 states and 1068 transitions. [2019-10-15 01:02:02,640 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:02:02,640 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1068 transitions. [2019-10-15 01:02:02,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-15 01:02:02,656 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:02:02,657 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] [2019-10-15 01:02:02,657 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:02:02,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:02:02,657 INFO L82 PathProgramCache]: Analyzing trace with hash 722651996, now seen corresponding path program 1 times [2019-10-15 01:02:02,658 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:02:02,658 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479901411] [2019-10-15 01:02:02,658 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:02,658 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:02,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:02:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:02:03,014 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-15 01:02:03,015 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479901411] [2019-10-15 01:02:03,015 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:02:03,015 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:02:03,016 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048453633] [2019-10-15 01:02:03,018 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:02:03,018 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:02:03,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:02:03,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:02:03,019 INFO L87 Difference]: Start difference. First operand 803 states and 1068 transitions. Second operand 3 states. [2019-10-15 01:02:08,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:02:08,988 INFO L93 Difference]: Finished difference Result 1582 states and 2113 transitions. [2019-10-15 01:02:08,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:02:08,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2019-10-15 01:02:08,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:02:08,996 INFO L225 Difference]: With dead ends: 1582 [2019-10-15 01:02:08,996 INFO L226 Difference]: Without dead ends: 804 [2019-10-15 01:02:09,000 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 [2019-10-15 01:02:09,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2019-10-15 01:02:09,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 804. [2019-10-15 01:02:09,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 804 states. [2019-10-15 01:02:09,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1069 transitions. [2019-10-15 01:02:09,063 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1069 transitions. Word has length 129 [2019-10-15 01:02:09,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:02:09,064 INFO L462 AbstractCegarLoop]: Abstraction has 804 states and 1069 transitions. [2019-10-15 01:02:09,064 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:02:09,064 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1069 transitions. [2019-10-15 01:02:09,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-15 01:02:09,068 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:02:09,068 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] [2019-10-15 01:02:09,069 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:02:09,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:02:09,069 INFO L82 PathProgramCache]: Analyzing trace with hash 331458094, now seen corresponding path program 1 times [2019-10-15 01:02:09,069 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:02:09,070 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421914202] [2019-10-15 01:02:09,070 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:09,070 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:09,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:02:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:02:09,377 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-15 01:02:09,378 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421914202] [2019-10-15 01:02:09,378 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:02:09,379 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:02:09,379 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522606822] [2019-10-15 01:02:09,380 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:02:09,380 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:02:09,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:02:09,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:02:09,381 INFO L87 Difference]: Start difference. First operand 804 states and 1069 transitions. Second operand 3 states. [2019-10-15 01:02:11,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:02:11,667 INFO L93 Difference]: Finished difference Result 1890 states and 2530 transitions. [2019-10-15 01:02:11,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:02:11,668 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2019-10-15 01:02:11,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:02:11,675 INFO L225 Difference]: With dead ends: 1890 [2019-10-15 01:02:11,676 INFO L226 Difference]: Without dead ends: 1111 [2019-10-15 01:02:11,679 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 [2019-10-15 01:02:11,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2019-10-15 01:02:11,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1108. [2019-10-15 01:02:11,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1108 states. [2019-10-15 01:02:11,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1454 transitions. [2019-10-15 01:02:11,724 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1454 transitions. Word has length 130 [2019-10-15 01:02:11,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:02:11,725 INFO L462 AbstractCegarLoop]: Abstraction has 1108 states and 1454 transitions. [2019-10-15 01:02:11,725 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:02:11,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1454 transitions. [2019-10-15 01:02:11,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-15 01:02:11,728 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:02:11,728 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] [2019-10-15 01:02:11,728 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:02:11,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:02:11,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1402710366, now seen corresponding path program 1 times [2019-10-15 01:02:11,729 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:02:11,729 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213619163] [2019-10-15 01:02:11,730 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:11,730 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:11,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:02:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:02:12,456 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2019-10-15 01:02:12,456 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213619163] [2019-10-15 01:02:12,456 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701692244] [2019-10-15 01:02:12,457 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 [2019-10-15 01:02:13,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:02:13,335 INFO L256 TraceCheckSpWp]: Trace formula consists of 2882 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-15 01:02:13,351 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:02:13,478 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-15 01:02:13,478 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:02:13,632 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-15 01:02:13,633 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:02:13,633 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [13] total 17 [2019-10-15 01:02:13,633 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550594002] [2019-10-15 01:02:13,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:02:13,634 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:02:13,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:02:13,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:02:13,635 INFO L87 Difference]: Start difference. First operand 1108 states and 1454 transitions. Second operand 6 states. [2019-10-15 01:02:15,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:02:15,432 INFO L93 Difference]: Finished difference Result 3277 states and 4300 transitions. [2019-10-15 01:02:15,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:02:15,432 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2019-10-15 01:02:15,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:02:15,449 INFO L225 Difference]: With dead ends: 3277 [2019-10-15 01:02:15,449 INFO L226 Difference]: Without dead ends: 2143 [2019-10-15 01:02:15,456 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2019-10-15 01:02:15,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2143 states. [2019-10-15 01:02:15,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2143 to 2095. [2019-10-15 01:02:15,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2095 states. [2019-10-15 01:02:15,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2095 states to 2095 states and 2764 transitions. [2019-10-15 01:02:15,561 INFO L78 Accepts]: Start accepts. Automaton has 2095 states and 2764 transitions. Word has length 129 [2019-10-15 01:02:15,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:02:15,562 INFO L462 AbstractCegarLoop]: Abstraction has 2095 states and 2764 transitions. [2019-10-15 01:02:15,562 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:02:15,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2095 states and 2764 transitions. [2019-10-15 01:02:15,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-15 01:02:15,565 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:02:15,565 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] [2019-10-15 01:02:15,779 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:02:15,779 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:02:15,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:02:15,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1401822912, now seen corresponding path program 1 times [2019-10-15 01:02:15,781 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:02:15,781 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848869903] [2019-10-15 01:02:15,781 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:15,781 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:15,782 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:02:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:02:16,649 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2019-10-15 01:02:16,649 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848869903] [2019-10-15 01:02:16,650 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930340035] [2019-10-15 01:02:16,650 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 [2019-10-15 01:02:18,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:02:18,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 3072 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-15 01:02:18,691 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:02:18,767 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2019-10-15 01:02:18,767 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:02:18,964 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2019-10-15 01:02:18,964 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:02:18,965 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [13] total 13 [2019-10-15 01:02:18,965 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381811537] [2019-10-15 01:02:18,966 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:02:18,966 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:02:18,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:02:18,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:02:18,967 INFO L87 Difference]: Start difference. First operand 2095 states and 2764 transitions. Second operand 3 states. [2019-10-15 01:02:20,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:02:20,906 INFO L93 Difference]: Finished difference Result 4073 states and 5401 transitions. [2019-10-15 01:02:20,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:02:20,907 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-15 01:02:20,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:02:20,930 INFO L225 Difference]: With dead ends: 4073 [2019-10-15 01:02:20,931 INFO L226 Difference]: Without dead ends: 4070 [2019-10-15 01:02:20,934 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 309 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:02:20,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4070 states. [2019-10-15 01:02:21,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4070 to 3990. [2019-10-15 01:02:21,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3990 states. [2019-10-15 01:02:21,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3990 states to 3990 states and 5299 transitions. [2019-10-15 01:02:21,091 INFO L78 Accepts]: Start accepts. Automaton has 3990 states and 5299 transitions. Word has length 155 [2019-10-15 01:02:21,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:02:21,092 INFO L462 AbstractCegarLoop]: Abstraction has 3990 states and 5299 transitions. [2019-10-15 01:02:21,092 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:02:21,092 INFO L276 IsEmpty]: Start isEmpty. Operand 3990 states and 5299 transitions. [2019-10-15 01:02:21,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-15 01:02:21,097 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:02:21,098 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] [2019-10-15 01:02:21,313 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:02:21,313 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:02:21,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:02:21,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1339061360, now seen corresponding path program 1 times [2019-10-15 01:02:21,314 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:02:21,315 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865340610] [2019-10-15 01:02:21,315 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:21,315 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:21,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:02:21,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:02:21,571 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2019-10-15 01:02:21,572 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865340610] [2019-10-15 01:02:21,572 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:02:21,572 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:02:21,572 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799633419] [2019-10-15 01:02:21,573 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:02:21,573 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:02:21,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:02:21,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:02:21,574 INFO L87 Difference]: Start difference. First operand 3990 states and 5299 transitions. Second operand 3 states. [2019-10-15 01:02:23,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:02:23,758 INFO L93 Difference]: Finished difference Result 9064 states and 12123 transitions. [2019-10-15 01:02:23,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:02:23,759 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-10-15 01:02:23,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:02:23,790 INFO L225 Difference]: With dead ends: 9064 [2019-10-15 01:02:23,790 INFO L226 Difference]: Without dead ends: 5099 [2019-10-15 01:02:23,803 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 [2019-10-15 01:02:23,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5099 states. [2019-10-15 01:02:24,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5099 to 5096. [2019-10-15 01:02:24,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5096 states. [2019-10-15 01:02:24,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5096 states to 5096 states and 6715 transitions. [2019-10-15 01:02:24,030 INFO L78 Accepts]: Start accepts. Automaton has 5096 states and 6715 transitions. Word has length 178 [2019-10-15 01:02:24,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:02:24,031 INFO L462 AbstractCegarLoop]: Abstraction has 5096 states and 6715 transitions. [2019-10-15 01:02:24,031 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:02:24,031 INFO L276 IsEmpty]: Start isEmpty. Operand 5096 states and 6715 transitions. [2019-10-15 01:02:24,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-15 01:02:24,039 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:02:24,040 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] [2019-10-15 01:02:24,040 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:02:24,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:02:24,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1046576945, now seen corresponding path program 1 times [2019-10-15 01:02:24,041 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:02:24,041 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554730673] [2019-10-15 01:02:24,041 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:24,041 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:24,042 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:02:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:02:24,356 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2019-10-15 01:02:24,356 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554730673] [2019-10-15 01:02:24,357 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:02:24,357 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:02:24,357 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832348493] [2019-10-15 01:02:24,358 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:02:24,358 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:02:24,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:02:24,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:02:24,358 INFO L87 Difference]: Start difference. First operand 5096 states and 6715 transitions. Second operand 3 states. [2019-10-15 01:02:26,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:02:26,901 INFO L93 Difference]: Finished difference Result 11312 states and 14979 transitions. [2019-10-15 01:02:26,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:02:26,902 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2019-10-15 01:02:26,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:02:26,936 INFO L225 Difference]: With dead ends: 11312 [2019-10-15 01:02:26,937 INFO L226 Difference]: Without dead ends: 6241 [2019-10-15 01:02:26,953 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 [2019-10-15 01:02:26,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6241 states. [2019-10-15 01:02:27,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6241 to 6238. [2019-10-15 01:02:27,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6238 states. [2019-10-15 01:02:27,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6238 states to 6238 states and 8155 transitions. [2019-10-15 01:02:27,170 INFO L78 Accepts]: Start accepts. Automaton has 6238 states and 8155 transitions. Word has length 208 [2019-10-15 01:02:27,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:02:27,171 INFO L462 AbstractCegarLoop]: Abstraction has 6238 states and 8155 transitions. [2019-10-15 01:02:27,171 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:02:27,171 INFO L276 IsEmpty]: Start isEmpty. Operand 6238 states and 8155 transitions. [2019-10-15 01:02:27,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2019-10-15 01:02:27,182 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:02:27,182 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] [2019-10-15 01:02:27,182 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:02:27,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:02:27,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1319784397, now seen corresponding path program 1 times [2019-10-15 01:02:27,183 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:02:27,183 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781445865] [2019-10-15 01:02:27,183 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:27,184 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:27,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:02:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat