/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_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 0.1.24-6598664 [2019-11-24 03:58:19,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 03:58:19,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 03:58:19,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 03:58:19,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 03:58:19,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 03:58:19,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 03:58:19,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 03:58:19,611 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 03:58:19,613 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 03:58:19,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 03:58:19,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 03:58:19,616 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 03:58:19,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 03:58:19,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 03:58:19,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 03:58:19,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 03:58:19,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 03:58:19,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 03:58:19,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 03:58:19,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 03:58:19,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 03:58:19,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 03:58:19,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 03:58:19,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 03:58:19,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 03:58:19,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 03:58:19,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 03:58:19,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 03:58:19,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 03:58:19,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 03:58:19,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 03:58:19,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 03:58:19,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 03:58:19,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 03:58:19,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 03:58:19,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 03:58:19,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 03:58:19,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 03:58:19,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 03:58:19,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 03:58:19,660 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 03:58:19,676 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 03:58:19,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 03:58:19,677 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 03:58:19,678 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 03:58:19,678 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 03:58:19,678 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 03:58:19,678 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 03:58:19,678 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 03:58:19,679 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 03:58:19,679 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 03:58:19,679 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 03:58:19,679 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 03:58:19,679 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 03:58:19,680 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 03:58:19,680 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 03:58:19,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 03:58:19,681 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 03:58:19,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 03:58:19,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 03:58:19,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 03:58:19,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 03:58:19,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 03:58:19,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 03:58:19,682 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 03:58:19,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 03:58:19,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 03:58:19,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 03:58:19,683 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 03:58:19,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 03:58:19,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 03:58:19,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 03:58:19,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 03:58:19,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 03:58:19,684 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 03:58:19,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 03:58:19,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 03:58:19,685 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 03:58:19,685 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 03:58:19,954 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 03:58:19,967 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 03:58:19,970 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 03:58:19,972 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 03:58:19,972 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 03:58:19,973 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2019-11-24 03:58:20,034 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24ec41a53/28a58e2713464163b1d26437432a55be/FLAG0d4fd3dad [2019-11-24 03:58:20,808 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 03:58:20,809 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2019-11-24 03:58:20,846 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24ec41a53/28a58e2713464163b1d26437432a55be/FLAG0d4fd3dad [2019-11-24 03:58:20,865 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24ec41a53/28a58e2713464163b1d26437432a55be [2019-11-24 03:58:20,873 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 03:58:20,875 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 03:58:20,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 03:58:20,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 03:58:20,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 03:58:20,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 03:58:20" (1/1) ... [2019-11-24 03:58:20,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b83f4c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:20, skipping insertion in model container [2019-11-24 03:58:20,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 03:58:20" (1/1) ... [2019-11-24 03:58:20,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 03:58:20,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 03:58:21,613 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3493] [2019-11-24 03:58:21,614 WARN L1172 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] [2019-11-24 03:58:21,615 WARN L1172 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] [2019-11-24 03:58:21,615 WARN L1172 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] [2019-11-24 03:58:21,616 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3502] [2019-11-24 03:58:21,617 WARN L1172 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] [2019-11-24 03:58:21,619 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3510] [2019-11-24 03:58:21,621 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3513] [2019-11-24 03:58:21,632 WARN L1172 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] [2019-11-24 03:58:21,633 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name install at C: (*install)(struct tty_driver___0 *driver , struct tty_struct___0 *tty ) [3829] [2019-11-24 03:58:21,633 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name remove at C: (*remove)(struct tty_driver___0 *driver , struct tty_struct___0 *tty ) [3830] [2019-11-24 03:58:21,635 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name poll_init at C: (*poll_init)(struct tty_driver___0 *driver , int line , char *options ) [3861] [2019-11-24 03:58:21,636 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name poll_get_char at C: (*poll_get_char)(struct tty_driver___0 *driver , int line ) [3862] [2019-11-24 03:58:21,637 WARN L1172 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] [2019-11-24 03:58:21,640 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3923] [2019-11-24 03:58:21,641 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3924] [2019-11-24 03:58:21,642 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3925] [2019-11-24 03:58:21,642 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3926] [2019-11-24 03:58:21,643 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3927] [2019-11-24 03:58:21,643 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3928] [2019-11-24 03:58:22,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 03:58:22,319 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 03:58:22,426 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3493] [2019-11-24 03:58:22,427 WARN L1172 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] [2019-11-24 03:58:22,428 WARN L1172 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] [2019-11-24 03:58:22,428 WARN L1172 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] [2019-11-24 03:58:22,430 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3502] [2019-11-24 03:58:22,432 WARN L1172 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] [2019-11-24 03:58:22,434 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3510] [2019-11-24 03:58:22,434 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3513] [2019-11-24 03:58:22,443 WARN L1172 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] [2019-11-24 03:58:22,443 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name install at C: (*install)(struct tty_driver___0 *driver , struct tty_struct___0 *tty ) [3829] [2019-11-24 03:58:22,444 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name remove at C: (*remove)(struct tty_driver___0 *driver , struct tty_struct___0 *tty ) [3830] [2019-11-24 03:58:22,445 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name poll_init at C: (*poll_init)(struct tty_driver___0 *driver , int line , char *options ) [3861] [2019-11-24 03:58:22,446 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name poll_get_char at C: (*poll_get_char)(struct tty_driver___0 *driver , int line ) [3862] [2019-11-24 03:58:22,446 WARN L1172 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] [2019-11-24 03:58:22,448 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3923] [2019-11-24 03:58:22,448 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3924] [2019-11-24 03:58:22,449 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3925] [2019-11-24 03:58:22,449 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3926] [2019-11-24 03:58:22,450 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3927] [2019-11-24 03:58:22,450 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3928] [2019-11-24 03:58:22,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 03:58:22,670 INFO L208 MainTranslator]: Completed translation [2019-11-24 03:58:22,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:22 WrapperNode [2019-11-24 03:58:22,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 03:58:22,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 03:58:22,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 03:58:22,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 03:58:22,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:22" (1/1) ... [2019-11-24 03:58:22,757 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:22" (1/1) ... [2019-11-24 03:58:22,932 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 03:58:22,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 03:58:22,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 03:58:22,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 03:58:22,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:22" (1/1) ... [2019-11-24 03:58:22,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:22" (1/1) ... [2019-11-24 03:58:22,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:22" (1/1) ... [2019-11-24 03:58:22,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:22" (1/1) ... [2019-11-24 03:58:23,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:22" (1/1) ... [2019-11-24 03:58:23,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:22" (1/1) ... [2019-11-24 03:58:23,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:22" (1/1) ... [2019-11-24 03:58:23,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 03:58:23,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 03:58:23,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 03:58:23,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 03:58:23,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:22" (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 [2019-11-24 03:58:23,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-24 03:58:23,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 03:58:23,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-24 03:58:23,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-24 03:58:23,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-24 03:58:23,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-24 03:58:23,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 03:58:23,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-24 03:58:23,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 03:58:23,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 03:58:23,207 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2019-11-24 03:58:28,671 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 03:58:28,671 INFO L284 CfgBuilder]: Removed 231 assume(true) statements. [2019-11-24 03:58:28,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 03:58:28 BoogieIcfgContainer [2019-11-24 03:58:28,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 03:58:28,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 03:58:28,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 03:58:28,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 03:58:28,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 03:58:20" (1/3) ... [2019-11-24 03:58:28,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d55399c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 03:58:28, skipping insertion in model container [2019-11-24 03:58:28,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:22" (2/3) ... [2019-11-24 03:58:28,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d55399c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 03:58:28, skipping insertion in model container [2019-11-24 03:58:28,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 03:58:28" (3/3) ... [2019-11-24 03:58:28,681 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2019-11-24 03:58:28,691 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 03:58:28,698 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-24 03:58:28,710 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-24 03:58:28,736 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 03:58:28,736 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 03:58:28,736 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 03:58:28,736 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 03:58:28,737 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 03:58:28,737 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 03:58:28,737 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 03:58:28,737 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 03:58:28,756 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states. [2019-11-24 03:58:28,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-24 03:58:28,763 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 03:58:28,764 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 03:58:28,764 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 03:58:28,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 03:58:28,771 INFO L82 PathProgramCache]: Analyzing trace with hash -691236960, now seen corresponding path program 1 times [2019-11-24 03:58:28,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 03:58:28,781 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117286680] [2019-11-24 03:58:28,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 03:58:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 03:58:29,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 03:58:29,390 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117286680] [2019-11-24 03:58:29,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 03:58:29,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 03:58:29,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326540074] [2019-11-24 03:58:29,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 03:58:29,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 03:58:29,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 03:58:29,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 03:58:29,416 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 3 states. [2019-11-24 03:58:29,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 03:58:29,638 INFO L93 Difference]: Finished difference Result 225 states and 394 transitions. [2019-11-24 03:58:29,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 03:58:29,641 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-24 03:58:29,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 03:58:29,663 INFO L225 Difference]: With dead ends: 225 [2019-11-24 03:58:29,663 INFO L226 Difference]: Without dead ends: 129 [2019-11-24 03:58:29,669 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 03:58:29,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-11-24 03:58:29,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-11-24 03:58:29,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-11-24 03:58:29,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 220 transitions. [2019-11-24 03:58:29,758 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 220 transitions. Word has length 17 [2019-11-24 03:58:29,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 03:58:29,759 INFO L462 AbstractCegarLoop]: Abstraction has 129 states and 220 transitions. [2019-11-24 03:58:29,760 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 03:58:29,760 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 220 transitions. [2019-11-24 03:58:29,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-24 03:58:29,761 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 03:58:29,762 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 03:58:29,762 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 03:58:29,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 03:58:29,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1154683401, now seen corresponding path program 1 times [2019-11-24 03:58:29,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 03:58:29,763 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787693620] [2019-11-24 03:58:29,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 03:58:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 03:58:30,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 03:58:30,027 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787693620] [2019-11-24 03:58:30,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 03:58:30,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 03:58:30,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257657467] [2019-11-24 03:58:30,032 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 03:58:30,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 03:58:30,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 03:58:30,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 03:58:30,034 INFO L87 Difference]: Start difference. First operand 129 states and 220 transitions. Second operand 3 states. [2019-11-24 03:58:30,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 03:58:30,078 INFO L93 Difference]: Finished difference Result 248 states and 425 transitions. [2019-11-24 03:58:30,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 03:58:30,080 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-11-24 03:58:30,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 03:58:30,082 INFO L225 Difference]: With dead ends: 248 [2019-11-24 03:58:30,082 INFO L226 Difference]: Without dead ends: 131 [2019-11-24 03:58:30,084 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 03:58:30,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-11-24 03:58:30,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-11-24 03:58:30,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-11-24 03:58:30,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 222 transitions. [2019-11-24 03:58:30,107 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 222 transitions. Word has length 21 [2019-11-24 03:58:30,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 03:58:30,107 INFO L462 AbstractCegarLoop]: Abstraction has 131 states and 222 transitions. [2019-11-24 03:58:30,107 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 03:58:30,107 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 222 transitions. [2019-11-24 03:58:30,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-24 03:58:30,108 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 03:58:30,109 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 03:58:30,110 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 03:58:30,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 03:58:30,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1779368985, now seen corresponding path program 1 times [2019-11-24 03:58:30,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 03:58:30,111 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50548536] [2019-11-24 03:58:30,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 03:58:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 03:58:30,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-24 03:58:30,326 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50548536] [2019-11-24 03:58:30,326 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71505520] [2019-11-24 03:58:30,326 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 [2019-11-24 03:58:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 03:58:30,923 INFO L255 TraceCheckSpWp]: Trace formula consists of 2232 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-24 03:58:30,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 03:58:30,975 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-24 03:58:30,975 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 03:58:31,005 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-24 03:58:31,005 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1430887736] [2019-11-24 03:58:31,031 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2019-11-24 03:58:31,031 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 03:58:31,037 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 03:58:31,044 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 03:58:31,045 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 03:59:05,483 WARN L192 SmtUtils]: Spent 2.59 s on a formula simplification that was a NOOP. DAG size: 3885 [2019-11-24 03:59:17,976 WARN L192 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 265 DAG size of output: 215 [2019-11-24 03:59:19,901 WARN L192 SmtUtils]: Spent 1.91 s on a formula simplification that was a NOOP. DAG size: 3923 [2019-11-24 03:59:46,060 WARN L192 SmtUtils]: Spent 12.66 s on a formula simplification that was a NOOP. DAG size: 1771 [2019-11-24 03:59:54,065 WARN L192 SmtUtils]: Spent 7.84 s on a formula simplification that was a NOOP. DAG size: 5563