/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:33:38,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:33:38,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:33:38,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:33:38,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:33:38,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:33:38,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:33:38,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:33:38,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:33:38,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:33:38,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:33:38,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:33:38,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:33:38,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:33:38,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:33:38,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:33:38,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:33:38,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:33:38,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:33:38,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:33:38,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:33:38,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:33:38,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:33:38,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:33:38,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:33:38,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:33:38,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:33:38,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:33:38,650 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:33:38,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:33:38,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:33:38,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:33:38,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:33:38,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:33:38,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:33:38,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:33:38,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:33:38,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:33:38,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:33:38,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:33:38,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:33:38,659 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:33:38,687 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:33:38,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:33:38,688 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:33:38,688 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:33:38,689 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:33:38,689 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:33:38,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:33:38,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:33:38,691 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:33:38,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:33:38,691 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:33:38,691 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:33:38,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:33:38,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:33:38,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:33:38,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:33:38,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:33:38,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:33:38,693 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:33:38,693 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:33:38,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:33:38,693 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:33:38,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:33:38,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:33:38,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:33:38,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:33:38,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:33:38,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:33:38,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:33:38,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:33:38,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:33:38,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:33:38,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:33:38,696 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:33:39,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:33:39,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:33:39,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:33:39,106 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:33:39,107 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:33:39,108 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i [2022-10-15 21:33:39,188 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68ba2ce0b/096a2846a6d74b7fad2d7b7adecfa9a2/FLAG76458f25e [2022-10-15 21:33:40,086 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:33:40,087 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i [2022-10-15 21:33:40,122 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68ba2ce0b/096a2846a6d74b7fad2d7b7adecfa9a2/FLAG76458f25e [2022-10-15 21:33:40,644 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68ba2ce0b/096a2846a6d74b7fad2d7b7adecfa9a2 [2022-10-15 21:33:40,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:33:40,655 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:33:40,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:33:40,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:33:40,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:33:40,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:33:40" (1/1) ... [2022-10-15 21:33:40,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18f317d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:40, skipping insertion in model container [2022-10-15 21:33:40,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:33:40" (1/1) ... [2022-10-15 21:33:40,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:33:40,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:33:41,399 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3507] [2022-10-15 21:33:41,400 WARN L1251 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 ) [3509-3510] [2022-10-15 21:33:41,401 WARN L1251 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 ) [3511-3513] [2022-10-15 21:33:41,401 WARN L1251 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 ) [3514-3515] [2022-10-15 21:33:41,402 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3516] [2022-10-15 21:33:41,402 WARN L1251 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 * ) [3522-3523] [2022-10-15 21:33:41,403 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3524] [2022-10-15 21:33:41,403 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3527] [2022-10-15 21:33:41,415 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3940] [2022-10-15 21:33:41,416 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3941] [2022-10-15 21:33:41,416 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3942] [2022-10-15 21:33:41,417 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3943] [2022-10-15 21:33:41,417 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3944] [2022-10-15 21:33:41,417 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3945] [2022-10-15 21:33:41,717 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i[130795,130808] [2022-10-15 21:33:42,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:33:42,304 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:33:42,504 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3507] [2022-10-15 21:33:42,507 WARN L1251 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 ) [3509-3510] [2022-10-15 21:33:42,508 WARN L1251 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 ) [3511-3513] [2022-10-15 21:33:42,509 WARN L1251 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 ) [3514-3515] [2022-10-15 21:33:42,509 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3516] [2022-10-15 21:33:42,512 WARN L1251 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 * ) [3522-3523] [2022-10-15 21:33:42,514 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3524] [2022-10-15 21:33:42,514 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3527] [2022-10-15 21:33:42,527 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3940] [2022-10-15 21:33:42,528 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3941] [2022-10-15 21:33:42,528 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3942] [2022-10-15 21:33:42,529 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3943] [2022-10-15 21:33:42,530 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3944] [2022-10-15 21:33:42,530 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3945] [2022-10-15 21:33:42,566 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i[130795,130808] [2022-10-15 21:33:42,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:33:43,010 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:33:43,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43 WrapperNode [2022-10-15 21:33:43,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:33:43,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:33:43,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:33:43,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:33:43,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (1/1) ... [2022-10-15 21:33:43,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (1/1) ... [2022-10-15 21:33:43,339 INFO L138 Inliner]: procedures = 124, calls = 768, calls flagged for inlining = 62, calls inlined = 62, statements flattened = 2159 [2022-10-15 21:33:43,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:33:43,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:33:43,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:33:43,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:33:43,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (1/1) ... [2022-10-15 21:33:43,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (1/1) ... [2022-10-15 21:33:43,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (1/1) ... [2022-10-15 21:33:43,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (1/1) ... [2022-10-15 21:33:43,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (1/1) ... [2022-10-15 21:33:43,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (1/1) ... [2022-10-15 21:33:43,504 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (1/1) ... [2022-10-15 21:33:43,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (1/1) ... [2022-10-15 21:33:43,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:33:43,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:33:43,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:33:43,556 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:33:43,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (1/1) ... [2022-10-15 21:33:43,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:33:43,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:33:43,616 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:33:43,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:33:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:33:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-10-15 21:33:43,704 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-10-15 21:33:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:33:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:33:43,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:33:43,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:33:43,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:33:43,705 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-10-15 21:33:43,705 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-10-15 21:33:43,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:33:43,706 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:33:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-15 21:33:43,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-15 21:33:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:33:43,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:33:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-15 21:33:43,707 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-15 21:33:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:33:43,707 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:33:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2022-10-15 21:33:43,707 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2022-10-15 21:33:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:33:43,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:33:43,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:33:43,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_tty [2022-10-15 21:33:43,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_tty [2022-10-15 21:33:43,710 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:33:43,710 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:33:43,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_1 [2022-10-15 21:33:43,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_1 [2022-10-15 21:33:43,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:33:43,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-10-15 21:33:43,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-10-15 21:33:43,711 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2022-10-15 21:33:43,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:33:43,713 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_tiocmset [2022-10-15 21:33:43,713 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_tiocmset [2022-10-15 21:33:43,714 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_tiocmget [2022-10-15 21:33:43,714 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_tiocmget [2022-10-15 21:33:43,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:33:43,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:33:43,716 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_ioctl [2022-10-15 21:33:43,716 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_ioctl [2022-10-15 21:33:43,716 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-10-15 21:33:43,716 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-10-15 21:33:43,716 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-10-15 21:33:43,717 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-10-15 21:33:43,718 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-10-15 21:33:43,718 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-10-15 21:33:43,718 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write_room [2022-10-15 21:33:43,718 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write_room [2022-10-15 21:33:43,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:33:43,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:33:43,719 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2022-10-15 21:33:43,719 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2022-10-15 21:33:43,719 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_init_termios [2022-10-15 21:33:43,719 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_init_termios [2022-10-15 21:33:43,720 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2022-10-15 21:33:43,721 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2022-10-15 21:33:43,721 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-15 21:33:43,722 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-15 21:33:43,722 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-15 21:33:43,722 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-15 21:33:43,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:33:43,724 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_set_termios [2022-10-15 21:33:43,724 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_set_termios [2022-10-15 21:33:43,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:33:43,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:33:43,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:33:43,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:33:43,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:33:44,306 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:33:44,310 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:33:44,941 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:33:47,784 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-10-15 21:33:49,087 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:33:49,102 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:33:49,102 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:33:49,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:33:49 BoogieIcfgContainer [2022-10-15 21:33:49,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:33:49,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:33:49,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:33:49,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:33:49,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:33:40" (1/3) ... [2022-10-15 21:33:49,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b20c852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:33:49, skipping insertion in model container [2022-10-15 21:33:49,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (2/3) ... [2022-10-15 21:33:49,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b20c852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:33:49, skipping insertion in model container [2022-10-15 21:33:49,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:33:49" (3/3) ... [2022-10-15 21:33:49,117 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i [2022-10-15 21:33:49,140 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:33:49,141 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2022-10-15 21:33:49,224 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:33:49,232 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3053606c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:33:49,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2022-10-15 21:33:49,244 INFO L276 IsEmpty]: Start isEmpty. Operand has 712 states, 537 states have (on average 1.4916201117318435) internal successors, (801), 581 states have internal predecessors, (801), 112 states have call successors, (112), 28 states have call predecessors, (112), 26 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2022-10-15 21:33:49,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-15 21:33:49,260 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:33:49,261 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:33:49,262 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [kmallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, kmallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-10-15 21:33:49,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:33:49,269 INFO L85 PathProgramCache]: Analyzing trace with hash 814139135, now seen corresponding path program 1 times [2022-10-15 21:33:49,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:33:49,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694314226] [2022-10-15 21:33:49,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:33:49,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:33:49,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:33:50,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:33:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:33:50,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:33:50,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:33:50,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:33:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:33:50,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:33:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:33:50,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:33:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:33:50,212 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-15 21:33:50,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:33:50,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694314226] [2022-10-15 21:33:50,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694314226] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:33:50,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:33:50,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:33:50,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579927096] [2022-10-15 21:33:50,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:33:50,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:33:50,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:33:50,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:33:50,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:33:50,275 INFO L87 Difference]: Start difference. First operand has 712 states, 537 states have (on average 1.4916201117318435) internal successors, (801), 581 states have internal predecessors, (801), 112 states have call successors, (112), 28 states have call predecessors, (112), 26 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-15 21:33:53,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:33:55,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:33:57,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:33:58,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:33:58,499 INFO L93 Difference]: Finished difference Result 2201 states and 3362 transitions. [2022-10-15 21:33:58,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:33:58,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 44 [2022-10-15 21:33:58,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:33:58,560 INFO L225 Difference]: With dead ends: 2201 [2022-10-15 21:33:58,560 INFO L226 Difference]: Without dead ends: 1459 [2022-10-15 21:33:58,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:33:58,580 INFO L413 NwaCegarLoop]: 1305 mSDtfsCounter, 1472 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 501 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1545 SdHoareTripleChecker+Valid, 2903 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 501 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-10-15 21:33:58,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1545 Valid, 2903 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [501 Valid, 572 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-10-15 21:33:58,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2022-10-15 21:33:58,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 1182. [2022-10-15 21:33:58,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1182 states, 912 states have (on average 1.4331140350877194) internal successors, (1307), 942 states have internal predecessors, (1307), 195 states have call successors, (195), 45 states have call predecessors, (195), 45 states have return successors, (195), 195 states have call predecessors, (195), 195 states have call successors, (195) [2022-10-15 21:33:58,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1182 states to 1182 states and 1697 transitions. [2022-10-15 21:33:58,845 INFO L78 Accepts]: Start accepts. Automaton has 1182 states and 1697 transitions. Word has length 44 [2022-10-15 21:33:58,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:33:58,846 INFO L495 AbstractCegarLoop]: Abstraction has 1182 states and 1697 transitions. [2022-10-15 21:33:58,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-15 21:33:58,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states and 1697 transitions. [2022-10-15 21:33:58,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-15 21:33:58,860 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:33:58,860 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-10-15 21:33:58,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:33:58,861 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [kmallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, kmallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-10-15 21:33:58,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:33:58,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1377939187, now seen corresponding path program 1 times [2022-10-15 21:33:58,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:33:58,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873263908] [2022-10-15 21:33:58,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:33:58,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:33:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:33:59,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:33:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:33:59,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:33:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:33:59,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:33:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:33:59,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:33:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:33:59,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:33:59,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:33:59,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-15 21:33:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:33:59,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:33:59,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:33:59,162 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-15 21:33:59,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:33:59,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873263908] [2022-10-15 21:33:59,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873263908] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:33:59,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:33:59,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:33:59,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849302668] [2022-10-15 21:33:59,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:33:59,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:33:59,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:33:59,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:33:59,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:33:59,168 INFO L87 Difference]: Start difference. First operand 1182 states and 1697 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-15 21:34:02,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:34:04,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:34:05,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:34:05,049 INFO L93 Difference]: Finished difference Result 2704 states and 3940 transitions. [2022-10-15 21:34:05,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:34:05,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2022-10-15 21:34:05,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:34:05,062 INFO L225 Difference]: With dead ends: 2704 [2022-10-15 21:34:05,063 INFO L226 Difference]: Without dead ends: 1536 [2022-10-15 21:34:05,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:34:05,069 INFO L413 NwaCegarLoop]: 1017 mSDtfsCounter, 285 mSDsluCounter, 1825 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 125 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 2842 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-10-15 21:34:05,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 2842 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 787 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-10-15 21:34:05,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2022-10-15 21:34:05,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1276. [2022-10-15 21:34:05,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 995 states have (on average 1.429145728643216) internal successors, (1422), 1026 states have internal predecessors, (1422), 200 states have call successors, (200), 51 states have call predecessors, (200), 51 states have return successors, (200), 200 states have call predecessors, (200), 200 states have call successors, (200) [2022-10-15 21:34:05,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1822 transitions. [2022-10-15 21:34:05,165 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1822 transitions. Word has length 53 [2022-10-15 21:34:05,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:34:05,165 INFO L495 AbstractCegarLoop]: Abstraction has 1276 states and 1822 transitions. [2022-10-15 21:34:05,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-15 21:34:05,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1822 transitions. [2022-10-15 21:34:05,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-15 21:34:05,168 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:34:05,168 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-10-15 21:34:05,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:34:05,169 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [kmallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, kmallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-10-15 21:34:05,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:34:05,170 INFO L85 PathProgramCache]: Analyzing trace with hash -693248403, now seen corresponding path program 1 times [2022-10-15 21:34:05,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:34:05,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126339132] [2022-10-15 21:34:05,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:34:05,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:34:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:05,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:34:05,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:05,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:34:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:05,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:34:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:05,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:34:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:05,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:34:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:05,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:34:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:05,476 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-15 21:34:05,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:34:05,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126339132] [2022-10-15 21:34:05,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126339132] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:34:05,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:34:05,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:34:05,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888903268] [2022-10-15 21:34:05,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:34:05,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:34:05,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:34:05,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:34:05,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:34:05,480 INFO L87 Difference]: Start difference. First operand 1276 states and 1822 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 21:34:08,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:34:10,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:34:12,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:34:14,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:34:15,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:34:15,743 INFO L93 Difference]: Finished difference Result 3568 states and 5322 transitions. [2022-10-15 21:34:15,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:34:15,745 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 67 [2022-10-15 21:34:15,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:34:15,766 INFO L225 Difference]: With dead ends: 3568 [2022-10-15 21:34:15,766 INFO L226 Difference]: Without dead ends: 2323 [2022-10-15 21:34:15,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:34:15,777 INFO L413 NwaCegarLoop]: 1412 mSDtfsCounter, 1602 mSDsluCounter, 2666 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 313 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1672 SdHoareTripleChecker+Valid, 4078 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 313 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:34:15,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1672 Valid, 4078 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [313 Valid, 993 Invalid, 3 Unknown, 0 Unchecked, 10.0s Time] [2022-10-15 21:34:15,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2323 states. [2022-10-15 21:34:15,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2323 to 1259. [2022-10-15 21:34:15,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 980 states have (on average 1.4306122448979592) internal successors, (1402), 1011 states have internal predecessors, (1402), 199 states have call successors, (199), 50 states have call predecessors, (199), 50 states have return successors, (199), 198 states have call predecessors, (199), 199 states have call successors, (199) [2022-10-15 21:34:15,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 1800 transitions. [2022-10-15 21:34:15,910 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 1800 transitions. Word has length 67 [2022-10-15 21:34:15,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:34:15,913 INFO L495 AbstractCegarLoop]: Abstraction has 1259 states and 1800 transitions. [2022-10-15 21:34:15,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 21:34:15,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 1800 transitions. [2022-10-15 21:34:15,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-15 21:34:15,917 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:34:15,918 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:34:15,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:34:15,918 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [kmallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, kmallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-10-15 21:34:15,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:34:15,919 INFO L85 PathProgramCache]: Analyzing trace with hash 37757072, now seen corresponding path program 1 times [2022-10-15 21:34:15,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:34:15,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402182945] [2022-10-15 21:34:15,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:34:15,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:34:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:16,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:34:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:16,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:34:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:16,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:34:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:16,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:34:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:16,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:34:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:16,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-15 21:34:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:16,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 21:34:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:16,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-15 21:34:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:16,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-15 21:34:16,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:16,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-15 21:34:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:16,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:34:16,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:16,328 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-10-15 21:34:16,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:34:16,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402182945] [2022-10-15 21:34:16,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402182945] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:34:16,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:34:16,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:34:16,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094033034] [2022-10-15 21:34:16,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:34:16,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:34:16,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:34:16,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:34:16,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:34:16,332 INFO L87 Difference]: Start difference. First operand 1259 states and 1800 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-15 21:34:18,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:34:20,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:34:20,193 INFO L93 Difference]: Finished difference Result 3498 states and 5099 transitions. [2022-10-15 21:34:20,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:34:20,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 91 [2022-10-15 21:34:20,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:34:20,213 INFO L225 Difference]: With dead ends: 3498 [2022-10-15 21:34:20,213 INFO L226 Difference]: Without dead ends: 2270 [2022-10-15 21:34:20,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:34:20,224 INFO L413 NwaCegarLoop]: 1025 mSDtfsCounter, 1018 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 416 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1052 SdHoareTripleChecker+Valid, 2332 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 416 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-10-15 21:34:20,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1052 Valid, 2332 Invalid, 1059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [416 Valid, 642 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-10-15 21:34:20,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2270 states. [2022-10-15 21:34:20,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2270 to 1841. [2022-10-15 21:34:20,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1841 states, 1463 states have (on average 1.393028024606972) internal successors, (2038), 1497 states have internal predecessors, (2038), 261 states have call successors, (261), 81 states have call predecessors, (261), 87 states have return successors, (291), 263 states have call predecessors, (291), 261 states have call successors, (291) [2022-10-15 21:34:20,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1841 states to 1841 states and 2590 transitions. [2022-10-15 21:34:20,378 INFO L78 Accepts]: Start accepts. Automaton has 1841 states and 2590 transitions. Word has length 91 [2022-10-15 21:34:20,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:34:20,381 INFO L495 AbstractCegarLoop]: Abstraction has 1841 states and 2590 transitions. [2022-10-15 21:34:20,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-15 21:34:20,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1841 states and 2590 transitions. [2022-10-15 21:34:20,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-10-15 21:34:20,384 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:34:20,385 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:34:20,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:34:20,385 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [kmallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, kmallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-10-15 21:34:20,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:34:20,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1079804327, now seen corresponding path program 1 times [2022-10-15 21:34:20,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:34:20,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101794586] [2022-10-15 21:34:20,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:34:20,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:34:20,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:20,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:34:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:20,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:34:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:20,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:34:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:20,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:34:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:20,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:34:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:20,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:34:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:20,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-15 21:34:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:20,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-15 21:34:20,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:20,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-15 21:34:20,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:20,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-15 21:34:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:20,920 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-10-15 21:34:20,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:34:20,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101794586] [2022-10-15 21:34:20,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101794586] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:34:20,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:34:20,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:34:20,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509788272] [2022-10-15 21:34:20,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:34:20,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:34:20,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:34:20,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:34:20,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:34:20,932 INFO L87 Difference]: Start difference. First operand 1841 states and 2590 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 21:34:23,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:34:24,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:34:24,669 INFO L93 Difference]: Finished difference Result 3093 states and 4418 transitions. [2022-10-15 21:34:24,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:34:24,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2022-10-15 21:34:24,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:34:24,695 INFO L225 Difference]: With dead ends: 3093 [2022-10-15 21:34:24,696 INFO L226 Difference]: Without dead ends: 3087 [2022-10-15 21:34:24,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:34:24,700 INFO L413 NwaCegarLoop]: 1002 mSDtfsCounter, 1042 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 415 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 2365 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:34:24,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1080 Valid, 2365 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [415 Valid, 526 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-10-15 21:34:24,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3087 states. [2022-10-15 21:34:24,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3087 to 2435. [2022-10-15 21:34:24,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2435 states, 1944 states have (on average 1.3698559670781894) internal successors, (2663), 1980 states have internal predecessors, (2663), 339 states have call successors, (339), 116 states have call predecessors, (339), 122 states have return successors, (371), 340 states have call predecessors, (371), 339 states have call successors, (371) [2022-10-15 21:34:24,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2435 states to 2435 states and 3373 transitions. [2022-10-15 21:34:24,874 INFO L78 Accepts]: Start accepts. Automaton has 2435 states and 3373 transitions. Word has length 92 [2022-10-15 21:34:24,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:34:24,874 INFO L495 AbstractCegarLoop]: Abstraction has 2435 states and 3373 transitions. [2022-10-15 21:34:24,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 21:34:24,875 INFO L276 IsEmpty]: Start isEmpty. Operand 2435 states and 3373 transitions. [2022-10-15 21:34:24,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-15 21:34:24,878 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:34:24,878 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:34:24,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 21:34:24,879 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [kmallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, kmallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-10-15 21:34:24,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:34:24,879 INFO L85 PathProgramCache]: Analyzing trace with hash 435675915, now seen corresponding path program 1 times [2022-10-15 21:34:24,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:34:24,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659435818] [2022-10-15 21:34:24,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:34:24,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:34:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:25,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:34:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:25,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:34:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:25,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:34:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:25,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:34:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:25,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:34:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:25,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:34:25,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:25,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-15 21:34:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:25,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-15 21:34:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:25,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-15 21:34:25,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:25,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-15 21:34:25,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:25,183 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-10-15 21:34:25,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:34:25,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659435818] [2022-10-15 21:34:25,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659435818] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:34:25,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:34:25,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:34:25,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861487516] [2022-10-15 21:34:25,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:34:25,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:34:25,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:34:25,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:34:25,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:34:25,187 INFO L87 Difference]: Start difference. First operand 2435 states and 3373 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-15 21:34:27,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:34:29,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:34:31,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:34:34,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:34:36,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:34:36,287 INFO L93 Difference]: Finished difference Result 5995 states and 8549 transitions. [2022-10-15 21:34:36,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:34:36,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 103 [2022-10-15 21:34:36,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:34:36,316 INFO L225 Difference]: With dead ends: 5995 [2022-10-15 21:34:36,316 INFO L226 Difference]: Without dead ends: 4185 [2022-10-15 21:34:36,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:34:36,325 INFO L413 NwaCegarLoop]: 1853 mSDtfsCounter, 1008 mSDsluCounter, 2947 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 184 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 4800 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-10-15 21:34:36,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 4800 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1092 Invalid, 3 Unknown, 0 Unchecked, 10.8s Time] [2022-10-15 21:34:36,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4185 states. [2022-10-15 21:34:36,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4185 to 3262. [2022-10-15 21:34:36,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3262 states, 2614 states have (on average 1.3787299158377966) internal successors, (3604), 2650 states have internal predecessors, (3604), 459 states have call successors, (459), 153 states have call predecessors, (459), 159 states have return successors, (495), 460 states have call predecessors, (495), 459 states have call successors, (495) [2022-10-15 21:34:36,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 4558 transitions. [2022-10-15 21:34:36,604 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 4558 transitions. Word has length 103 [2022-10-15 21:34:36,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:34:36,606 INFO L495 AbstractCegarLoop]: Abstraction has 3262 states and 4558 transitions. [2022-10-15 21:34:36,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-15 21:34:36,606 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 4558 transitions. [2022-10-15 21:34:36,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-15 21:34:36,609 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:34:36,609 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:34:36,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 21:34:36,610 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [kmallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, kmallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-10-15 21:34:36,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:34:36,611 INFO L85 PathProgramCache]: Analyzing trace with hash 454762976, now seen corresponding path program 1 times [2022-10-15 21:34:36,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:34:36,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028825902] [2022-10-15 21:34:36,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:34:36,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:34:36,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:36,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:34:36,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:36,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:34:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:36,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:34:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:36,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:34:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:36,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:34:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:36,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:34:36,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:36,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-15 21:34:36,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:36,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-15 21:34:36,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:36,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-15 21:34:36,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:36,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-15 21:34:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:37,010 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-10-15 21:34:37,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:34:37,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028825902] [2022-10-15 21:34:37,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028825902] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:34:37,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863498937] [2022-10-15 21:34:37,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:34:37,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:34:37,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:34:37,019 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:34:37,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 21:34:37,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:37,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 1606 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:34:37,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:34:37,716 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 80 proven. 9 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-10-15 21:34:37,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:34:37,923 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-10-15 21:34:37,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863498937] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:34:37,924 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:34:37,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8 [2022-10-15 21:34:37,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725623134] [2022-10-15 21:34:37,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:34:37,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-15 21:34:37,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:34:37,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-15 21:34:37,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:34:37,927 INFO L87 Difference]: Start difference. First operand 3262 states and 4558 transitions. Second operand has 9 states, 8 states have (on average 17.25) internal successors, (138), 7 states have internal predecessors, (138), 4 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20)