java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem06_label43_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 15:27:25,483 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 15:27:25,485 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 15:27:25,497 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 15:27:25,498 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 15:27:25,499 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 15:27:25,500 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 15:27:25,502 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 15:27:25,504 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 15:27:25,505 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 15:27:25,508 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 15:27:25,508 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 15:27:25,509 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 15:27:25,511 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 15:27:25,513 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 15:27:25,514 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 15:27:25,516 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 15:27:25,520 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 15:27:25,524 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 15:27:25,529 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 15:27:25,530 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 15:27:25,534 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 15:27:25,537 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 15:27:25,537 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 15:27:25,539 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 15:27:25,541 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 15:27:25,542 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 15:27:25,544 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 15:27:25,545 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 15:27:25,546 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 15:27:25,548 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 15:27:25,549 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 15:27:25,549 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 15:27:25,549 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 15:27:25,550 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 15:27:25,551 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 15:27:25,553 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 15:27:25,585 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 15:27:25,586 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 15:27:25,587 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 15:27:25,590 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 15:27:25,591 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 15:27:25,591 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 15:27:25,591 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 15:27:25,591 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 15:27:25,593 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 15:27:25,593 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 15:27:25,594 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 15:27:25,594 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 15:27:25,594 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 15:27:25,594 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 15:27:25,594 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 15:27:25,595 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 15:27:25,595 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 15:27:25,595 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 15:27:25,595 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 15:27:25,595 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 15:27:25,596 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 15:27:25,596 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 15:27:25,596 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 15:27:25,596 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 15:27:25,596 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 15:27:25,597 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 15:27:25,597 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 15:27:25,597 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 15:27:25,642 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 15:27:25,658 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 15:27:25,664 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 15:27:25,667 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 15:27:25,667 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 15:27:25,668 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem06_label43_true-unreach-call.c [2018-10-24 15:27:25,730 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0b4156891/0c8ca87674834f728e77db34b68c8a1d/FLAGa3276795c [2018-10-24 15:27:26,634 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 15:27:26,635 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem06_label43_true-unreach-call.c [2018-10-24 15:27:26,695 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0b4156891/0c8ca87674834f728e77db34b68c8a1d/FLAGa3276795c [2018-10-24 15:27:26,711 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0b4156891/0c8ca87674834f728e77db34b68c8a1d [2018-10-24 15:27:26,720 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 15:27:26,722 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 15:27:26,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 15:27:26,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 15:27:26,727 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 15:27:26,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:27:26" (1/1) ... [2018-10-24 15:27:26,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71739530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:26, skipping insertion in model container [2018-10-24 15:27:26,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:27:26" (1/1) ... [2018-10-24 15:27:26,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 15:27:26,981 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 15:27:29,001 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 15:27:29,006 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 15:27:30,153 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 15:27:30,225 INFO L193 MainTranslator]: Completed translation [2018-10-24 15:27:30,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:30 WrapperNode [2018-10-24 15:27:30,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 15:27:30,228 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 15:27:30,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 15:27:30,229 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 15:27:30,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:30" (1/1) ... [2018-10-24 15:27:30,324 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:30" (1/1) ... [2018-10-24 15:27:31,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 15:27:31,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 15:27:31,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 15:27:31,064 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 15:27:31,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:30" (1/1) ... [2018-10-24 15:27:31,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:30" (1/1) ... [2018-10-24 15:27:31,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:30" (1/1) ... [2018-10-24 15:27:31,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:30" (1/1) ... [2018-10-24 15:27:31,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:30" (1/1) ... [2018-10-24 15:27:31,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:30" (1/1) ... [2018-10-24 15:27:31,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:30" (1/1) ... [2018-10-24 15:27:31,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 15:27:31,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 15:27:31,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 15:27:31,441 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 15:27:31,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 15:27:31,515 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 15:27:31,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 15:27:31,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 15:27:42,667 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 15:27:42,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:27:42 BoogieIcfgContainer [2018-10-24 15:27:42,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 15:27:42,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 15:27:42,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 15:27:42,673 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 15:27:42,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:27:26" (1/3) ... [2018-10-24 15:27:42,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f562b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:27:42, skipping insertion in model container [2018-10-24 15:27:42,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:30" (2/3) ... [2018-10-24 15:27:42,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f562b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:27:42, skipping insertion in model container [2018-10-24 15:27:42,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:27:42" (3/3) ... [2018-10-24 15:27:42,677 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem06_label43_true-unreach-call.c [2018-10-24 15:27:42,687 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 15:27:42,698 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 15:27:42,715 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 15:27:42,765 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 15:27:42,766 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 15:27:42,766 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 15:27:42,766 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 15:27:42,766 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 15:27:42,766 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 15:27:42,766 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 15:27:42,767 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 15:27:42,767 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 15:27:42,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1291 states. [2018-10-24 15:27:42,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 980 [2018-10-24 15:27:42,881 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:27:42,884 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:27:42,886 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:27:42,893 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:27:42,894 INFO L82 PathProgramCache]: Analyzing trace with hash -515891681, now seen corresponding path program 1 times [2018-10-24 15:27:42,896 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:27:42,897 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:27:42,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:27:42,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:27:42,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:27:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:27:46,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 15:27:46,588 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:27:46,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 15:27:46,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 15:27:46,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 15:27:46,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 15:27:46,614 INFO L87 Difference]: Start difference. First operand 1291 states. Second operand 4 states. [2018-10-24 15:28:02,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:28:02,599 INFO L93 Difference]: Finished difference Result 4739 states and 8984 transitions. [2018-10-24 15:28:02,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 15:28:02,602 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 979 [2018-10-24 15:28:02,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:28:02,655 INFO L225 Difference]: With dead ends: 4739 [2018-10-24 15:28:02,655 INFO L226 Difference]: Without dead ends: 3441 [2018-10-24 15:28:02,666 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 15:28:02,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3441 states. [2018-10-24 15:28:02,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3441 to 3406. [2018-10-24 15:28:02,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3406 states. [2018-10-24 15:28:02,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 5735 transitions. [2018-10-24 15:28:02,866 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 5735 transitions. Word has length 979 [2018-10-24 15:28:02,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:28:02,872 INFO L481 AbstractCegarLoop]: Abstraction has 3406 states and 5735 transitions. [2018-10-24 15:28:02,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 15:28:02,872 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 5735 transitions. [2018-10-24 15:28:02,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1005 [2018-10-24 15:28:02,926 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:28:02,927 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:28:02,927 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:28:02,927 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:28:02,928 INFO L82 PathProgramCache]: Analyzing trace with hash -18150319, now seen corresponding path program 1 times [2018-10-24 15:28:02,928 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:28:02,928 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:28:02,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:28:02,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:28:02,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:28:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:28:03,886 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 15:28:03,886 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:28:03,887 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 15:28:03,890 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 15:28:03,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 15:28:03,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 15:28:03,891 INFO L87 Difference]: Start difference. First operand 3406 states and 5735 transitions. Second operand 3 states. [2018-10-24 15:28:11,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:28:11,982 INFO L93 Difference]: Finished difference Result 9865 states and 16737 transitions. [2018-10-24 15:28:11,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 15:28:11,983 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1004 [2018-10-24 15:28:11,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:28:12,018 INFO L225 Difference]: With dead ends: 9865 [2018-10-24 15:28:12,018 INFO L226 Difference]: Without dead ends: 6461 [2018-10-24 15:28:12,024 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 15:28:12,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6461 states. [2018-10-24 15:28:12,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6461 to 6443. [2018-10-24 15:28:12,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6443 states. [2018-10-24 15:28:12,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6443 states to 6443 states and 10176 transitions. [2018-10-24 15:28:12,140 INFO L78 Accepts]: Start accepts. Automaton has 6443 states and 10176 transitions. Word has length 1004 [2018-10-24 15:28:12,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:28:12,141 INFO L481 AbstractCegarLoop]: Abstraction has 6443 states and 10176 transitions. [2018-10-24 15:28:12,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 15:28:12,141 INFO L276 IsEmpty]: Start isEmpty. Operand 6443 states and 10176 transitions. [2018-10-24 15:28:12,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1018 [2018-10-24 15:28:12,163 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:28:12,164 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:28:12,164 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:28:12,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:28:12,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1161206629, now seen corresponding path program 1 times [2018-10-24 15:28:12,165 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:28:12,165 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:28:12,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:28:12,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:28:12,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:28:12,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:28:12,956 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-10-24 15:28:12,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:28:12,957 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 15:28:12,958 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 15:28:12,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 15:28:12,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 15:28:12,959 INFO L87 Difference]: Start difference. First operand 6443 states and 10176 transitions. Second operand 4 states. [2018-10-24 15:28:23,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:28:23,780 INFO L93 Difference]: Finished difference Result 24913 states and 39609 transitions. [2018-10-24 15:28:23,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 15:28:23,781 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1017 [2018-10-24 15:28:23,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:28:23,866 INFO L225 Difference]: With dead ends: 24913 [2018-10-24 15:28:23,866 INFO L226 Difference]: Without dead ends: 18472 [2018-10-24 15:28:23,879 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 15:28:23,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18472 states. [2018-10-24 15:28:24,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18472 to 18416. [2018-10-24 15:28:24,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18416 states. [2018-10-24 15:28:24,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18416 states to 18416 states and 26950 transitions. [2018-10-24 15:28:24,224 INFO L78 Accepts]: Start accepts. Automaton has 18416 states and 26950 transitions. Word has length 1017 [2018-10-24 15:28:24,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:28:24,225 INFO L481 AbstractCegarLoop]: Abstraction has 18416 states and 26950 transitions. [2018-10-24 15:28:24,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 15:28:24,225 INFO L276 IsEmpty]: Start isEmpty. Operand 18416 states and 26950 transitions. [2018-10-24 15:28:24,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1037 [2018-10-24 15:28:24,274 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:28:24,275 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:28:24,275 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:28:24,276 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:28:24,276 INFO L82 PathProgramCache]: Analyzing trace with hash -808132497, now seen corresponding path program 1 times [2018-10-24 15:28:24,276 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:28:24,276 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:28:24,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:28:24,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:28:24,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:28:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:28:25,210 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-10-24 15:28:25,211 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:28:25,211 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 15:28:25,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 15:28:25,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 15:28:25,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 15:28:25,213 INFO L87 Difference]: Start difference. First operand 18416 states and 26950 transitions. Second operand 3 states. [2018-10-24 15:28:32,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:28:32,295 INFO L93 Difference]: Finished difference Result 54907 states and 80424 transitions. [2018-10-24 15:28:32,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 15:28:32,295 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1036 [2018-10-24 15:28:32,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:28:32,386 INFO L225 Difference]: With dead ends: 54907 [2018-10-24 15:28:32,387 INFO L226 Difference]: Without dead ends: 36493 [2018-10-24 15:28:32,417 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 15:28:32,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36493 states. [2018-10-24 15:28:32,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36493 to 36477. [2018-10-24 15:28:32,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36477 states. [2018-10-24 15:28:32,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36477 states to 36477 states and 50205 transitions. [2018-10-24 15:28:32,935 INFO L78 Accepts]: Start accepts. Automaton has 36477 states and 50205 transitions. Word has length 1036 [2018-10-24 15:28:32,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:28:32,935 INFO L481 AbstractCegarLoop]: Abstraction has 36477 states and 50205 transitions. [2018-10-24 15:28:32,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 15:28:32,935 INFO L276 IsEmpty]: Start isEmpty. Operand 36477 states and 50205 transitions. [2018-10-24 15:28:33,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1046 [2018-10-24 15:28:33,023 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:28:33,024 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:28:33,024 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:28:33,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:28:33,025 INFO L82 PathProgramCache]: Analyzing trace with hash 866994924, now seen corresponding path program 1 times [2018-10-24 15:28:33,025 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:28:33,025 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:28:33,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:28:33,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:28:33,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:28:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:28:34,059 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-10-24 15:28:34,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:28:34,059 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 15:28:34,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 15:28:34,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 15:28:34,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 15:28:34,061 INFO L87 Difference]: Start difference. First operand 36477 states and 50205 transitions. Second operand 3 states. [2018-10-24 15:28:40,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:28:40,721 INFO L93 Difference]: Finished difference Result 108851 states and 149876 transitions. [2018-10-24 15:28:40,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 15:28:40,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1045 [2018-10-24 15:28:40,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:28:40,864 INFO L225 Difference]: With dead ends: 108851 [2018-10-24 15:28:40,864 INFO L226 Difference]: Without dead ends: 72376 [2018-10-24 15:28:40,913 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 15:28:40,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72376 states. [2018-10-24 15:28:41,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72376 to 72342. [2018-10-24 15:28:41,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72342 states. [2018-10-24 15:28:41,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72342 states to 72342 states and 93865 transitions. [2018-10-24 15:28:41,746 INFO L78 Accepts]: Start accepts. Automaton has 72342 states and 93865 transitions. Word has length 1045 [2018-10-24 15:28:41,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:28:41,747 INFO L481 AbstractCegarLoop]: Abstraction has 72342 states and 93865 transitions. [2018-10-24 15:28:41,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 15:28:41,747 INFO L276 IsEmpty]: Start isEmpty. Operand 72342 states and 93865 transitions. [2018-10-24 15:28:41,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1070 [2018-10-24 15:28:41,825 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:28:41,826 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:28:41,826 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:28:41,826 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:28:41,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1087228027, now seen corresponding path program 1 times [2018-10-24 15:28:41,828 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:28:41,828 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:28:41,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:28:41,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:28:41,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:28:41,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:28:43,183 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 15:28:43,184 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:28:43,184 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 15:28:43,185 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 15:28:43,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 15:28:43,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 15:28:43,186 INFO L87 Difference]: Start difference. First operand 72342 states and 93865 transitions. Second operand 3 states. [2018-10-24 15:28:51,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:28:51,455 INFO L93 Difference]: Finished difference Result 215398 states and 279379 transitions. [2018-10-24 15:28:51,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 15:28:51,455 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1069 [2018-10-24 15:28:51,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:28:51,628 INFO L225 Difference]: With dead ends: 215398 [2018-10-24 15:28:51,628 INFO L226 Difference]: Without dead ends: 143058 [2018-10-24 15:28:51,695 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 15:28:51,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143058 states. [2018-10-24 15:28:53,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143058 to 142931. [2018-10-24 15:28:53,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142931 states. [2018-10-24 15:28:53,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142931 states to 142931 states and 174391 transitions. [2018-10-24 15:28:53,678 INFO L78 Accepts]: Start accepts. Automaton has 142931 states and 174391 transitions. Word has length 1069 [2018-10-24 15:28:53,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:28:53,679 INFO L481 AbstractCegarLoop]: Abstraction has 142931 states and 174391 transitions. [2018-10-24 15:28:53,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 15:28:53,679 INFO L276 IsEmpty]: Start isEmpty. Operand 142931 states and 174391 transitions. [2018-10-24 15:28:53,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1094 [2018-10-24 15:28:53,826 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:28:53,827 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:28:53,828 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:28:53,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:28:53,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1174798903, now seen corresponding path program 1 times [2018-10-24 15:28:53,829 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:28:53,829 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:28:53,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:28:53,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:28:53,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:28:53,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:28:54,488 WARN L179 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 7 [2018-10-24 15:28:55,233 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-10-24 15:28:55,233 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:28:55,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 15:28:55,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 15:28:55,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 15:28:55,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 15:28:55,237 INFO L87 Difference]: Start difference. First operand 142931 states and 174391 transitions. Second operand 4 states. [2018-10-24 15:29:07,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:29:07,188 INFO L93 Difference]: Finished difference Result 429537 states and 515695 transitions. [2018-10-24 15:29:07,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 15:29:07,189 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1093 [2018-10-24 15:29:07,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:29:07,555 INFO L225 Difference]: With dead ends: 429537 [2018-10-24 15:29:07,555 INFO L226 Difference]: Without dead ends: 286608 [2018-10-24 15:29:07,666 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 15:29:07,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286608 states. [2018-10-24 15:29:10,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286608 to 214743. [2018-10-24 15:29:10,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214743 states. [2018-10-24 15:29:10,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214743 states to 214743 states and 257470 transitions. [2018-10-24 15:29:10,783 INFO L78 Accepts]: Start accepts. Automaton has 214743 states and 257470 transitions. Word has length 1093 [2018-10-24 15:29:10,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:29:10,783 INFO L481 AbstractCegarLoop]: Abstraction has 214743 states and 257470 transitions. [2018-10-24 15:29:10,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 15:29:10,783 INFO L276 IsEmpty]: Start isEmpty. Operand 214743 states and 257470 transitions. [2018-10-24 15:29:10,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1115 [2018-10-24 15:29:10,941 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:29:10,942 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:29:10,942 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:29:10,942 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:29:10,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1823242155, now seen corresponding path program 1 times [2018-10-24 15:29:10,943 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:29:10,943 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:29:10,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:29:10,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:29:10,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:29:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:29:13,525 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 203 proven. 5 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-10-24 15:29:13,525 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 15:29:13,526 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 15:29:13,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:29:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:29:13,987 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 15:29:15,781 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-10-24 15:29:15,807 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 15:29:15,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-24 15:29:15,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 15:29:15,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 15:29:15,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 15:29:15,810 INFO L87 Difference]: Start difference. First operand 214743 states and 257470 transitions. Second operand 5 states. [2018-10-24 15:29:33,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:29:33,782 INFO L93 Difference]: Finished difference Result 532105 states and 642947 transitions. [2018-10-24 15:29:33,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 15:29:33,783 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1114 [2018-10-24 15:29:33,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:29:34,199 INFO L225 Difference]: With dead ends: 532105 [2018-10-24 15:29:34,200 INFO L226 Difference]: Without dead ends: 317364 [2018-10-24 15:29:34,279 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1122 GetRequests, 1116 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 15:29:34,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317364 states. [2018-10-24 15:29:44,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317364 to 317192. [2018-10-24 15:29:44,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317192 states. [2018-10-24 15:29:44,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317192 states to 317192 states and 361383 transitions. [2018-10-24 15:29:44,560 INFO L78 Accepts]: Start accepts. Automaton has 317192 states and 361383 transitions. Word has length 1114 [2018-10-24 15:29:44,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:29:44,560 INFO L481 AbstractCegarLoop]: Abstraction has 317192 states and 361383 transitions. [2018-10-24 15:29:44,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 15:29:44,560 INFO L276 IsEmpty]: Start isEmpty. Operand 317192 states and 361383 transitions. [2018-10-24 15:29:44,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1146 [2018-10-24 15:29:44,809 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:29:44,809 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:29:44,810 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:29:44,810 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:29:44,810 INFO L82 PathProgramCache]: Analyzing trace with hash -273556148, now seen corresponding path program 1 times [2018-10-24 15:29:44,811 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:29:44,811 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:29:44,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:29:44,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:29:44,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:29:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:29:46,638 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 217 proven. 8 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-10-24 15:29:46,638 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 15:29:46,639 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 15:29:46,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:29:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:29:47,059 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 15:29:47,950 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-10-24 15:29:47,974 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 15:29:47,975 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2018-10-24 15:29:47,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 15:29:47,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 15:29:47,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 15:29:47,977 INFO L87 Difference]: Start difference. First operand 317192 states and 361383 transitions. Second operand 4 states. [2018-10-24 15:29:57,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:29:57,502 INFO L93 Difference]: Finished difference Result 1265515 states and 1441792 transitions. [2018-10-24 15:29:57,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 15:29:57,503 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1145 [2018-10-24 15:29:57,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:29:59,657 INFO L225 Difference]: With dead ends: 1265515 [2018-10-24 15:29:59,657 INFO L226 Difference]: Without dead ends: 948325 [2018-10-24 15:29:59,963 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1148 GetRequests, 1145 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 15:30:00,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948325 states. [2018-10-24 15:30:10,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948325 to 632179. [2018-10-24 15:30:10,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632179 states. [2018-10-24 15:30:11,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632179 states to 632179 states and 720009 transitions. [2018-10-24 15:30:11,336 INFO L78 Accepts]: Start accepts. Automaton has 632179 states and 720009 transitions. Word has length 1145 [2018-10-24 15:30:11,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:30:11,336 INFO L481 AbstractCegarLoop]: Abstraction has 632179 states and 720009 transitions. [2018-10-24 15:30:11,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 15:30:11,337 INFO L276 IsEmpty]: Start isEmpty. Operand 632179 states and 720009 transitions. [2018-10-24 15:30:11,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1149 [2018-10-24 15:30:11,964 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:30:11,965 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:30:11,965 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:30:11,965 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:30:11,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1071662631, now seen corresponding path program 1 times [2018-10-24 15:30:11,966 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:30:11,966 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:30:11,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:30:11,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:30:11,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:30:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:30:12,639 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 8 [2018-10-24 15:30:21,241 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-10-24 15:30:21,241 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:30:21,241 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 15:30:21,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 15:30:21,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 15:30:21,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 15:30:21,243 INFO L87 Difference]: Start difference. First operand 632179 states and 720009 transitions. Second operand 5 states. [2018-10-24 15:30:44,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:30:44,046 INFO L93 Difference]: Finished difference Result 1784733 states and 2055932 transitions. [2018-10-24 15:30:44,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 15:30:44,046 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1148 [2018-10-24 15:30:44,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:30:46,151 INFO L225 Difference]: With dead ends: 1784733 [2018-10-24 15:30:46,152 INFO L226 Difference]: Without dead ends: 1152556 [2018-10-24 15:30:46,532 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 15:30:47,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152556 states. Received shutdown request... [2018-10-24 15:30:53,778 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 15:30:53,783 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 15:30:53,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:30:53 BoogieIcfgContainer [2018-10-24 15:30:53,784 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 15:30:53,785 INFO L168 Benchmark]: Toolchain (without parser) took 207063.88 ms. Allocated memory was 1.5 GB in the beginning and 5.9 GB in the end (delta: 4.4 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -527.8 MB). Peak memory consumption was 4.2 GB. Max. memory is 7.1 GB. [2018-10-24 15:30:53,786 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 15:30:53,786 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3504.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 359.4 MB). Peak memory consumption was 359.4 MB. Max. memory is 7.1 GB. [2018-10-24 15:30:53,787 INFO L168 Benchmark]: Boogie Procedure Inliner took 835.36 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 831.5 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 108.2 MB. Max. memory is 7.1 GB. [2018-10-24 15:30:53,790 INFO L168 Benchmark]: Boogie Preprocessor took 376.54 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 51.5 MB). Peak memory consumption was 51.5 MB. Max. memory is 7.1 GB. [2018-10-24 15:30:53,791 INFO L168 Benchmark]: RCFGBuilder took 11227.62 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 224.4 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 416.3 MB). Peak memory consumption was 648.1 MB. Max. memory is 7.1 GB. [2018-10-24 15:30:53,792 INFO L168 Benchmark]: TraceAbstraction took 191114.66 ms. Allocated memory was 2.6 GB in the beginning and 5.9 GB in the end (delta: 3.3 GB). Free memory was 1.7 GB in the beginning and 1.9 GB in the end (delta: -167.7 MB). Peak memory consumption was 3.5 GB. Max. memory is 7.1 GB. [2018-10-24 15:30:53,801 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3504.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 359.4 MB). Peak memory consumption was 359.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 835.36 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 831.5 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 108.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 376.54 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 51.5 MB). Peak memory consumption was 51.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11227.62 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 224.4 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 416.3 MB). Peak memory consumption was 648.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 191114.66 ms. Allocated memory was 2.6 GB in the beginning and 5.9 GB in the end (delta: 3.3 GB). Free memory was 1.7 GB in the beginning and 1.9 GB in the end (delta: -167.7 MB). Peak memory consumption was 3.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 9426]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 9426). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1291 locations, 1 error locations. TIMEOUT Result, 191.0s OverallTime, 10 OverallIterations, 7 TraceHistogramMax, 125.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11958 SDtfs, 27980 SDslu, 8322 SDs, 0 SdLazy, 48088 SolverSat, 13902 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 85.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2297 GetRequests, 2271 SyntacticMatches, 6 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=632179occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 35.9s AutomataMinimizationTime, 10 MinimizatonAttempts, 388469 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.8s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 7.9s InterpolantComputationTime, 12909 NumberOfCodeBlocks, 12909 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 12897 ConstructedInterpolants, 0 QuantifiedInterpolants, 18856474 SizeOfPredicates, 1 NumberOfNonLiveVariables, 2901 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 2024/2037 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown