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 -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 19:10:06,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:10:06,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:10:06,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:10:06,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:10:06,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:10:06,465 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:10:06,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:10:06,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:10:06,469 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:10:06,470 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:10:06,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:10:06,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:10:06,472 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:10:06,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:10:06,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:10:06,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:10:06,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:10:06,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:10:06,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:10:06,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:10:06,482 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:10:06,483 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:10:06,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:10:06,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:10:06,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:10:06,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:10:06,488 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:10:06,488 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:10:06,489 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:10:06,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:10:06,490 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:10:06,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:10:06,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:10:06,493 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:10:06,493 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:10:06,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:10:06,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:10:06,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:10:06,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:10:06,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:10:06,498 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 19:10:06,521 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:10:06,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:10:06,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:10:06,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:10:06,525 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:10:06,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:10:06,526 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:10:06,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:10:06,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:10:06,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:10:06,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:10:06,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:10:06,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:10:06,528 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:10:06,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:10:06,528 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:10:06,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:10:06,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:10:06,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:10:06,529 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:10:06,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:10:06,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:10:06,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:10:06,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:10:06,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:10:06,531 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:10:06,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:10:06,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:10:06,531 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:10:06,794 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:10:06,807 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:10:06,810 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:10:06,811 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:10:06,812 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:10:06,812 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2019-10-13 19:10:06,870 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40c01f7d0/61da0b63e05a4c1d8802823a577ebe7a/FLAG619eff152 [2019-10-13 19:10:07,612 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:10:07,612 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2019-10-13 19:10:07,641 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40c01f7d0/61da0b63e05a4c1d8802823a577ebe7a/FLAG619eff152 [2019-10-13 19:10:07,695 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40c01f7d0/61da0b63e05a4c1d8802823a577ebe7a [2019-10-13 19:10:07,704 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:10:07,706 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:10:07,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:10:07,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:10:07,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:10:07,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:10:07" (1/1) ... [2019-10-13 19:10:07,714 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6952a129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:07, skipping insertion in model container [2019-10-13 19:10:07,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:10:07" (1/1) ... [2019-10-13 19:10:07,721 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:10:07,827 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:10:08,387 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 19:10:08,388 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 19:10:08,388 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 19:10:08,388 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 19:10:08,390 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3502] [2019-10-13 19:10:08,393 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 19:10:08,393 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 19:10:08,394 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 19:10:08,409 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 19:10:08,413 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 19:10:08,413 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 19:10:08,417 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 19:10:08,418 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 19:10:08,418 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 19:10:08,420 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 19:10:08,421 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 19:10:08,421 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3925] [2019-10-13 19:10:08,421 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3926] [2019-10-13 19:10:08,422 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 19:10:08,422 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3928] [2019-10-13 19:10:09,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:10:09,323 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:10:09,422 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 19:10:09,422 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 19:10:09,423 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 19:10:09,423 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 19:10:09,423 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3502] [2019-10-13 19:10:09,424 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 19:10:09,424 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 19:10:09,425 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 19:10:09,432 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 19:10:09,433 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 19:10:09,433 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 19:10:09,435 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 19:10:09,437 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 19:10:09,437 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 19:10:09,439 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 19:10:09,441 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 19:10:09,441 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3925] [2019-10-13 19:10:09,442 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3926] [2019-10-13 19:10:09,442 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 19:10:09,443 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3928] [2019-10-13 19:10:09,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:10:09,629 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:10:09,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:09 WrapperNode [2019-10-13 19:10:09,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:10:09,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:10:09,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:10:09,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:10:09,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:09" (1/1) ... [2019-10-13 19:10:09,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:09" (1/1) ... [2019-10-13 19:10:09,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:09" (1/1) ... [2019-10-13 19:10:09,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:09" (1/1) ... [2019-10-13 19:10:09,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:09" (1/1) ... [2019-10-13 19:10:09,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:09" (1/1) ... [2019-10-13 19:10:09,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:09" (1/1) ... [2019-10-13 19:10:09,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:10:09,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:10:09,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:10:09,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:10:09,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:09" (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 19:10:09,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:10:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:10:09,994 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 19:10:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2019-10-13 19:10:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 19:10:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2019-10-13 19:10:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2019-10-13 19:10:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2019-10-13 19:10:09,995 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2019-10-13 19:10:09,995 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2019-10-13 19:10:09,995 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2019-10-13 19:10:09,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 19:10:09,995 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2019-10-13 19:10:09,995 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 19:10:09,995 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 19:10:09,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 19:10:09,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 19:10:09,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 19:10:09,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 19:10:09,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 19:10:09,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 19:10:09,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 19:10:09,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 19:10:09,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 19:10:09,997 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-10-13 19:10:09,998 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2019-10-13 19:10:09,998 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2019-10-13 19:10:09,998 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2019-10-13 19:10:09,999 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2019-10-13 19:10:09,999 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-10-13 19:10:09,999 INFO L138 BoogieDeclarations]: Found implementation of procedure qcprobe [2019-10-13 19:10:09,999 INFO L138 BoogieDeclarations]: Found implementation of procedure qcinit [2019-10-13 19:10:09,999 INFO L138 BoogieDeclarations]: Found implementation of procedure qcexit [2019-10-13 19:10:09,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_serial_driver_1 [2019-10-13 19:10:10,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2019-10-13 19:10:10,000 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:10:10,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_fixed_flag_4 [2019-10-13 19:10:10,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_5 [2019-10-13 19:10:10,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_6 [2019-10-13 19:10:10,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2019-10-13 19:10:10,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 19:10:10,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-10-13 19:10:10,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_got_tty [2019-10-13 19:10:10,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_tty [2019-10-13 19:10:10,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2019-10-13 19:10:10,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 19:10:10,002 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-10-13 19:10:10,003 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-13 19:10:10,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 19:10:10,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_2 [2019-10-13 19:10:10,004 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2019-10-13 19:10:10,004 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 19:10:10,004 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2019-10-13 19:10:10,004 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-13 19:10:10,005 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_enable_autosuspend [2019-10-13 19:10:10,005 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-13 19:10:10,005 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2019-10-13 19:10:10,005 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2019-10-13 19:10:10,005 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2019-10-13 19:10:10,005 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2019-10-13 19:10:10,006 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2019-10-13 19:10:10,006 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2019-10-13 19:10:10,006 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2019-10-13 19:10:10,006 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_chars_in_buffer [2019-10-13 19:10:10,006 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_close [2019-10-13 19:10:10,006 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_disconnect [2019-10-13 19:10:10,006 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_open [2019-10-13 19:10:10,007 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_release [2019-10-13 19:10:10,007 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_resume [2019-10-13 19:10:10,007 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_startup [2019-10-13 19:10:10,007 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_suspend [2019-10-13 19:10:10,007 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write [2019-10-13 19:10:10,007 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write_room [2019-10-13 19:10:10,007 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 19:10:10,008 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 19:10:10,008 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 19:10:10,008 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 19:10:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:10:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 19:10:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 19:10:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 19:10:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2019-10-13 19:10:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2019-10-13 19:10:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 19:10:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 19:10:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2019-10-13 19:10:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-10-13 19:10:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2019-10-13 19:10:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2019-10-13 19:10:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2019-10-13 19:10:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_fixed_flag_4 [2019-10-13 19:10:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_tty [2019-10-13 19:10:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 19:10:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2019-10-13 19:10:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2019-10-13 19:10:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:10:10,013 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 19:10:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:10:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:10:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2019-10-13 19:10:10,017 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2019-10-13 19:10:10,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 19:10:10,018 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 19:10:10,018 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2019-10-13 19:10:10,023 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2019-10-13 19:10:10,024 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 19:10:10,024 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 19:10:10,024 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:10:10,024 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 19:10:10,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:10:10,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 19:10:10,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 19:10:10,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 19:10:10,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:10:10,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 19:10:10,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 19:10:10,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 19:10:10,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 19:10:10,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 19:10:10,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 19:10:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 19:10:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 19:10:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_serial_driver_1 [2019-10-13 19:10:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2019-10-13 19:10:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-10-13 19:10:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2019-10-13 19:10:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2019-10-13 19:10:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2019-10-13 19:10:10,029 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2019-10-13 19:10:10,029 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-13 19:10:10,029 INFO L130 BoogieDeclarations]: Found specification of procedure usb_enable_autosuspend [2019-10-13 19:10:10,029 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-13 19:10:10,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_5 [2019-10-13 19:10:10,029 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-10-13 19:10:10,029 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-13 19:10:10,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_6 [2019-10-13 19:10:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2019-10-13 19:10:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2019-10-13 19:10:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2019-10-13 19:10:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2019-10-13 19:10:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2019-10-13 19:10:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2019-10-13 19:10:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2019-10-13 19:10:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_open [2019-10-13 19:10:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_close [2019-10-13 19:10:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_startup [2019-10-13 19:10:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_disconnect [2019-10-13 19:10:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_release [2019-10-13 19:10:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write_room [2019-10-13 19:10:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write [2019-10-13 19:10:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_chars_in_buffer [2019-10-13 19:10:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_suspend [2019-10-13 19:10:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_resume [2019-10-13 19:10:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure qcprobe [2019-10-13 19:10:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:10:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:10:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure qcinit [2019-10-13 19:10:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure qcexit [2019-10-13 19:10:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_2 [2019-10-13 19:10:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 19:10:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 19:10:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:10:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 19:10:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2019-10-13 19:10:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-10-13 19:10:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_got_tty [2019-10-13 19:10:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 19:10:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:10:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:10:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:10:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 19:10:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:10:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:10:11,079 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 19:10:12,061 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2019-10-13 19:10:12,098 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:10:12,098 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 19:10:12,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:10:12 BoogieIcfgContainer [2019-10-13 19:10:12,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:10:12,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:10:12,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:10:12,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:10:12,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:10:07" (1/3) ... [2019-10-13 19:10:12,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758aa2d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:10:12, skipping insertion in model container [2019-10-13 19:10:12,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:09" (2/3) ... [2019-10-13 19:10:12,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758aa2d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:10:12, skipping insertion in model container [2019-10-13 19:10:12,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:10:12" (3/3) ... [2019-10-13 19:10:12,107 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2019-10-13 19:10:12,116 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:10:12,125 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:10:12,136 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:10:12,168 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:10:12,168 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:10:12,168 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:10:12,168 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:10:12,168 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:10:12,169 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:10:12,169 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:10:12,169 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:10:12,207 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states. [2019-10-13 19:10:12,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-13 19:10:12,234 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:10:12,240 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, 1, 1, 1] [2019-10-13 19:10:12,242 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:10:12,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:10:12,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1869792751, now seen corresponding path program 1 times [2019-10-13 19:10:12,258 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:10:12,259 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822424067] [2019-10-13 19:10:12,259 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:10:12,260 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:10:12,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:10:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:13,673 WARN L191 SmtUtils]: Spent 688.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2019-10-13 19:10:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:13,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:13,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:13,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:13,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:13,985 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 19:10:13,986 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822424067] [2019-10-13 19:10:13,986 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:10:13,987 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:10:13,987 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235849603] [2019-10-13 19:10:13,991 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:10:13,992 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:10:14,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:10:14,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:10:14,008 INFO L87 Difference]: Start difference. First operand 566 states. Second operand 9 states. [2019-10-13 19:10:14,721 WARN L191 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2019-10-13 19:10:16,258 WARN L191 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2019-10-13 19:10:16,914 WARN L191 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2019-10-13 19:10:21,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:10:21,786 INFO L93 Difference]: Finished difference Result 1014 states and 1364 transitions. [2019-10-13 19:10:21,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:10:21,792 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2019-10-13 19:10:21,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:10:21,810 INFO L225 Difference]: With dead ends: 1014 [2019-10-13 19:10:21,810 INFO L226 Difference]: Without dead ends: 480 [2019-10-13 19:10:21,819 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:10:21,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2019-10-13 19:10:21,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 436. [2019-10-13 19:10:21,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 436 states. [2019-10-13 19:10:21,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 577 transitions. [2019-10-13 19:10:21,970 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 577 transitions. Word has length 70 [2019-10-13 19:10:21,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:10:21,971 INFO L462 AbstractCegarLoop]: Abstraction has 436 states and 577 transitions. [2019-10-13 19:10:21,971 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:10:21,971 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 577 transitions. [2019-10-13 19:10:21,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-13 19:10:21,983 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:10:21,983 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 19:10:21,983 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:10:21,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:10:21,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1702084221, now seen corresponding path program 1 times [2019-10-13 19:10:21,984 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:10:21,984 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160428089] [2019-10-13 19:10:21,985 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:10:21,985 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:10:21,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:10:22,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:22,806 WARN L191 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2019-10-13 19:10:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:22,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:23,047 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 19:10:23,047 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160428089] [2019-10-13 19:10:23,047 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24091235] [2019-10-13 19:10:23,048 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 19:10:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:23,646 INFO L256 TraceCheckSpWp]: Trace formula consists of 2874 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 19:10:23,655 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:10:23,680 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 19:10:23,681 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-13 19:10:23,681 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 10 [2019-10-13 19:10:23,681 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091722344] [2019-10-13 19:10:23,683 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:10:23,683 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:10:23,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:10:23,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:10:23,684 INFO L87 Difference]: Start difference. First operand 436 states and 577 transitions. Second operand 10 states. [2019-10-13 19:10:24,273 WARN L191 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2019-10-13 19:10:25,855 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2019-10-13 19:10:26,389 WARN L191 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2019-10-13 19:10:26,951 WARN L191 SmtUtils]: Spent 524.00 ms on a formula simplification that was a NOOP. DAG size: 309 [2019-10-13 19:10:31,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:10:31,810 INFO L93 Difference]: Finished difference Result 896 states and 1195 transitions. [2019-10-13 19:10:31,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 19:10:31,810 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2019-10-13 19:10:31,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:10:31,819 INFO L225 Difference]: With dead ends: 896 [2019-10-13 19:10:31,820 INFO L226 Difference]: Without dead ends: 481 [2019-10-13 19:10:31,824 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2019-10-13 19:10:31,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2019-10-13 19:10:31,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 437. [2019-10-13 19:10:31,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2019-10-13 19:10:31,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 578 transitions. [2019-10-13 19:10:31,911 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 578 transitions. Word has length 72 [2019-10-13 19:10:31,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:10:31,912 INFO L462 AbstractCegarLoop]: Abstraction has 437 states and 578 transitions. [2019-10-13 19:10:31,912 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:10:31,912 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 578 transitions. [2019-10-13 19:10:31,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-10-13 19:10:31,914 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:10:31,914 INFO L380 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1] [2019-10-13 19:10:32,121 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:10:32,122 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:10:32,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:10:32,122 INFO L82 PathProgramCache]: Analyzing trace with hash -231826991, now seen corresponding path program 2 times [2019-10-13 19:10:32,122 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:10:32,123 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110019367] [2019-10-13 19:10:32,123 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:10:32,123 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:10:32,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:10:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:32,801 WARN L191 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2019-10-13 19:10:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:32,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:33,102 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 19:10:33,102 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110019367] [2019-10-13 19:10:33,103 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644955926] [2019-10-13 19:10:33,103 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:10:33,758 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-13 19:10:33,759 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-13 19:10:33,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 2886 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-13 19:10:33,779 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:10:33,791 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-13 19:10:33,791 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-13 19:10:33,792 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6] total 11 [2019-10-13 19:10:33,792 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080348071] [2019-10-13 19:10:33,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:10:33,793 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:10:33,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:10:33,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:10:33,794 INFO L87 Difference]: Start difference. First operand 437 states and 578 transitions. Second operand 11 states. [2019-10-13 19:10:34,352 WARN L191 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2019-10-13 19:10:35,933 WARN L191 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2019-10-13 19:10:36,528 WARN L191 SmtUtils]: Spent 552.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2019-10-13 19:10:37,087 WARN L191 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2019-10-13 19:10:37,651 WARN L191 SmtUtils]: Spent 524.00 ms on a formula simplification that was a NOOP. DAG size: 309 [2019-10-13 19:10:42,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:10:42,513 INFO L93 Difference]: Finished difference Result 898 states and 1197 transitions. [2019-10-13 19:10:42,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-13 19:10:42,514 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 74 [2019-10-13 19:10:42,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:10:42,518 INFO L225 Difference]: With dead ends: 898 [2019-10-13 19:10:42,519 INFO L226 Difference]: Without dead ends: 482 [2019-10-13 19:10:42,520 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2019-10-13 19:10:42,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2019-10-13 19:10:42,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 438. [2019-10-13 19:10:42,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2019-10-13 19:10:42,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 579 transitions. [2019-10-13 19:10:42,581 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 579 transitions. Word has length 74 [2019-10-13 19:10:42,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:10:42,582 INFO L462 AbstractCegarLoop]: Abstraction has 438 states and 579 transitions. [2019-10-13 19:10:42,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:10:42,582 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 579 transitions. [2019-10-13 19:10:42,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-13 19:10:42,584 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:10:42,584 INFO L380 BasicCegarLoop]: trace histogram [6, 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, 1, 1, 1] [2019-10-13 19:10:42,792 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:10:42,793 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:10:42,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:10:42,795 INFO L82 PathProgramCache]: Analyzing trace with hash -793482435, now seen corresponding path program 3 times [2019-10-13 19:10:42,795 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:10:42,796 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4874809] [2019-10-13 19:10:42,796 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:10:42,796 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:10:42,796 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:10:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:43,579 WARN L191 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2019-10-13 19:10:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:43,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:43,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:43,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:43,874 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 19:10:43,874 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4874809] [2019-10-13 19:10:43,875 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634850640] [2019-10-13 19:10:43,875 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:10:44,580 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-10-13 19:10:44,581 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-13 19:10:44,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 2892 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 19:10:44,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:10:44,604 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 19:10:44,605 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-13 19:10:44,605 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7] total 12 [2019-10-13 19:10:44,605 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684985320] [2019-10-13 19:10:44,606 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:10:44,606 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:10:44,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:10:44,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:10:44,607 INFO L87 Difference]: Start difference. First operand 438 states and 579 transitions. Second operand 12 states. [2019-10-13 19:10:45,159 WARN L191 SmtUtils]: Spent 517.00 ms on a formula simplification that was a NOOP. DAG size: 313