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_label38_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 13:35:14,283 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 13:35:14,286 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 13:35:14,304 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 13:35:14,305 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 13:35:14,306 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 13:35:14,307 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 13:35:14,310 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 13:35:14,312 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 13:35:14,313 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 13:35:14,314 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 13:35:14,314 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 13:35:14,315 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 13:35:14,316 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 13:35:14,317 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 13:35:14,318 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 13:35:14,319 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 13:35:14,321 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 13:35:14,323 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 13:35:14,324 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 13:35:14,325 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 13:35:14,327 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 13:35:14,329 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 13:35:14,330 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 13:35:14,330 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 13:35:14,331 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 13:35:14,332 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 13:35:14,333 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 13:35:14,334 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 13:35:14,337 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 13:35:14,337 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 13:35:14,341 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 13:35:14,342 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 13:35:14,342 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 13:35:14,343 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 13:35:14,344 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 13:35:14,344 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 13:35:14,369 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 13:35:14,370 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 13:35:14,371 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 13:35:14,371 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 13:35:14,371 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 13:35:14,372 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 13:35:14,372 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 13:35:14,372 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 13:35:14,372 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 13:35:14,373 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 13:35:14,373 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 13:35:14,373 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 13:35:14,373 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 13:35:14,373 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 13:35:14,373 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 13:35:14,374 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 13:35:14,374 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 13:35:14,374 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 13:35:14,374 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 13:35:14,375 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 13:35:14,375 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 13:35:14,375 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 13:35:14,375 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 13:35:14,375 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 13:35:14,376 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 13:35:14,376 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 13:35:14,376 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 13:35:14,376 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 13:35:14,434 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 13:35:14,447 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 13:35:14,451 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 13:35:14,453 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 13:35:14,453 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 13:35:14,454 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem06_label38_false-unreach-call.c [2018-10-24 13:35:14,529 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3fee66fab/cc9611bce8eb463b81261e0d2320c584/FLAG0c38d966e [2018-10-24 13:35:15,515 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 13:35:15,516 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem06_label38_false-unreach-call.c [2018-10-24 13:35:15,567 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3fee66fab/cc9611bce8eb463b81261e0d2320c584/FLAG0c38d966e [2018-10-24 13:35:15,586 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3fee66fab/cc9611bce8eb463b81261e0d2320c584 [2018-10-24 13:35:15,599 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 13:35:15,601 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 13:35:15,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 13:35:15,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 13:35:15,608 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 13:35:15,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:35:15" (1/1) ... [2018-10-24 13:35:15,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@769a0e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:15, skipping insertion in model container [2018-10-24 13:35:15,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:35:15" (1/1) ... [2018-10-24 13:35:15,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 13:35:15,864 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 13:35:18,012 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 13:35:18,018 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 13:35:19,026 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 13:35:19,092 INFO L193 MainTranslator]: Completed translation [2018-10-24 13:35:19,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:19 WrapperNode [2018-10-24 13:35:19,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 13:35:19,094 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 13:35:19,094 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 13:35:19,094 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 13:35:19,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:19" (1/1) ... [2018-10-24 13:35:19,197 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:19" (1/1) ... [2018-10-24 13:35:20,007 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 13:35:20,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 13:35:20,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 13:35:20,008 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 13:35:20,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:19" (1/1) ... [2018-10-24 13:35:20,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:19" (1/1) ... [2018-10-24 13:35:20,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:19" (1/1) ... [2018-10-24 13:35:20,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:19" (1/1) ... [2018-10-24 13:35:20,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:19" (1/1) ... [2018-10-24 13:35:20,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:19" (1/1) ... [2018-10-24 13:35:20,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:19" (1/1) ... [2018-10-24 13:35:20,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 13:35:20,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 13:35:20,506 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 13:35:20,506 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 13:35:20,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:19" (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 13:35:20,577 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 13:35:20,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 13:35:20,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 13:35:31,208 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 13:35:31,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:35:31 BoogieIcfgContainer [2018-10-24 13:35:31,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 13:35:31,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 13:35:31,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 13:35:31,213 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 13:35:31,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:35:15" (1/3) ... [2018-10-24 13:35:31,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29590c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:35:31, skipping insertion in model container [2018-10-24 13:35:31,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:19" (2/3) ... [2018-10-24 13:35:31,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29590c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:35:31, skipping insertion in model container [2018-10-24 13:35:31,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:35:31" (3/3) ... [2018-10-24 13:35:31,217 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem06_label38_false-unreach-call.c [2018-10-24 13:35:31,227 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 13:35:31,237 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 13:35:31,255 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 13:35:31,298 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 13:35:31,299 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 13:35:31,299 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 13:35:31,299 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 13:35:31,300 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 13:35:31,300 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 13:35:31,300 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 13:35:31,300 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 13:35:31,300 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 13:35:31,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1291 states. [2018-10-24 13:35:31,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 940 [2018-10-24 13:35:31,416 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:35:31,420 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] [2018-10-24 13:35:31,422 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:35:31,429 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:35:31,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1954449409, now seen corresponding path program 1 times [2018-10-24 13:35:31,433 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:35:31,433 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:35:31,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:35:31,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:35:31,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:35:32,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:35:35,104 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 13:35:35,107 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:35:35,107 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 13:35:35,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 13:35:35,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 13:35:35,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 13:35:35,131 INFO L87 Difference]: Start difference. First operand 1291 states. Second operand 4 states. [2018-10-24 13:35:50,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:35:50,680 INFO L93 Difference]: Finished difference Result 4730 states and 8997 transitions. [2018-10-24 13:35:50,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 13:35:50,683 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 939 [2018-10-24 13:35:50,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:35:50,743 INFO L225 Difference]: With dead ends: 4730 [2018-10-24 13:35:50,744 INFO L226 Difference]: Without dead ends: 3432 [2018-10-24 13:35:50,754 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 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 13:35:50,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2018-10-24 13:35:50,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 3350. [2018-10-24 13:35:50,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3350 states. [2018-10-24 13:35:50,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3350 states to 3350 states and 5805 transitions. [2018-10-24 13:35:50,938 INFO L78 Accepts]: Start accepts. Automaton has 3350 states and 5805 transitions. Word has length 939 [2018-10-24 13:35:50,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:35:50,944 INFO L481 AbstractCegarLoop]: Abstraction has 3350 states and 5805 transitions. [2018-10-24 13:35:50,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 13:35:50,945 INFO L276 IsEmpty]: Start isEmpty. Operand 3350 states and 5805 transitions. [2018-10-24 13:35:50,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 951 [2018-10-24 13:35:50,992 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:35:50,993 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2018-10-24 13:35:50,993 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:35:50,994 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:35:50,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1851359696, now seen corresponding path program 1 times [2018-10-24 13:35:50,994 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:35:50,994 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:35:50,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:35:50,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:35:50,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:35:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:35:51,815 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-24 13:35:51,815 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:35:51,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 13:35:51,819 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 13:35:51,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 13:35:51,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 13:35:51,820 INFO L87 Difference]: Start difference. First operand 3350 states and 5805 transitions. Second operand 3 states. [2018-10-24 13:35:56,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:35:56,263 INFO L93 Difference]: Finished difference Result 10029 states and 17394 transitions. [2018-10-24 13:35:56,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 13:35:56,264 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 950 [2018-10-24 13:35:56,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:35:56,300 INFO L225 Difference]: With dead ends: 10029 [2018-10-24 13:35:56,300 INFO L226 Difference]: Without dead ends: 6681 [2018-10-24 13:35:56,307 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 13:35:56,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6681 states. [2018-10-24 13:35:56,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6681 to 6677. [2018-10-24 13:35:56,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6677 states. [2018-10-24 13:35:56,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6677 states to 6677 states and 11556 transitions. [2018-10-24 13:35:56,445 INFO L78 Accepts]: Start accepts. Automaton has 6677 states and 11556 transitions. Word has length 950 [2018-10-24 13:35:56,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:35:56,445 INFO L481 AbstractCegarLoop]: Abstraction has 6677 states and 11556 transitions. [2018-10-24 13:35:56,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 13:35:56,445 INFO L276 IsEmpty]: Start isEmpty. Operand 6677 states and 11556 transitions. [2018-10-24 13:35:56,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 958 [2018-10-24 13:35:56,467 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:35:56,468 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:35:56,468 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:35:56,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:35:56,469 INFO L82 PathProgramCache]: Analyzing trace with hash 309857246, now seen corresponding path program 1 times [2018-10-24 13:35:56,469 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:35:56,469 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:35:56,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:35:56,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:35:56,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:35:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:35:57,398 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-24 13:35:57,398 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:35:57,399 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 13:35:57,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 13:35:57,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 13:35:57,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 13:35:57,401 INFO L87 Difference]: Start difference. First operand 6677 states and 11556 transitions. Second operand 4 states. [2018-10-24 13:36:08,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:36:08,072 INFO L93 Difference]: Finished difference Result 25450 states and 44594 transitions. [2018-10-24 13:36:08,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 13:36:08,074 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 957 [2018-10-24 13:36:08,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:36:08,157 INFO L225 Difference]: With dead ends: 25450 [2018-10-24 13:36:08,158 INFO L226 Difference]: Without dead ends: 18775 [2018-10-24 13:36:08,174 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 13:36:08,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18775 states. [2018-10-24 13:36:08,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18775 to 18699. [2018-10-24 13:36:08,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18699 states. [2018-10-24 13:36:08,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18699 states to 18699 states and 29291 transitions. [2018-10-24 13:36:08,577 INFO L78 Accepts]: Start accepts. Automaton has 18699 states and 29291 transitions. Word has length 957 [2018-10-24 13:36:08,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:36:08,577 INFO L481 AbstractCegarLoop]: Abstraction has 18699 states and 29291 transitions. [2018-10-24 13:36:08,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 13:36:08,578 INFO L276 IsEmpty]: Start isEmpty. Operand 18699 states and 29291 transitions. [2018-10-24 13:36:08,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 969 [2018-10-24 13:36:08,632 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:36:08,632 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 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] [2018-10-24 13:36:08,633 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:36:08,633 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:36:08,634 INFO L82 PathProgramCache]: Analyzing trace with hash -178155954, now seen corresponding path program 1 times [2018-10-24 13:36:08,634 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:36:08,634 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:36:08,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:36:08,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:36:08,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:36:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:36:09,951 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-10-24 13:36:09,951 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:36:09,952 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 13:36:09,953 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 13:36:09,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 13:36:09,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 13:36:09,954 INFO L87 Difference]: Start difference. First operand 18699 states and 29291 transitions. Second operand 3 states. [2018-10-24 13:36:16,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:36:16,288 INFO L93 Difference]: Finished difference Result 55395 states and 86966 transitions. [2018-10-24 13:36:16,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 13:36:16,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 968 [2018-10-24 13:36:16,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:36:16,366 INFO L225 Difference]: With dead ends: 55395 [2018-10-24 13:36:16,366 INFO L226 Difference]: Without dead ends: 36698 [2018-10-24 13:36:16,395 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 13:36:16,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36698 states. [2018-10-24 13:36:16,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36698 to 36680. [2018-10-24 13:36:16,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36680 states. [2018-10-24 13:36:16,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36680 states to 36680 states and 53583 transitions. [2018-10-24 13:36:16,898 INFO L78 Accepts]: Start accepts. Automaton has 36680 states and 53583 transitions. Word has length 968 [2018-10-24 13:36:16,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:36:16,898 INFO L481 AbstractCegarLoop]: Abstraction has 36680 states and 53583 transitions. [2018-10-24 13:36:16,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 13:36:16,898 INFO L276 IsEmpty]: Start isEmpty. Operand 36680 states and 53583 transitions. [2018-10-24 13:36:16,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 977 [2018-10-24 13:36:16,964 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:36:16,965 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2018-10-24 13:36:16,965 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:36:16,965 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:36:16,965 INFO L82 PathProgramCache]: Analyzing trace with hash 344010298, now seen corresponding path program 1 times [2018-10-24 13:36:16,966 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:36:16,966 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:36:16,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:36:16,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:36:16,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:36:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:36:18,061 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-10-24 13:36:18,062 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:36:18,062 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 13:36:18,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 13:36:18,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 13:36:18,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 13:36:18,064 INFO L87 Difference]: Start difference. First operand 36680 states and 53583 transitions. Second operand 3 states. [2018-10-24 13:36:25,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:36:25,123 INFO L93 Difference]: Finished difference Result 109268 states and 159776 transitions. [2018-10-24 13:36:25,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 13:36:25,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 976 [2018-10-24 13:36:25,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:36:25,229 INFO L225 Difference]: With dead ends: 109268 [2018-10-24 13:36:25,229 INFO L226 Difference]: Without dead ends: 72590 [2018-10-24 13:36:25,282 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 13:36:25,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72590 states. [2018-10-24 13:36:26,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72590 to 72550. [2018-10-24 13:36:26,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72550 states. [2018-10-24 13:36:26,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72550 states to 72550 states and 98811 transitions. [2018-10-24 13:36:26,560 INFO L78 Accepts]: Start accepts. Automaton has 72550 states and 98811 transitions. Word has length 976 [2018-10-24 13:36:26,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:36:26,560 INFO L481 AbstractCegarLoop]: Abstraction has 72550 states and 98811 transitions. [2018-10-24 13:36:26,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 13:36:26,561 INFO L276 IsEmpty]: Start isEmpty. Operand 72550 states and 98811 transitions. [2018-10-24 13:36:26,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 992 [2018-10-24 13:36:26,643 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:36:26,644 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 13:36:26,644 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:36:26,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:36:26,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1421361613, now seen corresponding path program 1 times [2018-10-24 13:36:26,645 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:36:26,645 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:36:26,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:36:26,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:36:26,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:36:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:36:27,629 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 59 proven. 5 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-10-24 13:36:27,629 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 13:36:27,629 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 13:36:27,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:36:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:36:28,110 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 13:36:29,241 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-10-24 13:36:29,263 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 13:36:29,264 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-10-24 13:36:29,266 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 13:36:29,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 13:36:29,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 13:36:29,267 INFO L87 Difference]: Start difference. First operand 72550 states and 98811 transitions. Second operand 5 states. [2018-10-24 13:36:42,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:36:42,608 INFO L93 Difference]: Finished difference Result 288584 states and 393197 transitions. [2018-10-24 13:36:42,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 13:36:42,609 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 991 [2018-10-24 13:36:42,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:36:43,017 INFO L225 Difference]: With dead ends: 288584 [2018-10-24 13:36:43,018 INFO L226 Difference]: Without dead ends: 216036 [2018-10-24 13:36:43,673 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 994 GetRequests, 990 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 13:36:43,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216036 states. [2018-10-24 13:36:46,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216036 to 215920. [2018-10-24 13:36:46,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215920 states. [2018-10-24 13:36:46,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215920 states to 215920 states and 276839 transitions. [2018-10-24 13:36:46,595 INFO L78 Accepts]: Start accepts. Automaton has 215920 states and 276839 transitions. Word has length 991 [2018-10-24 13:36:46,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:36:46,596 INFO L481 AbstractCegarLoop]: Abstraction has 215920 states and 276839 transitions. [2018-10-24 13:36:46,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 13:36:46,596 INFO L276 IsEmpty]: Start isEmpty. Operand 215920 states and 276839 transitions. [2018-10-24 13:36:46,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1037 [2018-10-24 13:36:46,993 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:36:46,994 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:36:46,994 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:36:46,994 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:36:46,995 INFO L82 PathProgramCache]: Analyzing trace with hash 808381016, now seen corresponding path program 1 times [2018-10-24 13:36:46,995 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:36:46,995 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:36:46,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:36:46,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:36:46,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:36:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:36:49,138 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2018-10-24 13:36:49,139 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:36:49,139 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 13:36:49,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 13:36:49,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 13:36:49,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 13:36:49,145 INFO L87 Difference]: Start difference. First operand 215920 states and 276839 transitions. Second operand 3 states. [2018-10-24 13:36:58,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:36:58,470 INFO L93 Difference]: Finished difference Result 537590 states and 682065 transitions. [2018-10-24 13:36:58,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 13:36:58,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1036 [2018-10-24 13:36:58,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:36:58,922 INFO L225 Difference]: With dead ends: 537590 [2018-10-24 13:36:58,923 INFO L226 Difference]: Without dead ends: 321672 [2018-10-24 13:36:59,021 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 13:36:59,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321672 states. [2018-10-24 13:37:01,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321672 to 321633. [2018-10-24 13:37:01,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321633 states. [2018-10-24 13:37:12,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321633 states to 321633 states and 404451 transitions. [2018-10-24 13:37:12,565 INFO L78 Accepts]: Start accepts. Automaton has 321633 states and 404451 transitions. Word has length 1036 [2018-10-24 13:37:12,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:37:12,565 INFO L481 AbstractCegarLoop]: Abstraction has 321633 states and 404451 transitions. [2018-10-24 13:37:12,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 13:37:12,566 INFO L276 IsEmpty]: Start isEmpty. Operand 321633 states and 404451 transitions. [2018-10-24 13:37:12,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1080 [2018-10-24 13:37:12,802 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:37:12,803 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:12,803 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:37:12,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:37:12,804 INFO L82 PathProgramCache]: Analyzing trace with hash 111924330, now seen corresponding path program 1 times [2018-10-24 13:37:12,804 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:37:12,804 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:37:12,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:37:12,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:37:12,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:37:12,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:37:13,418 WARN L179 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 7 [2018-10-24 13:37:14,324 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2018-10-24 13:37:14,324 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:37:14,325 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 13:37:14,325 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 13:37:14,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 13:37:14,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 13:37:14,326 INFO L87 Difference]: Start difference. First operand 321633 states and 404451 transitions. Second operand 4 states. [2018-10-24 13:37:28,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:37:28,287 INFO L93 Difference]: Finished difference Result 960456 states and 1185460 transitions. [2018-10-24 13:37:28,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 13:37:28,288 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1079 [2018-10-24 13:37:28,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:37:29,372 INFO L225 Difference]: With dead ends: 960456 [2018-10-24 13:37:29,373 INFO L226 Difference]: Without dead ends: 638825 [2018-10-24 13:37:29,538 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 13:37:29,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638825 states. [2018-10-24 13:37:35,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638825 to 480186. [2018-10-24 13:37:35,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480186 states. [2018-10-24 13:37:36,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480186 states to 480186 states and 591906 transitions. [2018-10-24 13:37:36,593 INFO L78 Accepts]: Start accepts. Automaton has 480186 states and 591906 transitions. Word has length 1079 [2018-10-24 13:37:36,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:37:36,594 INFO L481 AbstractCegarLoop]: Abstraction has 480186 states and 591906 transitions. [2018-10-24 13:37:36,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 13:37:36,594 INFO L276 IsEmpty]: Start isEmpty. Operand 480186 states and 591906 transitions. [2018-10-24 13:37:39,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1115 [2018-10-24 13:37:39,006 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:37:39,007 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-10-24 13:37:39,007 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:37:39,007 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:37:39,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1384580633, now seen corresponding path program 1 times [2018-10-24 13:37:39,008 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:37:39,008 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:37:39,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:37:39,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:37:39,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:37:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:37:40,931 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 264 proven. 9 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-10-24 13:37:40,931 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 13:37:40,931 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 13:37:40,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:37:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:37:41,351 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 13:37:42,269 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2018-10-24 13:37:42,312 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 13:37:42,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-24 13:37:42,315 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 13:37:42,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 13:37:42,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 13:37:42,316 INFO L87 Difference]: Start difference. First operand 480186 states and 591906 transitions. Second operand 5 states. [2018-10-24 13:37:56,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:37:56,481 INFO L93 Difference]: Finished difference Result 960562 states and 1184180 transitions. [2018-10-24 13:37:56,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 13:37:56,481 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1114 [2018-10-24 13:37:56,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:37:57,096 INFO L225 Difference]: With dead ends: 960562 [2018-10-24 13:37:57,096 INFO L226 Difference]: Without dead ends: 480378 [2018-10-24 13:37:57,255 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1119 GetRequests, 1114 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 13:37:57,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480378 states. [2018-10-24 13:38:09,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480378 to 480186. [2018-10-24 13:38:09,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480186 states. [2018-10-24 13:38:11,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480186 states to 480186 states and 562365 transitions. [2018-10-24 13:38:11,450 INFO L78 Accepts]: Start accepts. Automaton has 480186 states and 562365 transitions. Word has length 1114 [2018-10-24 13:38:11,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:38:11,451 INFO L481 AbstractCegarLoop]: Abstraction has 480186 states and 562365 transitions. [2018-10-24 13:38:11,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 13:38:11,451 INFO L276 IsEmpty]: Start isEmpty. Operand 480186 states and 562365 transitions. [2018-10-24 13:38:11,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1120 [2018-10-24 13:38:11,811 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:38:11,812 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:11,812 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:38:11,812 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:38:11,813 INFO L82 PathProgramCache]: Analyzing trace with hash 728601629, now seen corresponding path program 1 times [2018-10-24 13:38:11,813 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:38:11,813 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:38:11,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:38:11,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:38:11,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:38:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:38:12,287 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-10-24 13:38:13,777 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2018-10-24 13:38:13,777 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:38:13,777 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 13:38:13,778 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 13:38:13,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 13:38:13,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 13:38:13,779 INFO L87 Difference]: Start difference. First operand 480186 states and 562365 transitions. Second operand 4 states. [2018-10-24 13:38:32,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:38:32,776 INFO L93 Difference]: Finished difference Result 1821421 states and 2129221 transitions. [2018-10-24 13:38:32,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 13:38:32,777 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1119 [2018-10-24 13:38:32,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:38:36,665 INFO L225 Difference]: With dead ends: 1821421 [2018-10-24 13:38:36,665 INFO L226 Difference]: Without dead ends: 1341237 [2018-10-24 13:38:36,916 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 13:38:37,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341237 states. Received shutdown request... [2018-10-24 13:38:38,026 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 13:38:38,030 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 13:38:38,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 01:38:38 BoogieIcfgContainer [2018-10-24 13:38:38,030 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 13:38:38,031 INFO L168 Benchmark]: Toolchain (without parser) took 202431.47 ms. Allocated memory was 1.5 GB in the beginning and 5.9 GB in the end (delta: 4.3 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -938.4 MB). Peak memory consumption was 4.3 GB. Max. memory is 7.1 GB. [2018-10-24 13:38:38,032 INFO L168 Benchmark]: CDTParser took 0.26 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 13:38:38,033 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3491.22 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: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. [2018-10-24 13:38:38,034 INFO L168 Benchmark]: Boogie Procedure Inliner took 913.76 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 837.8 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 108.3 MB. Max. memory is 7.1 GB. [2018-10-24 13:38:38,035 INFO L168 Benchmark]: Boogie Preprocessor took 497.73 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: 53.0 MB). Peak memory consumption was 53.0 MB. Max. memory is 7.1 GB. [2018-10-24 13:38:38,036 INFO L168 Benchmark]: RCFGBuilder took 10702.73 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 228.6 MB). Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 389.0 MB). Peak memory consumption was 650.6 MB. Max. memory is 7.1 GB. [2018-10-24 13:38:38,037 INFO L168 Benchmark]: TraceAbstraction took 186820.88 ms. Allocated memory was 2.6 GB in the beginning and 5.9 GB in the end (delta: 3.3 GB). Free memory was 1.8 GB in the beginning and 2.3 GB in the end (delta: -563.4 MB). Peak memory consumption was 3.6 GB. Max. memory is 7.1 GB. [2018-10-24 13:38:38,045 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 3491.22 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: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 913.76 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 837.8 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 108.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 497.73 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: 53.0 MB). Peak memory consumption was 53.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10702.73 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 228.6 MB). Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 389.0 MB). Peak memory consumption was 650.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 186820.88 ms. Allocated memory was 2.6 GB in the beginning and 5.9 GB in the end (delta: 3.3 GB). Free memory was 1.8 GB in the beginning and 2.3 GB in the end (delta: -563.4 MB). Peak memory consumption was 3.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 9306]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 9306). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1291 locations, 1 error locations. TIMEOUT Result, 186.7s OverallTime, 10 OverallIterations, 7 TraceHistogramMax, 122.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12785 SDtfs, 23406 SDslu, 5073 SDs, 0 SdLazy, 48459 SolverSat, 12401 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 78.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2136 GetRequests, 2113 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=480186occurred in iteration=8, 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: 41.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 159206 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.9s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 12234 NumberOfCodeBlocks, 12234 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 12222 ConstructedInterpolants, 0 QuantifiedInterpolants, 15343014 SizeOfPredicates, 1 NumberOfNonLiveVariables, 2696 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 1894/1908 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown