/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:54:44,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:54:44,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:54:44,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:54:44,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:54:44,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:54:44,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:54:44,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:54:44,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:54:44,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:54:44,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:54:44,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:54:44,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:54:44,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:54:44,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:54:44,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:54:44,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:54:44,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:54:44,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:54:44,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:54:44,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:54:44,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:54:44,439 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:54:44,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:54:44,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 08:54:44,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:54:44,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:54:44,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:54:44,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:54:44,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:54:44,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:54:44,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:54:44,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:54:44,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:54:44,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:54:44,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:54:44,465 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:54:44,521 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:54:44,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:54:44,526 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:54:44,526 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:54:44,527 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:54:44,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:54:44,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:54:44,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:54:44,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:54:44,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:54:44,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:54:44,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:54:44,530 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:54:44,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:54:44,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:54:44,530 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:54:44,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:54:44,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:54:44,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:54:44,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:54:44,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:54:44,532 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:54:44,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:54:44,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:54:44,533 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:54:44,533 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:54:44,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:54:44,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:54:45,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:54:45,005 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:54:45,005 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:54:45,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:54:45,101 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9085570e9/ae93f0fe3f254cf5923709b3cdaf7d76/FLAG8dd5904a4 [2020-12-22 08:54:46,054 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:54:46,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:54:46,108 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9085570e9/ae93f0fe3f254cf5923709b3cdaf7d76/FLAG8dd5904a4 [2020-12-22 08:54:46,575 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9085570e9/ae93f0fe3f254cf5923709b3cdaf7d76 [2020-12-22 08:54:46,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:54:46,582 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:54:46,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:54:46,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:54:46,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:54:46,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:54:46" (1/1) ... [2020-12-22 08:54:46,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d655d67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:54:46, skipping insertion in model container [2020-12-22 08:54:46,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:54:46" (1/1) ... [2020-12-22 08:54:46,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:54:46,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:54:47,251 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13127,13140] [2020-12-22 08:54:47,310 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17607,17620] [2020-12-22 08:54:47,336 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18899,18912] [2020-12-22 08:54:47,356 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19657,19670] [2020-12-22 08:54:47,378 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21277,21290] [2020-12-22 08:54:47,385 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22035,22048] [2020-12-22 08:54:47,393 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23121,23134] [2020-12-22 08:54:47,409 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25660,25673] [2020-12-22 08:54:47,417 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26421,26434] [2020-12-22 08:54:47,424 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27510,27523] [2020-12-22 08:54:47,437 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29515,29528] [2020-12-22 08:54:47,459 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33438,33451] [2020-12-22 08:54:47,466 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34199,34212] [2020-12-22 08:54:47,473 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35292,35305] [2020-12-22 08:54:47,486 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37301,37314] [2020-12-22 08:54:47,513 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[40904,40917] [2020-12-22 08:54:47,549 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[47781,47794] [2020-12-22 08:54:47,555 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48542,48555] [2020-12-22 08:54:47,563 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[49631,49644] [2020-12-22 08:54:47,574 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[51636,51649] [2020-12-22 08:54:47,593 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55025,55038] [2020-12-22 08:54:47,623 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60722,60735] [2020-12-22 08:54:48,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:54:48,175 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:54:48,275 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13127,13140] [2020-12-22 08:54:48,293 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17607,17620] [2020-12-22 08:54:48,301 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18899,18912] [2020-12-22 08:54:48,307 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19657,19670] [2020-12-22 08:54:48,320 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21277,21290] [2020-12-22 08:54:48,333 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22035,22048] [2020-12-22 08:54:48,340 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23121,23134] [2020-12-22 08:54:48,354 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25660,25673] [2020-12-22 08:54:48,359 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26421,26434] [2020-12-22 08:54:48,365 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27510,27523] [2020-12-22 08:54:48,375 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29515,29528] [2020-12-22 08:54:48,392 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33438,33451] [2020-12-22 08:54:48,397 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34199,34212] [2020-12-22 08:54:48,403 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35292,35305] [2020-12-22 08:54:48,416 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37301,37314] [2020-12-22 08:54:48,433 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[40904,40917] [2020-12-22 08:54:48,471 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[47781,47794] [2020-12-22 08:54:48,484 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48542,48555] [2020-12-22 08:54:48,491 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[49631,49644] [2020-12-22 08:54:48,501 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[51636,51649] [2020-12-22 08:54:48,516 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55025,55038] [2020-12-22 08:54:48,552 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60722,60735] [2020-12-22 08:54:48,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:54:48,962 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:54:48,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:54:48 WrapperNode [2020-12-22 08:54:48,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:54:48,965 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:54:48,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:54:48,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:54:48,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:54:48" (1/1) ... [2020-12-22 08:54:49,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:54:48" (1/1) ... [2020-12-22 08:54:49,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:54:49,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:54:49,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:54:49,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:54:49,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:54:48" (1/1) ... [2020-12-22 08:54:49,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:54:48" (1/1) ... [2020-12-22 08:54:49,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:54:48" (1/1) ... [2020-12-22 08:54:49,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:54:48" (1/1) ... [2020-12-22 08:54:49,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:54:48" (1/1) ... [2020-12-22 08:54:49,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:54:48" (1/1) ... [2020-12-22 08:54:49,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:54:48" (1/1) ... [2020-12-22 08:54:49,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:54:49,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:54:49,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:54:49,374 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:54:49,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:54:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:54:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:54:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:54:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:54:49,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:54:53,942 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:54:53,943 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:54:53,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:54:53 BoogieIcfgContainer [2020-12-22 08:54:53,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:54:53,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:54:53,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:54:53,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:54:53,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:54:46" (1/3) ... [2020-12-22 08:54:53,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e4cd18f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:54:53, skipping insertion in model container [2020-12-22 08:54:53,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:54:48" (2/3) ... [2020-12-22 08:54:53,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e4cd18f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:54:53, skipping insertion in model container [2020-12-22 08:54:53,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:54:53" (3/3) ... [2020-12-22 08:54:53,957 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:54:53,965 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:54:53,973 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. [2020-12-22 08:54:53,996 INFO L253 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2020-12-22 08:54:54,033 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:54:54,033 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:54:54,033 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:54:54,033 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:54:54,033 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:54:54,034 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:54:54,034 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:54:54,034 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:54:54,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states. [2020-12-22 08:54:54,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-22 08:54:54,099 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:54,100 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:54,101 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:54,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:54,109 INFO L82 PathProgramCache]: Analyzing trace with hash -845723877, now seen corresponding path program 1 times [2020-12-22 08:54:54,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:54,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794349924] [2020-12-22 08:54:54,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:54,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:54,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:54,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794349924] [2020-12-22 08:54:54,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:54,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:54:54,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015737251] [2020-12-22 08:54:54,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:54:54,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:54,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:54:54,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:54:54,723 INFO L87 Difference]: Start difference. First operand 1124 states. Second operand 5 states. [2020-12-22 08:54:56,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:56,205 INFO L93 Difference]: Finished difference Result 1702 states and 2998 transitions. [2020-12-22 08:54:56,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:54:56,207 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2020-12-22 08:54:56,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:56,256 INFO L225 Difference]: With dead ends: 1702 [2020-12-22 08:54:56,256 INFO L226 Difference]: Without dead ends: 961 [2020-12-22 08:54:56,270 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:54:56,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2020-12-22 08:54:56,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 961. [2020-12-22 08:54:56,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 961 states. [2020-12-22 08:54:56,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1211 transitions. [2020-12-22 08:54:56,394 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1211 transitions. Word has length 85 [2020-12-22 08:54:56,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:56,395 INFO L481 AbstractCegarLoop]: Abstraction has 961 states and 1211 transitions. [2020-12-22 08:54:56,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:54:56,395 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1211 transitions. [2020-12-22 08:54:56,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-22 08:54:56,400 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:56,401 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:56,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:54:56,402 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:56,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:56,403 INFO L82 PathProgramCache]: Analyzing trace with hash -186491762, now seen corresponding path program 1 times [2020-12-22 08:54:56,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:56,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478674947] [2020-12-22 08:54:56,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:56,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:56,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478674947] [2020-12-22 08:54:56,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:56,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:54:56,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884408362] [2020-12-22 08:54:56,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:54:56,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:56,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:54:56,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:54:56,736 INFO L87 Difference]: Start difference. First operand 961 states and 1211 transitions. Second operand 6 states. [2020-12-22 08:54:57,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:57,779 INFO L93 Difference]: Finished difference Result 1875 states and 2468 transitions. [2020-12-22 08:54:57,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:54:57,779 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 86 [2020-12-22 08:54:57,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:57,786 INFO L225 Difference]: With dead ends: 1875 [2020-12-22 08:54:57,786 INFO L226 Difference]: Without dead ends: 1133 [2020-12-22 08:54:57,789 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:54:57,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2020-12-22 08:54:57,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 1053. [2020-12-22 08:54:57,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1053 states. [2020-12-22 08:54:57,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1423 transitions. [2020-12-22 08:54:57,890 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1423 transitions. Word has length 86 [2020-12-22 08:54:57,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:57,890 INFO L481 AbstractCegarLoop]: Abstraction has 1053 states and 1423 transitions. [2020-12-22 08:54:57,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:54:57,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1423 transitions. [2020-12-22 08:54:57,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-22 08:54:57,896 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:57,896 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:57,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:54:57,897 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:57,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:57,898 INFO L82 PathProgramCache]: Analyzing trace with hash -217887072, now seen corresponding path program 1 times [2020-12-22 08:54:57,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:57,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164656850] [2020-12-22 08:54:57,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:58,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:58,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164656850] [2020-12-22 08:54:58,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:58,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:54:58,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477660112] [2020-12-22 08:54:58,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:54:58,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:58,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:54:58,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:54:58,070 INFO L87 Difference]: Start difference. First operand 1053 states and 1423 transitions. Second operand 6 states. [2020-12-22 08:54:59,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:59,033 INFO L93 Difference]: Finished difference Result 2305 states and 3172 transitions. [2020-12-22 08:54:59,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:54:59,033 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2020-12-22 08:54:59,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:59,041 INFO L225 Difference]: With dead ends: 2305 [2020-12-22 08:54:59,042 INFO L226 Difference]: Without dead ends: 1407 [2020-12-22 08:54:59,044 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:54:59,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2020-12-22 08:54:59,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1327. [2020-12-22 08:54:59,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1327 states. [2020-12-22 08:54:59,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1842 transitions. [2020-12-22 08:54:59,113 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1842 transitions. Word has length 87 [2020-12-22 08:54:59,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:59,113 INFO L481 AbstractCegarLoop]: Abstraction has 1327 states and 1842 transitions. [2020-12-22 08:54:59,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:54:59,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1842 transitions. [2020-12-22 08:54:59,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 08:54:59,117 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:59,117 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:59,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:54:59,118 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:59,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:59,119 INFO L82 PathProgramCache]: Analyzing trace with hash 630572829, now seen corresponding path program 1 times [2020-12-22 08:54:59,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:59,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112756070] [2020-12-22 08:54:59,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:59,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:59,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112756070] [2020-12-22 08:54:59,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:59,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:54:59,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994532345] [2020-12-22 08:54:59,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:54:59,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:59,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:54:59,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:54:59,277 INFO L87 Difference]: Start difference. First operand 1327 states and 1842 transitions. Second operand 6 states. [2020-12-22 08:55:00,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:00,236 INFO L93 Difference]: Finished difference Result 3195 states and 4506 transitions. [2020-12-22 08:55:00,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:55:00,237 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2020-12-22 08:55:00,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:00,249 INFO L225 Difference]: With dead ends: 3195 [2020-12-22 08:55:00,249 INFO L226 Difference]: Without dead ends: 1979 [2020-12-22 08:55:00,252 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:55:00,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2020-12-22 08:55:00,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1899. [2020-12-22 08:55:00,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1899 states. [2020-12-22 08:55:00,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1899 states to 1899 states and 2707 transitions. [2020-12-22 08:55:00,368 INFO L78 Accepts]: Start accepts. Automaton has 1899 states and 2707 transitions. Word has length 88 [2020-12-22 08:55:00,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:00,369 INFO L481 AbstractCegarLoop]: Abstraction has 1899 states and 2707 transitions. [2020-12-22 08:55:00,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:55:00,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1899 states and 2707 transitions. [2020-12-22 08:55:00,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-12-22 08:55:00,373 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:00,373 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:00,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:55:00,374 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:00,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:00,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1647430021, now seen corresponding path program 1 times [2020-12-22 08:55:00,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:00,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866000037] [2020-12-22 08:55:00,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:00,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:00,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:00,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866000037] [2020-12-22 08:55:00,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:00,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:55:00,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929639606] [2020-12-22 08:55:00,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:55:00,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:00,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:55:00,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:55:00,530 INFO L87 Difference]: Start difference. First operand 1899 states and 2707 transitions. Second operand 5 states. [2020-12-22 08:55:01,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:01,286 INFO L93 Difference]: Finished difference Result 3687 states and 5300 transitions. [2020-12-22 08:55:01,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:55:01,287 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 89 [2020-12-22 08:55:01,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:01,298 INFO L225 Difference]: With dead ends: 3687 [2020-12-22 08:55:01,299 INFO L226 Difference]: Without dead ends: 1871 [2020-12-22 08:55:01,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:55:01,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2020-12-22 08:55:01,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 1871. [2020-12-22 08:55:01,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1871 states. [2020-12-22 08:55:01,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1871 states to 1871 states and 2669 transitions. [2020-12-22 08:55:01,432 INFO L78 Accepts]: Start accepts. Automaton has 1871 states and 2669 transitions. Word has length 89 [2020-12-22 08:55:01,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:01,432 INFO L481 AbstractCegarLoop]: Abstraction has 1871 states and 2669 transitions. [2020-12-22 08:55:01,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:55:01,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1871 states and 2669 transitions. [2020-12-22 08:55:01,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 08:55:01,436 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:01,436 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:01,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:55:01,437 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:01,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:01,438 INFO L82 PathProgramCache]: Analyzing trace with hash 288863356, now seen corresponding path program 1 times [2020-12-22 08:55:01,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:01,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644113928] [2020-12-22 08:55:01,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:01,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:01,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644113928] [2020-12-22 08:55:01,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:01,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:55:01,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525896580] [2020-12-22 08:55:01,540 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:55:01,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:01,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:55:01,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:55:01,541 INFO L87 Difference]: Start difference. First operand 1871 states and 2669 transitions. Second operand 5 states. [2020-12-22 08:55:02,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:02,251 INFO L93 Difference]: Finished difference Result 3659 states and 5254 transitions. [2020-12-22 08:55:02,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:55:02,252 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 90 [2020-12-22 08:55:02,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:02,261 INFO L225 Difference]: With dead ends: 3659 [2020-12-22 08:55:02,262 INFO L226 Difference]: Without dead ends: 1854 [2020-12-22 08:55:02,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:55:02,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states. [2020-12-22 08:55:02,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 1854. [2020-12-22 08:55:02,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2020-12-22 08:55:02,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2643 transitions. [2020-12-22 08:55:02,389 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2643 transitions. Word has length 90 [2020-12-22 08:55:02,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:02,390 INFO L481 AbstractCegarLoop]: Abstraction has 1854 states and 2643 transitions. [2020-12-22 08:55:02,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:55:02,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2643 transitions. [2020-12-22 08:55:02,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-12-22 08:55:02,393 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:02,393 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:02,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:55:02,394 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:02,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:02,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1183984296, now seen corresponding path program 1 times [2020-12-22 08:55:02,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:02,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870277973] [2020-12-22 08:55:02,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:02,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:02,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870277973] [2020-12-22 08:55:02,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:02,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:55:02,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814913857] [2020-12-22 08:55:02,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 08:55:02,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:02,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 08:55:02,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:55:02,661 INFO L87 Difference]: Start difference. First operand 1854 states and 2643 transitions. Second operand 8 states. [2020-12-22 08:55:04,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:04,209 INFO L93 Difference]: Finished difference Result 3715 states and 5251 transitions. [2020-12-22 08:55:04,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 08:55:04,210 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 91 [2020-12-22 08:55:04,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:04,223 INFO L225 Difference]: With dead ends: 3715 [2020-12-22 08:55:04,223 INFO L226 Difference]: Without dead ends: 2708 [2020-12-22 08:55:04,226 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-12-22 08:55:04,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2708 states. [2020-12-22 08:55:04,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2708 to 1854. [2020-12-22 08:55:04,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2020-12-22 08:55:04,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2642 transitions. [2020-12-22 08:55:04,403 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2642 transitions. Word has length 91 [2020-12-22 08:55:04,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:04,404 INFO L481 AbstractCegarLoop]: Abstraction has 1854 states and 2642 transitions. [2020-12-22 08:55:04,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 08:55:04,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2642 transitions. [2020-12-22 08:55:04,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-12-22 08:55:04,407 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:04,407 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:04,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:55:04,408 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:04,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:04,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1428942257, now seen corresponding path program 1 times [2020-12-22 08:55:04,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:04,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997166267] [2020-12-22 08:55:04,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:04,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:04,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997166267] [2020-12-22 08:55:04,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:04,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:04,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275479590] [2020-12-22 08:55:04,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:04,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:04,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:04,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:04,622 INFO L87 Difference]: Start difference. First operand 1854 states and 2642 transitions. Second operand 9 states. [2020-12-22 08:55:07,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:07,410 INFO L93 Difference]: Finished difference Result 3875 states and 5623 transitions. [2020-12-22 08:55:07,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:55:07,411 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2020-12-22 08:55:07,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:07,427 INFO L225 Difference]: With dead ends: 3875 [2020-12-22 08:55:07,427 INFO L226 Difference]: Without dead ends: 3086 [2020-12-22 08:55:07,430 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:55:07,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3086 states. [2020-12-22 08:55:07,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3086 to 1854. [2020-12-22 08:55:07,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2020-12-22 08:55:07,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2641 transitions. [2020-12-22 08:55:07,646 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2641 transitions. Word has length 91 [2020-12-22 08:55:07,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:07,646 INFO L481 AbstractCegarLoop]: Abstraction has 1854 states and 2641 transitions. [2020-12-22 08:55:07,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:07,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2641 transitions. [2020-12-22 08:55:07,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-12-22 08:55:07,649 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:07,649 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:07,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:55:07,650 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:07,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:07,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1459275419, now seen corresponding path program 1 times [2020-12-22 08:55:07,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:07,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495071065] [2020-12-22 08:55:07,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:07,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:07,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:07,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495071065] [2020-12-22 08:55:07,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:07,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:07,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995162377] [2020-12-22 08:55:07,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:07,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:07,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:07,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:07,833 INFO L87 Difference]: Start difference. First operand 1854 states and 2641 transitions. Second operand 9 states. [2020-12-22 08:55:10,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:10,405 INFO L93 Difference]: Finished difference Result 4940 states and 7211 transitions. [2020-12-22 08:55:10,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:55:10,405 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2020-12-22 08:55:10,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:10,424 INFO L225 Difference]: With dead ends: 4940 [2020-12-22 08:55:10,425 INFO L226 Difference]: Without dead ends: 4282 [2020-12-22 08:55:10,428 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:55:10,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4282 states. [2020-12-22 08:55:10,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4282 to 1854. [2020-12-22 08:55:10,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2020-12-22 08:55:10,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2640 transitions. [2020-12-22 08:55:10,618 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2640 transitions. Word has length 91 [2020-12-22 08:55:10,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:10,618 INFO L481 AbstractCegarLoop]: Abstraction has 1854 states and 2640 transitions. [2020-12-22 08:55:10,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:10,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2640 transitions. [2020-12-22 08:55:10,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 08:55:10,622 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:10,622 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:10,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:55:10,623 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:10,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:10,623 INFO L82 PathProgramCache]: Analyzing trace with hash -2136143015, now seen corresponding path program 1 times [2020-12-22 08:55:10,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:10,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404153263] [2020-12-22 08:55:10,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:10,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:10,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404153263] [2020-12-22 08:55:10,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:10,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:55:10,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300716843] [2020-12-22 08:55:10,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:55:10,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:10,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:55:10,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:55:10,927 INFO L87 Difference]: Start difference. First operand 1854 states and 2640 transitions. Second operand 11 states. [2020-12-22 08:55:15,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:15,243 INFO L93 Difference]: Finished difference Result 4910 states and 7088 transitions. [2020-12-22 08:55:15,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-22 08:55:15,244 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 93 [2020-12-22 08:55:15,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:15,264 INFO L225 Difference]: With dead ends: 4910 [2020-12-22 08:55:15,264 INFO L226 Difference]: Without dead ends: 4087 [2020-12-22 08:55:15,267 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=219, Invalid=593, Unknown=0, NotChecked=0, Total=812 [2020-12-22 08:55:15,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4087 states. [2020-12-22 08:55:15,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4087 to 1854. [2020-12-22 08:55:15,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2020-12-22 08:55:15,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2639 transitions. [2020-12-22 08:55:15,452 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2639 transitions. Word has length 93 [2020-12-22 08:55:15,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:15,452 INFO L481 AbstractCegarLoop]: Abstraction has 1854 states and 2639 transitions. [2020-12-22 08:55:15,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:55:15,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2639 transitions. [2020-12-22 08:55:15,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 08:55:15,456 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:15,456 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:15,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:55:15,457 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:15,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:15,457 INFO L82 PathProgramCache]: Analyzing trace with hash -2068984294, now seen corresponding path program 1 times [2020-12-22 08:55:15,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:15,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703793423] [2020-12-22 08:55:15,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:15,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:15,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703793423] [2020-12-22 08:55:15,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:15,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:15,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732145046] [2020-12-22 08:55:15,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:15,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:15,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:15,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:15,634 INFO L87 Difference]: Start difference. First operand 1854 states and 2639 transitions. Second operand 9 states. [2020-12-22 08:55:18,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:18,135 INFO L93 Difference]: Finished difference Result 4802 states and 7006 transitions. [2020-12-22 08:55:18,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:55:18,135 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-12-22 08:55:18,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:18,159 INFO L225 Difference]: With dead ends: 4802 [2020-12-22 08:55:18,159 INFO L226 Difference]: Without dead ends: 4178 [2020-12-22 08:55:18,162 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:55:18,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4178 states. [2020-12-22 08:55:18,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4178 to 1854. [2020-12-22 08:55:18,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2020-12-22 08:55:18,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2637 transitions. [2020-12-22 08:55:18,424 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2637 transitions. Word has length 93 [2020-12-22 08:55:18,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:18,424 INFO L481 AbstractCegarLoop]: Abstraction has 1854 states and 2637 transitions. [2020-12-22 08:55:18,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:18,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2637 transitions. [2020-12-22 08:55:18,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 08:55:18,428 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:18,428 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:18,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:55:18,431 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:18,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:18,431 INFO L82 PathProgramCache]: Analyzing trace with hash 928092964, now seen corresponding path program 1 times [2020-12-22 08:55:18,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:18,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160720361] [2020-12-22 08:55:18,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:18,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:18,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160720361] [2020-12-22 08:55:18,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:18,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:18,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194503819] [2020-12-22 08:55:18,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:18,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:18,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:18,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:18,660 INFO L87 Difference]: Start difference. First operand 1854 states and 2637 transitions. Second operand 9 states. [2020-12-22 08:55:21,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:21,467 INFO L93 Difference]: Finished difference Result 4982 states and 7264 transitions. [2020-12-22 08:55:21,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:55:21,467 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-12-22 08:55:21,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:21,477 INFO L225 Difference]: With dead ends: 4982 [2020-12-22 08:55:21,478 INFO L226 Difference]: Without dead ends: 4282 [2020-12-22 08:55:21,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:55:21,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4282 states. [2020-12-22 08:55:21,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4282 to 1854. [2020-12-22 08:55:21,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2020-12-22 08:55:21,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2635 transitions. [2020-12-22 08:55:21,665 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2635 transitions. Word has length 93 [2020-12-22 08:55:21,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:21,665 INFO L481 AbstractCegarLoop]: Abstraction has 1854 states and 2635 transitions. [2020-12-22 08:55:21,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:21,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2635 transitions. [2020-12-22 08:55:21,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 08:55:21,669 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:21,669 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:21,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:55:21,670 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:21,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:21,670 INFO L82 PathProgramCache]: Analyzing trace with hash 538302253, now seen corresponding path program 1 times [2020-12-22 08:55:21,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:21,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186749939] [2020-12-22 08:55:21,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:21,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:21,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:21,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186749939] [2020-12-22 08:55:21,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:21,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:21,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907673766] [2020-12-22 08:55:21,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:21,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:21,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:21,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:21,855 INFO L87 Difference]: Start difference. First operand 1854 states and 2635 transitions. Second operand 9 states. [2020-12-22 08:55:24,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:24,438 INFO L93 Difference]: Finished difference Result 4780 states and 6970 transitions. [2020-12-22 08:55:24,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:55:24,439 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-12-22 08:55:24,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:24,447 INFO L225 Difference]: With dead ends: 4780 [2020-12-22 08:55:24,447 INFO L226 Difference]: Without dead ends: 4178 [2020-12-22 08:55:24,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:55:24,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4178 states. [2020-12-22 08:55:24,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4178 to 1854. [2020-12-22 08:55:24,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2020-12-22 08:55:24,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2634 transitions. [2020-12-22 08:55:24,643 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2634 transitions. Word has length 93 [2020-12-22 08:55:24,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:24,643 INFO L481 AbstractCegarLoop]: Abstraction has 1854 states and 2634 transitions. [2020-12-22 08:55:24,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:24,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2634 transitions. [2020-12-22 08:55:24,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 08:55:24,647 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:24,647 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:24,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 08:55:24,647 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:24,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:24,648 INFO L82 PathProgramCache]: Analyzing trace with hash -350742557, now seen corresponding path program 1 times [2020-12-22 08:55:24,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:24,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503773934] [2020-12-22 08:55:24,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:24,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:24,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503773934] [2020-12-22 08:55:24,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:24,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:55:24,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223966044] [2020-12-22 08:55:24,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:55:24,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:24,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:55:24,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:55:24,919 INFO L87 Difference]: Start difference. First operand 1854 states and 2634 transitions. Second operand 11 states. [2020-12-22 08:55:31,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:31,416 INFO L93 Difference]: Finished difference Result 9740 states and 14383 transitions. [2020-12-22 08:55:31,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:55:31,416 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 93 [2020-12-22 08:55:31,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:31,434 INFO L225 Difference]: With dead ends: 9740 [2020-12-22 08:55:31,435 INFO L226 Difference]: Without dead ends: 9060 [2020-12-22 08:55:31,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:55:31,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9060 states. [2020-12-22 08:55:31,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9060 to 1858. [2020-12-22 08:55:31,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1858 states. [2020-12-22 08:55:31,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 2638 transitions. [2020-12-22 08:55:31,820 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 2638 transitions. Word has length 93 [2020-12-22 08:55:31,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:31,820 INFO L481 AbstractCegarLoop]: Abstraction has 1858 states and 2638 transitions. [2020-12-22 08:55:31,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:55:31,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 2638 transitions. [2020-12-22 08:55:31,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 08:55:31,824 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:31,824 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:31,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 08:55:31,825 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:31,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:31,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1779757049, now seen corresponding path program 1 times [2020-12-22 08:55:31,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:31,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427722986] [2020-12-22 08:55:31,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:31,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:31,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427722986] [2020-12-22 08:55:31,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:31,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:31,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372209569] [2020-12-22 08:55:31,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:31,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:32,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:32,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:32,000 INFO L87 Difference]: Start difference. First operand 1858 states and 2638 transitions. Second operand 9 states. [2020-12-22 08:55:34,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:34,951 INFO L93 Difference]: Finished difference Result 4776 states and 6964 transitions. [2020-12-22 08:55:34,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:55:34,952 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-12-22 08:55:34,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:34,961 INFO L225 Difference]: With dead ends: 4776 [2020-12-22 08:55:34,961 INFO L226 Difference]: Without dead ends: 4182 [2020-12-22 08:55:34,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:55:34,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4182 states. [2020-12-22 08:55:35,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4182 to 1858. [2020-12-22 08:55:35,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1858 states. [2020-12-22 08:55:35,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 2637 transitions. [2020-12-22 08:55:35,239 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 2637 transitions. Word has length 93 [2020-12-22 08:55:35,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:35,239 INFO L481 AbstractCegarLoop]: Abstraction has 1858 states and 2637 transitions. [2020-12-22 08:55:35,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:35,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 2637 transitions. [2020-12-22 08:55:35,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 08:55:35,243 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:35,243 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:35,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 08:55:35,243 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:35,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:35,244 INFO L82 PathProgramCache]: Analyzing trace with hash 162924990, now seen corresponding path program 1 times [2020-12-22 08:55:35,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:35,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107424436] [2020-12-22 08:55:35,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:35,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:35,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107424436] [2020-12-22 08:55:35,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:35,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:55:35,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66798091] [2020-12-22 08:55:35,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:55:35,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:35,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:55:35,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:55:35,499 INFO L87 Difference]: Start difference. First operand 1858 states and 2637 transitions. Second operand 11 states. [2020-12-22 08:55:41,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:41,683 INFO L93 Difference]: Finished difference Result 8852 states and 13061 transitions. [2020-12-22 08:55:41,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:55:41,684 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 93 [2020-12-22 08:55:41,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:41,696 INFO L225 Difference]: With dead ends: 8852 [2020-12-22 08:55:41,697 INFO L226 Difference]: Without dead ends: 8254 [2020-12-22 08:55:41,700 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:55:41,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8254 states. [2020-12-22 08:55:42,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8254 to 1862. [2020-12-22 08:55:42,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1862 states. [2020-12-22 08:55:42,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2641 transitions. [2020-12-22 08:55:42,064 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2641 transitions. Word has length 93 [2020-12-22 08:55:42,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:42,064 INFO L481 AbstractCegarLoop]: Abstraction has 1862 states and 2641 transitions. [2020-12-22 08:55:42,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:55:42,064 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2641 transitions. [2020-12-22 08:55:42,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:55:42,068 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:42,069 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:42,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 08:55:42,069 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:42,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:42,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1743038652, now seen corresponding path program 1 times [2020-12-22 08:55:42,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:42,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355985462] [2020-12-22 08:55:42,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:42,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:42,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:42,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355985462] [2020-12-22 08:55:42,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:42,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:42,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644079784] [2020-12-22 08:55:42,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:42,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:42,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:42,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:42,255 INFO L87 Difference]: Start difference. First operand 1862 states and 2641 transitions. Second operand 9 states. [2020-12-22 08:55:45,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:45,464 INFO L93 Difference]: Finished difference Result 3917 states and 5652 transitions. [2020-12-22 08:55:45,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:55:45,465 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-12-22 08:55:45,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:45,469 INFO L225 Difference]: With dead ends: 3917 [2020-12-22 08:55:45,469 INFO L226 Difference]: Without dead ends: 3094 [2020-12-22 08:55:45,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:55:45,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3094 states. [2020-12-22 08:55:45,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3094 to 1862. [2020-12-22 08:55:45,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1862 states. [2020-12-22 08:55:45,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2640 transitions. [2020-12-22 08:55:45,876 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2640 transitions. Word has length 94 [2020-12-22 08:55:45,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:45,876 INFO L481 AbstractCegarLoop]: Abstraction has 1862 states and 2640 transitions. [2020-12-22 08:55:45,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:45,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2640 transitions. [2020-12-22 08:55:45,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:55:45,880 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:45,881 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:45,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 08:55:45,882 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:45,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:45,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1552610872, now seen corresponding path program 1 times [2020-12-22 08:55:45,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:45,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532945830] [2020-12-22 08:55:45,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:46,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:46,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532945830] [2020-12-22 08:55:46,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:46,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:46,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920160693] [2020-12-22 08:55:46,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:46,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:46,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:46,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:46,100 INFO L87 Difference]: Start difference. First operand 1862 states and 2640 transitions. Second operand 9 states. [2020-12-22 08:55:49,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:49,566 INFO L93 Difference]: Finished difference Result 4780 states and 6964 transitions. [2020-12-22 08:55:49,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:55:49,566 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-12-22 08:55:49,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:49,572 INFO L225 Difference]: With dead ends: 4780 [2020-12-22 08:55:49,572 INFO L226 Difference]: Without dead ends: 4182 [2020-12-22 08:55:49,574 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:55:49,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4182 states. [2020-12-22 08:55:50,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4182 to 1858. [2020-12-22 08:55:50,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1858 states. [2020-12-22 08:55:50,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 2635 transitions. [2020-12-22 08:55:50,007 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 2635 transitions. Word has length 94 [2020-12-22 08:55:50,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:50,007 INFO L481 AbstractCegarLoop]: Abstraction has 1858 states and 2635 transitions. [2020-12-22 08:55:50,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:50,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 2635 transitions. [2020-12-22 08:55:50,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:55:50,011 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:50,011 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:50,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 08:55:50,012 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:50,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:50,012 INFO L82 PathProgramCache]: Analyzing trace with hash 911066776, now seen corresponding path program 1 times [2020-12-22 08:55:50,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:50,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911997596] [2020-12-22 08:55:50,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:50,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:50,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911997596] [2020-12-22 08:55:50,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:50,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:50,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412046725] [2020-12-22 08:55:50,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:50,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:50,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:50,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:50,203 INFO L87 Difference]: Start difference. First operand 1858 states and 2635 transitions. Second operand 9 states. [2020-12-22 08:55:53,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:53,691 INFO L93 Difference]: Finished difference Result 4962 states and 7226 transitions. [2020-12-22 08:55:53,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:55:53,692 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-12-22 08:55:53,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:53,696 INFO L225 Difference]: With dead ends: 4962 [2020-12-22 08:55:53,696 INFO L226 Difference]: Without dead ends: 4282 [2020-12-22 08:55:53,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:55:53,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4282 states. [2020-12-22 08:55:53,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4282 to 1854. [2020-12-22 08:55:53,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2020-12-22 08:55:53,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2630 transitions. [2020-12-22 08:55:53,969 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2630 transitions. Word has length 94 [2020-12-22 08:55:53,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:53,970 INFO L481 AbstractCegarLoop]: Abstraction has 1854 states and 2630 transitions. [2020-12-22 08:55:53,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:53,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2630 transitions. [2020-12-22 08:55:53,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:55:53,974 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:53,974 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:53,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 08:55:53,974 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:53,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:53,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1878690134, now seen corresponding path program 1 times [2020-12-22 08:55:53,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:53,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139588155] [2020-12-22 08:55:53,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:54,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:54,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139588155] [2020-12-22 08:55:54,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:54,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:54,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752147688] [2020-12-22 08:55:54,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:54,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:54,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:54,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:54,165 INFO L87 Difference]: Start difference. First operand 1854 states and 2630 transitions. Second operand 9 states. [2020-12-22 08:55:57,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:57,226 INFO L93 Difference]: Finished difference Result 4816 states and 7014 transitions. [2020-12-22 08:55:57,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:55:57,226 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:55:57,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:57,230 INFO L225 Difference]: With dead ends: 4816 [2020-12-22 08:55:57,231 INFO L226 Difference]: Without dead ends: 4178 [2020-12-22 08:55:57,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:55:57,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4178 states. [2020-12-22 08:55:57,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4178 to 1854. [2020-12-22 08:55:57,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2020-12-22 08:55:57,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2628 transitions. [2020-12-22 08:55:57,523 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2628 transitions. Word has length 95 [2020-12-22 08:55:57,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:57,523 INFO L481 AbstractCegarLoop]: Abstraction has 1854 states and 2628 transitions. [2020-12-22 08:55:57,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:57,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2628 transitions. [2020-12-22 08:55:57,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:55:57,526 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:57,526 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:57,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 08:55:57,527 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:57,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:57,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1469844906, now seen corresponding path program 1 times [2020-12-22 08:55:57,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:57,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684589942] [2020-12-22 08:55:57,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:57,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:57,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:57,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684589942] [2020-12-22 08:55:57,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:57,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:57,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262136728] [2020-12-22 08:55:57,763 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:57,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:57,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:57,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:57,764 INFO L87 Difference]: Start difference. First operand 1854 states and 2628 transitions. Second operand 9 states. [2020-12-22 08:56:00,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:56:00,873 INFO L93 Difference]: Finished difference Result 3674 states and 5327 transitions. [2020-12-22 08:56:00,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:56:00,874 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:56:00,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:56:00,878 INFO L225 Difference]: With dead ends: 3674 [2020-12-22 08:56:00,879 INFO L226 Difference]: Without dead ends: 3086 [2020-12-22 08:56:00,881 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:56:00,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3086 states. [2020-12-22 08:56:01,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3086 to 1854. [2020-12-22 08:56:01,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2020-12-22 08:56:01,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2626 transitions. [2020-12-22 08:56:01,382 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2626 transitions. Word has length 95 [2020-12-22 08:56:01,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:56:01,383 INFO L481 AbstractCegarLoop]: Abstraction has 1854 states and 2626 transitions. [2020-12-22 08:56:01,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:56:01,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2626 transitions. [2020-12-22 08:56:01,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:56:01,387 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:56:01,387 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:56:01,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 08:56:01,387 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:56:01,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:56:01,388 INFO L82 PathProgramCache]: Analyzing trace with hash -2020844490, now seen corresponding path program 1 times [2020-12-22 08:56:01,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:56:01,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723002556] [2020-12-22 08:56:01,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:56:01,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:56:01,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:56:01,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723002556] [2020-12-22 08:56:01,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:56:01,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:56:01,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875812749] [2020-12-22 08:56:01,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:56:01,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:56:01,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:56:01,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:56:01,697 INFO L87 Difference]: Start difference. First operand 1854 states and 2626 transitions. Second operand 11 states. [2020-12-22 08:56:09,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:56:09,560 INFO L93 Difference]: Finished difference Result 10008 states and 14716 transitions. [2020-12-22 08:56:09,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:56:09,561 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 95 [2020-12-22 08:56:09,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:56:09,571 INFO L225 Difference]: With dead ends: 10008 [2020-12-22 08:56:09,571 INFO L226 Difference]: Without dead ends: 9194 [2020-12-22 08:56:09,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:56:09,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9194 states. [2020-12-22 08:56:09,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9194 to 1862. [2020-12-22 08:56:09,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1862 states. [2020-12-22 08:56:09,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2634 transitions. [2020-12-22 08:56:09,962 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2634 transitions. Word has length 95 [2020-12-22 08:56:09,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:56:09,963 INFO L481 AbstractCegarLoop]: Abstraction has 1862 states and 2634 transitions. [2020-12-22 08:56:09,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:56:09,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2634 transitions. [2020-12-22 08:56:09,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:56:09,966 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:56:09,966 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:56:09,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 08:56:09,967 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:56:09,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:56:09,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1920722797, now seen corresponding path program 1 times [2020-12-22 08:56:09,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:56:09,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886133549] [2020-12-22 08:56:09,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:56:10,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:56:10,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:56:10,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886133549] [2020-12-22 08:56:10,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:56:10,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:56:10,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628299986] [2020-12-22 08:56:10,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:56:10,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:56:10,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:56:10,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:56:10,190 INFO L87 Difference]: Start difference. First operand 1862 states and 2634 transitions. Second operand 9 states. [2020-12-22 08:56:13,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:56:13,476 INFO L93 Difference]: Finished difference Result 3676 states and 5326 transitions. [2020-12-22 08:56:13,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:56:13,477 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:56:13,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:56:13,480 INFO L225 Difference]: With dead ends: 3676 [2020-12-22 08:56:13,480 INFO L226 Difference]: Without dead ends: 3094 [2020-12-22 08:56:13,481 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:56:13,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3094 states. [2020-12-22 08:56:13,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3094 to 1862. [2020-12-22 08:56:13,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1862 states. [2020-12-22 08:56:13,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2632 transitions. [2020-12-22 08:56:13,838 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2632 transitions. Word has length 95 [2020-12-22 08:56:13,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:56:13,838 INFO L481 AbstractCegarLoop]: Abstraction has 1862 states and 2632 transitions. [2020-12-22 08:56:13,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:56:13,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2632 transitions. [2020-12-22 08:56:13,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:56:13,841 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:56:13,842 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:56:13,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-22 08:56:13,842 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:56:13,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:56:13,842 INFO L82 PathProgramCache]: Analyzing trace with hash -523524958, now seen corresponding path program 1 times [2020-12-22 08:56:13,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:56:13,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124003429] [2020-12-22 08:56:13,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:56:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:56:14,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:56:14,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124003429] [2020-12-22 08:56:14,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:56:14,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:56:14,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590620385] [2020-12-22 08:56:14,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:56:14,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:56:14,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:56:14,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:56:14,045 INFO L87 Difference]: Start difference. First operand 1862 states and 2632 transitions. Second operand 9 states. [2020-12-22 08:56:17,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:56:17,381 INFO L93 Difference]: Finished difference Result 3690 states and 5343 transitions. [2020-12-22 08:56:17,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:56:17,382 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:56:17,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:56:17,385 INFO L225 Difference]: With dead ends: 3690 [2020-12-22 08:56:17,385 INFO L226 Difference]: Without dead ends: 3094 [2020-12-22 08:56:17,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:56:17,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3094 states. [2020-12-22 08:56:17,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3094 to 1862. [2020-12-22 08:56:17,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1862 states. [2020-12-22 08:56:17,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2628 transitions. [2020-12-22 08:56:17,711 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2628 transitions. Word has length 95 [2020-12-22 08:56:17,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:56:17,711 INFO L481 AbstractCegarLoop]: Abstraction has 1862 states and 2628 transitions. [2020-12-22 08:56:17,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:56:17,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2628 transitions. [2020-12-22 08:56:17,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:56:17,715 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:56:17,715 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:56:17,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-22 08:56:17,715 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:56:17,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:56:17,716 INFO L82 PathProgramCache]: Analyzing trace with hash -891627133, now seen corresponding path program 1 times [2020-12-22 08:56:17,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:56:17,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4583006] [2020-12-22 08:56:17,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:56:17,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:56:17,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:56:17,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4583006] [2020-12-22 08:56:17,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:56:17,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:56:17,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890681400] [2020-12-22 08:56:17,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:56:17,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:56:17,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:56:17,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:56:17,929 INFO L87 Difference]: Start difference. First operand 1862 states and 2628 transitions. Second operand 9 states. [2020-12-22 08:56:21,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:56:21,214 INFO L93 Difference]: Finished difference Result 3678 states and 5321 transitions. [2020-12-22 08:56:21,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:56:21,214 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:56:21,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:56:21,218 INFO L225 Difference]: With dead ends: 3678 [2020-12-22 08:56:21,218 INFO L226 Difference]: Without dead ends: 3094 [2020-12-22 08:56:21,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:56:21,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3094 states. [2020-12-22 08:56:21,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3094 to 1862. [2020-12-22 08:56:21,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1862 states. [2020-12-22 08:56:21,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2626 transitions. [2020-12-22 08:56:21,607 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2626 transitions. Word has length 95 [2020-12-22 08:56:21,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:56:21,607 INFO L481 AbstractCegarLoop]: Abstraction has 1862 states and 2626 transitions. [2020-12-22 08:56:21,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:56:21,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2626 transitions. [2020-12-22 08:56:21,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:56:21,609 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:56:21,610 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:56:21,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-22 08:56:21,610 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:56:21,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:56:21,611 INFO L82 PathProgramCache]: Analyzing trace with hash -482781905, now seen corresponding path program 1 times [2020-12-22 08:56:21,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:56:21,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865060627] [2020-12-22 08:56:21,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:56:21,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:56:21,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:56:21,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865060627] [2020-12-22 08:56:21,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:56:21,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:56:21,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63813912] [2020-12-22 08:56:21,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:56:21,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:56:21,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:56:21,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:56:21,854 INFO L87 Difference]: Start difference. First operand 1862 states and 2626 transitions. Second operand 11 states. [2020-12-22 08:56:29,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:56:29,004 INFO L93 Difference]: Finished difference Result 8880 states and 13073 transitions. [2020-12-22 08:56:29,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:56:29,004 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 95 [2020-12-22 08:56:29,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:56:29,013 INFO L225 Difference]: With dead ends: 8880 [2020-12-22 08:56:29,013 INFO L226 Difference]: Without dead ends: 8270 [2020-12-22 08:56:29,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:56:29,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8270 states. [2020-12-22 08:56:29,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8270 to 1870. [2020-12-22 08:56:29,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1870 states. [2020-12-22 08:56:29,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2634 transitions. [2020-12-22 08:56:29,409 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2634 transitions. Word has length 95 [2020-12-22 08:56:29,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:56:29,409 INFO L481 AbstractCegarLoop]: Abstraction has 1870 states and 2634 transitions. [2020-12-22 08:56:29,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:56:29,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2634 transitions. [2020-12-22 08:56:29,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:56:29,411 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:56:29,411 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:56:29,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-22 08:56:29,412 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:56:29,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:56:29,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1112928597, now seen corresponding path program 1 times [2020-12-22 08:56:29,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:56:29,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60288623] [2020-12-22 08:56:29,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:56:29,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:56:29,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:56:29,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60288623] [2020-12-22 08:56:29,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:56:29,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:56:29,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838039729] [2020-12-22 08:56:29,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:56:29,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:56:29,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:56:29,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:56:29,622 INFO L87 Difference]: Start difference. First operand 1870 states and 2634 transitions. Second operand 9 states. [2020-12-22 08:56:32,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:56:32,996 INFO L93 Difference]: Finished difference Result 3690 states and 5333 transitions. [2020-12-22 08:56:32,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:56:32,997 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:56:32,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:56:33,001 INFO L225 Difference]: With dead ends: 3690 [2020-12-22 08:56:33,001 INFO L226 Difference]: Without dead ends: 3102 [2020-12-22 08:56:33,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:56:33,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3102 states. [2020-12-22 08:56:33,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3102 to 1870. [2020-12-22 08:56:33,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1870 states. [2020-12-22 08:56:33,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2632 transitions. [2020-12-22 08:56:33,348 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2632 transitions. Word has length 95 [2020-12-22 08:56:33,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:56:33,348 INFO L481 AbstractCegarLoop]: Abstraction has 1870 states and 2632 transitions. [2020-12-22 08:56:33,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:56:33,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2632 transitions. [2020-12-22 08:56:33,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:56:33,350 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:56:33,351 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:56:33,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-22 08:56:33,351 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:56:33,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:56:33,351 INFO L82 PathProgramCache]: Analyzing trace with hash -738270563, now seen corresponding path program 1 times [2020-12-22 08:56:33,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:56:33,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145577921] [2020-12-22 08:56:33,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:56:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:56:33,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:56:33,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145577921] [2020-12-22 08:56:33,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:56:33,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:56:33,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529460498] [2020-12-22 08:56:33,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:56:33,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:56:33,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:56:33,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:56:33,549 INFO L87 Difference]: Start difference. First operand 1870 states and 2632 transitions. Second operand 9 states. [2020-12-22 08:56:36,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:56:36,836 INFO L93 Difference]: Finished difference Result 3676 states and 5313 transitions. [2020-12-22 08:56:36,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:56:36,837 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:56:36,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:56:36,840 INFO L225 Difference]: With dead ends: 3676 [2020-12-22 08:56:36,840 INFO L226 Difference]: Without dead ends: 3102 [2020-12-22 08:56:36,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:56:36,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3102 states. [2020-12-22 08:56:37,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3102 to 1870. [2020-12-22 08:56:37,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1870 states. [2020-12-22 08:56:37,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2631 transitions. [2020-12-22 08:56:37,188 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2631 transitions. Word has length 95 [2020-12-22 08:56:37,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:56:37,189 INFO L481 AbstractCegarLoop]: Abstraction has 1870 states and 2631 transitions. [2020-12-22 08:56:37,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:56:37,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2631 transitions. [2020-12-22 08:56:37,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:56:37,191 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:56:37,191 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:56:37,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-22 08:56:37,192 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:56:37,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:56:37,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1153671650, now seen corresponding path program 1 times [2020-12-22 08:56:37,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:56:37,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616006381] [2020-12-22 08:56:37,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:56:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:56:37,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:56:37,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616006381] [2020-12-22 08:56:37,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:56:37,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:56:37,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419917549] [2020-12-22 08:56:37,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:56:37,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:56:37,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:56:37,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:56:37,455 INFO L87 Difference]: Start difference. First operand 1870 states and 2631 transitions. Second operand 11 states. [2020-12-22 08:56:44,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:56:44,630 INFO L93 Difference]: Finished difference Result 8876 states and 13064 transitions. [2020-12-22 08:56:44,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:56:44,631 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 95 [2020-12-22 08:56:44,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:56:44,640 INFO L225 Difference]: With dead ends: 8876 [2020-12-22 08:56:44,640 INFO L226 Difference]: Without dead ends: 8268 [2020-12-22 08:56:44,642 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:56:44,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8268 states. [2020-12-22 08:56:45,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8268 to 1874. [2020-12-22 08:56:45,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1874 states. [2020-12-22 08:56:45,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 2635 transitions. [2020-12-22 08:56:45,059 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 2635 transitions. Word has length 95 [2020-12-22 08:56:45,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:56:45,059 INFO L481 AbstractCegarLoop]: Abstraction has 1874 states and 2635 transitions. [2020-12-22 08:56:45,059 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:56:45,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 2635 transitions. [2020-12-22 08:56:45,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:56:45,061 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:56:45,062 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:56:45,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-22 08:56:45,062 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:56:45,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:56:45,062 INFO L82 PathProgramCache]: Analyzing trace with hash 744826422, now seen corresponding path program 1 times [2020-12-22 08:56:45,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:56:45,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235394938] [2020-12-22 08:56:45,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:56:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:56:45,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:56:45,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235394938] [2020-12-22 08:56:45,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:56:45,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:56:45,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527999641] [2020-12-22 08:56:45,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:56:45,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:56:45,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:56:45,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:56:45,257 INFO L87 Difference]: Start difference. First operand 1874 states and 2635 transitions. Second operand 9 states. [2020-12-22 08:56:48,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:56:48,880 INFO L93 Difference]: Finished difference Result 3684 states and 5320 transitions. [2020-12-22 08:56:48,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:56:48,880 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:56:48,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:56:48,883 INFO L225 Difference]: With dead ends: 3684 [2020-12-22 08:56:48,883 INFO L226 Difference]: Without dead ends: 3106 [2020-12-22 08:56:48,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:56:48,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3106 states. [2020-12-22 08:56:49,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3106 to 1874. [2020-12-22 08:56:49,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1874 states. [2020-12-22 08:56:49,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 2634 transitions. [2020-12-22 08:56:49,250 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 2634 transitions. Word has length 95 [2020-12-22 08:56:49,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:56:49,250 INFO L481 AbstractCegarLoop]: Abstraction has 1874 states and 2634 transitions. [2020-12-22 08:56:49,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:56:49,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 2634 transitions. [2020-12-22 08:56:49,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:56:49,252 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:56:49,252 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:56:49,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-22 08:56:49,252 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:56:49,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:56:49,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1037319048, now seen corresponding path program 1 times [2020-12-22 08:56:49,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:56:49,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683352779] [2020-12-22 08:56:49,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:56:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:56:49,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:56:49,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683352779] [2020-12-22 08:56:49,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:56:49,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:56:49,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156673787] [2020-12-22 08:56:49,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:56:49,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:56:49,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:56:49,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:56:49,444 INFO L87 Difference]: Start difference. First operand 1874 states and 2634 transitions. Second operand 9 states. [2020-12-22 08:56:53,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:56:53,023 INFO L93 Difference]: Finished difference Result 3688 states and 5326 transitions. [2020-12-22 08:56:53,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:56:53,024 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:56:53,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:56:53,027 INFO L225 Difference]: With dead ends: 3688 [2020-12-22 08:56:53,027 INFO L226 Difference]: Without dead ends: 3106 [2020-12-22 08:56:53,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:56:53,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3106 states. [2020-12-22 08:56:53,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3106 to 1874. [2020-12-22 08:56:53,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1874 states. [2020-12-22 08:56:53,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 2632 transitions. [2020-12-22 08:56:53,429 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 2632 transitions. Word has length 95 [2020-12-22 08:56:53,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:56:53,429 INFO L481 AbstractCegarLoop]: Abstraction has 1874 states and 2632 transitions. [2020-12-22 08:56:53,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:56:53,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 2632 transitions. [2020-12-22 08:56:53,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:56:53,431 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:56:53,432 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:56:53,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-22 08:56:53,432 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:56:53,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:56:53,432 INFO L82 PathProgramCache]: Analyzing trace with hash -359034935, now seen corresponding path program 1 times [2020-12-22 08:56:53,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:56:53,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652932957] [2020-12-22 08:56:53,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:56:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:56:53,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:56:53,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652932957] [2020-12-22 08:56:53,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:56:53,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:56:53,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476672830] [2020-12-22 08:56:53,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:56:53,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:56:53,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:56:53,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:56:53,629 INFO L87 Difference]: Start difference. First operand 1874 states and 2632 transitions. Second operand 9 states. [2020-12-22 08:56:57,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:56:57,134 INFO L93 Difference]: Finished difference Result 3678 states and 5311 transitions. [2020-12-22 08:56:57,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:56:57,139 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:56:57,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:56:57,143 INFO L225 Difference]: With dead ends: 3678 [2020-12-22 08:56:57,143 INFO L226 Difference]: Without dead ends: 3106 [2020-12-22 08:56:57,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:56:57,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3106 states. [2020-12-22 08:56:57,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3106 to 1874. [2020-12-22 08:56:57,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1874 states. [2020-12-22 08:56:57,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 2631 transitions. [2020-12-22 08:56:57,545 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 2631 transitions. Word has length 95 [2020-12-22 08:56:57,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:56:57,545 INFO L481 AbstractCegarLoop]: Abstraction has 1874 states and 2631 transitions. [2020-12-22 08:56:57,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:56:57,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 2631 transitions. [2020-12-22 08:56:57,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:56:57,547 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:56:57,548 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:56:57,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-22 08:56:57,548 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:56:57,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:56:57,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1152638694, now seen corresponding path program 1 times [2020-12-22 08:56:57,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:56:57,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367761617] [2020-12-22 08:56:57,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:56:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:56:57,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:56:57,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367761617] [2020-12-22 08:56:57,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:56:57,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:56:57,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985229747] [2020-12-22 08:56:57,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:56:57,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:56:57,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:56:57,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:56:57,739 INFO L87 Difference]: Start difference. First operand 1874 states and 2631 transitions. Second operand 9 states. [2020-12-22 08:57:01,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:01,362 INFO L93 Difference]: Finished difference Result 3690 states and 5324 transitions. [2020-12-22 08:57:01,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:57:01,363 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:57:01,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:01,366 INFO L225 Difference]: With dead ends: 3690 [2020-12-22 08:57:01,366 INFO L226 Difference]: Without dead ends: 3106 [2020-12-22 08:57:01,367 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:57:01,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3106 states. [2020-12-22 08:57:01,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3106 to 1874. [2020-12-22 08:57:01,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1874 states. [2020-12-22 08:57:01,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 2629 transitions. [2020-12-22 08:57:01,741 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 2629 transitions. Word has length 95 [2020-12-22 08:57:01,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:01,741 INFO L481 AbstractCegarLoop]: Abstraction has 1874 states and 2629 transitions. [2020-12-22 08:57:01,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:57:01,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 2629 transitions. [2020-12-22 08:57:01,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:57:01,744 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:01,744 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:01,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-22 08:57:01,744 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:01,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:01,745 INFO L82 PathProgramCache]: Analyzing trace with hash -698776940, now seen corresponding path program 1 times [2020-12-22 08:57:01,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:01,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562119529] [2020-12-22 08:57:01,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:01,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:57:01,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562119529] [2020-12-22 08:57:01,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:01,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:57:01,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469064939] [2020-12-22 08:57:01,940 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:57:01,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:01,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:57:01,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:57:01,941 INFO L87 Difference]: Start difference. First operand 1874 states and 2629 transitions. Second operand 9 states. [2020-12-22 08:57:05,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:05,518 INFO L93 Difference]: Finished difference Result 3680 states and 5310 transitions. [2020-12-22 08:57:05,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:57:05,519 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:57:05,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:05,522 INFO L225 Difference]: With dead ends: 3680 [2020-12-22 08:57:05,522 INFO L226 Difference]: Without dead ends: 3106 [2020-12-22 08:57:05,524 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:57:05,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3106 states. [2020-12-22 08:57:05,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3106 to 1874. [2020-12-22 08:57:05,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1874 states. [2020-12-22 08:57:05,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 2628 transitions. [2020-12-22 08:57:05,905 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 2628 transitions. Word has length 95 [2020-12-22 08:57:05,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:05,906 INFO L481 AbstractCegarLoop]: Abstraction has 1874 states and 2628 transitions. [2020-12-22 08:57:05,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:57:05,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 2628 transitions. [2020-12-22 08:57:05,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:57:05,908 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:05,908 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:05,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-22 08:57:05,908 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:05,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:05,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1514074373, now seen corresponding path program 1 times [2020-12-22 08:57:05,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:05,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560716013] [2020-12-22 08:57:05,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:06,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:57:06,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560716013] [2020-12-22 08:57:06,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:06,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:57:06,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817048720] [2020-12-22 08:57:06,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:57:06,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:06,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:57:06,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:57:06,088 INFO L87 Difference]: Start difference. First operand 1874 states and 2628 transitions. Second operand 9 states. [2020-12-22 08:57:09,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:09,813 INFO L93 Difference]: Finished difference Result 4796 states and 6948 transitions. [2020-12-22 08:57:09,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:57:09,814 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-12-22 08:57:09,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:09,818 INFO L225 Difference]: With dead ends: 4796 [2020-12-22 08:57:09,818 INFO L226 Difference]: Without dead ends: 4186 [2020-12-22 08:57:09,819 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:57:09,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4186 states. [2020-12-22 08:57:10,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4186 to 1866. [2020-12-22 08:57:10,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1866 states. [2020-12-22 08:57:10,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1866 states to 1866 states and 2618 transitions. [2020-12-22 08:57:10,211 INFO L78 Accepts]: Start accepts. Automaton has 1866 states and 2618 transitions. Word has length 96 [2020-12-22 08:57:10,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:10,211 INFO L481 AbstractCegarLoop]: Abstraction has 1866 states and 2618 transitions. [2020-12-22 08:57:10,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:57:10,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1866 states and 2618 transitions. [2020-12-22 08:57:10,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:57:10,213 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:10,213 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:10,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-22 08:57:10,214 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:10,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:10,214 INFO L82 PathProgramCache]: Analyzing trace with hash 937498281, now seen corresponding path program 1 times [2020-12-22 08:57:10,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:10,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001215387] [2020-12-22 08:57:10,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:10,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:10,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:57:10,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001215387] [2020-12-22 08:57:10,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:10,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:57:10,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062191922] [2020-12-22 08:57:10,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:57:10,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:10,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:57:10,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:57:10,387 INFO L87 Difference]: Start difference. First operand 1866 states and 2618 transitions. Second operand 9 states. [2020-12-22 08:57:14,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:14,483 INFO L93 Difference]: Finished difference Result 5104 states and 7372 transitions. [2020-12-22 08:57:14,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:57:14,484 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-12-22 08:57:14,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:14,488 INFO L225 Difference]: With dead ends: 5104 [2020-12-22 08:57:14,488 INFO L226 Difference]: Without dead ends: 4290 [2020-12-22 08:57:14,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:57:14,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4290 states. [2020-12-22 08:57:14,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4290 to 1858. [2020-12-22 08:57:14,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1858 states. [2020-12-22 08:57:14,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 2608 transitions. [2020-12-22 08:57:14,872 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 2608 transitions. Word has length 96 [2020-12-22 08:57:14,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:14,872 INFO L481 AbstractCegarLoop]: Abstraction has 1858 states and 2608 transitions. [2020-12-22 08:57:14,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:57:14,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 2608 transitions. [2020-12-22 08:57:14,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:57:14,874 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:14,874 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:14,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-12-22 08:57:14,875 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:14,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:14,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1971346059, now seen corresponding path program 1 times [2020-12-22 08:57:14,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:14,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425595951] [2020-12-22 08:57:14,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:15,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:57:15,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425595951] [2020-12-22 08:57:15,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:15,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:57:15,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047298369] [2020-12-22 08:57:15,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:57:15,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:15,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:57:15,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:57:15,052 INFO L87 Difference]: Start difference. First operand 1858 states and 2608 transitions. Second operand 9 states. [2020-12-22 08:57:19,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:19,438 INFO L93 Difference]: Finished difference Result 4786 states and 6934 transitions. [2020-12-22 08:57:19,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:57:19,439 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-12-22 08:57:19,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:19,443 INFO L225 Difference]: With dead ends: 4786 [2020-12-22 08:57:19,443 INFO L226 Difference]: Without dead ends: 4178 [2020-12-22 08:57:19,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:57:19,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4178 states. [2020-12-22 08:57:19,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4178 to 1854. [2020-12-22 08:57:19,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2020-12-22 08:57:19,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2603 transitions. [2020-12-22 08:57:19,864 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2603 transitions. Word has length 96 [2020-12-22 08:57:19,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:19,865 INFO L481 AbstractCegarLoop]: Abstraction has 1854 states and 2603 transitions. [2020-12-22 08:57:19,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:57:19,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2603 transitions. [2020-12-22 08:57:19,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:57:19,868 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:19,868 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:19,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-12-22 08:57:19,868 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:19,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:19,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1541256586, now seen corresponding path program 1 times [2020-12-22 08:57:19,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:19,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36107061] [2020-12-22 08:57:19,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:20,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:57:20,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36107061] [2020-12-22 08:57:20,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:20,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:57:20,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389847581] [2020-12-22 08:57:20,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:57:20,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:20,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:57:20,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:57:20,054 INFO L87 Difference]: Start difference. First operand 1854 states and 2603 transitions. Second operand 9 states. [2020-12-22 08:57:24,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:24,222 INFO L93 Difference]: Finished difference Result 4780 states and 6991 transitions. [2020-12-22 08:57:24,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:57:24,223 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:57:24,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:24,227 INFO L225 Difference]: With dead ends: 4780 [2020-12-22 08:57:24,227 INFO L226 Difference]: Without dead ends: 4210 [2020-12-22 08:57:24,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:57:24,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4210 states. [2020-12-22 08:57:24,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4210 to 1854. [2020-12-22 08:57:24,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2020-12-22 08:57:24,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2601 transitions. [2020-12-22 08:57:24,649 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2601 transitions. Word has length 97 [2020-12-22 08:57:24,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:24,650 INFO L481 AbstractCegarLoop]: Abstraction has 1854 states and 2601 transitions. [2020-12-22 08:57:24,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:57:24,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2601 transitions. [2020-12-22 08:57:24,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:57:24,652 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:24,652 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:24,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-12-22 08:57:24,652 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:24,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:24,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1487727486, now seen corresponding path program 1 times [2020-12-22 08:57:24,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:24,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165693626] [2020-12-22 08:57:24,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:24,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:57:24,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165693626] [2020-12-22 08:57:24,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:24,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:57:24,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267829757] [2020-12-22 08:57:24,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:57:24,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:24,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:57:24,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:57:24,994 INFO L87 Difference]: Start difference. First operand 1854 states and 2601 transitions. Second operand 12 states. [2020-12-22 08:57:32,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:32,383 INFO L93 Difference]: Finished difference Result 5076 states and 7349 transitions. [2020-12-22 08:57:32,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:57:32,384 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2020-12-22 08:57:32,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:32,388 INFO L225 Difference]: With dead ends: 5076 [2020-12-22 08:57:32,388 INFO L226 Difference]: Without dead ends: 4502 [2020-12-22 08:57:32,391 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:57:32,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4502 states. [2020-12-22 08:57:32,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4502 to 1854. [2020-12-22 08:57:32,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2020-12-22 08:57:32,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2599 transitions. [2020-12-22 08:57:32,840 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2599 transitions. Word has length 97 [2020-12-22 08:57:32,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:32,841 INFO L481 AbstractCegarLoop]: Abstraction has 1854 states and 2599 transitions. [2020-12-22 08:57:32,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:57:32,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2599 transitions. [2020-12-22 08:57:32,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:57:32,843 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:32,843 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:32,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-12-22 08:57:32,843 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:32,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:32,843 INFO L82 PathProgramCache]: Analyzing trace with hash -2052103235, now seen corresponding path program 1 times [2020-12-22 08:57:32,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:32,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659641654] [2020-12-22 08:57:32,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:33,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:57:33,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659641654] [2020-12-22 08:57:33,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:33,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:57:33,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557406712] [2020-12-22 08:57:33,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:57:33,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:33,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:57:33,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:57:33,028 INFO L87 Difference]: Start difference. First operand 1854 states and 2599 transitions. Second operand 9 states. [2020-12-22 08:57:37,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:37,688 INFO L93 Difference]: Finished difference Result 4790 states and 7000 transitions. [2020-12-22 08:57:37,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:57:37,689 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:57:37,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:37,694 INFO L225 Difference]: With dead ends: 4790 [2020-12-22 08:57:37,694 INFO L226 Difference]: Without dead ends: 4210 [2020-12-22 08:57:37,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:57:37,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4210 states. [2020-12-22 08:57:38,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4210 to 1854. [2020-12-22 08:57:38,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2020-12-22 08:57:38,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2595 transitions. [2020-12-22 08:57:38,191 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2595 transitions. Word has length 97 [2020-12-22 08:57:38,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:38,192 INFO L481 AbstractCegarLoop]: Abstraction has 1854 states and 2595 transitions. [2020-12-22 08:57:38,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:57:38,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2595 transitions. [2020-12-22 08:57:38,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:57:38,194 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:38,194 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:38,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-12-22 08:57:38,194 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:38,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:38,195 INFO L82 PathProgramCache]: Analyzing trace with hash -139906133, now seen corresponding path program 1 times [2020-12-22 08:57:38,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:38,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075279881] [2020-12-22 08:57:38,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:38,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:57:38,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075279881] [2020-12-22 08:57:38,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:38,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:57:38,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85322196] [2020-12-22 08:57:38,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:57:38,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:38,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:57:38,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:57:38,413 INFO L87 Difference]: Start difference. First operand 1854 states and 2595 transitions. Second operand 9 states. [2020-12-22 08:57:42,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:42,528 INFO L93 Difference]: Finished difference Result 3690 states and 5317 transitions. [2020-12-22 08:57:42,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:57:42,529 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:57:42,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:42,532 INFO L225 Difference]: With dead ends: 3690 [2020-12-22 08:57:42,532 INFO L226 Difference]: Without dead ends: 3086 [2020-12-22 08:57:42,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:57:42,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3086 states. [2020-12-22 08:57:42,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3086 to 1854. [2020-12-22 08:57:42,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2020-12-22 08:57:42,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2591 transitions. [2020-12-22 08:57:42,982 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2591 transitions. Word has length 97 [2020-12-22 08:57:42,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:42,982 INFO L481 AbstractCegarLoop]: Abstraction has 1854 states and 2591 transitions. [2020-12-22 08:57:42,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:57:42,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2591 transitions. [2020-12-22 08:57:42,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:57:42,984 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:42,984 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:42,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-12-22 08:57:42,984 INFO L429 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:42,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:42,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1430230902, now seen corresponding path program 1 times [2020-12-22 08:57:42,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:42,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723557373] [2020-12-22 08:57:42,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:43,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:57:43,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723557373] [2020-12-22 08:57:43,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:43,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:57:43,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438715454] [2020-12-22 08:57:43,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:57:43,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:43,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:57:43,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:57:43,180 INFO L87 Difference]: Start difference. First operand 1854 states and 2591 transitions. Second operand 9 states. [2020-12-22 08:57:47,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:47,586 INFO L93 Difference]: Finished difference Result 4784 states and 6984 transitions. [2020-12-22 08:57:47,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:57:47,587 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:57:47,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:47,591 INFO L225 Difference]: With dead ends: 4784 [2020-12-22 08:57:47,591 INFO L226 Difference]: Without dead ends: 4210 [2020-12-22 08:57:47,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:57:47,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4210 states. [2020-12-22 08:57:48,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4210 to 1854. [2020-12-22 08:57:48,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2020-12-22 08:57:48,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2589 transitions. [2020-12-22 08:57:48,074 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2589 transitions. Word has length 97 [2020-12-22 08:57:48,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:48,074 INFO L481 AbstractCegarLoop]: Abstraction has 1854 states and 2589 transitions. [2020-12-22 08:57:48,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:57:48,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2589 transitions. [2020-12-22 08:57:48,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:57:48,077 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:48,077 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:48,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-12-22 08:57:48,078 INFO L429 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:48,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:48,078 INFO L82 PathProgramCache]: Analyzing trace with hash -952539292, now seen corresponding path program 1 times [2020-12-22 08:57:48,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:48,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202774053] [2020-12-22 08:57:48,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:48,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:57:48,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202774053] [2020-12-22 08:57:48,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:48,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:57:48,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054609460] [2020-12-22 08:57:48,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:57:48,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:48,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:57:48,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:57:48,266 INFO L87 Difference]: Start difference. First operand 1854 states and 2589 transitions. Second operand 9 states. [2020-12-22 08:57:52,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:52,298 INFO L93 Difference]: Finished difference Result 3676 states and 5289 transitions. [2020-12-22 08:57:52,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:57:52,299 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:57:52,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:52,302 INFO L225 Difference]: With dead ends: 3676 [2020-12-22 08:57:52,302 INFO L226 Difference]: Without dead ends: 3086 [2020-12-22 08:57:52,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:57:52,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3086 states. [2020-12-22 08:57:52,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3086 to 1854. [2020-12-22 08:57:52,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2020-12-22 08:57:52,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2587 transitions. [2020-12-22 08:57:52,781 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2587 transitions. Word has length 97 [2020-12-22 08:57:52,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:52,781 INFO L481 AbstractCegarLoop]: Abstraction has 1854 states and 2587 transitions. [2020-12-22 08:57:52,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:57:52,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2587 transitions. [2020-12-22 08:57:52,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:57:52,785 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:52,785 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:52,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-12-22 08:57:52,785 INFO L429 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:52,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:52,786 INFO L82 PathProgramCache]: Analyzing trace with hash -557790964, now seen corresponding path program 1 times [2020-12-22 08:57:52,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:52,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135823182] [2020-12-22 08:57:52,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:52,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:53,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:57:53,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135823182] [2020-12-22 08:57:53,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:53,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:57:53,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543934678] [2020-12-22 08:57:53,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:57:53,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:53,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:57:53,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:57:53,163 INFO L87 Difference]: Start difference. First operand 1854 states and 2587 transitions. Second operand 11 states. [2020-12-22 08:57:53,821 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2020-12-22 08:58:03,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:03,236 INFO L93 Difference]: Finished difference Result 8964 states and 13137 transitions. [2020-12-22 08:58:03,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:58:03,237 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 97 [2020-12-22 08:58:03,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:03,247 INFO L225 Difference]: With dead ends: 8964 [2020-12-22 08:58:03,247 INFO L226 Difference]: Without dead ends: 8308 [2020-12-22 08:58:03,250 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:58:03,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8308 states. [2020-12-22 08:58:03,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8308 to 1862. [2020-12-22 08:58:03,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1862 states. [2020-12-22 08:58:03,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2595 transitions. [2020-12-22 08:58:03,809 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2595 transitions. Word has length 97 [2020-12-22 08:58:03,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:03,809 INFO L481 AbstractCegarLoop]: Abstraction has 1862 states and 2595 transitions. [2020-12-22 08:58:03,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:58:03,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2595 transitions. [2020-12-22 08:58:03,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:58:03,811 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:03,811 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:58:03,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-12-22 08:58:03,811 INFO L429 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:03,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:03,812 INFO L82 PathProgramCache]: Analyzing trace with hash 934856710, now seen corresponding path program 1 times [2020-12-22 08:58:03,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:03,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372386043] [2020-12-22 08:58:03,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:03,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:04,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:58:04,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372386043] [2020-12-22 08:58:04,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:04,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:58:04,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252519102] [2020-12-22 08:58:04,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:58:04,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:04,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:58:04,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:58:04,012 INFO L87 Difference]: Start difference. First operand 1862 states and 2595 transitions. Second operand 9 states. [2020-12-22 08:58:08,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:08,823 INFO L93 Difference]: Finished difference Result 4784 states and 6979 transitions. [2020-12-22 08:58:08,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:58:08,823 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:58:08,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:08,828 INFO L225 Difference]: With dead ends: 4784 [2020-12-22 08:58:08,828 INFO L226 Difference]: Without dead ends: 4218 [2020-12-22 08:58:08,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:58:08,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4218 states. [2020-12-22 08:58:09,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4218 to 1862. [2020-12-22 08:58:09,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1862 states. [2020-12-22 08:58:09,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2593 transitions. [2020-12-22 08:58:09,338 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2593 transitions. Word has length 97 [2020-12-22 08:58:09,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:09,338 INFO L481 AbstractCegarLoop]: Abstraction has 1862 states and 2593 transitions. [2020-12-22 08:58:09,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:58:09,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2593 transitions. [2020-12-22 08:58:09,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:58:09,340 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:09,340 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:58:09,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-12-22 08:58:09,340 INFO L429 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:09,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:09,340 INFO L82 PathProgramCache]: Analyzing trace with hash -965955861, now seen corresponding path program 1 times [2020-12-22 08:58:09,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:09,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802557953] [2020-12-22 08:58:09,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:09,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:58:09,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802557953] [2020-12-22 08:58:09,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:09,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:58:09,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093459547] [2020-12-22 08:58:09,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:58:09,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:09,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:58:09,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:58:09,641 INFO L87 Difference]: Start difference. First operand 1862 states and 2593 transitions. Second operand 12 states. [2020-12-22 08:58:10,442 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2020-12-22 08:58:17,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:17,776 INFO L93 Difference]: Finished difference Result 5076 states and 7331 transitions. [2020-12-22 08:58:17,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:58:17,777 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2020-12-22 08:58:17,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:17,781 INFO L225 Difference]: With dead ends: 5076 [2020-12-22 08:58:17,782 INFO L226 Difference]: Without dead ends: 4506 [2020-12-22 08:58:17,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:58:17,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4506 states. [2020-12-22 08:58:18,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4506 to 1862. [2020-12-22 08:58:18,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1862 states. [2020-12-22 08:58:18,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2591 transitions. [2020-12-22 08:58:18,344 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2591 transitions. Word has length 97 [2020-12-22 08:58:18,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:18,345 INFO L481 AbstractCegarLoop]: Abstraction has 1862 states and 2591 transitions. [2020-12-22 08:58:18,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:58:18,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2591 transitions. [2020-12-22 08:58:18,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:58:18,347 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:18,347 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:58:18,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-12-22 08:58:18,347 INFO L429 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:18,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:18,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1614649937, now seen corresponding path program 1 times [2020-12-22 08:58:18,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:18,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485499068] [2020-12-22 08:58:18,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:18,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:58:18,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485499068] [2020-12-22 08:58:18,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:18,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:58:18,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843916514] [2020-12-22 08:58:18,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:58:18,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:18,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:58:18,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:58:18,576 INFO L87 Difference]: Start difference. First operand 1862 states and 2591 transitions. Second operand 9 states. [2020-12-22 08:58:23,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:23,665 INFO L93 Difference]: Finished difference Result 4792 states and 6983 transitions. [2020-12-22 08:58:23,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:58:23,666 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:58:23,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:23,670 INFO L225 Difference]: With dead ends: 4792 [2020-12-22 08:58:23,670 INFO L226 Difference]: Without dead ends: 4218 [2020-12-22 08:58:23,672 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:58:23,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4218 states. [2020-12-22 08:58:24,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4218 to 1862. [2020-12-22 08:58:24,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1862 states. [2020-12-22 08:58:24,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2587 transitions. [2020-12-22 08:58:24,201 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2587 transitions. Word has length 97 [2020-12-22 08:58:24,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:24,201 INFO L481 AbstractCegarLoop]: Abstraction has 1862 states and 2587 transitions. [2020-12-22 08:58:24,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:58:24,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2587 transitions. [2020-12-22 08:58:24,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:58:24,209 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:24,209 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:58:24,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-12-22 08:58:24,209 INFO L429 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:24,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:24,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1414714454, now seen corresponding path program 1 times [2020-12-22 08:58:24,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:24,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470224461] [2020-12-22 08:58:24,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:24,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:58:24,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470224461] [2020-12-22 08:58:24,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:24,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:58:24,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095674704] [2020-12-22 08:58:24,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:58:24,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:24,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:58:24,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:58:24,539 INFO L87 Difference]: Start difference. First operand 1862 states and 2587 transitions. Second operand 12 states. [2020-12-22 08:58:25,439 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2020-12-22 08:58:33,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:33,284 INFO L93 Difference]: Finished difference Result 4512 states and 6464 transitions. [2020-12-22 08:58:33,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:58:33,285 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2020-12-22 08:58:33,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:33,290 INFO L225 Difference]: With dead ends: 4512 [2020-12-22 08:58:33,290 INFO L226 Difference]: Without dead ends: 4507 [2020-12-22 08:58:33,291 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:58:33,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4507 states. [2020-12-22 08:58:33,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4507 to 1862. [2020-12-22 08:58:33,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1862 states. [2020-12-22 08:58:33,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2583 transitions. [2020-12-22 08:58:33,850 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2583 transitions. Word has length 97 [2020-12-22 08:58:33,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:33,850 INFO L481 AbstractCegarLoop]: Abstraction has 1862 states and 2583 transitions. [2020-12-22 08:58:33,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:58:33,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2583 transitions. [2020-12-22 08:58:33,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:58:33,852 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:33,852 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:58:33,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-12-22 08:58:33,853 INFO L429 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:33,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:33,853 INFO L82 PathProgramCache]: Analyzing trace with hash 610975350, now seen corresponding path program 1 times [2020-12-22 08:58:33,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:33,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129667436] [2020-12-22 08:58:33,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:33,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:34,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:58:34,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129667436] [2020-12-22 08:58:34,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:34,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:58:34,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847848105] [2020-12-22 08:58:34,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:58:34,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:34,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:58:34,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:58:34,040 INFO L87 Difference]: Start difference. First operand 1862 states and 2583 transitions. Second operand 9 states.