/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-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 03:58:11,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 03:58:11,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 03:58:11,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 03:58:11,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 03:58:11,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 03:58:11,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 03:58:11,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 03:58:11,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 03:58:11,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 03:58:11,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 03:58:11,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 03:58:11,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 03:58:11,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 03:58:11,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 03:58:11,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 03:58:11,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 03:58:11,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 03:58:11,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 03:58:11,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 03:58:11,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 03:58:11,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 03:58:11,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 03:58:11,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 03:58:11,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 03:58:11,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 03:58:11,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 03:58:11,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 03:58:11,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 03:58:11,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 03:58:11,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 03:58:11,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 03:58:11,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 03:58:11,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 03:58:11,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 03:58:11,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 03:58:11,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 03:58:11,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 03:58:11,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 03:58:11,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 03:58:11,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 03:58:11,432 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 03:58:11,454 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 03:58:11,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 03:58:11,456 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 03:58:11,456 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 03:58:11,457 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 03:58:11,457 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 03:58:11,457 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 03:58:11,458 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 03:58:11,458 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 03:58:11,458 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 03:58:11,459 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 03:58:11,459 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 03:58:11,460 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 03:58:11,460 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 03:58:11,460 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 03:58:11,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 03:58:11,462 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 03:58:11,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 03:58:11,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 03:58:11,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 03:58:11,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 03:58:11,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 03:58:11,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 03:58:11,465 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 03:58:11,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 03:58:11,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 03:58:11,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 03:58:11,466 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 03:58:11,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 03:58:11,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 03:58:11,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 03:58:11,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 03:58:11,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 03:58:11,468 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 03:58:11,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 03:58:11,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 03:58:11,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 03:58:11,469 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 03:58:11,763 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 03:58:11,782 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 03:58:11,787 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 03:58:11,788 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 03:58:11,788 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 03:58:11,789 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i [2019-11-24 03:58:11,846 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85581d584/104b11f75a89477980dbd3adca5548cc/FLAGc8deff677 [2019-11-24 03:58:12,650 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 03:58:12,651 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i [2019-11-24 03:58:12,699 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85581d584/104b11f75a89477980dbd3adca5548cc/FLAGc8deff677 [2019-11-24 03:58:13,213 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85581d584/104b11f75a89477980dbd3adca5548cc [2019-11-24 03:58:13,222 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 03:58:13,224 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 03:58:13,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 03:58:13,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 03:58:13,228 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 03:58:13,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 03:58:13" (1/1) ... [2019-11-24 03:58:13,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c84bf4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:13, skipping insertion in model container [2019-11-24 03:58:13,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 03:58:13" (1/1) ... [2019-11-24 03:58:13,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 03:58:13,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 03:58:13,990 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3496] [2019-11-24 03:58:13,992 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 ) [3498-3499] [2019-11-24 03:58:13,992 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 ) [3500-3502] [2019-11-24 03:58:13,993 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 ) [3503-3504] [2019-11-24 03:58:13,993 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3505] [2019-11-24 03:58:13,995 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 * ) [3511-3512] [2019-11-24 03:58:13,996 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3513] [2019-11-24 03:58:13,996 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3516] [2019-11-24 03:58:14,012 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3929] [2019-11-24 03:58:14,013 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3930] [2019-11-24 03:58:14,013 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3931] [2019-11-24 03:58:14,014 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3932] [2019-11-24 03:58:14,014 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3933] [2019-11-24 03:58:14,016 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3934] [2019-11-24 03:58:15,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 03:58:15,042 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 03:58:15,140 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3496] [2019-11-24 03:58:15,140 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 ) [3498-3499] [2019-11-24 03:58:15,141 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 ) [3500-3502] [2019-11-24 03:58:15,141 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 ) [3503-3504] [2019-11-24 03:58:15,142 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3505] [2019-11-24 03:58:15,142 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 * ) [3511-3512] [2019-11-24 03:58:15,143 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3513] [2019-11-24 03:58:15,143 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3516] [2019-11-24 03:58:15,153 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3929] [2019-11-24 03:58:15,154 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3930] [2019-11-24 03:58:15,154 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3931] [2019-11-24 03:58:15,154 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3932] [2019-11-24 03:58:15,155 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3933] [2019-11-24 03:58:15,155 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3934] [2019-11-24 03:58:15,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 03:58:15,542 INFO L208 MainTranslator]: Completed translation [2019-11-24 03:58:15,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:15 WrapperNode [2019-11-24 03:58:15,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 03:58:15,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 03:58:15,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 03:58:15,545 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 03:58:15,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:15" (1/1) ... [2019-11-24 03:58:15,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:15" (1/1) ... [2019-11-24 03:58:15,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 03:58:15,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 03:58:15,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 03:58:15,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 03:58:15,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:15" (1/1) ... [2019-11-24 03:58:15,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:15" (1/1) ... [2019-11-24 03:58:15,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:15" (1/1) ... [2019-11-24 03:58:15,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:15" (1/1) ... [2019-11-24 03:58:16,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:15" (1/1) ... [2019-11-24 03:58:16,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:15" (1/1) ... [2019-11-24 03:58:16,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:15" (1/1) ... [2019-11-24 03:58:16,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 03:58:16,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 03:58:16,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 03:58:16,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 03:58:16,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:15" (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 03:58:16,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-11-24 03:58:16,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-24 03:58:16,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-24 03:58:16,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-24 03:58:16,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-24 03:58:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-24 03:58:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2019-11-24 03:58:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-24 03:58:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 03:58:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-24 03:58:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-24 03:58:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-24 03:58:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 03:58:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-11-24 03:58:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 03:58:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 03:59:05,713 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 03:59:05,713 INFO L284 CfgBuilder]: Removed 1309 assume(true) statements. [2019-11-24 03:59:05,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 03:59:05 BoogieIcfgContainer [2019-11-24 03:59:05,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 03:59:05,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 03:59:05,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 03:59:05,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 03:59:05,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 03:58:13" (1/3) ... [2019-11-24 03:59:05,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea62a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 03:59:05, skipping insertion in model container [2019-11-24 03:59:05,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:58:15" (2/3) ... [2019-11-24 03:59:05,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea62a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 03:59:05, skipping insertion in model container [2019-11-24 03:59:05,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 03:59:05" (3/3) ... [2019-11-24 03:59:05,722 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i [2019-11-24 03:59:05,732 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 03:59:05,741 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2019-11-24 03:59:05,752 INFO L249 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2019-11-24 03:59:05,781 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 03:59:05,781 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 03:59:05,782 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 03:59:05,782 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 03:59:05,782 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 03:59:05,782 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 03:59:05,782 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 03:59:05,782 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 03:59:05,808 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states. [2019-11-24 03:59:05,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-24 03:59:05,816 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 03:59:05,817 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 03:59:05,818 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 03:59:05,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 03:59:05,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1428046998, now seen corresponding path program 1 times [2019-11-24 03:59:05,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 03:59:05,833 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878812310] [2019-11-24 03:59:05,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 03:59:06,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 03:59:06,422 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 03:59:06,423 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878812310] [2019-11-24 03:59:06,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 03:59:06,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 03:59:06,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991572334] [2019-11-24 03:59:06,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 03:59:06,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 03:59:06,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 03:59:06,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 03:59:06,447 INFO L87 Difference]: Start difference. First operand 472 states. Second operand 3 states. [2019-11-24 03:59:08,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 03:59:08,945 INFO L93 Difference]: Finished difference Result 734 states and 1169 transitions. [2019-11-24 03:59:08,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 03:59:08,947 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-11-24 03:59:08,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 03:59:08,962 INFO L225 Difference]: With dead ends: 734 [2019-11-24 03:59:08,962 INFO L226 Difference]: Without dead ends: 265 [2019-11-24 03:59:08,967 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 03:59:08,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2019-11-24 03:59:09,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2019-11-24 03:59:09,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2019-11-24 03:59:09,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 385 transitions. [2019-11-24 03:59:09,025 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 385 transitions. Word has length 21 [2019-11-24 03:59:09,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 03:59:09,026 INFO L462 AbstractCegarLoop]: Abstraction has 265 states and 385 transitions. [2019-11-24 03:59:09,026 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 03:59:09,026 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 385 transitions. [2019-11-24 03:59:09,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-24 03:59:09,028 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 03:59:09,029 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-24 03:59:09,029 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 03:59:09,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 03:59:09,030 INFO L82 PathProgramCache]: Analyzing trace with hash 139490852, now seen corresponding path program 1 times [2019-11-24 03:59:09,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 03:59:09,030 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268977386] [2019-11-24 03:59:09,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 03:59:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 03:59:09,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 03:59:09,205 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268977386] [2019-11-24 03:59:09,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 03:59:09,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 03:59:09,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528713255] [2019-11-24 03:59:09,208 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 03:59:09,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 03:59:09,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 03:59:09,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 03:59:09,209 INFO L87 Difference]: Start difference. First operand 265 states and 385 transitions. Second operand 3 states. [2019-11-24 03:59:13,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 03:59:13,538 INFO L93 Difference]: Finished difference Result 577 states and 860 transitions. [2019-11-24 03:59:13,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 03:59:13,539 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2019-11-24 03:59:13,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 03:59:13,545 INFO L225 Difference]: With dead ends: 577 [2019-11-24 03:59:13,545 INFO L226 Difference]: Without dead ends: 326 [2019-11-24 03:59:13,550 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 03:59:13,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2019-11-24 03:59:13,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2019-11-24 03:59:13,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2019-11-24 03:59:13,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 475 transitions. [2019-11-24 03:59:13,605 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 475 transitions. Word has length 41 [2019-11-24 03:59:13,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 03:59:13,606 INFO L462 AbstractCegarLoop]: Abstraction has 326 states and 475 transitions. [2019-11-24 03:59:13,609 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 03:59:13,609 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 475 transitions. [2019-11-24 03:59:13,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-24 03:59:13,613 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 03:59:13,614 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-24 03:59:13,614 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 03:59:13,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 03:59:13,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1220001280, now seen corresponding path program 1 times [2019-11-24 03:59:13,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 03:59:13,615 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145929172] [2019-11-24 03:59:13,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 03:59:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 03:59:14,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 03:59:14,119 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145929172] [2019-11-24 03:59:14,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 03:59:14,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-24 03:59:14,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666711419] [2019-11-24 03:59:14,121 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-24 03:59:14,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 03:59:14,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-24 03:59:14,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-24 03:59:14,122 INFO L87 Difference]: Start difference. First operand 326 states and 475 transitions. Second operand 7 states.