java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:54:24,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:54:24,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:54:24,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:54:24,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:54:24,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:54:24,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:54:24,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:54:24,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:54:24,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:54:24,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:54:24,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:54:24,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:54:24,461 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:54:24,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:54:24,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:54:24,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:54:24,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:54:24,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:54:24,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:54:24,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:54:24,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:54:24,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:54:24,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:54:24,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:54:24,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:54:24,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:54:24,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:54:24,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:54:24,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:54:24,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:54:24,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:54:24,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:54:24,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:54:24,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:54:24,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:54:24,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:54:24,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:54:24,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:54:24,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:54:24,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:54:24,485 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 22:54:24,499 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:54:24,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:54:24,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:54:24,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:54:24,501 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:54:24,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:54:24,501 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:54:24,502 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:54:24,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:54:24,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:54:24,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:54:24,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:54:24,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:54:24,503 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:54:24,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:54:24,503 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:54:24,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:54:24,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:54:24,504 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:54:24,504 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:54:24,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:54:24,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:54:24,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:54:24,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:54:24,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:54:24,505 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:54:24,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:54:24,506 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:54:24,506 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 22:54:24,766 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:54:24,779 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:54:24,782 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:54:24,783 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:54:24,784 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:54:24,784 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2019-10-13 22:54:24,847 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1521b93e7/84eb1d0cdaf44bf09309907ff76c50e1/FLAGc1b7fdd55 [2019-10-13 22:54:25,598 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:54:25,599 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2019-10-13 22:54:25,640 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1521b93e7/84eb1d0cdaf44bf09309907ff76c50e1/FLAGc1b7fdd55 [2019-10-13 22:54:25,691 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1521b93e7/84eb1d0cdaf44bf09309907ff76c50e1 [2019-10-13 22:54:25,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:54:25,701 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:54:25,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:54:25,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:54:25,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:54:25,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:54:25" (1/1) ... [2019-10-13 22:54:25,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65b46624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:25, skipping insertion in model container [2019-10-13 22:54:25,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:54:25" (1/1) ... [2019-10-13 22:54:25,716 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:54:25,818 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:54:26,491 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3493] [2019-10-13 22:54:26,492 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 ) [3495-3496] [2019-10-13 22:54:26,493 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 ) [3497-3499] [2019-10-13 22:54:26,493 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 ) [3500-3501] [2019-10-13 22:54:26,494 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3502] [2019-10-13 22:54:26,495 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 * ) [3508-3509] [2019-10-13 22:54:26,497 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3510] [2019-10-13 22:54:26,497 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3513] [2019-10-13 22:54:26,511 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name lookup at C: *(*lookup)(struct tty_driver___0 *driver , struct inode___0 *inode , int idx ) [3827-3828] [2019-10-13 22:54:26,512 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name install at C: (*install)(struct tty_driver___0 *driver , struct tty_struct___0 *tty ) [3829] [2019-10-13 22:54:26,512 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name remove at C: (*remove)(struct tty_driver___0 *driver , struct tty_struct___0 *tty ) [3830] [2019-10-13 22:54:26,514 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name poll_init at C: (*poll_init)(struct tty_driver___0 *driver , int line , char *options ) [3861] [2019-10-13 22:54:26,515 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name poll_get_char at C: (*poll_get_char)(struct tty_driver___0 *driver , int line ) [3862] [2019-10-13 22:54:26,516 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name poll_put_char at C: (*poll_put_char)(struct tty_driver___0 *driver , int line , char ch ) [3863] [2019-10-13 22:54:26,519 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3923] [2019-10-13 22:54:26,519 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3924] [2019-10-13 22:54:26,520 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3925] [2019-10-13 22:54:26,520 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3926] [2019-10-13 22:54:26,521 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3927] [2019-10-13 22:54:26,522 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3928] [2019-10-13 22:54:27,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:54:27,183 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:54:27,269 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3493] [2019-10-13 22:54:27,270 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 ) [3495-3496] [2019-10-13 22:54:27,270 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 ) [3497-3499] [2019-10-13 22:54:27,270 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 ) [3500-3501] [2019-10-13 22:54:27,271 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3502] [2019-10-13 22:54:27,271 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 * ) [3508-3509] [2019-10-13 22:54:27,272 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3510] [2019-10-13 22:54:27,273 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3513] [2019-10-13 22:54:27,281 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name lookup at C: *(*lookup)(struct tty_driver___0 *driver , struct inode___0 *inode , int idx ) [3827-3828] [2019-10-13 22:54:27,282 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name install at C: (*install)(struct tty_driver___0 *driver , struct tty_struct___0 *tty ) [3829] [2019-10-13 22:54:27,282 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name remove at C: (*remove)(struct tty_driver___0 *driver , struct tty_struct___0 *tty ) [3830] [2019-10-13 22:54:27,284 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name poll_init at C: (*poll_init)(struct tty_driver___0 *driver , int line , char *options ) [3861] [2019-10-13 22:54:27,286 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name poll_get_char at C: (*poll_get_char)(struct tty_driver___0 *driver , int line ) [3862] [2019-10-13 22:54:27,287 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name poll_put_char at C: (*poll_put_char)(struct tty_driver___0 *driver , int line , char ch ) [3863] [2019-10-13 22:54:27,288 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3923] [2019-10-13 22:54:27,290 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3924] [2019-10-13 22:54:27,290 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3925] [2019-10-13 22:54:27,290 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3926] [2019-10-13 22:54:27,291 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3927] [2019-10-13 22:54:27,291 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3928] [2019-10-13 22:54:27,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:54:27,516 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:54:27,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:27 WrapperNode [2019-10-13 22:54:27,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:54:27,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:54:27,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:54:27,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:54:27,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:27" (1/1) ... [2019-10-13 22:54:27,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:27" (1/1) ... [2019-10-13 22:54:27,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:27" (1/1) ... [2019-10-13 22:54:27,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:27" (1/1) ... [2019-10-13 22:54:27,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:27" (1/1) ... [2019-10-13 22:54:27,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:27" (1/1) ... [2019-10-13 22:54:27,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:27" (1/1) ... [2019-10-13 22:54:27,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:54:27,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:54:27,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:54:27,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:54:27,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:54:27,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:54:27,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:54:27,829 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 22:54:27,829 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2019-10-13 22:54:27,829 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 22:54:27,830 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2019-10-13 22:54:27,830 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2019-10-13 22:54:27,830 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2019-10-13 22:54:27,830 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2019-10-13 22:54:27,830 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2019-10-13 22:54:27,830 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2019-10-13 22:54:27,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 22:54:27,831 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2019-10-13 22:54:27,831 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 22:54:27,831 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 22:54:27,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 22:54:27,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 22:54:27,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 22:54:27,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 22:54:27,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 22:54:27,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 22:54:27,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 22:54:27,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 22:54:27,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 22:54:27,833 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-10-13 22:54:27,833 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2019-10-13 22:54:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2019-10-13 22:54:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2019-10-13 22:54:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2019-10-13 22:54:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-10-13 22:54:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure qcprobe [2019-10-13 22:54:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure qcinit [2019-10-13 22:54:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure qcexit [2019-10-13 22:54:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_serial_driver_1 [2019-10-13 22:54:27,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2019-10-13 22:54:27,836 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:54:27,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_fixed_flag_4 [2019-10-13 22:54:27,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_5 [2019-10-13 22:54:27,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_6 [2019-10-13 22:54:27,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2019-10-13 22:54:27,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 22:54:27,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-10-13 22:54:27,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_got_tty [2019-10-13 22:54:27,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_tty [2019-10-13 22:54:27,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2019-10-13 22:54:27,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 22:54:27,839 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-10-13 22:54:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-13 22:54:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 22:54:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_2 [2019-10-13 22:54:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2019-10-13 22:54:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 22:54:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2019-10-13 22:54:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-13 22:54:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_enable_autosuspend [2019-10-13 22:54:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-13 22:54:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2019-10-13 22:54:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2019-10-13 22:54:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2019-10-13 22:54:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2019-10-13 22:54:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2019-10-13 22:54:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2019-10-13 22:54:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2019-10-13 22:54:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_chars_in_buffer [2019-10-13 22:54:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_close [2019-10-13 22:54:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_disconnect [2019-10-13 22:54:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_open [2019-10-13 22:54:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_release [2019-10-13 22:54:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_resume [2019-10-13 22:54:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_startup [2019-10-13 22:54:27,844 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_suspend [2019-10-13 22:54:27,844 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write [2019-10-13 22:54:27,844 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write_room [2019-10-13 22:54:27,844 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 22:54:27,844 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 22:54:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 22:54:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 22:54:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:54:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 22:54:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 22:54:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 22:54:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2019-10-13 22:54:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2019-10-13 22:54:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 22:54:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 22:54:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2019-10-13 22:54:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-10-13 22:54:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2019-10-13 22:54:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2019-10-13 22:54:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2019-10-13 22:54:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_fixed_flag_4 [2019-10-13 22:54:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_tty [2019-10-13 22:54:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 22:54:27,850 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2019-10-13 22:54:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2019-10-13 22:54:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:54:27,855 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 22:54:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:54:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 22:54:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2019-10-13 22:54:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2019-10-13 22:54:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 22:54:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 22:54:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2019-10-13 22:54:27,864 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2019-10-13 22:54:27,864 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 22:54:27,864 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 22:54:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 22:54:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 22:54:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:54:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 22:54:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 22:54:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:54:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 22:54:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 22:54:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 22:54:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 22:54:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 22:54:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 22:54:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 22:54:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 22:54:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 22:54:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_serial_driver_1 [2019-10-13 22:54:27,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2019-10-13 22:54:27,868 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-10-13 22:54:27,868 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2019-10-13 22:54:27,868 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2019-10-13 22:54:27,868 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2019-10-13 22:54:27,868 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2019-10-13 22:54:27,868 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-13 22:54:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure usb_enable_autosuspend [2019-10-13 22:54:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-13 22:54:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_5 [2019-10-13 22:54:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-10-13 22:54:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-13 22:54:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_6 [2019-10-13 22:54:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2019-10-13 22:54:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2019-10-13 22:54:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2019-10-13 22:54:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2019-10-13 22:54:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2019-10-13 22:54:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2019-10-13 22:54:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2019-10-13 22:54:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_open [2019-10-13 22:54:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_close [2019-10-13 22:54:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_startup [2019-10-13 22:54:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_disconnect [2019-10-13 22:54:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_release [2019-10-13 22:54:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write_room [2019-10-13 22:54:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write [2019-10-13 22:54:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_chars_in_buffer [2019-10-13 22:54:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_suspend [2019-10-13 22:54:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_resume [2019-10-13 22:54:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure qcprobe [2019-10-13 22:54:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 22:54:27,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:54:27,873 INFO L130 BoogieDeclarations]: Found specification of procedure qcinit [2019-10-13 22:54:27,873 INFO L130 BoogieDeclarations]: Found specification of procedure qcexit [2019-10-13 22:54:27,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_2 [2019-10-13 22:54:27,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 22:54:27,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 22:54:27,873 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:54:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 22:54:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2019-10-13 22:54:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-10-13 22:54:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_got_tty [2019-10-13 22:54:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 22:54:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 22:54:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:54:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 22:54:27,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 22:54:27,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:54:27,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:54:29,080 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 22:54:30,139 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2019-10-13 22:54:31,399 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:54:31,400 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 22:54:31,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:54:31 BoogieIcfgContainer [2019-10-13 22:54:31,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:54:31,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:54:31,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:54:31,406 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:54:31,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:54:25" (1/3) ... [2019-10-13 22:54:31,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e03610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:54:31, skipping insertion in model container [2019-10-13 22:54:31,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:27" (2/3) ... [2019-10-13 22:54:31,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e03610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:54:31, skipping insertion in model container [2019-10-13 22:54:31,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:54:31" (3/3) ... [2019-10-13 22:54:31,413 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2019-10-13 22:54:31,423 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:54:31,439 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:54:31,451 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:54:31,492 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:54:31,492 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:54:31,492 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:54:31,493 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:54:31,493 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:54:31,493 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:54:31,493 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:54:31,493 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:54:31,526 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states. [2019-10-13 22:54:31,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-13 22:54:31,554 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:31,555 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2019-10-13 22:54:31,558 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:31,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:31,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1247826698, now seen corresponding path program 1 times [2019-10-13 22:54:31,575 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:31,575 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520042857] [2019-10-13 22:54:31,576 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:31,576 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:31,576 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:32,369 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 22:54:32,370 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520042857] [2019-10-13 22:54:32,371 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:54:32,371 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 22:54:32,372 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455122027] [2019-10-13 22:54:32,378 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 22:54:32,378 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:54:32,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 22:54:32,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 22:54:32,400 INFO L87 Difference]: Start difference. First operand 453 states. Second operand 4 states. [2019-10-13 22:54:32,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:54:32,571 INFO L93 Difference]: Finished difference Result 786 states and 1043 transitions. [2019-10-13 22:54:32,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 22:54:32,573 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 65 [2019-10-13 22:54:32,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:54:32,605 INFO L225 Difference]: With dead ends: 786 [2019-10-13 22:54:32,606 INFO L226 Difference]: Without dead ends: 362 [2019-10-13 22:54:32,618 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:54:32,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2019-10-13 22:54:32,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2019-10-13 22:54:32,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2019-10-13 22:54:32,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 478 transitions. [2019-10-13 22:54:32,726 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 478 transitions. Word has length 65 [2019-10-13 22:54:32,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:54:32,730 INFO L462 AbstractCegarLoop]: Abstraction has 362 states and 478 transitions. [2019-10-13 22:54:32,730 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 22:54:32,730 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 478 transitions. [2019-10-13 22:54:32,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-10-13 22:54:32,746 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:32,747 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2019-10-13 22:54:32,749 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:32,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:32,750 INFO L82 PathProgramCache]: Analyzing trace with hash 924697682, now seen corresponding path program 1 times [2019-10-13 22:54:32,750 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:32,750 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337793742] [2019-10-13 22:54:32,751 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:32,751 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:32,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:33,133 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 22:54:33,134 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337793742] [2019-10-13 22:54:33,134 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673901411] [2019-10-13 22:54:33,134 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 22:54:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:33,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 2871 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 22:54:33,794 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:54:33,858 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 22:54:33,858 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:54:33,970 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 22:54:33,971 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1657040876] [2019-10-13 22:54:33,999 INFO L162 IcfgInterpreter]: Started Sifa with 55 locations of interest [2019-10-13 22:54:34,000 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 22:54:34,006 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 22:54:34,015 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 22:54:34,015 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 22:55:01,827 WARN L191 SmtUtils]: Spent 2.82 s on a formula simplification that was a NOOP. DAG size: 3838