./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -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 -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d0954289a294fb2be404f98afcefa652a2fbf60d586d07e7d68c419183f4ff07 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 17:15:18,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 17:15:18,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 17:15:18,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 17:15:18,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 17:15:18,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 17:15:18,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 17:15:18,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 17:15:18,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 17:15:18,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 17:15:18,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 17:15:18,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 17:15:18,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 17:15:18,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 17:15:18,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 17:15:18,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 17:15:18,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 17:15:18,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 17:15:18,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 17:15:18,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 17:15:18,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 17:15:18,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 17:15:18,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 17:15:18,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 17:15:18,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 17:15:18,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 17:15:18,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 17:15:18,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 17:15:18,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 17:15:18,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 17:15:18,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 17:15:18,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 17:15:18,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 17:15:18,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 17:15:18,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 17:15:18,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 17:15:18,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 17:15:18,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 17:15:18,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 17:15:18,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 17:15:18,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 17:15:18,096 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 17:15:18,124 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 17:15:18,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 17:15:18,125 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 17:15:18,125 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 17:15:18,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 17:15:18,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 17:15:18,127 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 17:15:18,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 17:15:18,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 17:15:18,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 17:15:18,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 17:15:18,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 17:15:18,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 17:15:18,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 17:15:18,129 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 17:15:18,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 17:15:18,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 17:15:18,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 17:15:18,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 17:15:18,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 17:15:18,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 17:15:18,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 17:15:18,130 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 17:15:18,130 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 17:15:18,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 17:15:18,131 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 17:15:18,131 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 17:15:18,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 17:15:18,131 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 17:15:18,131 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0954289a294fb2be404f98afcefa652a2fbf60d586d07e7d68c419183f4ff07 [2021-11-05 17:15:18,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 17:15:18,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 17:15:18,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 17:15:18,424 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 17:15:18,425 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 17:15:18,426 INFO L432 ainManager$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 [2021-11-05 17:15:18,474 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/348593c52/f52265cb103a4d41b2fd58f26be92d93/FLAGc9c21187a [2021-11-05 17:15:19,044 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 17:15:19,044 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 [2021-11-05 17:15:19,075 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/348593c52/f52265cb103a4d41b2fd58f26be92d93/FLAGc9c21187a [2021-11-05 17:15:19,255 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/348593c52/f52265cb103a4d41b2fd58f26be92d93 [2021-11-05 17:15:19,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 17:15:19,265 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 17:15:19,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 17:15:19,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 17:15:19,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 17:15:19,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 05:15:19" (1/1) ... [2021-11-05 17:15:19,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd3ad50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:15:19, skipping insertion in model container [2021-11-05 17:15:19,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 05:15:19" (1/1) ... [2021-11-05 17:15:19,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 17:15:19,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 17:15:19,779 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3507] [2021-11-05 17:15:19,780 WARN L1236 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] [2021-11-05 17:15:19,780 WARN L1236 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] [2021-11-05 17:15:19,781 WARN L1236 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] [2021-11-05 17:15:19,781 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3516] [2021-11-05 17:15:19,783 WARN L1236 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] [2021-11-05 17:15:19,783 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3524] [2021-11-05 17:15:19,784 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3527] [2021-11-05 17:15:19,802 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3940] [2021-11-05 17:15:19,802 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3941] [2021-11-05 17:15:19,803 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3942] [2021-11-05 17:15:19,803 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3943] [2021-11-05 17:15:19,803 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3944] [2021-11-05 17:15:19,804 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3945] [2021-11-05 17:15:20,026 WARN L228 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] [2021-11-05 17:15:20,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 17:15:20,336 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 17:15:20,437 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3507] [2021-11-05 17:15:20,437 WARN L1236 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] [2021-11-05 17:15:20,437 WARN L1236 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] [2021-11-05 17:15:20,438 WARN L1236 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] [2021-11-05 17:15:20,438 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3516] [2021-11-05 17:15:20,438 WARN L1236 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] [2021-11-05 17:15:20,438 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3524] [2021-11-05 17:15:20,438 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3527] [2021-11-05 17:15:20,453 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3940] [2021-11-05 17:15:20,454 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3941] [2021-11-05 17:15:20,454 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3942] [2021-11-05 17:15:20,455 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3943] [2021-11-05 17:15:20,455 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3944] [2021-11-05 17:15:20,455 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3945] [2021-11-05 17:15:20,470 WARN L228 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] [2021-11-05 17:15:20,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 17:15:20,675 INFO L208 MainTranslator]: Completed translation [2021-11-05 17:15:20,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:15:20 WrapperNode [2021-11-05 17:15:20,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 17:15:20,679 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 17:15:20,679 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 17:15:20,679 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 17:15:20,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:15:20" (1/1) ... [2021-11-05 17:15:20,747 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:15:20" (1/1) ... [2021-11-05 17:15:20,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 17:15:20,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 17:15:20,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 17:15:20,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 17:15:20,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:15:20" (1/1) ... [2021-11-05 17:15:20,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:15:20" (1/1) ... [2021-11-05 17:15:21,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:15:20" (1/1) ... [2021-11-05 17:15:21,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:15:20" (1/1) ... [2021-11-05 17:15:21,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:15:20" (1/1) ... [2021-11-05 17:15:21,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:15:20" (1/1) ... [2021-11-05 17:15:21,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:15:20" (1/1) ... [2021-11-05 17:15:21,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 17:15:21,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 17:15:21,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 17:15:21,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 17:15:21,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:15:20" (1/1) ... [2021-11-05 17:15:21,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 17:15:21,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 17:15:21,310 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) [2021-11-05 17:15:21,317 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 [2021-11-05 17:15:21,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 17:15:21,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 17:15:21,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 17:15:21,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 17:15:21,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 17:15:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 17:15:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2021-11-05 17:15:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 17:15:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 17:15:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 17:15:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 17:15:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 17:15:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 17:15:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 17:15:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 17:15:21,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 17:15:35,848 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 17:15:35,849 INFO L299 CfgBuilder]: Removed 1401 assume(true) statements. [2021-11-05 17:15:35,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 05:15:35 BoogieIcfgContainer [2021-11-05 17:15:35,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 17:15:35,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 17:15:35,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 17:15:35,859 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 17:15:35,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 05:15:19" (1/3) ... [2021-11-05 17:15:35,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c51b65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 05:15:35, skipping insertion in model container [2021-11-05 17:15:35,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:15:20" (2/3) ... [2021-11-05 17:15:35,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c51b65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 05:15:35, skipping insertion in model container [2021-11-05 17:15:35,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 05:15:35" (3/3) ... [2021-11-05 17:15:35,862 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i [2021-11-05 17:15:35,867 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 17:15:35,867 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-05 17:15:35,920 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 17:15:35,927 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 17:15:35,928 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-05 17:15:35,970 INFO L276 IsEmpty]: Start isEmpty. Operand has 1817 states, 1805 states have (on average 1.5501385041551246) internal successors, (2798), 1816 states have internal predecessors, (2798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:15:35,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-05 17:15:35,990 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:15:35,990 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:15:35,991 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:15:35,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:15:35,995 INFO L85 PathProgramCache]: Analyzing trace with hash 666057958, now seen corresponding path program 1 times [2021-11-05 17:15:36,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:15:36,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291122872] [2021-11-05 17:15:36,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:15:36,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:15:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:15:36,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:15:36,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:15:36,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291122872] [2021-11-05 17:15:36,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291122872] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:15:36,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:15:36,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:15:36,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313956271] [2021-11-05 17:15:36,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:15:36,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:15:36,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:15:36,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:15:36,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:15:36,500 INFO L87 Difference]: Start difference. First operand has 1817 states, 1805 states have (on average 1.5501385041551246) internal successors, (2798), 1816 states have internal predecessors, (2798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:15:36,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:15:36,849 INFO L93 Difference]: Finished difference Result 2765 states and 4178 transitions. [2021-11-05 17:15:36,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:15:36,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-05 17:15:36,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:15:36,875 INFO L225 Difference]: With dead ends: 2765 [2021-11-05 17:15:36,875 INFO L226 Difference]: Without dead ends: 931 [2021-11-05 17:15:36,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.11ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:15:36,895 INFO L933 BasicCegarLoop]: 1240 mSDtfsCounter, 102 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 201.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 2344 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.88ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 253.87ms IncrementalHoareTripleChecker+Time [2021-11-05 17:15:36,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 2344 Invalid, 104 Unknown, 0 Unchecked, 5.88ms Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 253.87ms Time] [2021-11-05 17:15:36,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2021-11-05 17:15:36,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 931. [2021-11-05 17:15:36,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 920 states have (on average 1.392391304347826) internal successors, (1281), 930 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:15:36,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1281 transitions. [2021-11-05 17:15:36,960 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1281 transitions. Word has length 31 [2021-11-05 17:15:36,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:15:36,960 INFO L470 AbstractCegarLoop]: Abstraction has 931 states and 1281 transitions. [2021-11-05 17:15:36,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:15:36,962 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1281 transitions. [2021-11-05 17:15:36,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-05 17:15:36,965 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:15:36,965 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:15:36,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 17:15:36,966 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:15:36,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:15:36,967 INFO L85 PathProgramCache]: Analyzing trace with hash 361424456, now seen corresponding path program 1 times [2021-11-05 17:15:36,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:15:36,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151763362] [2021-11-05 17:15:36,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:15:36,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:15:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:15:37,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:15:37,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:15:37,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151763362] [2021-11-05 17:15:37,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151763362] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:15:37,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:15:37,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:15:37,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027358949] [2021-11-05 17:15:37,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:15:37,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:15:37,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:15:37,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:15:37,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:15:37,108 INFO L87 Difference]: Start difference. First operand 931 states and 1281 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:15:39,146 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:15:39,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:15:39,514 INFO L93 Difference]: Finished difference Result 1924 states and 2684 transitions. [2021-11-05 17:15:39,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:15:39,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-05 17:15:39,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:15:39,519 INFO L225 Difference]: With dead ends: 1924 [2021-11-05 17:15:39,519 INFO L226 Difference]: Without dead ends: 1021 [2021-11-05 17:15:39,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.97ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:15:39,525 INFO L933 BasicCegarLoop]: 1246 mSDtfsCounter, 301 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2234.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 2170 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.95ms SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2360.18ms IncrementalHoareTripleChecker+Time [2021-11-05 17:15:39,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 2170 Invalid, 170 Unknown, 0 Unchecked, 4.95ms Time], IncrementalHoareTripleChecker [47 Valid, 122 Invalid, 1 Unknown, 0 Unchecked, 2360.18ms Time] [2021-11-05 17:15:39,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2021-11-05 17:15:39,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1021. [2021-11-05 17:15:39,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 1010 states have (on average 1.388118811881188) internal successors, (1402), 1020 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:15:39,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1402 transitions. [2021-11-05 17:15:39,562 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1402 transitions. Word has length 52 [2021-11-05 17:15:39,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:15:39,563 INFO L470 AbstractCegarLoop]: Abstraction has 1021 states and 1402 transitions. [2021-11-05 17:15:39,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:15:39,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1402 transitions. [2021-11-05 17:15:39,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-05 17:15:39,566 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:15:39,566 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:15:39,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 17:15:39,567 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:15:39,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:15:39,567 INFO L85 PathProgramCache]: Analyzing trace with hash 403906542, now seen corresponding path program 1 times [2021-11-05 17:15:39,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:15:39,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960362003] [2021-11-05 17:15:39,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:15:39,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:15:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:15:39,772 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:15:39,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:15:39,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960362003] [2021-11-05 17:15:39,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960362003] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:15:39,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:15:39,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:15:39,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44912838] [2021-11-05 17:15:39,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:15:39,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:15:39,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:15:39,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:15:39,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:15:39,775 INFO L87 Difference]: Start difference. First operand 1021 states and 1402 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:15:41,792 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:15:43,859 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:15:45,901 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:15:47,943 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:15:47,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:15:47,983 INFO L93 Difference]: Finished difference Result 2018 states and 2779 transitions. [2021-11-05 17:15:47,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:15:47,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-11-05 17:15:47,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:15:47,988 INFO L225 Difference]: With dead ends: 2018 [2021-11-05 17:15:47,988 INFO L226 Difference]: Without dead ends: 1025 [2021-11-05 17:15:47,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.01ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:15:47,992 INFO L933 BasicCegarLoop]: 1219 mSDtfsCounter, 0 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8061.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2418 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.12ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8181.47ms IncrementalHoareTripleChecker+Time [2021-11-05 17:15:47,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2418 Invalid, 26 Unknown, 0 Unchecked, 2.12ms Time], IncrementalHoareTripleChecker [6 Valid, 16 Invalid, 4 Unknown, 0 Unchecked, 8181.47ms Time] [2021-11-05 17:15:47,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2021-11-05 17:15:48,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 1025. [2021-11-05 17:15:48,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 1014 states have (on average 1.3865877712031558) internal successors, (1406), 1024 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:15:48,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1406 transitions. [2021-11-05 17:15:48,019 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1406 transitions. Word has length 56 [2021-11-05 17:15:48,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:15:48,019 INFO L470 AbstractCegarLoop]: Abstraction has 1025 states and 1406 transitions. [2021-11-05 17:15:48,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:15:48,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1406 transitions. [2021-11-05 17:15:48,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-05 17:15:48,020 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:15:48,021 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:15:48,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 17:15:48,021 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:15:48,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:15:48,022 INFO L85 PathProgramCache]: Analyzing trace with hash 403966124, now seen corresponding path program 1 times [2021-11-05 17:15:48,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:15:48,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502074159] [2021-11-05 17:15:48,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:15:48,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:15:48,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:15:48,339 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:15:48,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:15:48,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502074159] [2021-11-05 17:15:48,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502074159] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:15:48,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:15:48,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 17:15:48,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79757055] [2021-11-05 17:15:48,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:15:48,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 17:15:48,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:15:48,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 17:15:48,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:15:48,341 INFO L87 Difference]: Start difference. First operand 1025 states and 1406 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:15:48,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:15:48,775 INFO L93 Difference]: Finished difference Result 2914 states and 4011 transitions. [2021-11-05 17:15:48,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 17:15:48,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-11-05 17:15:48,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:15:48,781 INFO L225 Difference]: With dead ends: 2914 [2021-11-05 17:15:48,782 INFO L226 Difference]: Without dead ends: 1914 [2021-11-05 17:15:48,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.18ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:15:48,785 INFO L933 BasicCegarLoop]: 1405 mSDtfsCounter, 1039 mSDsluCounter, 2426 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 310.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 3831 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.58ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 361.52ms IncrementalHoareTripleChecker+Time [2021-11-05 17:15:48,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1039 Valid, 3831 Invalid, 268 Unknown, 0 Unchecked, 6.58ms Time], IncrementalHoareTripleChecker [38 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 361.52ms Time] [2021-11-05 17:15:48,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2021-11-05 17:15:48,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1025. [2021-11-05 17:15:48,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 1014 states have (on average 1.3856015779092703) internal successors, (1405), 1024 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:15:48,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1405 transitions. [2021-11-05 17:15:48,810 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1405 transitions. Word has length 56 [2021-11-05 17:15:48,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:15:48,810 INFO L470 AbstractCegarLoop]: Abstraction has 1025 states and 1405 transitions. [2021-11-05 17:15:48,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:15:48,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1405 transitions. [2021-11-05 17:15:48,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-05 17:15:48,811 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:15:48,811 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:15:48,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 17:15:48,812 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:15:48,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:15:48,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1262603864, now seen corresponding path program 1 times [2021-11-05 17:15:48,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:15:48,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565238108] [2021-11-05 17:15:48,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:15:48,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:15:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:15:49,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:15:49,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:15:49,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565238108] [2021-11-05 17:15:49,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565238108] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:15:49,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:15:49,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 17:15:49,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644395676] [2021-11-05 17:15:49,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:15:49,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 17:15:49,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:15:49,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 17:15:49,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-05 17:15:49,117 INFO L87 Difference]: Start difference. First operand 1025 states and 1405 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:15:51,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:15:53,259 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:15:55,622 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:15:57,676 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:15:59,762 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:16:01,785 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:16:03,857 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:16:05,918 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:16:08,419 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:16:10,555 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:16:12,616 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:16:14,816 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:16:17,160 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:16:19,571 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:16:22,102 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:16:24,173 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:16:24,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:16:24,687 INFO L93 Difference]: Finished difference Result 14885 states and 20833 transitions. [2021-11-05 17:16:24,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-05 17:16:24,688 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-05 17:16:24,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:16:24,738 INFO L225 Difference]: With dead ends: 14885 [2021-11-05 17:16:24,738 INFO L226 Difference]: Without dead ends: 14869 [2021-11-05 17:16:24,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 307.03ms TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2021-11-05 17:16:24,747 INFO L933 BasicCegarLoop]: 3262 mSDtfsCounter, 18921 mSDsluCounter, 12913 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 104 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33746.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18921 SdHoareTripleChecker+Valid, 16175 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.30ms SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34709.34ms IncrementalHoareTripleChecker+Time [2021-11-05 17:16:24,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18921 Valid, 16175 Invalid, 724 Unknown, 0 Unchecked, 41.30ms Time], IncrementalHoareTripleChecker [104 Valid, 605 Invalid, 15 Unknown, 0 Unchecked, 34709.34ms Time] [2021-11-05 17:16:24,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14869 states. [2021-11-05 17:16:24,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14869 to 1975. [2021-11-05 17:16:24,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1975 states, 1964 states have (on average 1.3890020366598779) internal successors, (2728), 1974 states have internal predecessors, (2728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:24,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1975 states to 1975 states and 2728 transitions. [2021-11-05 17:16:24,875 INFO L78 Accepts]: Start accepts. Automaton has 1975 states and 2728 transitions. Word has length 58 [2021-11-05 17:16:24,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:16:24,876 INFO L470 AbstractCegarLoop]: Abstraction has 1975 states and 2728 transitions. [2021-11-05 17:16:24,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:24,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1975 states and 2728 transitions. [2021-11-05 17:16:24,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-05 17:16:24,878 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:16:24,878 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:16:24,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 17:16:24,879 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:16:24,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:16:24,880 INFO L85 PathProgramCache]: Analyzing trace with hash -596405054, now seen corresponding path program 1 times [2021-11-05 17:16:24,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:16:24,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945827659] [2021-11-05 17:16:24,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:16:24,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:16:24,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:16:24,987 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:16:24,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:16:24,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945827659] [2021-11-05 17:16:24,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945827659] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:16:24,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:16:24,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:16:24,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030691932] [2021-11-05 17:16:24,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:16:24,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:16:24,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:16:24,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:16:24,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:16:24,994 INFO L87 Difference]: Start difference. First operand 1975 states and 2728 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:27,022 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:16:27,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:16:27,449 INFO L93 Difference]: Finished difference Result 4102 states and 5734 transitions. [2021-11-05 17:16:27,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:16:27,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-05 17:16:27,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:16:27,455 INFO L225 Difference]: With dead ends: 4102 [2021-11-05 17:16:27,455 INFO L226 Difference]: Without dead ends: 2155 [2021-11-05 17:16:27,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.98ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:16:27,460 INFO L933 BasicCegarLoop]: 1294 mSDtfsCounter, 356 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2228.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 2170 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.99ms SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2402.87ms IncrementalHoareTripleChecker+Time [2021-11-05 17:16:27,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 2170 Invalid, 171 Unknown, 0 Unchecked, 1.99ms Time], IncrementalHoareTripleChecker [49 Valid, 121 Invalid, 1 Unknown, 0 Unchecked, 2402.87ms Time] [2021-11-05 17:16:27,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2155 states. [2021-11-05 17:16:27,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2155 to 2155. [2021-11-05 17:16:27,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2155 states, 2144 states have (on average 1.3852611940298507) internal successors, (2970), 2154 states have internal predecessors, (2970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:27,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2155 states to 2155 states and 2970 transitions. [2021-11-05 17:16:27,555 INFO L78 Accepts]: Start accepts. Automaton has 2155 states and 2970 transitions. Word has length 73 [2021-11-05 17:16:27,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:16:27,555 INFO L470 AbstractCegarLoop]: Abstraction has 2155 states and 2970 transitions. [2021-11-05 17:16:27,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:27,556 INFO L276 IsEmpty]: Start isEmpty. Operand 2155 states and 2970 transitions. [2021-11-05 17:16:27,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-05 17:16:27,557 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:16:27,557 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:16:27,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 17:16:27,558 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:16:27,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:16:27,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1189172659, now seen corresponding path program 1 times [2021-11-05 17:16:27,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:16:27,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356695614] [2021-11-05 17:16:27,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:16:27,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:16:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:16:27,672 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-05 17:16:27,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:16:27,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356695614] [2021-11-05 17:16:27,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356695614] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:16:27,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:16:27,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 17:16:27,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744175198] [2021-11-05 17:16:27,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:16:27,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 17:16:27,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:16:27,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 17:16:27,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:16:27,675 INFO L87 Difference]: Start difference. First operand 2155 states and 2970 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:29,702 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:16:29,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:16:29,899 INFO L93 Difference]: Finished difference Result 5319 states and 7295 transitions. [2021-11-05 17:16:29,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 17:16:29,901 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-11-05 17:16:29,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:16:29,909 INFO L225 Difference]: With dead ends: 5319 [2021-11-05 17:16:29,910 INFO L226 Difference]: Without dead ends: 3192 [2021-11-05 17:16:29,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.52ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:16:29,913 INFO L933 BasicCegarLoop]: 1805 mSDtfsCounter, 1118 mSDsluCounter, 2488 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2039.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 4293 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.09ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2152.56ms IncrementalHoareTripleChecker+Time [2021-11-05 17:16:29,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1118 Valid, 4293 Invalid, 14 Unknown, 0 Unchecked, 3.09ms Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 2152.56ms Time] [2021-11-05 17:16:29,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3192 states. [2021-11-05 17:16:29,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3192 to 2159. [2021-11-05 17:16:29,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2159 states, 2148 states have (on average 1.3845437616387337) internal successors, (2974), 2158 states have internal predecessors, (2974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:29,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2159 states to 2159 states and 2974 transitions. [2021-11-05 17:16:29,972 INFO L78 Accepts]: Start accepts. Automaton has 2159 states and 2974 transitions. Word has length 88 [2021-11-05 17:16:29,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:16:29,974 INFO L470 AbstractCegarLoop]: Abstraction has 2159 states and 2974 transitions. [2021-11-05 17:16:29,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:29,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2159 states and 2974 transitions. [2021-11-05 17:16:29,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-05 17:16:29,979 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:16:29,979 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:16:29,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 17:16:29,979 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:16:29,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:16:29,981 INFO L85 PathProgramCache]: Analyzing trace with hash 844892482, now seen corresponding path program 1 times [2021-11-05 17:16:29,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:16:29,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710171903] [2021-11-05 17:16:29,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:16:29,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:16:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:16:30,091 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-05 17:16:30,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:16:30,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710171903] [2021-11-05 17:16:30,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710171903] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:16:30,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:16:30,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:16:30,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206539839] [2021-11-05 17:16:30,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:16:30,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:16:30,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:16:30,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:16:30,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:16:30,094 INFO L87 Difference]: Start difference. First operand 2159 states and 2974 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:32,125 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:16:32,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:16:32,560 INFO L93 Difference]: Finished difference Result 4470 states and 6226 transitions. [2021-11-05 17:16:32,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:16:32,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-11-05 17:16:32,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:16:32,567 INFO L225 Difference]: With dead ends: 4470 [2021-11-05 17:16:32,567 INFO L226 Difference]: Without dead ends: 2339 [2021-11-05 17:16:32,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.76ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:16:32,571 INFO L933 BasicCegarLoop]: 1301 mSDtfsCounter, 380 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2243.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 2153 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.01ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2396.93ms IncrementalHoareTripleChecker+Time [2021-11-05 17:16:32,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 2153 Invalid, 171 Unknown, 0 Unchecked, 2.01ms Time], IncrementalHoareTripleChecker [48 Valid, 122 Invalid, 1 Unknown, 0 Unchecked, 2396.93ms Time] [2021-11-05 17:16:32,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2339 states. [2021-11-05 17:16:32,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2339 to 2339. [2021-11-05 17:16:32,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2339 states, 2328 states have (on average 1.3814432989690721) internal successors, (3216), 2338 states have internal predecessors, (3216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:32,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 3216 transitions. [2021-11-05 17:16:32,633 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 3216 transitions. Word has length 93 [2021-11-05 17:16:32,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:16:32,633 INFO L470 AbstractCegarLoop]: Abstraction has 2339 states and 3216 transitions. [2021-11-05 17:16:32,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:32,633 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 3216 transitions. [2021-11-05 17:16:32,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-05 17:16:32,636 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:16:32,636 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2021-11-05 17:16:32,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 17:16:32,636 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:16:32,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:16:32,637 INFO L85 PathProgramCache]: Analyzing trace with hash 709594757, now seen corresponding path program 1 times [2021-11-05 17:16:32,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:16:32,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094598541] [2021-11-05 17:16:32,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:16:32,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:16:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:16:32,965 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-05 17:16:32,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:16:32,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094598541] [2021-11-05 17:16:32,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094598541] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 17:16:32,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722861081] [2021-11-05 17:16:32,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:16:32,966 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 17:16:32,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 17:16:32,976 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) [2021-11-05 17:16:33,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-05 17:16:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:16:33,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 1855 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-05 17:16:33,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:16:33,809 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-05 17:16:33,810 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 17:16:33,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722861081] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:16:33,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-05 17:16:33,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2021-11-05 17:16:33,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950393987] [2021-11-05 17:16:33,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:16:33,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 17:16:33,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:16:33,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 17:16:33,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-05 17:16:33,811 INFO L87 Difference]: Start difference. First operand 2339 states and 3216 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:35,849 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:16:36,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:16:36,130 INFO L93 Difference]: Finished difference Result 6931 states and 9536 transitions. [2021-11-05 17:16:36,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 17:16:36,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-11-05 17:16:36,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:16:36,152 INFO L225 Difference]: With dead ends: 6931 [2021-11-05 17:16:36,153 INFO L226 Difference]: Without dead ends: 4550 [2021-11-05 17:16:36,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 135.00ms TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-11-05 17:16:36,158 INFO L933 BasicCegarLoop]: 2381 mSDtfsCounter, 1166 mSDsluCounter, 5960 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2061.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 8341 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.12ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2171.50ms IncrementalHoareTripleChecker+Time [2021-11-05 17:16:36,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1166 Valid, 8341 Invalid, 28 Unknown, 0 Unchecked, 4.12ms Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2171.50ms Time] [2021-11-05 17:16:36,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4550 states. [2021-11-05 17:16:36,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4550 to 2319. [2021-11-05 17:16:36,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2319 states, 2308 states have (on average 1.3760831889081455) internal successors, (3176), 2318 states have internal predecessors, (3176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:36,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2319 states to 2319 states and 3176 transitions. [2021-11-05 17:16:36,242 INFO L78 Accepts]: Start accepts. Automaton has 2319 states and 3176 transitions. Word has length 101 [2021-11-05 17:16:36,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:16:36,242 INFO L470 AbstractCegarLoop]: Abstraction has 2319 states and 3176 transitions. [2021-11-05 17:16:36,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:36,243 INFO L276 IsEmpty]: Start isEmpty. Operand 2319 states and 3176 transitions. [2021-11-05 17:16:36,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-05 17:16:36,245 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:16:36,245 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1] [2021-11-05 17:16:36,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-05 17:16:36,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 17:16:36,468 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:16:36,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:16:36,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1068449267, now seen corresponding path program 1 times [2021-11-05 17:16:36,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:16:36,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707486137] [2021-11-05 17:16:36,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:16:36,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:16:36,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:16:36,827 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-05 17:16:36,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:16:36,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707486137] [2021-11-05 17:16:36,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707486137] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 17:16:36,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243628987] [2021-11-05 17:16:36,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:16:36,828 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 17:16:36,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 17:16:36,844 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 17:16:36,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-05 17:16:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:16:50,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 1957 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-05 17:16:50,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:16:51,205 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-11-05 17:16:51,206 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 17:16:51,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243628987] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:16:51,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-05 17:16:51,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2021-11-05 17:16:51,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009312626] [2021-11-05 17:16:51,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:16:51,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:16:51,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:16:51,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:16:51,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-05 17:16:51,208 INFO L87 Difference]: Start difference. First operand 2319 states and 3176 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:53,234 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:16:53,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:16:53,616 INFO L93 Difference]: Finished difference Result 3465 states and 4748 transitions. [2021-11-05 17:16:53,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:16:53,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-11-05 17:16:53,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:16:53,623 INFO L225 Difference]: With dead ends: 3465 [2021-11-05 17:16:53,623 INFO L226 Difference]: Without dead ends: 3449 [2021-11-05 17:16:53,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 107 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 76.17ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-05 17:16:53,624 INFO L933 BasicCegarLoop]: 1210 mSDtfsCounter, 1085 mSDsluCounter, 1191 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2076.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 2401 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.14ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2240.50ms IncrementalHoareTripleChecker+Time [2021-11-05 17:16:53,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1085 Valid, 2401 Invalid, 40 Unknown, 0 Unchecked, 2.14ms Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 1 Unknown, 0 Unchecked, 2240.50ms Time] [2021-11-05 17:16:53,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3449 states. [2021-11-05 17:16:53,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3449 to 2322. [2021-11-05 17:16:53,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2322 states, 2311 states have (on average 1.37559498052791) internal successors, (3179), 2321 states have internal predecessors, (3179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:53,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2322 states to 2322 states and 3179 transitions. [2021-11-05 17:16:53,697 INFO L78 Accepts]: Start accepts. Automaton has 2322 states and 3179 transitions. Word has length 107 [2021-11-05 17:16:53,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:16:53,697 INFO L470 AbstractCegarLoop]: Abstraction has 2322 states and 3179 transitions. [2021-11-05 17:16:53,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:53,697 INFO L276 IsEmpty]: Start isEmpty. Operand 2322 states and 3179 transitions. [2021-11-05 17:16:53,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-05 17:16:53,699 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:16:53,699 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:16:53,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-05 17:16:53,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-05 17:16:53,927 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:16:53,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:16:53,928 INFO L85 PathProgramCache]: Analyzing trace with hash -525453231, now seen corresponding path program 1 times [2021-11-05 17:16:53,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:16:53,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25111956] [2021-11-05 17:16:53,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:16:53,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:16:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:16:54,027 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-05 17:16:54,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:16:54,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25111956] [2021-11-05 17:16:54,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25111956] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:16:54,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:16:54,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 17:16:54,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47079026] [2021-11-05 17:16:54,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:16:54,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:16:54,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:16:54,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:16:54,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:16:54,029 INFO L87 Difference]: Start difference. First operand 2322 states and 3179 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:54,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:16:54,160 INFO L93 Difference]: Finished difference Result 4616 states and 6326 transitions. [2021-11-05 17:16:54,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:16:54,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-11-05 17:16:54,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:16:54,164 INFO L225 Difference]: With dead ends: 4616 [2021-11-05 17:16:54,164 INFO L226 Difference]: Without dead ends: 2322 [2021-11-05 17:16:54,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.20ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:16:54,167 INFO L933 BasicCegarLoop]: 1119 mSDtfsCounter, 1090 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.34ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.88ms IncrementalHoareTripleChecker+Time [2021-11-05 17:16:54,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1090 Valid, 1119 Invalid, 98 Unknown, 0 Unchecked, 1.34ms Time], IncrementalHoareTripleChecker [48 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 74.88ms Time] [2021-11-05 17:16:54,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2322 states. [2021-11-05 17:16:54,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2322 to 2322. [2021-11-05 17:16:54,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2322 states, 2311 states have (on average 1.333621808740805) internal successors, (3082), 2321 states have internal predecessors, (3082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:54,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2322 states to 2322 states and 3082 transitions. [2021-11-05 17:16:54,225 INFO L78 Accepts]: Start accepts. Automaton has 2322 states and 3082 transitions. Word has length 125 [2021-11-05 17:16:54,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:16:54,226 INFO L470 AbstractCegarLoop]: Abstraction has 2322 states and 3082 transitions. [2021-11-05 17:16:54,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:54,226 INFO L276 IsEmpty]: Start isEmpty. Operand 2322 states and 3082 transitions. [2021-11-05 17:16:54,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-05 17:16:54,228 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:16:54,228 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:16:54,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-05 17:16:54,228 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:16:54,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:16:54,229 INFO L85 PathProgramCache]: Analyzing trace with hash -990866799, now seen corresponding path program 1 times [2021-11-05 17:16:54,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:16:54,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491981122] [2021-11-05 17:16:54,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:16:54,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:16:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:16:54,325 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-05 17:16:54,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:16:54,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491981122] [2021-11-05 17:16:54,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491981122] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:16:54,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:16:54,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 17:16:54,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713487894] [2021-11-05 17:16:54,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:16:54,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 17:16:54,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:16:54,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 17:16:54,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:16:54,328 INFO L87 Difference]: Start difference. First operand 2322 states and 3082 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:56,354 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:16:56,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:16:56,668 INFO L93 Difference]: Finished difference Result 6234 states and 8220 transitions. [2021-11-05 17:16:56,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 17:16:56,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-11-05 17:16:56,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:16:56,675 INFO L225 Difference]: With dead ends: 6234 [2021-11-05 17:16:56,675 INFO L226 Difference]: Without dead ends: 3940 [2021-11-05 17:16:56,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.38ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:16:56,678 INFO L933 BasicCegarLoop]: 1996 mSDtfsCounter, 1577 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2043.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1577 SdHoareTripleChecker+Valid, 4403 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.87ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2236.19ms IncrementalHoareTripleChecker+Time [2021-11-05 17:16:56,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1577 Valid, 4403 Invalid, 16 Unknown, 0 Unchecked, 2.87ms Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 2236.19ms Time] [2021-11-05 17:16:56,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3940 states. [2021-11-05 17:16:56,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3940 to 2326. [2021-11-05 17:16:56,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2326 states, 2315 states have (on average 1.3330453563714904) internal successors, (3086), 2325 states have internal predecessors, (3086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:56,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2326 states to 2326 states and 3086 transitions. [2021-11-05 17:16:56,823 INFO L78 Accepts]: Start accepts. Automaton has 2326 states and 3086 transitions. Word has length 125 [2021-11-05 17:16:56,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:16:56,824 INFO L470 AbstractCegarLoop]: Abstraction has 2326 states and 3086 transitions. [2021-11-05 17:16:56,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:56,824 INFO L276 IsEmpty]: Start isEmpty. Operand 2326 states and 3086 transitions. [2021-11-05 17:16:56,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-05 17:16:56,826 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:16:56,826 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:16:56,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-05 17:16:56,827 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:16:56,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:16:56,827 INFO L85 PathProgramCache]: Analyzing trace with hash 860207890, now seen corresponding path program 1 times [2021-11-05 17:16:56,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:16:56,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100888905] [2021-11-05 17:16:56,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:16:56,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:16:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:16:56,943 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-05 17:16:56,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:16:56,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100888905] [2021-11-05 17:16:56,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100888905] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:16:56,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:16:56,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:16:56,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919250577] [2021-11-05 17:16:56,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:16:56,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:16:56,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:16:56,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:16:56,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:16:56,945 INFO L87 Difference]: Start difference. First operand 2326 states and 3086 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:57,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:16:57,007 INFO L93 Difference]: Finished difference Result 4626 states and 6144 transitions. [2021-11-05 17:16:57,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:16:57,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2021-11-05 17:16:57,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:16:57,011 INFO L225 Difference]: With dead ends: 4626 [2021-11-05 17:16:57,011 INFO L226 Difference]: Without dead ends: 2328 [2021-11-05 17:16:57,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.88ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:16:57,014 INFO L933 BasicCegarLoop]: 1168 mSDtfsCounter, 0 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2331 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.13ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.26ms IncrementalHoareTripleChecker+Time [2021-11-05 17:16:57,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2331 Invalid, 6 Unknown, 0 Unchecked, 1.13ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 8.26ms Time] [2021-11-05 17:16:57,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2328 states. [2021-11-05 17:16:57,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2328 to 2328. [2021-11-05 17:16:57,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2328 states, 2317 states have (on average 1.3327578765645232) internal successors, (3088), 2327 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:57,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2328 states to 2328 states and 3088 transitions. [2021-11-05 17:16:57,081 INFO L78 Accepts]: Start accepts. Automaton has 2328 states and 3088 transitions. Word has length 153 [2021-11-05 17:16:57,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:16:57,082 INFO L470 AbstractCegarLoop]: Abstraction has 2328 states and 3088 transitions. [2021-11-05 17:16:57,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:57,082 INFO L276 IsEmpty]: Start isEmpty. Operand 2328 states and 3088 transitions. [2021-11-05 17:16:57,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-05 17:16:57,084 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:16:57,084 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:16:57,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-05 17:16:57,085 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:16:57,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:16:57,085 INFO L85 PathProgramCache]: Analyzing trace with hash 350734800, now seen corresponding path program 1 times [2021-11-05 17:16:57,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:16:57,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292536689] [2021-11-05 17:16:57,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:16:57,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:16:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:16:57,190 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-05 17:16:57,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:16:57,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292536689] [2021-11-05 17:16:57,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292536689] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:16:57,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:16:57,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:16:57,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393578712] [2021-11-05 17:16:57,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:16:57,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:16:57,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:16:57,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:16:57,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:16:57,194 INFO L87 Difference]: Start difference. First operand 2328 states and 3088 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:57,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:16:57,253 INFO L93 Difference]: Finished difference Result 4630 states and 6148 transitions. [2021-11-05 17:16:57,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:16:57,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2021-11-05 17:16:57,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:16:57,257 INFO L225 Difference]: With dead ends: 4630 [2021-11-05 17:16:57,257 INFO L226 Difference]: Without dead ends: 2330 [2021-11-05 17:16:57,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.69ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:16:57,260 INFO L933 BasicCegarLoop]: 1168 mSDtfsCounter, 0 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2331 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.07ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.18ms IncrementalHoareTripleChecker+Time [2021-11-05 17:16:57,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2331 Invalid, 6 Unknown, 0 Unchecked, 1.07ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 7.18ms Time] [2021-11-05 17:16:57,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2330 states. [2021-11-05 17:16:57,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2330 to 2330. [2021-11-05 17:16:57,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2330 states, 2319 states have (on average 1.332470892626132) internal successors, (3090), 2329 states have internal predecessors, (3090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:57,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2330 states to 2330 states and 3090 transitions. [2021-11-05 17:16:57,320 INFO L78 Accepts]: Start accepts. Automaton has 2330 states and 3090 transitions. Word has length 153 [2021-11-05 17:16:57,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:16:57,320 INFO L470 AbstractCegarLoop]: Abstraction has 2330 states and 3090 transitions. [2021-11-05 17:16:57,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:57,320 INFO L276 IsEmpty]: Start isEmpty. Operand 2330 states and 3090 transitions. [2021-11-05 17:16:57,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-05 17:16:57,322 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:16:57,322 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:16:57,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-05 17:16:57,323 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:16:57,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:16:57,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1454703534, now seen corresponding path program 1 times [2021-11-05 17:16:57,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:16:57,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526906165] [2021-11-05 17:16:57,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:16:57,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:16:57,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:16:57,509 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-05 17:16:57,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:16:57,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526906165] [2021-11-05 17:16:57,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526906165] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:16:57,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:16:57,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 17:16:57,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038039867] [2021-11-05 17:16:57,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:16:57,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 17:16:57,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:16:57,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 17:16:57,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:16:57,512 INFO L87 Difference]: Start difference. First operand 2330 states and 3090 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:57,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:16:57,583 INFO L93 Difference]: Finished difference Result 4638 states and 6156 transitions. [2021-11-05 17:16:57,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 17:16:57,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2021-11-05 17:16:57,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:16:57,587 INFO L225 Difference]: With dead ends: 4638 [2021-11-05 17:16:57,587 INFO L226 Difference]: Without dead ends: 2336 [2021-11-05 17:16:57,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.03ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:16:57,591 INFO L933 BasicCegarLoop]: 1166 mSDtfsCounter, 3 mSDsluCounter, 2325 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3491 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.44ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.64ms IncrementalHoareTripleChecker+Time [2021-11-05 17:16:57,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 3491 Invalid, 15 Unknown, 0 Unchecked, 1.44ms Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 12.64ms Time] [2021-11-05 17:16:57,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2021-11-05 17:16:57,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2334. [2021-11-05 17:16:57,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2334 states, 2323 states have (on average 1.3318984072320275) internal successors, (3094), 2333 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:57,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2334 states to 2334 states and 3094 transitions. [2021-11-05 17:16:57,655 INFO L78 Accepts]: Start accepts. Automaton has 2334 states and 3094 transitions. Word has length 153 [2021-11-05 17:16:57,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:16:57,655 INFO L470 AbstractCegarLoop]: Abstraction has 2334 states and 3094 transitions. [2021-11-05 17:16:57,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:57,655 INFO L276 IsEmpty]: Start isEmpty. Operand 2334 states and 3094 transitions. [2021-11-05 17:16:57,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-05 17:16:57,657 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:16:57,657 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:16:57,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-05 17:16:57,658 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:16:57,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:16:57,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1314154924, now seen corresponding path program 1 times [2021-11-05 17:16:57,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:16:57,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976750187] [2021-11-05 17:16:57,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:16:57,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:16:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:16:57,827 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-05 17:16:57,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:16:57,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976750187] [2021-11-05 17:16:57,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976750187] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:16:57,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:16:57,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 17:16:57,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017372286] [2021-11-05 17:16:57,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:16:57,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 17:16:57,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:16:57,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 17:16:57,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 17:16:57,829 INFO L87 Difference]: Start difference. First operand 2334 states and 3094 transitions. Second operand has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:58,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:16:58,965 INFO L93 Difference]: Finished difference Result 12922 states and 17110 transitions. [2021-11-05 17:16:58,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-05 17:16:58,966 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2021-11-05 17:16:58,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:16:58,984 INFO L225 Difference]: With dead ends: 12922 [2021-11-05 17:16:58,984 INFO L226 Difference]: Without dead ends: 10616 [2021-11-05 17:16:58,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 104.32ms TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-11-05 17:16:58,990 INFO L933 BasicCegarLoop]: 2071 mSDtfsCounter, 6143 mSDsluCounter, 7440 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 545.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6143 SdHoareTripleChecker+Valid, 9511 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.87ms SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 660.44ms IncrementalHoareTripleChecker+Time [2021-11-05 17:16:58,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6143 Valid, 9511 Invalid, 684 Unknown, 0 Unchecked, 12.87ms Time], IncrementalHoareTripleChecker [70 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 660.44ms Time] [2021-11-05 17:16:58,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10616 states. [2021-11-05 17:16:59,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10616 to 2342. [2021-11-05 17:16:59,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2342 states, 2331 states have (on average 1.3307593307593308) internal successors, (3102), 2341 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:59,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2342 states to 2342 states and 3102 transitions. [2021-11-05 17:16:59,116 INFO L78 Accepts]: Start accepts. Automaton has 2342 states and 3102 transitions. Word has length 153 [2021-11-05 17:16:59,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:16:59,117 INFO L470 AbstractCegarLoop]: Abstraction has 2342 states and 3102 transitions. [2021-11-05 17:16:59,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:16:59,117 INFO L276 IsEmpty]: Start isEmpty. Operand 2342 states and 3102 transitions. [2021-11-05 17:16:59,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-05 17:16:59,121 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:16:59,121 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:16:59,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-05 17:16:59,122 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:16:59,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:16:59,123 INFO L85 PathProgramCache]: Analyzing trace with hash 707316216, now seen corresponding path program 1 times [2021-11-05 17:16:59,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:16:59,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701356181] [2021-11-05 17:16:59,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:16:59,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:16:59,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:16:59,353 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-05 17:16:59,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:16:59,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701356181] [2021-11-05 17:16:59,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701356181] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:16:59,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:16:59,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 17:16:59,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87377657] [2021-11-05 17:16:59,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:16:59,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 17:16:59,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:16:59,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 17:16:59,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-05 17:16:59,356 INFO L87 Difference]: Start difference. First operand 2342 states and 3102 transitions. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:17:01,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:17:01,693 INFO L93 Difference]: Finished difference Result 24750 states and 32850 transitions. [2021-11-05 17:17:01,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-05 17:17:01,695 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2021-11-05 17:17:01,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:17:01,735 INFO L225 Difference]: With dead ends: 24750 [2021-11-05 17:17:01,736 INFO L226 Difference]: Without dead ends: 22436 [2021-11-05 17:17:01,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 289.10ms TimeCoverageRelationStatistics Valid=172, Invalid=478, Unknown=0, NotChecked=0, Total=650 [2021-11-05 17:17:01,747 INFO L933 BasicCegarLoop]: 2931 mSDtfsCounter, 10167 mSDsluCounter, 14304 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 964.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10167 SdHoareTripleChecker+Valid, 17235 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.12ms SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1109.75ms IncrementalHoareTripleChecker+Time [2021-11-05 17:17:01,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10167 Valid, 17235 Invalid, 1172 Unknown, 0 Unchecked, 26.12ms Time], IncrementalHoareTripleChecker [77 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 1109.75ms Time] [2021-11-05 17:17:01,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22436 states. [2021-11-05 17:17:02,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22436 to 2352. [2021-11-05 17:17:02,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2352 states, 2341 states have (on average 1.3293464331482272) internal successors, (3112), 2351 states have internal predecessors, (3112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:17:02,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 3112 transitions. [2021-11-05 17:17:02,018 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 3112 transitions. Word has length 155 [2021-11-05 17:17:02,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:17:02,018 INFO L470 AbstractCegarLoop]: Abstraction has 2352 states and 3112 transitions. [2021-11-05 17:17:02,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:17:02,019 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 3112 transitions. [2021-11-05 17:17:02,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-05 17:17:02,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:17:02,021 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:17:02,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-05 17:17:02,022 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:17:02,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:17:02,022 INFO L85 PathProgramCache]: Analyzing trace with hash -218431236, now seen corresponding path program 1 times [2021-11-05 17:17:02,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:17:02,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355163919] [2021-11-05 17:17:02,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:17:02,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:17:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-05 17:17:03,450 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-05 17:17:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-05 17:17:04,839 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-05 17:17:04,840 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-05 17:17:04,840 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 11 remaining) [2021-11-05 17:17:04,841 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2021-11-05 17:17:04,841 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2021-11-05 17:17:04,842 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (7 of 11 remaining) [2021-11-05 17:17:04,842 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (6 of 11 remaining) [2021-11-05 17:17:04,842 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2021-11-05 17:17:04,842 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2021-11-05 17:17:04,842 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2021-11-05 17:17:04,843 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2021-11-05 17:17:04,843 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2021-11-05 17:17:04,843 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2021-11-05 17:17:04,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-05 17:17:04,846 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:17:04,848 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-05 17:17:05,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.11 05:17:05 BoogieIcfgContainer [2021-11-05 17:17:05,351 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-05 17:17:05,351 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-05 17:17:05,351 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-05 17:17:05,351 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-05 17:17:05,352 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 05:15:35" (3/4) ... [2021-11-05 17:17:05,354 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-05 17:17:05,354 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-05 17:17:05,355 INFO L158 Benchmark]: Toolchain (without parser) took 106090.25ms. Allocated memory was 58.7MB in the beginning and 746.6MB in the end (delta: 687.9MB). Free memory was 34.9MB in the beginning and 213.5MB in the end (delta: -178.6MB). Peak memory consumption was 510.3MB. Max. memory is 16.1GB. [2021-11-05 17:17:05,355 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 48.2MB. Free memory was 28.9MB in the beginning and 28.9MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-05 17:17:05,356 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1411.01ms. Allocated memory was 58.7MB in the beginning and 132.1MB in the end (delta: 73.4MB). Free memory was 34.5MB in the beginning and 79.2MB in the end (delta: -44.6MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2021-11-05 17:17:05,356 INFO L158 Benchmark]: Boogie Procedure Inliner took 282.82ms. Allocated memory is still 132.1MB. Free memory was 79.2MB in the beginning and 58.4MB in the end (delta: 20.8MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2021-11-05 17:17:05,356 INFO L158 Benchmark]: Boogie Preprocessor took 323.59ms. Allocated memory is still 132.1MB. Free memory was 58.4MB in the beginning and 52.9MB in the end (delta: 5.5MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2021-11-05 17:17:05,357 INFO L158 Benchmark]: RCFGBuilder took 14567.22ms. Allocated memory was 132.1MB in the beginning and 620.8MB in the end (delta: 488.6MB). Free memory was 52.9MB in the beginning and 353.0MB in the end (delta: -300.1MB). Peak memory consumption was 373.1MB. Max. memory is 16.1GB. [2021-11-05 17:17:05,357 INFO L158 Benchmark]: TraceAbstraction took 89495.08ms. Allocated memory was 620.8MB in the beginning and 746.6MB in the end (delta: 125.8MB). Free memory was 352.0MB in the beginning and 213.5MB in the end (delta: 138.4MB). Peak memory consumption was 280.0MB. Max. memory is 16.1GB. [2021-11-05 17:17:05,357 INFO L158 Benchmark]: Witness Printer took 3.06ms. Allocated memory is still 746.6MB. Free memory is still 213.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-05 17:17:05,364 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 48.2MB. Free memory was 28.9MB in the beginning and 28.9MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1411.01ms. Allocated memory was 58.7MB in the beginning and 132.1MB in the end (delta: 73.4MB). Free memory was 34.5MB in the beginning and 79.2MB in the end (delta: -44.6MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 282.82ms. Allocated memory is still 132.1MB. Free memory was 79.2MB in the beginning and 58.4MB in the end (delta: 20.8MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 323.59ms. Allocated memory is still 132.1MB. Free memory was 58.4MB in the beginning and 52.9MB in the end (delta: 5.5MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. * RCFGBuilder took 14567.22ms. Allocated memory was 132.1MB in the beginning and 620.8MB in the end (delta: 488.6MB). Free memory was 52.9MB in the beginning and 353.0MB in the end (delta: -300.1MB). Peak memory consumption was 373.1MB. Max. memory is 16.1GB. * TraceAbstraction took 89495.08ms. Allocated memory was 620.8MB in the beginning and 746.6MB in the end (delta: 125.8MB). Free memory was 352.0MB in the beginning and 213.5MB in the end (delta: 138.4MB). Peak memory consumption was 280.0MB. Max. memory is 16.1GB. * Witness Printer took 3.06ms. Allocated memory is still 746.6MB. Free memory is still 213.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 4403]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 4507, overapproximation of bitwiseOr at line 4818. Possible FailurePath: [L4426] int LDV_IN_INTERRUPT = 1; [L4427] int ldv_state_variable_2 ; [L4428] struct usb_serial *kobil_device_group2 ; [L4429] int ref_cnt ; [L4430] struct usb_interface *kobil_driver_group1 ; [L4431] struct file *kobil_device_group0 ; [L4432] struct tty_struct *kobil_device_group1 ; [L4433] int ldv_state_variable_1 ; [L4434] int usb_counter ; [L4435] struct usb_serial_port *kobil_device_group3 ; [L4436] int ldv_state_variable_0 ; [L4590] static int debug ; [L4608-L4618] static struct usb_device_id const id_table[5U] = { {3U, 3398U, 8209U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3398U, 8210U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3398U, 120U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3398U, 129U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}}; [L4619] struct usb_device_id const __mod_usb_device_table ; [L4620-L4625] static struct usb_driver kobil_driver = {"kobil", & usb_serial_probe, & usb_serial_disconnect, 0, 0, 0, 0, 0, 0, (struct usb_device_id const *)(& id_table), {{{{{0U}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}, {{0, 0, 0, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, 0}, 1U, (unsigned char)0, (unsigned char)0}; [L4626-L4633] static struct usb_serial_driver kobil_device = {"KOBIL USB smart card terminal", (struct usb_device_id const *)(& id_table), 1, {0, 0}, {"kobil", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, & kobil_driver, {{{{{0U}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}, 0UL, 0UL, 0, & kobil_startup, 0, 0, & kobil_release, 0, 0, 0, 0, & kobil_open, & kobil_close, & kobil_write, & kobil_write_room, & kobil_ioctl, & kobil_set_termios, 0, 0, 0, 0, & kobil_tiocmget, & kobil_tiocmset, 0, 0, 0, & kobil_init_termios, & kobil_read_int_callback, 0, 0, 0, 0, 0}; [L5289] int ldv_retval_2 ; [L5291] int ldv_retval_0 ; [L5293] int ldv_retval_1 ; [L5295] int ldv_retval_3 ; [L5750] struct tty_struct___0 *ldv_latest_tty ; VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ref_cnt=0, usb_counter=0] [L5325] unsigned char *ldvarg7 ; [L5326] void *tmp ; [L5327] unsigned int ldvarg3 ; [L5328] unsigned int tmp___0 ; [L5329] unsigned int ldvarg0 ; [L5330] unsigned int tmp___1 ; [L5331] struct urb *ldvarg5 ; [L5332] void *tmp___2 ; [L5333] int ldvarg6 ; [L5334] int tmp___3 ; [L5335] unsigned int ldvarg1 ; [L5336] unsigned int tmp___4 ; [L5337] struct ktermios *ldvarg4 ; [L5338] void *tmp___5 ; [L5339] unsigned long ldvarg2 ; [L5340] unsigned long tmp___6 ; [L5341] struct usb_device_id *ldvarg8 ; [L5342] void *tmp___7 ; [L5343] int tmp___8 ; [L5344] int tmp___9 ; [L5345] int tmp___10 ; [L5346] int tmp___11 ; [L4368] void *p ; [L4369] void *tmp ; [L4370] int tmp___0 ; [L4372] tmp___0 = __VERIFIER_nondet_int() [L4373] COND TRUE tmp___0 != 0 [L4374] return ((void *)0); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ref_cnt=0, usb_counter=0] [L5348] tmp = ldv_zalloc(1UL) [L5349] ldvarg7 = (unsigned char *)tmp [L5350] tmp___0 = __VERIFIER_nondet_uint() [L5351] ldvarg3 = tmp___0 [L5352] tmp___1 = __VERIFIER_nondet_uint() [L5353] ldvarg0 = tmp___1 [L4368] void *p ; [L4369] void *tmp ; [L4370] int tmp___0 ; [L4372] tmp___0 = __VERIFIER_nondet_int() [L4373] COND TRUE tmp___0 != 0 [L4374] return ((void *)0); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ref_cnt=0, usb_counter=0] [L5354] tmp___2 = ldv_zalloc(192UL) [L5355] ldvarg5 = (struct urb *)tmp___2 [L5356] tmp___3 = __VERIFIER_nondet_int() [L5357] ldvarg6 = tmp___3 [L5358] tmp___4 = __VERIFIER_nondet_uint() [L5359] ldvarg1 = tmp___4 [L4368] void *p ; [L4369] void *tmp ; [L4370] int tmp___0 ; [L4372] tmp___0 = __VERIFIER_nondet_int() [L4373] COND TRUE tmp___0 != 0 [L4374] return ((void *)0); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ref_cnt=0, usb_counter=0] [L5360] tmp___5 = ldv_zalloc(44UL) [L5361] ldvarg4 = (struct ktermios *)tmp___5 [L5362] tmp___6 = __VERIFIER_nondet_ulong() [L5363] ldvarg2 = tmp___6 [L4368] void *p ; [L4369] void *tmp ; [L4370] int tmp___0 ; [L4372] tmp___0 = __VERIFIER_nondet_int() [L4373] COND TRUE tmp___0 != 0 [L4374] return ((void *)0); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ref_cnt=0, usb_counter=0] [L5364] tmp___7 = ldv_zalloc(24UL) [L5365] ldvarg8 = (struct usb_device_id *)tmp___7 [L4351] void *p ; [L4352] void *tmp ; [L4353] int tmp___0 ; [L4355] tmp___0 = __VERIFIER_nondet_int() [L4356] COND FALSE !(tmp___0 != 0) [L4359] tmp = malloc(size) [L4360] p = tmp [L4347] COND FALSE !(!cond) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ref_cnt=0, usb_counter=0] [L4362] return (p); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ref_cnt=0, usb_counter=0] [L5754] ldv_latest_tty = ldv_malloc(sizeof(struct tty_struct___0)) [L5755] COND TRUE (unsigned long )ldv_latest_tty != (unsigned long )((void *)0) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ref_cnt=0, usb_counter=0] [L5367] ldv_state_variable_1 = 0 [L5368] ref_cnt = 0 [L5369] ldv_state_variable_0 = 1 [L5370] ldv_state_variable_2 = 0 VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ref_cnt=0, usb_counter=0] [L5372] tmp___8 = __VERIFIER_nondet_int() [L5374] case 0: [L5587] case 1: VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ref_cnt=0, usb_counter=0] [L5588] COND TRUE ldv_state_variable_0 != 0 [L5589] tmp___10 = __VERIFIER_nondet_int() [L5591] case 0: [L5599] case 1: VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ref_cnt=0, usb_counter=0] [L5600] COND TRUE ldv_state_variable_0 == 1 [L5260] int retval ; [L5884] return __VERIFIER_nondet_int(); [L5262] retval = usb_serial_register(& kobil_device) [L5263] COND FALSE !(retval != 0) [L4505] int tmp ; [L4507] CALL, EXPR ldv_usb_register_driver_5(driver, & __this_module, "kobil_sct") [L5687] ldv_func_ret_type___0 ldv_func_res ; [L5688] int tmp ; [L5870] return __VERIFIER_nondet_int(); [L5690] tmp = usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L5691] ldv_func_res = tmp [L5692] ldv_state_variable_2 = 1 [L5693] usb_counter = 0 [L5316] void *tmp ; [L4368] void *p ; [L4369] void *tmp ; [L4370] int tmp___0 ; [L4372] tmp___0 = __VERIFIER_nondet_int() [L4373] COND TRUE tmp___0 != 0 [L4374] return ((void *)0); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, ref_cnt=0, usb_counter=0] [L5318] tmp = ldv_zalloc(1248UL) [L5319] kobil_driver_group1 = (struct usb_interface *)tmp VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, ref_cnt=0, usb_counter=0] [L5695] return (ldv_func_res); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, ref_cnt=0, usb_counter=0] [L4507] tmp = ldv_usb_register_driver_5(driver, & __this_module, "kobil_sct") [L4508] return (tmp); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, ref_cnt=0, usb_counter=0] [L5267] retval = usb_register(& kobil_driver) [L5268] COND FALSE !(retval != 0) [L5273] return (0); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, ref_cnt=0, usb_counter=0] [L5601] ldv_retval_2 = kobil_init() [L5602] COND FALSE !(ldv_retval_2 != 0) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, ref_cnt=0, usb_counter=0] [L5607] COND TRUE ldv_retval_2 == 0 [L5608] ldv_state_variable_0 = 2 [L5609] ldv_state_variable_1 = 1 [L5298] void *tmp ; [L5299] void *tmp___0 ; [L5300] void *tmp___1 ; [L5301] void *tmp___2 ; [L4368] void *p ; [L4369] void *tmp ; [L4370] int tmp___0 ; [L4372] tmp___0 = __VERIFIER_nondet_int() [L4373] COND TRUE tmp___0 != 0 [L4374] return ((void *)0); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ref_cnt=0, usb_counter=0] [L5303] tmp = ldv_zalloc(336UL) [L5304] kobil_device_group0 = (struct file *)tmp [L4368] void *p ; [L4369] void *tmp ; [L4370] int tmp___0 ; [L4372] tmp___0 = __VERIFIER_nondet_int() [L4373] COND TRUE tmp___0 != 0 [L4374] return ((void *)0); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ref_cnt=0, usb_counter=0] [L5305] tmp___0 = ldv_zalloc(2704UL) [L5306] kobil_device_group1 = (struct tty_struct *)tmp___0 [L4368] void *p ; [L4369] void *tmp ; [L4370] int tmp___0 ; [L4372] tmp___0 = __VERIFIER_nondet_int() [L4373] COND TRUE tmp___0 != 0 [L4374] return ((void *)0); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ref_cnt=0, usb_counter=0] [L5307] tmp___1 = ldv_zalloc(280UL) [L5308] kobil_device_group2 = (struct usb_serial *)tmp___1 [L4368] void *p ; [L4369] void *tmp ; [L4370] int tmp___0 ; [L4372] tmp___0 = __VERIFIER_nondet_int() [L4373] COND TRUE tmp___0 != 0 [L4374] return ((void *)0); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ref_cnt=0, usb_counter=0] [L5309] tmp___2 = ldv_zalloc(2320UL) [L5310] kobil_device_group3 = (struct usb_serial_port *)tmp___2 VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ref_cnt=0, usb_counter=0] [L5372] tmp___8 = __VERIFIER_nondet_int() [L5374] case 0: VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ref_cnt=0, usb_counter=0] [L5375] COND TRUE ldv_state_variable_1 != 0 [L5376] tmp___9 = __VERIFIER_nondet_int() [L5378] case 0: [L5386] case 1: [L5396] case 2: [L5403] case 3: [L5410] case 4: [L5432] case 5: [L5442] case 6: [L5464] case 7: [L5486] case 8: [L5494] case 9: [L5516] case 10: [L5538] case 11: [L5560] case 12: [L5572] case 13: VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ref_cnt=0, usb_counter=0] [L5573] COND TRUE ldv_state_variable_1 == 1 [L5817] return __VERIFIER_nondet_int(); [L5575] ldv_state_variable_1 = 2 [L5576] ref_cnt = ref_cnt + 1 VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=2, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L5372] tmp___8 = __VERIFIER_nondet_int() [L5374] case 0: VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=2, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L5375] COND TRUE ldv_state_variable_1 != 0 [L5376] tmp___9 = __VERIFIER_nondet_int() [L5378] case 0: [L5386] case 1: VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=2, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L5387] COND TRUE ldv_state_variable_1 == 2 [L4636] int i ; [L4637] struct kobil_private *priv ; [L4638] struct usb_device *pdev ; [L4639] struct usb_host_config *actconfig ; [L4640] struct usb_interface *interface ; [L4641] struct usb_host_interface *altsetting ; [L4642] struct usb_host_endpoint *endpoint ; [L4643] void *tmp ; [L4644] int tmp___0 ; [L4645] int tmp___1 ; [L4300] void *ret ; [L4301] void *tmp ; [L4302] struct kmem_cache *s ; [L4303] struct kmem_cache *tmp___0 ; [L4304] void *tmp___1 ; VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=2, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4306] COND FALSE !(0) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=2, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4351] void *p ; [L4352] void *tmp ; [L4353] int tmp___0 ; [L4355] tmp___0 = __VERIFIER_nondet_int() [L4356] COND FALSE !(tmp___0 != 0) [L4359] tmp = malloc(size) [L4360] p = tmp [L4347] COND FALSE !(!cond) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=2, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4362] return (p); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=2, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4277] return ldv_malloc(size); [L4327] tmp___1 = __kmalloc(size, flags) [L4328] return (tmp___1); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=2, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4647] tmp = kmalloc(320UL, 208U) [L4648] priv = (struct kobil_private *)tmp VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=2, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4649] COND FALSE !((unsigned long )priv == (unsigned long )((struct kobil_private *)0)) [L4653] priv->filled = 0 [L4654] priv->cur_pos = 0 [L4655] EXPR serial->dev [L4655] EXPR (serial->dev)->descriptor.idProduct [L4655] priv->device_type = (serial->dev)->descriptor.idProduct [L4656] priv->device_type [L4657] case 8209: [L4671] serial->port[0] [L4672] EXPR serial->dev [L4672] pdev = serial->dev [L4673] EXPR pdev->actconfig [L4673] actconfig = pdev->actconfig [L4674] EXPR actconfig->interface[0] [L4674] interface = actconfig->interface[0] [L4675] EXPR interface->cur_altsetting [L4675] altsetting = interface->cur_altsetting [L4676] EXPR altsetting->endpoint [L4676] endpoint = altsetting->endpoint [L4677] i = 0 VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=2, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4703] EXPR altsetting->desc.bNumEndpoints VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=2, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4703] COND FALSE !((int )altsetting->desc.bNumEndpoints > i) [L4707] return (0); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=2, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L5388] ldv_retval_1 = kobil_startup(kobil_device_group2) [L5389] COND TRUE ldv_retval_1 == 0 [L5390] ldv_state_variable_1 = 3 VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L5372] tmp___8 = __VERIFIER_nondet_int() [L5374] case 0: VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L5375] COND TRUE ldv_state_variable_1 != 0 [L5376] tmp___9 = __VERIFIER_nondet_int() [L5378] case 0: [L5386] case 1: [L5396] case 2: [L5403] case 3: [L5410] case 4: [L5432] case 5: VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L5433] COND TRUE ldv_state_variable_1 == 3 [L4746] int result ; [L4747] struct kobil_private *priv ; [L4748] unsigned char *transfer_buffer ; [L4749] int transfer_buffer_length ; [L4750] int write_urb_transfer_buffer_length ; [L4751] void *tmp ; [L4752] void *tmp___0 ; [L4753] unsigned int tmp___1 ; [L4754] unsigned int tmp___2 ; [L4755] unsigned int tmp___3 ; [L4756] unsigned int tmp___4 ; [L4758] result = 0 [L4759] transfer_buffer_length = 8 [L4760] write_urb_transfer_buffer_length = 8 VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4761] COND FALSE !(debug != 0) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4549] void *tmp ; [L4351] void *p ; [L4352] void *tmp ; [L4353] int tmp___0 ; [L4355] tmp___0 = __VERIFIER_nondet_int() [L4356] COND TRUE tmp___0 != 0 [L4357] return ((void *)0); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L5799] return ldv_malloc(0UL); [L4551] tmp = dev_get_drvdata((struct device const *)(& port->dev)) [L4552] return (tmp); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4766] tmp = usb_get_serial_port_data(port) [L4767] priv = (struct kobil_private *)tmp [L4768] EXPR port->interrupt_in_urb [L4768] EXPR port->serial [L4768] EXPR (port->serial)->dev [L4768] (port->interrupt_in_urb)->dev = (port->serial)->dev [L4334] void *tmp ; [L4300] void *ret ; [L4301] void *tmp ; [L4302] struct kmem_cache *s ; [L4303] struct kmem_cache *tmp___0 ; [L4304] void *tmp___1 ; VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4306] COND FALSE !(0) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4351] void *p ; [L4352] void *tmp ; [L4353] int tmp___0 ; [L4355] tmp___0 = __VERIFIER_nondet_int() [L4356] COND FALSE !(tmp___0 != 0) [L4359] tmp = malloc(size) [L4360] p = tmp [L4347] COND FALSE !(!cond) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4362] return (p); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4277] return ldv_malloc(size); [L4327] tmp___1 = __kmalloc(size, flags) [L4328] return (tmp___1); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4336] tmp = kmalloc(size, flags | 32768U) [L4337] return (tmp); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4769] tmp___0 = kzalloc((size_t )transfer_buffer_length, 208U) [L4770] transfer_buffer = (unsigned char *)tmp___0 VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4771] COND FALSE !((unsigned long )transfer_buffer == (unsigned long )((unsigned char *)0U)) [L4775] EXPR port->write_urb VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4775] COND FALSE !((unsigned long )port->write_urb == (unsigned long )((struct urb *)0)) [L4794] EXPR port->write_urb [L4300] void *ret ; [L4301] void *tmp ; [L4302] struct kmem_cache *s ; [L4303] struct kmem_cache *tmp___0 ; [L4304] void *tmp___1 ; VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4306] COND FALSE !(0) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4351] void *p ; [L4352] void *tmp ; [L4353] int tmp___0 ; [L4355] tmp___0 = __VERIFIER_nondet_int() [L4356] COND TRUE tmp___0 != 0 [L4357] return ((void *)0); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4277] return ldv_malloc(size); [L4327] tmp___1 = __kmalloc(size, flags) [L4328] return (tmp___1); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4794-L4795] (port->write_urb)->transfer_buffer = kmalloc((size_t )write_urb_transfer_buffer_length, 208U) [L4796] EXPR port->write_urb [L4796] EXPR (port->write_urb)->transfer_buffer VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4796] COND FALSE !((unsigned long )(port->write_urb)->transfer_buffer == (unsigned long )((void *)0)) [L4803] EXPR port->serial [L4803] EXPR (port->serial)->dev [L4544] EXPR dev->devnum [L4544] return ((unsigned int )(dev->devnum << 8) | (endpoint << 15)); [L4803] tmp___1 = __create_pipe((port->serial)->dev, 0U) [L4804] EXPR port->serial [L4804] EXPR (port->serial)->dev [L5854] return __VERIFIER_nondet_int(); [L4804-L4806] result = usb_control_msg((port->serial)->dev, tmp___1 | 2147483776U, 16, 194, 2, 0, (void *)transfer_buffer, (int )((__u16 )transfer_buffer_length), 500) [L4807] COND FALSE !(debug != 0) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4812] COND FALSE !(debug != 0) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4817] EXPR port->serial [L4817] EXPR (port->serial)->dev [L4544] EXPR dev->devnum [L4544] return ((unsigned int )(dev->devnum << 8) | (endpoint << 15)); [L4817] tmp___2 = __create_pipe((port->serial)->dev, 0U) [L4818] EXPR port->serial [L4818] EXPR (port->serial)->dev [L5854] return __VERIFIER_nondet_int(); [L4818-L4820] result = usb_control_msg((port->serial)->dev, tmp___2 | 2147483776U, 16, 194, 1, 0, (void *)transfer_buffer, (int )((__u16 )transfer_buffer_length), 500) [L4821] COND FALSE !(debug != 0) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4826] COND FALSE !(debug != 0) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4831] EXPR priv->device_type [L4831] (unsigned int )priv->device_type == 8209U || (unsigned int )priv->device_type == 8210U [L4831] EXPR priv->device_type [L4831] (unsigned int )priv->device_type == 8209U || (unsigned int )priv->device_type == 8210U VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4831] COND FALSE !((unsigned int )priv->device_type == 8209U || (unsigned int )priv->device_type == 8210U) [L4850] EXPR priv->device_type [L4850] EXPR (unsigned int )priv->device_type == 120U || (unsigned int )priv->device_type == 8209U [L4850] EXPR priv->device_type [L4850] EXPR (unsigned int )priv->device_type == 120U || (unsigned int )priv->device_type == 8209U VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4850] ((unsigned int )priv->device_type == 120U || (unsigned int )priv->device_type == 8209U) || (unsigned int )priv->device_type == 129U [L4850] EXPR priv->device_type [L4850] ((unsigned int )priv->device_type == 120U || (unsigned int )priv->device_type == 8209U) || (unsigned int )priv->device_type == 129U VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4850] COND FALSE !(((unsigned int )priv->device_type == 120U || (unsigned int )priv->device_type == 8209U) || (unsigned int )priv->device_type == 129U) [L4860] return (0); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=3, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L5434] ldv_retval_0 = kobil_open(kobil_device_group1, kobil_device_group3) [L5435] COND TRUE ldv_retval_0 == 0 [L5436] ldv_state_variable_1 = 4 VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=4, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L5372] tmp___8 = __VERIFIER_nondet_int() [L5374] case 0: VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=4, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L5375] COND TRUE ldv_state_variable_1 != 0 [L5376] tmp___9 = __VERIFIER_nondet_int() [L5378] case 0: [L5386] case 1: [L5396] case 2: VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=4, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L5397] COND TRUE ldv_state_variable_1 == 4 [L4884] int result ; [L4885] struct usb_serial_port *port ; [L4886] struct tty_struct *tty ; [L4887] unsigned char *data ; [L4888] int status ; [L4890] EXPR urb->context [L4890] port = (struct usb_serial_port *)urb->context [L4891] EXPR urb->transfer_buffer [L4891] data = (unsigned char *)urb->transfer_buffer [L4892] EXPR urb->status [L4892] status = urb->status [L4893] COND FALSE !(debug != 0) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=4, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4898] COND FALSE !(status != 0) [L5700] ldv_func_ret_type___1 ldv_func_res ; [L5701] struct tty_struct *tmp ; [L4351] void *p ; [L4352] void *tmp ; [L4353] int tmp___0 ; [L4355] tmp___0 = __VERIFIER_nondet_int() [L4356] COND TRUE tmp___0 != 0 [L4357] return ((void *)0); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=4, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L5847] return ldv_malloc(sizeof(struct tty_struct)); [L5703] tmp = tty_port_tty_get(ldv_func_arg1) [L5704] ldv_func_res = tmp [L5776] ldv_latest_tty = tty VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=4, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L5706] return (ldv_func_res); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=4, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4907] tty = ldv_tty_port_tty_get_6(& port->port) [L4908] EXPR urb->actual_length VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=4, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4908] COND TRUE urb->actual_length != 0U [L4909] urb->actual_length [L5666] int tmp ; [L5783] COND FALSE !((unsigned long )tty != (unsigned long )ldv_latest_tty || tty) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=4, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] [L4403] reach_error() VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={55340232221128654858:55340232221128654873}, debug=0, id_table={18446744073709551821:0}, kobil_device={18446744073709551797:0}, kobil_device_group0={0:0}, kobil_device_group1={0:0}, kobil_device_group2={0:0}, kobil_device_group3={0:0}, kobil_driver={18446744073709551729:0}, kobil_driver_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_latest_tty={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=4, ldv_state_variable_2=1, ref_cnt=1, usb_counter=0] - UnprovableResult [Line: 4403]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 4403]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 4403]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 4403]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 4403]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 4403]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 4403]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 4403]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 4403]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 4403]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1817 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 88928.23ms, OverallIterations: 18, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 66.00ms, AutomataDifference: 65377.13ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 32.75ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 26 mSolverCounterUnknown, 43448 SdHoareTripleChecker+Valid, 61340.07ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43448 mSDsluCounter, 86717 SdHoareTripleChecker+Invalid, 58842.84ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 58735 mSDsCounter, 501 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3186 IncrementalHoareTripleChecker+Invalid, 3713 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 501 mSolverCounterUnsat, 27982 mSDtfsCounter, 3186 mSolverCounterSat, 121.03ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 354 GetRequests, 265 SyntacticMatches, 1 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 1006.33ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2352occurred in iteration=17, InterpolantAutomatonStates: 110, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 1412.66ms AutomataMinimizationTime, 17 MinimizatonAttempts, 48148 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 359.76ms SsaConstructionTime, 16232.84ms SatisfiabilityAnalysisTime, 2753.62ms InterpolantComputationTime, 2097 NumberOfCodeBlocks, 2097 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1921 ConstructedInterpolants, 0 QuantifiedInterpolants, 6477 SizeOfPredicates, 7 NumberOfNonLiveVariables, 3812 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 19 InterpolantComputations, 17 PerfectInterpolantSequences, 554/566 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-05 17:17:05,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -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 -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d0954289a294fb2be404f98afcefa652a2fbf60d586d07e7d68c419183f4ff07 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 17:17:07,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 17:17:07,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 17:17:07,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 17:17:07,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 17:17:07,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 17:17:07,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 17:17:07,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 17:17:07,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 17:17:07,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 17:17:07,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 17:17:07,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 17:17:07,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 17:17:07,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 17:17:07,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 17:17:07,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 17:17:07,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 17:17:07,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 17:17:07,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 17:17:07,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 17:17:07,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 17:17:07,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 17:17:07,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 17:17:07,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 17:17:07,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 17:17:07,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 17:17:07,461 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 17:17:07,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 17:17:07,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 17:17:07,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 17:17:07,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 17:17:07,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 17:17:07,465 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 17:17:07,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 17:17:07,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 17:17:07,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 17:17:07,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 17:17:07,467 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 17:17:07,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 17:17:07,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 17:17:07,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 17:17:07,469 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-05 17:17:07,496 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 17:17:07,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 17:17:07,497 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 17:17:07,497 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 17:17:07,499 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 17:17:07,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 17:17:07,499 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 17:17:07,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 17:17:07,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 17:17:07,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 17:17:07,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 17:17:07,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 17:17:07,500 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-05 17:17:07,500 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-05 17:17:07,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 17:17:07,500 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 17:17:07,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 17:17:07,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 17:17:07,500 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 17:17:07,500 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 17:17:07,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 17:17:07,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 17:17:07,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 17:17:07,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 17:17:07,501 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-05 17:17:07,501 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-05 17:17:07,501 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 17:17:07,501 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 17:17:07,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 17:17:07,501 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 17:17:07,501 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-05 17:17:07,501 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0954289a294fb2be404f98afcefa652a2fbf60d586d07e7d68c419183f4ff07 [2021-11-05 17:17:07,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 17:17:07,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 17:17:07,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 17:17:07,774 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 17:17:07,776 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 17:17:07,777 INFO L432 ainManager$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 [2021-11-05 17:17:07,849 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/791ff739c/ade05edd5e2546cc8dbcbe4851610da7/FLAG1d9e5644a [2021-11-05 17:17:08,416 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 17:17:08,417 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 [2021-11-05 17:17:08,437 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/791ff739c/ade05edd5e2546cc8dbcbe4851610da7/FLAG1d9e5644a [2021-11-05 17:17:08,820 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/791ff739c/ade05edd5e2546cc8dbcbe4851610da7 [2021-11-05 17:17:08,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 17:17:08,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 17:17:08,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 17:17:08,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 17:17:08,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 17:17:08,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 05:17:08" (1/1) ... [2021-11-05 17:17:08,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34a2c2c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:08, skipping insertion in model container [2021-11-05 17:17:08,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 05:17:08" (1/1) ... [2021-11-05 17:17:08,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 17:17:08,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 17:17:09,211 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3507] [2021-11-05 17:17:09,212 WARN L1236 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] [2021-11-05 17:17:09,212 WARN L1236 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] [2021-11-05 17:17:09,213 WARN L1236 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] [2021-11-05 17:17:09,213 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3516] [2021-11-05 17:17:09,215 WARN L1236 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] [2021-11-05 17:17:09,215 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3524] [2021-11-05 17:17:09,216 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3527] [2021-11-05 17:17:09,225 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3940] [2021-11-05 17:17:09,226 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3941] [2021-11-05 17:17:09,226 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3942] [2021-11-05 17:17:09,227 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3943] [2021-11-05 17:17:09,227 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3944] [2021-11-05 17:17:09,227 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3945] [2021-11-05 17:17:09,385 WARN L228 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] [2021-11-05 17:17:09,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 17:17:09,767 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 17:17:09,874 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3507] [2021-11-05 17:17:09,874 WARN L1236 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] [2021-11-05 17:17:09,874 WARN L1236 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] [2021-11-05 17:17:09,874 WARN L1236 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] [2021-11-05 17:17:09,875 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3516] [2021-11-05 17:17:09,875 WARN L1236 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] [2021-11-05 17:17:09,875 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3524] [2021-11-05 17:17:09,876 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3527] [2021-11-05 17:17:09,894 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3940] [2021-11-05 17:17:09,895 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3941] [2021-11-05 17:17:09,895 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3942] [2021-11-05 17:17:09,895 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3943] [2021-11-05 17:17:09,896 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3944] [2021-11-05 17:17:09,896 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3945] [2021-11-05 17:17:09,964 WARN L228 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] [2021-11-05 17:17:10,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 17:17:10,198 INFO L208 MainTranslator]: Completed translation [2021-11-05 17:17:10,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:10 WrapperNode [2021-11-05 17:17:10,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 17:17:10,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 17:17:10,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 17:17:10,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 17:17:10,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:10" (1/1) ... [2021-11-05 17:17:10,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:10" (1/1) ... [2021-11-05 17:17:10,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 17:17:10,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 17:17:10,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 17:17:10,453 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 17:17:10,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:10" (1/1) ... [2021-11-05 17:17:10,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:10" (1/1) ... [2021-11-05 17:17:10,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:10" (1/1) ... [2021-11-05 17:17:10,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:10" (1/1) ... [2021-11-05 17:17:10,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:10" (1/1) ... [2021-11-05 17:17:10,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:10" (1/1) ... [2021-11-05 17:17:10,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:10" (1/1) ... [2021-11-05 17:17:10,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 17:17:10,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 17:17:10,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 17:17:10,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 17:17:10,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:10" (1/1) ... [2021-11-05 17:17:10,852 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 17:17:10,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 17:17:10,872 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) [2021-11-05 17:17:10,889 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 [2021-11-05 17:17:10,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-05 17:17:10,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-05 17:17:10,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 17:17:10,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-05 17:17:10,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 17:17:10,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-05 17:17:10,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-05 17:17:10,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-05 17:17:10,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-05 17:17:10,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 17:17:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2021-11-05 17:17:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 17:17:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 17:17:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-05 17:17:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-05 17:17:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-05 17:17:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 17:17:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-05 17:17:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-05 17:17:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 17:17:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-05 17:17:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 17:17:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-05 17:17:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-05 17:17:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-05 17:17:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-05 17:17:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-05 17:17:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 17:17:10,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 17:17:46,822 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 17:17:46,823 INFO L299 CfgBuilder]: Removed 1401 assume(true) statements. [2021-11-05 17:17:46,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 05:17:46 BoogieIcfgContainer [2021-11-05 17:17:46,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 17:17:46,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 17:17:46,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 17:17:46,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 17:17:46,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 05:17:08" (1/3) ... [2021-11-05 17:17:46,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab0f22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 05:17:46, skipping insertion in model container [2021-11-05 17:17:46,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:10" (2/3) ... [2021-11-05 17:17:46,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab0f22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 05:17:46, skipping insertion in model container [2021-11-05 17:17:46,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 05:17:46" (3/3) ... [2021-11-05 17:17:46,831 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i [2021-11-05 17:17:46,835 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 17:17:46,835 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-05 17:17:46,871 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 17:17:46,876 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 17:17:46,876 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-05 17:17:46,941 INFO L276 IsEmpty]: Start isEmpty. Operand has 1817 states, 1805 states have (on average 1.5501385041551246) internal successors, (2798), 1816 states have internal predecessors, (2798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:17:46,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-05 17:17:46,949 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:17:46,950 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:17:46,950 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:17:46,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:17:46,955 INFO L85 PathProgramCache]: Analyzing trace with hash 666057958, now seen corresponding path program 1 times [2021-11-05 17:17:46,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 17:17:46,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499553672] [2021-11-05 17:17:46,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:17:46,966 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 17:17:46,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 17:17:46,968 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 17:17:46,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-05 17:17:47,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:17:47,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-05 17:17:47,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:17:48,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:17:48,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 17:17:49,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:17:49,073 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 17:17:49,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499553672] [2021-11-05 17:17:49,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [499553672] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 17:17:49,081 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:17:49,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-05 17:17:49,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366097273] [2021-11-05 17:17:49,084 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 17:17:49,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 17:17:49,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 17:17:49,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 17:17:49,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-05 17:17:49,118 INFO L87 Difference]: Start difference. First operand has 1817 states, 1805 states have (on average 1.5501385041551246) internal successors, (2798), 1816 states have internal predecessors, (2798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:17:54,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:17:54,288 INFO L93 Difference]: Finished difference Result 3482 states and 5201 transitions. [2021-11-05 17:17:54,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 17:17:54,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-05 17:17:54,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:17:54,305 INFO L225 Difference]: With dead ends: 3482 [2021-11-05 17:17:54,305 INFO L226 Difference]: Without dead ends: 1644 [2021-11-05 17:17:54,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 809.66ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-05 17:17:54,328 INFO L933 BasicCegarLoop]: 1446 mSDtfsCounter, 2110 mSDsluCounter, 3865 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4347.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2110 SdHoareTripleChecker+Valid, 5311 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.84ms SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4662.34ms IncrementalHoareTripleChecker+Time [2021-11-05 17:17:54,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2110 Valid, 5311 Invalid, 380 Unknown, 0 Unchecked, 20.84ms Time], IncrementalHoareTripleChecker [98 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 4662.34ms Time] [2021-11-05 17:17:54,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1644 states. [2021-11-05 17:17:54,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1644 to 890. [2021-11-05 17:17:54,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 890 states, 879 states have (on average 1.3902161547212741) internal successors, (1222), 889 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:17:54,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1222 transitions. [2021-11-05 17:17:54,420 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1222 transitions. Word has length 31 [2021-11-05 17:17:54,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:17:54,421 INFO L470 AbstractCegarLoop]: Abstraction has 890 states and 1222 transitions. [2021-11-05 17:17:54,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:17:54,421 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1222 transitions. [2021-11-05 17:17:54,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-05 17:17:54,428 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:17:54,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:17:54,470 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-05 17:17:54,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 17:17:54,653 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:17:54,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:17:54,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1572646806, now seen corresponding path program 1 times [2021-11-05 17:17:54,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 17:17:54,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073041595] [2021-11-05 17:17:54,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:17:54,656 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 17:17:54,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 17:17:54,657 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 17:17:54,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-05 17:17:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:17:55,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 17:17:55,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:17:55,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:17:55,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 17:17:56,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:17:56,137 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 17:17:56,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2073041595] [2021-11-05 17:17:56,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2073041595] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 17:17:56,138 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:17:56,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-05 17:17:56,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790077757] [2021-11-05 17:17:56,138 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 17:17:56,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:17:56,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 17:17:56,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:17:56,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:17:56,140 INFO L87 Difference]: Start difference. First operand 890 states and 1222 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:17:58,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:17:58,130 INFO L93 Difference]: Finished difference Result 1793 states and 2471 transitions. [2021-11-05 17:17:58,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:17:58,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-05 17:17:58,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:17:58,133 INFO L225 Difference]: With dead ends: 1793 [2021-11-05 17:17:58,133 INFO L226 Difference]: Without dead ends: 931 [2021-11-05 17:17:58,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 53.44ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:17:58,135 INFO L933 BasicCegarLoop]: 1221 mSDtfsCounter, 85 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1823.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 2309 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.26ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1952.74ms IncrementalHoareTripleChecker+Time [2021-11-05 17:17:58,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 2309 Invalid, 104 Unknown, 0 Unchecked, 5.26ms Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 1952.74ms Time] [2021-11-05 17:17:58,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2021-11-05 17:17:58,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 931. [2021-11-05 17:17:58,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 920 states have (on average 1.391304347826087) internal successors, (1280), 930 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:17:58,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1280 transitions. [2021-11-05 17:17:58,153 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1280 transitions. Word has length 33 [2021-11-05 17:17:58,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:17:58,153 INFO L470 AbstractCegarLoop]: Abstraction has 931 states and 1280 transitions. [2021-11-05 17:17:58,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:17:58,154 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1280 transitions. [2021-11-05 17:17:58,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-05 17:17:58,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:17:58,156 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:17:58,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-05 17:17:58,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 17:17:58,375 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:17:58,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:17:58,376 INFO L85 PathProgramCache]: Analyzing trace with hash 516484420, now seen corresponding path program 1 times [2021-11-05 17:17:58,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 17:17:58,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [303001659] [2021-11-05 17:17:58,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:17:58,377 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 17:17:58,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 17:17:58,379 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 17:17:58,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-05 17:17:59,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:17:59,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 934 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-05 17:17:59,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:17:59,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:17:59,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 17:18:00,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:18:00,425 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 17:18:00,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [303001659] [2021-11-05 17:18:00,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [303001659] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 17:18:00,426 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:18:00,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-05 17:18:00,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831553998] [2021-11-05 17:18:00,428 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 17:18:00,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 17:18:00,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 17:18:00,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 17:18:00,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:18:00,430 INFO L87 Difference]: Start difference. First operand 931 states and 1280 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:18:02,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:18:03,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:18:03,356 INFO L93 Difference]: Finished difference Result 2719 states and 3752 transitions. [2021-11-05 17:18:03,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 17:18:03,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-05 17:18:03,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:18:03,361 INFO L225 Difference]: With dead ends: 2719 [2021-11-05 17:18:03,362 INFO L226 Difference]: Without dead ends: 1802 [2021-11-05 17:18:03,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 589.80ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-05 17:18:03,365 INFO L933 BasicCegarLoop]: 2381 mSDtfsCounter, 1166 mSDsluCounter, 5960 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2434.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 8341 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.39ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2521.50ms IncrementalHoareTripleChecker+Time [2021-11-05 17:18:03,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1166 Valid, 8341 Invalid, 28 Unknown, 0 Unchecked, 5.39ms Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2521.50ms Time] [2021-11-05 17:18:03,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2021-11-05 17:18:03,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 927. [2021-11-05 17:18:03,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 916 states have (on average 1.388646288209607) internal successors, (1272), 926 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:18:03,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1272 transitions. [2021-11-05 17:18:03,387 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1272 transitions. Word has length 54 [2021-11-05 17:18:03,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:18:03,387 INFO L470 AbstractCegarLoop]: Abstraction has 927 states and 1272 transitions. [2021-11-05 17:18:03,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:18:03,388 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1272 transitions. [2021-11-05 17:18:03,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-05 17:18:03,388 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:18:03,389 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:18:03,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-05 17:18:03,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 17:18:03,603 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:18:03,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:18:03,604 INFO L85 PathProgramCache]: Analyzing trace with hash 822335382, now seen corresponding path program 1 times [2021-11-05 17:18:03,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 17:18:03,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019943206] [2021-11-05 17:18:03,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:18:03,605 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 17:18:03,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 17:18:03,608 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 17:18:03,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-05 17:18:04,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:18:04,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 980 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 17:18:04,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:18:05,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:18:05,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 17:18:05,927 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:18:05,927 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 17:18:05,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019943206] [2021-11-05 17:18:05,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2019943206] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 17:18:05,927 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:18:05,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-05 17:18:05,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880701778] [2021-11-05 17:18:05,930 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 17:18:05,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 17:18:05,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 17:18:05,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 17:18:05,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:18:05,932 INFO L87 Difference]: Start difference. First operand 927 states and 1272 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:18:08,094 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:18:11,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:18:11,764 INFO L93 Difference]: Finished difference Result 2001 states and 2812 transitions. [2021-11-05 17:18:11,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 17:18:11,765 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-05 17:18:11,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:18:11,769 INFO L225 Difference]: With dead ends: 2001 [2021-11-05 17:18:11,769 INFO L226 Difference]: Without dead ends: 1102 [2021-11-05 17:18:11,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 148.10ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:18:11,772 INFO L933 BasicCegarLoop]: 1213 mSDtfsCounter, 932 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 107 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5497.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 2543 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.04ms SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5774.56ms IncrementalHoareTripleChecker+Time [2021-11-05 17:18:11,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [932 Valid, 2543 Invalid, 296 Unknown, 0 Unchecked, 4.04ms Time], IncrementalHoareTripleChecker [107 Valid, 188 Invalid, 1 Unknown, 0 Unchecked, 5774.56ms Time] [2021-11-05 17:18:11,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2021-11-05 17:18:11,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1102. [2021-11-05 17:18:11,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 1091 states have (on average 1.4005499541704858) internal successors, (1528), 1101 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:18:11,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1528 transitions. [2021-11-05 17:18:11,794 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1528 transitions. Word has length 60 [2021-11-05 17:18:11,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:18:11,795 INFO L470 AbstractCegarLoop]: Abstraction has 1102 states and 1528 transitions. [2021-11-05 17:18:11,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:18:11,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1528 transitions. [2021-11-05 17:18:11,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-05 17:18:11,796 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:18:11,797 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:18:11,819 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-05 17:18:12,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 17:18:12,020 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:18:12,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:18:12,020 INFO L85 PathProgramCache]: Analyzing trace with hash -607684, now seen corresponding path program 1 times [2021-11-05 17:18:12,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 17:18:12,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [890981484] [2021-11-05 17:18:12,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:18:12,021 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 17:18:12,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 17:18:12,023 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 17:18:12,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-05 17:18:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:18:12,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 983 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 17:18:12,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:18:13,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:18:13,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 17:18:13,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:18:13,128 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 17:18:13,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [890981484] [2021-11-05 17:18:13,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [890981484] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 17:18:13,128 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:18:13,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-05 17:18:13,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456889010] [2021-11-05 17:18:13,129 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 17:18:13,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:18:13,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 17:18:13,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:18:13,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:18:13,129 INFO L87 Difference]: Start difference. First operand 1102 states and 1528 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:18:15,208 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:18:17,415 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:18:19,540 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:18:21,795 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:18:22,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:18:22,017 INFO L93 Difference]: Finished difference Result 2180 states and 3032 transitions. [2021-11-05 17:18:22,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:18:22,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-05 17:18:22,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:18:22,033 INFO L225 Difference]: With dead ends: 2180 [2021-11-05 17:18:22,033 INFO L226 Difference]: Without dead ends: 1106 [2021-11-05 17:18:22,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.04ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:18:22,035 INFO L933 BasicCegarLoop]: 1214 mSDtfsCounter, 0 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8358.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2408 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.25ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8863.69ms IncrementalHoareTripleChecker+Time [2021-11-05 17:18:22,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2408 Invalid, 26 Unknown, 0 Unchecked, 1.25ms Time], IncrementalHoareTripleChecker [6 Valid, 16 Invalid, 4 Unknown, 0 Unchecked, 8863.69ms Time] [2021-11-05 17:18:22,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2021-11-05 17:18:22,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 1106. [2021-11-05 17:18:22,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 1095 states have (on average 1.3990867579908677) internal successors, (1532), 1105 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:18:22,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1532 transitions. [2021-11-05 17:18:22,055 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1532 transitions. Word has length 64 [2021-11-05 17:18:22,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:18:22,055 INFO L470 AbstractCegarLoop]: Abstraction has 1106 states and 1532 transitions. [2021-11-05 17:18:22,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:18:22,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1532 transitions. [2021-11-05 17:18:22,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-05 17:18:22,056 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:18:22,056 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:18:22,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-05 17:18:22,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 17:18:22,268 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:18:22,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:18:22,269 INFO L85 PathProgramCache]: Analyzing trace with hash -548102, now seen corresponding path program 1 times [2021-11-05 17:18:22,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 17:18:22,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [945546760] [2021-11-05 17:18:22,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:18:22,271 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 17:18:22,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 17:18:22,272 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 17:18:22,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-05 17:18:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:18:23,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-05 17:18:23,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:18:30,352 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:18:30,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 17:18:35,109 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:18:35,109 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 17:18:35,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [945546760] [2021-11-05 17:18:35,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [945546760] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-05 17:18:35,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-05 17:18:35,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2021-11-05 17:18:35,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608494965] [2021-11-05 17:18:35,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:18:35,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-05 17:18:35,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 17:18:35,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-05 17:18:35,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-11-05 17:18:35,111 INFO L87 Difference]: Start difference. First operand 1106 states and 1532 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:18:37,222 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:18:39,231 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:18:41,238 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:18:43,243 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:18:59,528 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:19:14,605 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:19:17,551 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:19:42,726 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:20:16,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:20:16,184 INFO L93 Difference]: Finished difference Result 19612 states and 28029 transitions. [2021-11-05 17:20:16,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-05 17:20:16,185 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-05 17:20:16,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:20:16,235 INFO L225 Difference]: With dead ends: 19612 [2021-11-05 17:20:16,235 INFO L226 Difference]: Without dead ends: 19596 [2021-11-05 17:20:16,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 890 ImplicationChecksByTransitivity, 33934.63ms TimeCoverageRelationStatistics Valid=875, Invalid=2785, Unknown=0, NotChecked=0, Total=3660 [2021-11-05 17:20:16,240 INFO L933 BasicCegarLoop]: 3751 mSDtfsCounter, 30130 mSDsluCounter, 20239 mSDsCounter, 0 mSdLazyCounter, 2723 mSolverCounterSat, 744 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67357.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30130 SdHoareTripleChecker+Valid, 23990 SdHoareTripleChecker+Invalid, 3475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 88.78ms SdHoareTripleChecker+Time, 744 IncrementalHoareTripleChecker+Valid, 2723 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70914.76ms IncrementalHoareTripleChecker+Time [2021-11-05 17:20:16,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30130 Valid, 23990 Invalid, 3475 Unknown, 0 Unchecked, 88.78ms Time], IncrementalHoareTripleChecker [744 Valid, 2723 Invalid, 8 Unknown, 0 Unchecked, 70914.76ms Time] [2021-11-05 17:20:16,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19596 states. [2021-11-05 17:20:16,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19596 to 2136. [2021-11-05 17:20:16,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2136 states, 2125 states have (on average 1.4028235294117648) internal successors, (2981), 2135 states have internal predecessors, (2981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:16,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2136 states to 2136 states and 2981 transitions. [2021-11-05 17:20:16,391 INFO L78 Accepts]: Start accepts. Automaton has 2136 states and 2981 transitions. Word has length 64 [2021-11-05 17:20:16,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:20:16,392 INFO L470 AbstractCegarLoop]: Abstraction has 2136 states and 2981 transitions. [2021-11-05 17:20:16,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:16,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2136 states and 2981 transitions. [2021-11-05 17:20:16,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-05 17:20:16,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:20:16,393 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-05 17:20:16,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-05 17:20:16,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 17:20:16,616 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:20:16,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:20:16,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1346059703, now seen corresponding path program 1 times [2021-11-05 17:20:16,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 17:20:16,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032702407] [2021-11-05 17:20:16,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:20:16,618 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 17:20:16,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 17:20:16,619 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 17:20:16,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-05 17:20:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:20:17,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-05 17:20:17,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:20:27,045 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-05 17:20:27,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 17:20:32,522 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-05 17:20:32,522 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 17:20:32,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2032702407] [2021-11-05 17:20:32,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2032702407] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 17:20:32,522 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-05 17:20:32,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-11-05 17:20:32,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929296264] [2021-11-05 17:20:32,522 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-05 17:20:32,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-05 17:20:32,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 17:20:32,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-05 17:20:32,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-11-05 17:20:32,523 INFO L87 Difference]: Start difference. First operand 2136 states and 2981 transitions. Second operand has 18 states, 18 states have (on average 7.611111111111111) internal successors, (137), 18 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:34,656 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:20:36,666 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:20:38,678 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:20:57,109 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:21:16,331 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:21:19,420 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:21:54,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:22:38,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:22:38,241 INFO L93 Difference]: Finished difference Result 36691 states and 52488 transitions. [2021-11-05 17:22:38,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-05 17:22:38,242 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.611111111111111) internal successors, (137), 18 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-05 17:22:38,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:22:38,303 INFO L225 Difference]: With dead ends: 36691 [2021-11-05 17:22:38,304 INFO L226 Difference]: Without dead ends: 36675 [2021-11-05 17:22:38,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 891 ImplicationChecksByTransitivity, 34595.23ms TimeCoverageRelationStatistics Valid=875, Invalid=2785, Unknown=0, NotChecked=0, Total=3660 [2021-11-05 17:22:38,314 INFO L933 BasicCegarLoop]: 3751 mSDtfsCounter, 40316 mSDsluCounter, 31857 mSDsCounter, 0 mSdLazyCounter, 4060 mSolverCounterSat, 836 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88487.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 40316 SdHoareTripleChecker+Valid, 35608 SdHoareTripleChecker+Invalid, 4903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 116.39ms SdHoareTripleChecker+Time, 836 IncrementalHoareTripleChecker+Valid, 4060 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 93356.60ms IncrementalHoareTripleChecker+Time [2021-11-05 17:22:38,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40316 Valid, 35608 Invalid, 4903 Unknown, 0 Unchecked, 116.39ms Time], IncrementalHoareTripleChecker [836 Valid, 4060 Invalid, 7 Unknown, 0 Unchecked, 93356.60ms Time] [2021-11-05 17:22:38,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36675 states. [2021-11-05 17:22:38,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36675 to 3119. [2021-11-05 17:22:38,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3108 states have (on average 1.4047619047619047) internal successors, (4366), 3118 states have internal predecessors, (4366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:22:38,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 4366 transitions. [2021-11-05 17:22:38,714 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 4366 transitions. Word has length 86 [2021-11-05 17:22:38,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:22:38,715 INFO L470 AbstractCegarLoop]: Abstraction has 3119 states and 4366 transitions. [2021-11-05 17:22:38,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.611111111111111) internal successors, (137), 18 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:22:38,716 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 4366 transitions. [2021-11-05 17:22:38,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-05 17:22:38,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:22:38,718 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-05 17:22:38,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-05 17:22:38,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 17:22:38,942 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:22:38,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:22:38,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1124767586, now seen corresponding path program 1 times [2021-11-05 17:22:38,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 17:22:38,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [567736917] [2021-11-05 17:22:38,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:22:38,944 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 17:22:38,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 17:22:38,946 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 17:22:38,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-05 17:22:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:22:39,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 1124 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-05 17:22:39,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:22:42,154 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-05 17:22:42,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 17:22:43,611 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-05 17:22:43,611 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 17:22:43,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [567736917] [2021-11-05 17:22:43,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [567736917] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 17:22:43,611 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-05 17:22:43,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-11-05 17:22:43,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235900863] [2021-11-05 17:22:43,611 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-05 17:22:43,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-05 17:22:43,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 17:22:43,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-05 17:22:43,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-05 17:22:43,612 INFO L87 Difference]: Start difference. First operand 3119 states and 4366 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:22:45,726 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:22:53,540 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:22:56,273 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:22:58,384 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:23:00,449 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:23:02,553 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:23:04,686 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:23:06,777 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:23:09,577 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:23:16,540 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:23:19,175 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:23:22,457 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:23:24,656 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:23:26,695 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:23:28,857 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:23:30,889 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:23:32,965 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:23:35,215 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:23:37,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:23:39,521 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:23:41,674 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:23:43,832 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:23:45,959 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:23:48,696 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:23:50,974 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:23:58,901 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:24:01,127 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:24:03,146 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:24:05,354 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:24:09,995 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:24:13,435 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:24:15,538 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:24:17,560 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:24:19,730 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:24:22,268 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:24:24,706 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:24:26,766 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:24:28,928 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:24:30,983 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:24:33,034 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:24:36,223 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:24:40,649 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:24:42,752 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:24:44,879 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:24:46,950 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:24:51,266 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:24:54,113 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:24:58,625 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:00,686 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:02,791 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:04,849 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:07,468 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:09,768 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:12,107 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:14,399 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:18,512 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:20,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:22,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:25:22,807 INFO L93 Difference]: Finished difference Result 26792 states and 37800 transitions. [2021-11-05 17:25:22,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-05 17:25:22,809 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-11-05 17:25:22,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:25:22,907 INFO L225 Difference]: With dead ends: 26792 [2021-11-05 17:25:22,907 INFO L226 Difference]: Without dead ends: 26776 [2021-11-05 17:25:22,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 5556.20ms TimeCoverageRelationStatistics Valid=298, Invalid=892, Unknown=0, NotChecked=0, Total=1190 [2021-11-05 17:25:22,916 INFO L933 BasicCegarLoop]: 8542 mSDtfsCounter, 10016 mSDsluCounter, 33555 mSDsCounter, 0 mSdLazyCounter, 1495 mSolverCounterSat, 53 mSolverCounterUnsat, 57 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 145617.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10016 SdHoareTripleChecker+Valid, 42097 SdHoareTripleChecker+Invalid, 1605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 44.29ms SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1495 IncrementalHoareTripleChecker+Invalid, 57 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 152778.59ms IncrementalHoareTripleChecker+Time [2021-11-05 17:25:22,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10016 Valid, 42097 Invalid, 1605 Unknown, 0 Unchecked, 44.29ms Time], IncrementalHoareTripleChecker [53 Valid, 1495 Invalid, 57 Unknown, 0 Unchecked, 152778.59ms Time] [2021-11-05 17:25:22,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26776 states. [2021-11-05 17:25:23,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26776 to 4127. [2021-11-05 17:25:23,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4127 states, 4116 states have (on average 1.4047619047619047) internal successors, (5782), 4126 states have internal predecessors, (5782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:25:23,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4127 states to 4127 states and 5782 transitions. [2021-11-05 17:25:23,281 INFO L78 Accepts]: Start accepts. Automaton has 4127 states and 5782 transitions. Word has length 89 [2021-11-05 17:25:23,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:25:23,281 INFO L470 AbstractCegarLoop]: Abstraction has 4127 states and 5782 transitions. [2021-11-05 17:25:23,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:25:23,282 INFO L276 IsEmpty]: Start isEmpty. Operand 4127 states and 5782 transitions. [2021-11-05 17:25:23,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-05 17:25:23,287 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:25:23,287 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:25:23,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-05 17:25:23,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 17:25:23,513 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:25:23,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:25:23,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1534045030, now seen corresponding path program 1 times [2021-11-05 17:25:23,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 17:25:23,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1757050079] [2021-11-05 17:25:23,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:25:23,515 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 17:25:23,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 17:25:23,517 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 17:25:23,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-05 17:25:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:25:24,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 17:25:24,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:25:25,063 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:25:25,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 17:25:25,761 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:25:25,762 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 17:25:25,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1757050079] [2021-11-05 17:25:25,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1757050079] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 17:25:25,762 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:25:25,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-05 17:25:25,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77874976] [2021-11-05 17:25:25,762 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 17:25:25,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 17:25:25,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 17:25:25,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 17:25:25,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:25:25,763 INFO L87 Difference]: Start difference. First operand 4127 states and 5782 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:25:27,874 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:31,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:25:31,569 INFO L93 Difference]: Finished difference Result 8930 states and 12660 transitions. [2021-11-05 17:25:31,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 17:25:31,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-11-05 17:25:31,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:25:31,576 INFO L225 Difference]: With dead ends: 8930 [2021-11-05 17:25:31,576 INFO L226 Difference]: Without dead ends: 4831 [2021-11-05 17:25:31,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 107.77ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:25:31,581 INFO L933 BasicCegarLoop]: 1241 mSDtfsCounter, 1252 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 104 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5308.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 2195 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.76ms SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5500.34ms IncrementalHoareTripleChecker+Time [2021-11-05 17:25:31,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1252 Valid, 2195 Invalid, 297 Unknown, 0 Unchecked, 2.76ms Time], IncrementalHoareTripleChecker [104 Valid, 192 Invalid, 1 Unknown, 0 Unchecked, 5500.34ms Time] [2021-11-05 17:25:31,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4831 states. [2021-11-05 17:25:31,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4831 to 4831. [2021-11-05 17:25:31,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4831 states, 4820 states have (on average 1.4012448132780082) internal successors, (6754), 4830 states have internal predecessors, (6754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:25:31,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4831 states to 4831 states and 6754 transitions. [2021-11-05 17:25:31,847 INFO L78 Accepts]: Start accepts. Automaton has 4831 states and 6754 transitions. Word has length 92 [2021-11-05 17:25:31,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:25:31,847 INFO L470 AbstractCegarLoop]: Abstraction has 4831 states and 6754 transitions. [2021-11-05 17:25:31,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:25:31,848 INFO L276 IsEmpty]: Start isEmpty. Operand 4831 states and 6754 transitions. [2021-11-05 17:25:31,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-05 17:25:31,851 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:25:31,851 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:25:31,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-05 17:25:32,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 17:25:32,071 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:25:32,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:25:32,072 INFO L85 PathProgramCache]: Analyzing trace with hash 914092133, now seen corresponding path program 1 times [2021-11-05 17:25:32,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 17:25:32,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1604188941] [2021-11-05 17:25:32,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:25:32,073 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 17:25:32,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 17:25:32,074 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 17:25:32,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-05 17:25:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:25:32,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-05 17:25:32,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:25:33,662 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-05 17:25:33,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 17:25:34,383 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-05 17:25:34,383 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 17:25:34,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1604188941] [2021-11-05 17:25:34,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1604188941] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 17:25:34,383 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:25:34,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-05 17:25:34,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145148389] [2021-11-05 17:25:34,384 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 17:25:34,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 17:25:34,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 17:25:34,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 17:25:34,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-05 17:25:34,384 INFO L87 Difference]: Start difference. First operand 4831 states and 6754 transitions. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:25:36,498 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:37,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:25:37,535 INFO L93 Difference]: Finished difference Result 13688 states and 18886 transitions. [2021-11-05 17:25:37,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 17:25:37,536 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-11-05 17:25:37,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:25:37,545 INFO L225 Difference]: With dead ends: 13688 [2021-11-05 17:25:37,545 INFO L226 Difference]: Without dead ends: 8885 [2021-11-05 17:25:37,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 553.99ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-05 17:25:37,549 INFO L933 BasicCegarLoop]: 1797 mSDtfsCounter, 2273 mSDsluCounter, 5379 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2360.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2273 SdHoareTripleChecker+Valid, 7176 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.68ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2407.85ms IncrementalHoareTripleChecker+Time [2021-11-05 17:25:37,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2273 Valid, 7176 Invalid, 21 Unknown, 0 Unchecked, 3.68ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 1 Unknown, 0 Unchecked, 2407.85ms Time] [2021-11-05 17:25:37,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8885 states. [2021-11-05 17:25:37,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8885 to 4839. [2021-11-05 17:25:37,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4839 states, 4828 states have (on average 1.4005799502899752) internal successors, (6762), 4838 states have internal predecessors, (6762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:25:37,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4839 states to 4839 states and 6762 transitions. [2021-11-05 17:25:37,802 INFO L78 Accepts]: Start accepts. Automaton has 4839 states and 6762 transitions. Word has length 107 [2021-11-05 17:25:37,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:25:37,802 INFO L470 AbstractCegarLoop]: Abstraction has 4839 states and 6762 transitions. [2021-11-05 17:25:37,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:25:37,802 INFO L276 IsEmpty]: Start isEmpty. Operand 4839 states and 6762 transitions. [2021-11-05 17:25:37,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-05 17:25:37,805 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:25:37,805 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1] [2021-11-05 17:25:37,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-05 17:25:38,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 17:25:38,031 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:25:38,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:25:38,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1068449267, now seen corresponding path program 1 times [2021-11-05 17:25:38,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 17:25:38,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978105079] [2021-11-05 17:25:38,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:25:38,033 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 17:25:38,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 17:25:38,034 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 17:25:38,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-05 17:25:38,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:25:39,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 1143 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-05 17:25:39,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:25:49,879 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-05 17:25:49,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 17:25:55,658 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-05 17:25:55,658 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 17:25:55,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978105079] [2021-11-05 17:25:55,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1978105079] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 17:25:55,658 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-05 17:25:55,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-11-05 17:25:55,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241617959] [2021-11-05 17:25:55,659 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-05 17:25:55,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-05 17:25:55,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 17:25:55,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-05 17:25:55,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-11-05 17:25:55,660 INFO L87 Difference]: Start difference. First operand 4839 states and 6762 transitions. Second operand has 18 states, 18 states have (on average 8.61111111111111) internal successors, (155), 18 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:25:57,770 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:25:59,777 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:26:01,787 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:26:03,793 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:26:21,446 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:26:36,679 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:26:56,866 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:27:27,007 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:28:00,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:28:00,847 INFO L93 Difference]: Finished difference Result 53471 states and 75989 transitions. [2021-11-05 17:28:00,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-05 17:28:00,849 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.61111111111111) internal successors, (155), 18 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-11-05 17:28:00,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:28:00,927 INFO L225 Difference]: With dead ends: 53471 [2021-11-05 17:28:00,928 INFO L226 Difference]: Without dead ends: 53455 [2021-11-05 17:28:00,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 890 ImplicationChecksByTransitivity, 32609.04ms TimeCoverageRelationStatistics Valid=875, Invalid=2785, Unknown=0, NotChecked=0, Total=3660 [2021-11-05 17:28:00,946 INFO L933 BasicCegarLoop]: 3758 mSDtfsCounter, 49947 mSDsluCounter, 30150 mSDsCounter, 0 mSdLazyCounter, 3846 mSolverCounterSat, 1317 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 87857.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 49947 SdHoareTripleChecker+Valid, 33908 SdHoareTripleChecker+Invalid, 5171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 107.58ms SdHoareTripleChecker+Time, 1317 IncrementalHoareTripleChecker+Valid, 3846 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92824.46ms IncrementalHoareTripleChecker+Time [2021-11-05 17:28:00,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49947 Valid, 33908 Invalid, 5171 Unknown, 0 Unchecked, 107.58ms Time], IncrementalHoareTripleChecker [1317 Valid, 3846 Invalid, 8 Unknown, 0 Unchecked, 92824.46ms Time] [2021-11-05 17:28:00,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53455 states. [2021-11-05 17:28:01,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53455 to 9576. [2021-11-05 17:28:01,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9576 states, 9565 states have (on average 1.4018818609513852) internal successors, (13409), 9575 states have internal predecessors, (13409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:28:01,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9576 states to 9576 states and 13409 transitions. [2021-11-05 17:28:01,874 INFO L78 Accepts]: Start accepts. Automaton has 9576 states and 13409 transitions. Word has length 107 [2021-11-05 17:28:01,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:28:01,875 INFO L470 AbstractCegarLoop]: Abstraction has 9576 states and 13409 transitions. [2021-11-05 17:28:01,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.61111111111111) internal successors, (155), 18 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:28:01,875 INFO L276 IsEmpty]: Start isEmpty. Operand 9576 states and 13409 transitions. [2021-11-05 17:28:01,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-05 17:28:01,880 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:28:01,880 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:28:01,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-05 17:28:02,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 17:28:02,112 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:28:02,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:28:02,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1761422566, now seen corresponding path program 1 times [2021-11-05 17:28:02,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 17:28:02,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [761379143] [2021-11-05 17:28:02,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:28:02,114 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 17:28:02,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 17:28:02,115 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 17:28:02,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-05 17:28:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:28:03,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-05 17:28:03,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:28:04,464 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-05 17:28:04,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 17:28:05,935 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-05 17:28:05,935 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 17:28:05,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [761379143] [2021-11-05 17:28:05,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [761379143] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 17:28:05,935 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:28:05,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-05 17:28:05,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596134425] [2021-11-05 17:28:05,936 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 17:28:05,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-05 17:28:05,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 17:28:05,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-05 17:28:05,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-05 17:28:05,936 INFO L87 Difference]: Start difference. First operand 9576 states and 13409 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:28:30,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:28:30,474 INFO L93 Difference]: Finished difference Result 65316 states and 89637 transitions. [2021-11-05 17:28:30,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-05 17:28:30,475 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-05 17:28:30,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:28:30,551 INFO L225 Difference]: With dead ends: 65316 [2021-11-05 17:28:30,552 INFO L226 Difference]: Without dead ends: 55768 [2021-11-05 17:28:30,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 4597.98ms TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2021-11-05 17:28:30,571 INFO L933 BasicCegarLoop]: 2150 mSDtfsCounter, 9046 mSDsluCounter, 16218 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16276.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9046 SdHoareTripleChecker+Valid, 18368 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.67ms SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16943.73ms IncrementalHoareTripleChecker+Time [2021-11-05 17:28:30,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9046 Valid, 18368 Invalid, 1171 Unknown, 0 Unchecked, 26.67ms Time], IncrementalHoareTripleChecker [85 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 16943.73ms Time] [2021-11-05 17:28:30,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55768 states. [2021-11-05 17:28:31,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55768 to 9608. [2021-11-05 17:28:31,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9608 states, 9597 states have (on average 1.4005418359904136) internal successors, (13441), 9607 states have internal predecessors, (13441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:28:31,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9608 states to 9608 states and 13441 transitions. [2021-11-05 17:28:31,611 INFO L78 Accepts]: Start accepts. Automaton has 9608 states and 13441 transitions. Word has length 112 [2021-11-05 17:28:31,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:28:31,612 INFO L470 AbstractCegarLoop]: Abstraction has 9608 states and 13441 transitions. [2021-11-05 17:28:31,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:28:31,612 INFO L276 IsEmpty]: Start isEmpty. Operand 9608 states and 13441 transitions. [2021-11-05 17:28:31,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-05 17:28:31,617 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:28:31,617 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:28:31,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-05 17:28:31,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 17:28:31,840 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:28:31,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:28:31,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1444370698, now seen corresponding path program 1 times [2021-11-05 17:28:31,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 17:28:31,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [270374125] [2021-11-05 17:28:31,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:28:31,842 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 17:28:31,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 17:28:31,843 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 17:28:31,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-05 17:28:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:28:32,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 1213 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 17:28:32,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:28:33,175 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 17:28:33,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 17:28:33,485 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 17:28:33,485 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 17:28:33,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [270374125] [2021-11-05 17:28:33,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [270374125] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 17:28:33,485 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:28:33,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-05 17:28:33,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308463148] [2021-11-05 17:28:33,485 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 17:28:33,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 17:28:33,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 17:28:33,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 17:28:33,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:28:33,486 INFO L87 Difference]: Start difference. First operand 9608 states and 13441 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:28:35,617 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:28:40,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:28:40,042 INFO L93 Difference]: Finished difference Result 19188 states and 26850 transitions. [2021-11-05 17:28:40,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 17:28:40,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-05 17:28:40,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:28:40,056 INFO L225 Difference]: With dead ends: 19188 [2021-11-05 17:28:40,056 INFO L226 Difference]: Without dead ends: 9608 [2021-11-05 17:28:40,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 118.70ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:28:40,067 INFO L933 BasicCegarLoop]: 1248 mSDtfsCounter, 1321 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5389.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.72ms SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5584.79ms IncrementalHoareTripleChecker+Time [2021-11-05 17:28:40,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1321 Valid, 2178 Invalid, 258 Unknown, 0 Unchecked, 3.72ms Time], IncrementalHoareTripleChecker [64 Valid, 193 Invalid, 1 Unknown, 0 Unchecked, 5584.79ms Time] [2021-11-05 17:28:40,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9608 states. [2021-11-05 17:28:41,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9608 to 9608. [2021-11-05 17:28:41,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9608 states, 9597 states have (on average 1.3671980827341879) internal successors, (13121), 9607 states have internal predecessors, (13121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:28:41,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9608 states to 9608 states and 13121 transitions. [2021-11-05 17:28:41,027 INFO L78 Accepts]: Start accepts. Automaton has 9608 states and 13121 transitions. Word has length 114 [2021-11-05 17:28:41,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:28:41,027 INFO L470 AbstractCegarLoop]: Abstraction has 9608 states and 13121 transitions. [2021-11-05 17:28:41,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:28:41,027 INFO L276 IsEmpty]: Start isEmpty. Operand 9608 states and 13121 transitions. [2021-11-05 17:28:41,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-05 17:28:41,032 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:28:41,033 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-05 17:28:41,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-05 17:28:41,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 17:28:41,255 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:28:41,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:28:41,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1599534550, now seen corresponding path program 1 times [2021-11-05 17:28:41,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 17:28:41,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125544541] [2021-11-05 17:28:41,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:28:41,257 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 17:28:41,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 17:28:41,258 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 17:28:41,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-05 17:28:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:28:42,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 1230 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 17:28:42,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:28:43,961 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:28:43,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 17:28:45,652 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:28:45,652 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 17:28:45,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125544541] [2021-11-05 17:28:45,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125544541] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 17:28:45,652 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:28:45,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-05 17:28:45,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076009725] [2021-11-05 17:28:45,652 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 17:28:45,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 17:28:45,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 17:28:45,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 17:28:45,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:28:45,653 INFO L87 Difference]: Start difference. First operand 9608 states and 13121 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:28:47,764 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:28:48,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:28:48,541 INFO L93 Difference]: Finished difference Result 16342 states and 22452 transitions. [2021-11-05 17:28:48,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 17:28:48,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-05 17:28:48,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:28:48,549 INFO L225 Difference]: With dead ends: 16342 [2021-11-05 17:28:48,549 INFO L226 Difference]: Without dead ends: 6642 [2021-11-05 17:28:48,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 118.62ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:28:48,557 INFO L933 BasicCegarLoop]: 1282 mSDtfsCounter, 1186 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2377.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1186 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.33ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2429.58ms IncrementalHoareTripleChecker+Time [2021-11-05 17:28:48,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1186 Valid, 1440 Invalid, 26 Unknown, 0 Unchecked, 1.33ms Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 1 Unknown, 0 Unchecked, 2429.58ms Time] [2021-11-05 17:28:48,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6642 states. [2021-11-05 17:28:49,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6642 to 5564. [2021-11-05 17:28:49,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5564 states, 5553 states have (on average 1.372411309202233) internal successors, (7621), 5563 states have internal predecessors, (7621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:28:49,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5564 states to 5564 states and 7621 transitions. [2021-11-05 17:28:49,029 INFO L78 Accepts]: Start accepts. Automaton has 5564 states and 7621 transitions. Word has length 116 [2021-11-05 17:28:49,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:28:49,030 INFO L470 AbstractCegarLoop]: Abstraction has 5564 states and 7621 transitions. [2021-11-05 17:28:49,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:28:49,030 INFO L276 IsEmpty]: Start isEmpty. Operand 5564 states and 7621 transitions. [2021-11-05 17:28:49,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-05 17:28:49,034 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:28:49,034 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:28:49,056 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-05 17:28:49,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 17:28:49,247 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:28:49,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:28:49,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1370524149, now seen corresponding path program 1 times [2021-11-05 17:28:49,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 17:28:49,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [779736123] [2021-11-05 17:28:49,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:28:49,249 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 17:28:49,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 17:28:49,251 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 17:28:49,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-05 17:28:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:28:50,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 1204 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 17:28:50,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:28:53,712 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-11-05 17:28:53,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 17:28:57,010 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-11-05 17:28:57,010 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 17:28:57,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [779736123] [2021-11-05 17:28:57,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [779736123] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 17:28:57,010 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:28:57,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-05 17:28:57,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62492584] [2021-11-05 17:28:57,010 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 17:28:57,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:28:57,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 17:28:57,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:28:57,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:28:57,011 INFO L87 Difference]: Start difference. First operand 5564 states and 7621 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:28:58,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:28:58,128 INFO L93 Difference]: Finished difference Result 11030 states and 15121 transitions. [2021-11-05 17:28:58,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:28:58,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2021-11-05 17:28:58,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:28:58,134 INFO L225 Difference]: With dead ends: 11030 [2021-11-05 17:28:58,134 INFO L226 Difference]: Without dead ends: 5564 [2021-11-05 17:28:58,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 55.74ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:28:58,139 INFO L933 BasicCegarLoop]: 1118 mSDtfsCounter, 1070 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 680.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.33ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 698.81ms IncrementalHoareTripleChecker+Time [2021-11-05 17:28:58,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1070 Valid, 1118 Invalid, 98 Unknown, 0 Unchecked, 1.33ms Time], IncrementalHoareTripleChecker [48 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 698.81ms Time] [2021-11-05 17:28:58,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5564 states. [2021-11-05 17:28:58,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5564 to 5564. [2021-11-05 17:28:58,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5564 states, 5553 states have (on average 1.328831262380695) internal successors, (7379), 5563 states have internal predecessors, (7379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:28:58,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5564 states to 5564 states and 7379 transitions. [2021-11-05 17:28:58,609 INFO L78 Accepts]: Start accepts. Automaton has 5564 states and 7379 transitions. Word has length 127 [2021-11-05 17:28:58,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:28:58,610 INFO L470 AbstractCegarLoop]: Abstraction has 5564 states and 7379 transitions. [2021-11-05 17:28:58,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:28:58,610 INFO L276 IsEmpty]: Start isEmpty. Operand 5564 states and 7379 transitions. [2021-11-05 17:28:58,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-05 17:28:58,614 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:28:58,614 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:28:58,642 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-11-05 17:28:58,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 17:28:58,827 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:28:58,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:28:58,828 INFO L85 PathProgramCache]: Analyzing trace with hash 905110581, now seen corresponding path program 1 times [2021-11-05 17:28:58,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 17:28:58,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904065940] [2021-11-05 17:28:58,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:28:58,829 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 17:28:58,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 17:28:58,830 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 17:28:58,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-05 17:28:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:28:59,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 1204 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-05 17:28:59,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:29:00,314 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-05 17:29:00,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 17:29:00,918 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-05 17:29:00,918 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 17:29:00,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904065940] [2021-11-05 17:29:00,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904065940] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 17:29:00,918 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:29:00,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-05 17:29:00,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895817408] [2021-11-05 17:29:00,919 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 17:29:00,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 17:29:00,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 17:29:00,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 17:29:00,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-05 17:29:00,920 INFO L87 Difference]: Start difference. First operand 5564 states and 7379 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:29:03,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:29:04,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:29:04,706 INFO L93 Difference]: Finished difference Result 18450 states and 24242 transitions. [2021-11-05 17:29:04,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 17:29:04,706 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2021-11-05 17:29:04,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:29:04,723 INFO L225 Difference]: With dead ends: 18450 [2021-11-05 17:29:04,724 INFO L226 Difference]: Without dead ends: 12984 [2021-11-05 17:29:04,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 547.24ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-05 17:29:04,732 INFO L933 BasicCegarLoop]: 1952 mSDtfsCounter, 2277 mSDsluCounter, 7000 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2397.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2277 SdHoareTripleChecker+Valid, 8952 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.96ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2448.43ms IncrementalHoareTripleChecker+Time [2021-11-05 17:29:04,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2277 Valid, 8952 Invalid, 26 Unknown, 0 Unchecked, 4.96ms Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 2448.43ms Time] [2021-11-05 17:29:04,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12984 states. [2021-11-05 17:29:05,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12984 to 5574. [2021-11-05 17:29:05,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5574 states, 5563 states have (on average 1.328240158188028) internal successors, (7389), 5573 states have internal predecessors, (7389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:29:05,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5574 states to 5574 states and 7389 transitions. [2021-11-05 17:29:05,299 INFO L78 Accepts]: Start accepts. Automaton has 5574 states and 7389 transitions. Word has length 127 [2021-11-05 17:29:05,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:29:05,299 INFO L470 AbstractCegarLoop]: Abstraction has 5574 states and 7389 transitions. [2021-11-05 17:29:05,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:29:05,299 INFO L276 IsEmpty]: Start isEmpty. Operand 5574 states and 7389 transitions. [2021-11-05 17:29:05,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-05 17:29:05,302 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:29:05,303 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:29:05,324 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-05 17:29:05,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 17:29:05,517 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 17:29:05,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:29:05,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1234313232, now seen corresponding path program 1 times [2021-11-05 17:29:05,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 17:29:05,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [598424242] [2021-11-05 17:29:05,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:29:05,519 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 17:29:05,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 17:29:05,528 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 17:29:05,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-05 17:29:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:29:06,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-05 17:29:06,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:29:19,685 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-05 17:29:19,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... Killed by 15