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/Problem04_label09_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 13:18:51,135 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 13:18:51,138 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 13:18:51,155 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 13:18:51,155 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 13:18:51,156 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 13:18:51,158 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 13:18:51,160 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 13:18:51,163 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 13:18:51,163 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 13:18:51,164 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 13:18:51,165 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 13:18:51,166 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 13:18:51,175 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 13:18:51,177 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 13:18:51,177 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 13:18:51,179 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 13:18:51,182 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 13:18:51,187 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 13:18:51,189 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 13:18:51,190 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 13:18:51,195 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 13:18:51,199 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 13:18:51,199 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 13:18:51,200 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 13:18:51,202 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 13:18:51,202 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 13:18:51,204 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 13:18:51,205 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 13:18:51,206 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 13:18:51,206 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 13:18:51,207 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 13:18:51,207 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 13:18:51,207 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 13:18:51,210 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 13:18:51,211 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 13:18:51,211 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 13:18:51,243 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 13:18:51,243 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 13:18:51,244 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 13:18:51,244 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 13:18:51,247 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 13:18:51,247 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 13:18:51,248 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 13:18:51,248 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 13:18:51,248 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 13:18:51,248 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 13:18:51,249 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 13:18:51,249 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 13:18:51,249 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 13:18:51,249 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 13:18:51,249 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 13:18:51,250 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 13:18:51,250 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 13:18:51,250 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 13:18:51,250 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 13:18:51,251 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 13:18:51,255 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 13:18:51,255 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 13:18:51,255 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 13:18:51,256 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 13:18:51,256 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 13:18:51,256 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 13:18:51,256 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 13:18:51,256 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 13:18:51,332 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 13:18:51,350 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 13:18:51,354 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 13:18:51,356 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 13:18:51,356 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 13:18:51,357 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label09_false-unreach-call.c [2018-10-24 13:18:51,417 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/824213eca/310b363e11694a35a9c132c840407057/FLAG8b2c24d76 [2018-10-24 13:18:52,172 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 13:18:52,173 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label09_false-unreach-call.c [2018-10-24 13:18:52,204 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/824213eca/310b363e11694a35a9c132c840407057/FLAG8b2c24d76 [2018-10-24 13:18:52,225 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/824213eca/310b363e11694a35a9c132c840407057 [2018-10-24 13:18:52,239 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 13:18:52,242 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 13:18:52,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 13:18:52,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 13:18:52,249 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 13:18:52,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:18:52" (1/1) ... [2018-10-24 13:18:52,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ee9256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:18:52, skipping insertion in model container [2018-10-24 13:18:52,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:18:52" (1/1) ... [2018-10-24 13:18:52,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 13:18:52,451 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 13:18:54,002 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 13:18:54,007 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 13:18:54,718 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 13:18:54,761 INFO L193 MainTranslator]: Completed translation [2018-10-24 13:18:54,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:18:54 WrapperNode [2018-10-24 13:18:54,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 13:18:54,764 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 13:18:54,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 13:18:54,764 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 13:18:54,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:18:54" (1/1) ... [2018-10-24 13:18:54,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:18:54" (1/1) ... [2018-10-24 13:18:55,389 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 13:18:55,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 13:18:55,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 13:18:55,390 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 13:18:55,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:18:54" (1/1) ... [2018-10-24 13:18:55,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:18:54" (1/1) ... [2018-10-24 13:18:55,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:18:54" (1/1) ... [2018-10-24 13:18:55,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:18:54" (1/1) ... [2018-10-24 13:18:55,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:18:54" (1/1) ... [2018-10-24 13:18:55,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:18:54" (1/1) ... [2018-10-24 13:18:55,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:18:54" (1/1) ... [2018-10-24 13:18:55,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 13:18:55,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 13:18:55,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 13:18:55,616 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 13:18:55,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:18:54" (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 13:18:55,689 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 13:18:55,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 13:18:55,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 13:19:03,817 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 13:19:03,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:19:03 BoogieIcfgContainer [2018-10-24 13:19:03,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 13:19:03,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 13:19:03,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 13:19:03,822 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 13:19:03,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:18:52" (1/3) ... [2018-10-24 13:19:03,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f3e490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:19:03, skipping insertion in model container [2018-10-24 13:19:03,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:18:54" (2/3) ... [2018-10-24 13:19:03,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f3e490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:19:03, skipping insertion in model container [2018-10-24 13:19:03,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:19:03" (3/3) ... [2018-10-24 13:19:03,826 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label09_false-unreach-call.c [2018-10-24 13:19:03,836 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 13:19:03,846 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 13:19:03,863 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 13:19:03,908 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 13:19:03,908 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 13:19:03,909 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 13:19:03,909 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 13:19:03,909 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 13:19:03,909 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 13:19:03,909 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 13:19:03,910 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 13:19:03,910 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 13:19:03,952 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states. [2018-10-24 13:19:04,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 772 [2018-10-24 13:19:04,005 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:19:04,007 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] [2018-10-24 13:19:04,010 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:19:04,016 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:19:04,017 INFO L82 PathProgramCache]: Analyzing trace with hash 637545909, now seen corresponding path program 1 times [2018-10-24 13:19:04,019 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:19:04,020 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:19:04,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:19:04,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:19:04,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:19:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:19:06,522 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 13:19:06,525 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:19:06,526 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 13:19:06,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 13:19:06,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 13:19:06,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 13:19:06,559 INFO L87 Difference]: Start difference. First operand 886 states. Second operand 4 states. [2018-10-24 13:19:18,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:19:18,617 INFO L93 Difference]: Finished difference Result 3414 states and 6666 transitions. [2018-10-24 13:19:18,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 13:19:18,620 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 771 [2018-10-24 13:19:18,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:19:18,686 INFO L225 Difference]: With dead ends: 3414 [2018-10-24 13:19:18,687 INFO L226 Difference]: Without dead ends: 2521 [2018-10-24 13:19:18,702 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 13:19:18,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2521 states. [2018-10-24 13:19:18,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2521 to 2521. [2018-10-24 13:19:18,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2521 states. [2018-10-24 13:19:18,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 4209 transitions. [2018-10-24 13:19:18,896 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 4209 transitions. Word has length 771 [2018-10-24 13:19:18,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:19:18,901 INFO L481 AbstractCegarLoop]: Abstraction has 2521 states and 4209 transitions. [2018-10-24 13:19:18,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 13:19:18,901 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 4209 transitions. [2018-10-24 13:19:18,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 777 [2018-10-24 13:19:18,931 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:19:18,931 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 13:19:18,932 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:19:18,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:19:18,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1571460667, now seen corresponding path program 1 times [2018-10-24 13:19:18,933 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:19:18,934 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:19:18,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:19:18,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:19:18,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:19:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:19:19,657 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 13:19:19,658 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:19:19,658 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 13:19:19,663 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 13:19:19,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 13:19:19,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 13:19:19,663 INFO L87 Difference]: Start difference. First operand 2521 states and 4209 transitions. Second operand 3 states. [2018-10-24 13:19:26,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:19:26,369 INFO L93 Difference]: Finished difference Result 7497 states and 12562 transitions. [2018-10-24 13:19:26,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 13:19:26,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 776 [2018-10-24 13:19:26,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:19:26,397 INFO L225 Difference]: With dead ends: 7497 [2018-10-24 13:19:26,397 INFO L226 Difference]: Without dead ends: 4978 [2018-10-24 13:19:26,403 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 13:19:26,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4978 states. [2018-10-24 13:19:26,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4978 to 4978. [2018-10-24 13:19:26,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4978 states. [2018-10-24 13:19:26,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4978 states to 4978 states and 7530 transitions. [2018-10-24 13:19:26,495 INFO L78 Accepts]: Start accepts. Automaton has 4978 states and 7530 transitions. Word has length 776 [2018-10-24 13:19:26,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:19:26,495 INFO L481 AbstractCegarLoop]: Abstraction has 4978 states and 7530 transitions. [2018-10-24 13:19:26,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 13:19:26,496 INFO L276 IsEmpty]: Start isEmpty. Operand 4978 states and 7530 transitions. [2018-10-24 13:19:26,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 779 [2018-10-24 13:19:26,511 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:19:26,512 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 13:19:26,512 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:19:26,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:19:26,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1578377440, now seen corresponding path program 1 times [2018-10-24 13:19:26,513 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:19:26,513 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:19:26,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:19:26,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:19:26,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:19:26,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:19:27,063 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 13:19:27,063 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:19:27,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 13:19:27,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 13:19:27,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 13:19:27,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 13:19:27,065 INFO L87 Difference]: Start difference. First operand 4978 states and 7530 transitions. Second operand 4 states. [2018-10-24 13:19:35,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:19:35,794 INFO L93 Difference]: Finished difference Result 19782 states and 29992 transitions. [2018-10-24 13:19:35,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 13:19:35,796 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 778 [2018-10-24 13:19:35,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:19:35,862 INFO L225 Difference]: With dead ends: 19782 [2018-10-24 13:19:35,862 INFO L226 Difference]: Without dead ends: 14806 [2018-10-24 13:19:35,870 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 13:19:35,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14806 states. [2018-10-24 13:19:36,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14806 to 14806. [2018-10-24 13:19:36,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14806 states. [2018-10-24 13:19:36,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14806 states to 14806 states and 20136 transitions. [2018-10-24 13:19:36,119 INFO L78 Accepts]: Start accepts. Automaton has 14806 states and 20136 transitions. Word has length 778 [2018-10-24 13:19:36,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:19:36,120 INFO L481 AbstractCegarLoop]: Abstraction has 14806 states and 20136 transitions. [2018-10-24 13:19:36,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 13:19:36,120 INFO L276 IsEmpty]: Start isEmpty. Operand 14806 states and 20136 transitions. [2018-10-24 13:19:36,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 793 [2018-10-24 13:19:36,154 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:19:36,155 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2018-10-24 13:19:36,155 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:19:36,156 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:19:36,156 INFO L82 PathProgramCache]: Analyzing trace with hash -537352163, now seen corresponding path program 1 times [2018-10-24 13:19:36,156 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:19:36,157 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:19:36,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:19:36,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:19:36,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:19:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:19:36,670 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 13:19:36,670 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:19:36,670 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 13:19:36,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 13:19:36,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 13:19:36,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 13:19:36,672 INFO L87 Difference]: Start difference. First operand 14806 states and 20136 transitions. Second operand 3 states. [2018-10-24 13:19:41,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:19:41,882 INFO L93 Difference]: Finished difference Result 36981 states and 51214 transitions. [2018-10-24 13:19:41,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 13:19:41,882 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 792 [2018-10-24 13:19:41,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:19:41,938 INFO L225 Difference]: With dead ends: 36981 [2018-10-24 13:19:41,938 INFO L226 Difference]: Without dead ends: 22177 [2018-10-24 13:19:41,955 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 13:19:41,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22177 states. [2018-10-24 13:19:42,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22177 to 22177. [2018-10-24 13:19:42,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22177 states. [2018-10-24 13:19:42,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22177 states to 22177 states and 28287 transitions. [2018-10-24 13:19:42,277 INFO L78 Accepts]: Start accepts. Automaton has 22177 states and 28287 transitions. Word has length 792 [2018-10-24 13:19:42,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:19:42,277 INFO L481 AbstractCegarLoop]: Abstraction has 22177 states and 28287 transitions. [2018-10-24 13:19:42,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 13:19:42,278 INFO L276 IsEmpty]: Start isEmpty. Operand 22177 states and 28287 transitions. [2018-10-24 13:19:42,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2018-10-24 13:19:42,322 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:19:42,323 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:19:42,323 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:19:42,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:19:42,324 INFO L82 PathProgramCache]: Analyzing trace with hash -22225753, now seen corresponding path program 1 times [2018-10-24 13:19:42,324 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:19:42,324 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:19:42,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:19:42,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:19:42,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:19:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:19:42,794 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 13:19:42,795 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:19:42,795 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 13:19:42,796 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 13:19:42,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 13:19:42,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 13:19:42,797 INFO L87 Difference]: Start difference. First operand 22177 states and 28287 transitions. Second operand 4 states. [2018-10-24 13:19:50,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:19:50,282 INFO L93 Difference]: Finished difference Result 66465 states and 87589 transitions. [2018-10-24 13:19:50,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 13:19:50,283 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 795 [2018-10-24 13:19:50,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:19:50,369 INFO L225 Difference]: With dead ends: 66465 [2018-10-24 13:19:50,369 INFO L226 Difference]: Without dead ends: 44290 [2018-10-24 13:19:50,396 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 13:19:50,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44290 states. [2018-10-24 13:19:50,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44290 to 44290. [2018-10-24 13:19:50,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44290 states. [2018-10-24 13:19:50,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44290 states to 44290 states and 57240 transitions. [2018-10-24 13:19:50,973 INFO L78 Accepts]: Start accepts. Automaton has 44290 states and 57240 transitions. Word has length 795 [2018-10-24 13:19:50,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:19:50,974 INFO L481 AbstractCegarLoop]: Abstraction has 44290 states and 57240 transitions. [2018-10-24 13:19:50,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 13:19:50,974 INFO L276 IsEmpty]: Start isEmpty. Operand 44290 states and 57240 transitions. [2018-10-24 13:19:51,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 800 [2018-10-24 13:19:51,050 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:19:51,051 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2018-10-24 13:19:51,051 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:19:51,052 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:19:51,052 INFO L82 PathProgramCache]: Analyzing trace with hash -919234104, now seen corresponding path program 1 times [2018-10-24 13:19:51,052 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:19:51,052 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:19:51,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:19:51,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:19:51,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:19:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:19:51,540 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 13:19:51,540 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:19:51,540 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 13:19:51,541 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 13:19:51,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 13:19:51,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 13:19:51,542 INFO L87 Difference]: Start difference. First operand 44290 states and 57240 transitions. Second operand 3 states. [2018-10-24 13:19:57,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:19:57,006 INFO L93 Difference]: Finished difference Result 100873 states and 129946 transitions. [2018-10-24 13:19:57,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 13:19:57,018 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 799 [2018-10-24 13:19:57,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:19:57,105 INFO L225 Difference]: With dead ends: 100873 [2018-10-24 13:19:57,105 INFO L226 Difference]: Without dead ends: 56585 [2018-10-24 13:19:57,144 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 13:19:57,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56585 states. [2018-10-24 13:19:57,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56585 to 56585. [2018-10-24 13:19:57,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56585 states. [2018-10-24 13:19:57,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56585 states to 56585 states and 70528 transitions. [2018-10-24 13:19:57,763 INFO L78 Accepts]: Start accepts. Automaton has 56585 states and 70528 transitions. Word has length 799 [2018-10-24 13:19:57,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:19:57,763 INFO L481 AbstractCegarLoop]: Abstraction has 56585 states and 70528 transitions. [2018-10-24 13:19:57,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 13:19:57,764 INFO L276 IsEmpty]: Start isEmpty. Operand 56585 states and 70528 transitions. [2018-10-24 13:19:57,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2018-10-24 13:19:57,808 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:19:57,809 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:19:57,809 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:19:57,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:19:57,810 INFO L82 PathProgramCache]: Analyzing trace with hash -263183508, now seen corresponding path program 1 times [2018-10-24 13:19:57,810 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:19:57,810 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:19:57,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:19:57,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:19:57,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:19:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:19:59,656 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-10-24 13:19:59,656 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:19:59,656 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 13:19:59,657 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 13:19:59,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 13:19:59,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 13:19:59,658 INFO L87 Difference]: Start difference. First operand 56585 states and 70528 transitions. Second operand 4 states. [2018-10-24 13:20:08,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:20:08,133 INFO L93 Difference]: Finished difference Result 171310 states and 215887 transitions. [2018-10-24 13:20:08,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 13:20:08,133 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 801 [2018-10-24 13:20:08,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:20:08,328 INFO L225 Difference]: With dead ends: 171310 [2018-10-24 13:20:08,328 INFO L226 Difference]: Without dead ends: 114727 [2018-10-24 13:20:08,389 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 13:20:08,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114727 states. [2018-10-24 13:20:10,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114727 to 114727. [2018-10-24 13:20:10,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114727 states. [2018-10-24 13:20:10,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114727 states to 114727 states and 135588 transitions. [2018-10-24 13:20:10,216 INFO L78 Accepts]: Start accepts. Automaton has 114727 states and 135588 transitions. Word has length 801 [2018-10-24 13:20:10,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:20:10,217 INFO L481 AbstractCegarLoop]: Abstraction has 114727 states and 135588 transitions. [2018-10-24 13:20:10,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 13:20:10,217 INFO L276 IsEmpty]: Start isEmpty. Operand 114727 states and 135588 transitions. [2018-10-24 13:20:10,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2018-10-24 13:20:10,282 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:20:10,283 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2018-10-24 13:20:10,283 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:20:10,284 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:20:10,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1367325351, now seen corresponding path program 1 times [2018-10-24 13:20:10,284 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:20:10,284 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:20:10,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:20:10,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:20:10,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:20:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:20:10,816 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-10-24 13:20:10,816 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:20:10,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 13:20:10,818 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 13:20:10,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 13:20:10,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 13:20:10,819 INFO L87 Difference]: Start difference. First operand 114727 states and 135588 transitions. Second operand 3 states. [2018-10-24 13:20:17,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:20:17,097 INFO L93 Difference]: Finished difference Result 238461 states and 282086 transitions. [2018-10-24 13:20:17,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 13:20:17,097 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 816 [2018-10-24 13:20:17,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:20:17,258 INFO L225 Difference]: With dead ends: 238461 [2018-10-24 13:20:17,258 INFO L226 Difference]: Without dead ends: 124555 [2018-10-24 13:20:17,329 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 13:20:17,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124555 states. [2018-10-24 13:20:19,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124555 to 124555. [2018-10-24 13:20:19,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124555 states. [2018-10-24 13:20:19,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124555 states to 124555 states and 146460 transitions. [2018-10-24 13:20:19,212 INFO L78 Accepts]: Start accepts. Automaton has 124555 states and 146460 transitions. Word has length 816 [2018-10-24 13:20:19,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:20:19,212 INFO L481 AbstractCegarLoop]: Abstraction has 124555 states and 146460 transitions. [2018-10-24 13:20:19,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 13:20:19,212 INFO L276 IsEmpty]: Start isEmpty. Operand 124555 states and 146460 transitions. [2018-10-24 13:20:19,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 824 [2018-10-24 13:20:19,271 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:20:19,272 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:20:19,272 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:20:19,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:20:19,273 INFO L82 PathProgramCache]: Analyzing trace with hash 192748370, now seen corresponding path program 1 times [2018-10-24 13:20:19,273 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:20:19,273 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:20:19,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:20:19,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:20:19,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:20:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:20:19,839 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 62 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-10-24 13:20:19,840 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 13:20:19,840 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 13:20:19,849 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:20:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:20:20,186 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 13:20:21,387 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-10-24 13:20:21,409 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 13:20:21,409 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-10-24 13:20:21,411 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 13:20:21,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 13:20:21,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 13:20:21,412 INFO L87 Difference]: Start difference. First operand 124555 states and 146460 transitions. Second operand 5 states. [2018-10-24 13:20:34,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:20:34,194 INFO L93 Difference]: Finished difference Result 300704 states and 353332 transitions. [2018-10-24 13:20:34,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 13:20:34,195 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 823 [2018-10-24 13:20:34,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:20:34,373 INFO L225 Difference]: With dead ends: 300704 [2018-10-24 13:20:34,374 INFO L226 Difference]: Without dead ends: 174510 [2018-10-24 13:20:34,415 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 828 GetRequests, 822 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 13:20:34,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174510 states. [2018-10-24 13:20:35,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174510 to 172872. [2018-10-24 13:20:35,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172872 states. [2018-10-24 13:20:35,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172872 states to 172872 states and 187477 transitions. [2018-10-24 13:20:35,793 INFO L78 Accepts]: Start accepts. Automaton has 172872 states and 187477 transitions. Word has length 823 [2018-10-24 13:20:35,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:20:35,794 INFO L481 AbstractCegarLoop]: Abstraction has 172872 states and 187477 transitions. [2018-10-24 13:20:35,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 13:20:35,794 INFO L276 IsEmpty]: Start isEmpty. Operand 172872 states and 187477 transitions. [2018-10-24 13:20:35,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 986 [2018-10-24 13:20:35,848 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:20:35,849 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 13:20:35,849 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:20:35,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:20:35,850 INFO L82 PathProgramCache]: Analyzing trace with hash -2090949623, now seen corresponding path program 1 times [2018-10-24 13:20:35,850 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:20:35,850 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:20:35,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:20:35,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:20:35,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:20:35,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:20:38,223 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2018-10-24 13:20:38,223 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:20:38,224 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 13:20:38,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 13:20:38,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 13:20:38,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 13:20:38,225 INFO L87 Difference]: Start difference. First operand 172872 states and 187477 transitions. Second operand 4 states. [2018-10-24 13:20:46,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:20:46,590 INFO L93 Difference]: Finished difference Result 344923 states and 374121 transitions. [2018-10-24 13:20:46,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 13:20:46,591 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 985 [2018-10-24 13:20:46,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:20:46,746 INFO L225 Difference]: With dead ends: 344923 [2018-10-24 13:20:46,747 INFO L226 Difference]: Without dead ends: 141712 [2018-10-24 13:20:46,815 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 13:20:46,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141712 states. [2018-10-24 13:20:47,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141712 to 141712. [2018-10-24 13:20:47,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141712 states. [2018-10-24 13:20:47,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141712 states to 141712 states and 144483 transitions. [2018-10-24 13:20:47,947 INFO L78 Accepts]: Start accepts. Automaton has 141712 states and 144483 transitions. Word has length 985 [2018-10-24 13:20:47,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:20:47,947 INFO L481 AbstractCegarLoop]: Abstraction has 141712 states and 144483 transitions. [2018-10-24 13:20:47,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 13:20:47,948 INFO L276 IsEmpty]: Start isEmpty. Operand 141712 states and 144483 transitions. [2018-10-24 13:20:48,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1286 [2018-10-24 13:20:48,834 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:20:48,835 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 13:20:48,835 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:20:48,835 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:20:48,836 INFO L82 PathProgramCache]: Analyzing trace with hash -945322339, now seen corresponding path program 1 times [2018-10-24 13:20:48,836 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:20:48,836 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:20:48,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:20:48,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:20:48,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:20:48,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:20:49,468 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-10-24 13:20:54,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 914 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2018-10-24 13:20:54,212 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:20:54,212 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 13:20:54,214 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 13:20:54,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 13:20:54,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 13:20:54,215 INFO L87 Difference]: Start difference. First operand 141712 states and 144483 transitions. Second operand 4 states. [2018-10-24 13:20:58,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:20:58,448 INFO L93 Difference]: Finished difference Result 282603 states and 288138 transitions. [2018-10-24 13:20:58,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 13:20:58,448 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1285 [2018-10-24 13:20:58,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:20:58,589 INFO L225 Difference]: With dead ends: 282603 [2018-10-24 13:20:58,590 INFO L226 Difference]: Without dead ends: 141712 [2018-10-24 13:20:58,649 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 13:20:58,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141712 states. [2018-10-24 13:20:59,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141712 to 138436. [2018-10-24 13:20:59,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138436 states. [2018-10-24 13:20:59,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138436 states to 138436 states and 140755 transitions. [2018-10-24 13:20:59,698 INFO L78 Accepts]: Start accepts. Automaton has 138436 states and 140755 transitions. Word has length 1285 [2018-10-24 13:20:59,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:20:59,699 INFO L481 AbstractCegarLoop]: Abstraction has 138436 states and 140755 transitions. [2018-10-24 13:20:59,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 13:20:59,699 INFO L276 IsEmpty]: Start isEmpty. Operand 138436 states and 140755 transitions. [2018-10-24 13:20:59,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1292 [2018-10-24 13:20:59,744 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:20:59,745 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 13:20:59,745 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:20:59,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:20:59,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1192322508, now seen corresponding path program 1 times [2018-10-24 13:20:59,745 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:20:59,746 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:20:59,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:20:59,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:20:59,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:20:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:21:02,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 514 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2018-10-24 13:21:02,223 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:21:02,224 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 13:21:02,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 13:21:02,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 13:21:02,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 13:21:02,226 INFO L87 Difference]: Start difference. First operand 138436 states and 140755 transitions. Second operand 3 states. [2018-10-24 13:21:05,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:21:05,851 INFO L93 Difference]: Finished difference Result 277689 states and 282333 transitions. [2018-10-24 13:21:05,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 13:21:05,851 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1291 [2018-10-24 13:21:05,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:21:05,985 INFO L225 Difference]: With dead ends: 277689 [2018-10-24 13:21:05,985 INFO L226 Difference]: Without dead ends: 140074 [2018-10-24 13:21:06,035 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 13:21:06,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140074 states. [2018-10-24 13:21:07,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140074 to 138436. [2018-10-24 13:21:07,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138436 states. [2018-10-24 13:21:07,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138436 states to 138436 states and 140713 transitions. [2018-10-24 13:21:07,158 INFO L78 Accepts]: Start accepts. Automaton has 138436 states and 140713 transitions. Word has length 1291 [2018-10-24 13:21:07,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:21:07,158 INFO L481 AbstractCegarLoop]: Abstraction has 138436 states and 140713 transitions. [2018-10-24 13:21:07,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 13:21:07,159 INFO L276 IsEmpty]: Start isEmpty. Operand 138436 states and 140713 transitions. [2018-10-24 13:21:07,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1314 [2018-10-24 13:21:07,205 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:21:07,205 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 13:21:07,206 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:21:07,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:21:07,206 INFO L82 PathProgramCache]: Analyzing trace with hash 120745175, now seen corresponding path program 1 times [2018-10-24 13:21:07,206 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:21:07,206 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:21:07,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:21:07,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:21:07,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:21:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:21:08,047 WARN L179 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-10-24 13:21:09,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1187 backedges. 970 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2018-10-24 13:21:09,285 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:21:09,285 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 13:21:09,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 13:21:09,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 13:21:09,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 13:21:09,287 INFO L87 Difference]: Start difference. First operand 138436 states and 140713 transitions. Second operand 4 states. [2018-10-24 13:21:13,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:21:13,319 INFO L93 Difference]: Finished difference Result 277689 states and 282282 transitions. [2018-10-24 13:21:13,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 13:21:13,319 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1313 [2018-10-24 13:21:13,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:21:13,445 INFO L225 Difference]: With dead ends: 277689 [2018-10-24 13:21:13,446 INFO L226 Difference]: Without dead ends: 139254 [2018-10-24 13:21:13,514 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 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 13:21:13,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139254 states. [2018-10-24 13:21:14,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139254 to 139254. [2018-10-24 13:21:14,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139254 states. [2018-10-24 13:21:14,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139254 states to 139254 states and 141505 transitions. [2018-10-24 13:21:14,828 INFO L78 Accepts]: Start accepts. Automaton has 139254 states and 141505 transitions. Word has length 1313 [2018-10-24 13:21:14,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:21:14,829 INFO L481 AbstractCegarLoop]: Abstraction has 139254 states and 141505 transitions. [2018-10-24 13:21:14,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 13:21:14,829 INFO L276 IsEmpty]: Start isEmpty. Operand 139254 states and 141505 transitions. [2018-10-24 13:21:14,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1315 [2018-10-24 13:21:14,871 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:21:14,872 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 13:21:14,872 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:21:14,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:21:14,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1503845151, now seen corresponding path program 1 times [2018-10-24 13:21:14,873 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:21:14,873 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:21:14,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:21:14,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:21:14,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:21:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:21:16,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1229 backedges. 971 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2018-10-24 13:21:16,540 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:21:16,540 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 13:21:16,541 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 13:21:16,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 13:21:16,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 13:21:16,542 INFO L87 Difference]: Start difference. First operand 139254 states and 141505 transitions. Second operand 4 states. [2018-10-24 13:21:21,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:21:21,558 INFO L93 Difference]: Finished difference Result 277687 states and 282185 transitions. [2018-10-24 13:21:21,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 13:21:21,558 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1314 [2018-10-24 13:21:21,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:21:21,698 INFO L225 Difference]: With dead ends: 277687 [2018-10-24 13:21:21,698 INFO L226 Difference]: Without dead ends: 139254 [2018-10-24 13:21:21,767 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 13:21:21,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139254 states. [2018-10-24 13:21:23,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139254 to 139254. [2018-10-24 13:21:23,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139254 states. [2018-10-24 13:21:23,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139254 states to 139254 states and 141458 transitions. [2018-10-24 13:21:23,109 INFO L78 Accepts]: Start accepts. Automaton has 139254 states and 141458 transitions. Word has length 1314 [2018-10-24 13:21:23,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:21:23,109 INFO L481 AbstractCegarLoop]: Abstraction has 139254 states and 141458 transitions. [2018-10-24 13:21:23,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 13:21:23,109 INFO L276 IsEmpty]: Start isEmpty. Operand 139254 states and 141458 transitions. [2018-10-24 13:21:23,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1422 [2018-10-24 13:21:23,155 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:21:23,156 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 13:21:23,156 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:21:23,156 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:21:23,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1957412578, now seen corresponding path program 1 times [2018-10-24 13:21:23,157 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:21:23,157 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:21:23,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:21:23,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:21:23,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:21:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:21:24,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1245 backedges. 764 proven. 0 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2018-10-24 13:21:24,703 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:21:24,703 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 13:21:24,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 13:21:24,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 13:21:24,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 13:21:24,704 INFO L87 Difference]: Start difference. First operand 139254 states and 141458 transitions. Second operand 4 states. [2018-10-24 13:21:30,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:21:30,346 INFO L93 Difference]: Finished difference Result 285064 states and 289545 transitions. [2018-10-24 13:21:30,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 13:21:30,346 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1421 [2018-10-24 13:21:30,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:21:30,489 INFO L225 Difference]: With dead ends: 285064 [2018-10-24 13:21:30,489 INFO L226 Difference]: Without dead ends: 144171 [2018-10-24 13:21:30,559 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 13:21:30,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144171 states. [2018-10-24 13:21:31,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144171 to 142530. [2018-10-24 13:21:31,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142530 states. [2018-10-24 13:21:31,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142530 states to 142530 states and 144544 transitions. [2018-10-24 13:21:31,724 INFO L78 Accepts]: Start accepts. Automaton has 142530 states and 144544 transitions. Word has length 1421 [2018-10-24 13:21:31,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:21:31,724 INFO L481 AbstractCegarLoop]: Abstraction has 142530 states and 144544 transitions. [2018-10-24 13:21:31,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 13:21:31,724 INFO L276 IsEmpty]: Start isEmpty. Operand 142530 states and 144544 transitions. [2018-10-24 13:21:32,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1478 [2018-10-24 13:21:32,104 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:21:32,105 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-10-24 13:21:32,105 INFO L424 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:21:32,105 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:21:32,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1199747049, now seen corresponding path program 1 times [2018-10-24 13:21:32,106 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:21:32,106 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:21:32,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:21:32,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:21:32,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:21:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:21:35,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1669 backedges. 1107 proven. 263 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2018-10-24 13:21:35,279 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 13:21:35,279 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 13:21:35,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:21:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:21:35,699 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 13:21:37,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1669 backedges. 998 proven. 0 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2018-10-24 13:21:37,932 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 13:21:37,933 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2018-10-24 13:21:37,936 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 13:21:37,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 13:21:37,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-10-24 13:21:37,937 INFO L87 Difference]: Start difference. First operand 142530 states and 144544 transitions. Second operand 8 states. [2018-10-24 13:21:53,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:21:53,248 INFO L93 Difference]: Finished difference Result 276266 states and 280238 transitions. [2018-10-24 13:21:53,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 13:21:53,248 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1477 [2018-10-24 13:21:53,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:21:53,550 INFO L225 Difference]: With dead ends: 276266 [2018-10-24 13:21:53,551 INFO L226 Difference]: Without dead ends: 133733 [2018-10-24 13:21:53,609 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1490 GetRequests, 1480 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2018-10-24 13:21:53,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133733 states. [2018-10-24 13:21:54,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133733 to 126141. [2018-10-24 13:21:54,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126141 states. [2018-10-24 13:21:54,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126141 states to 126141 states and 127345 transitions. [2018-10-24 13:21:54,972 INFO L78 Accepts]: Start accepts. Automaton has 126141 states and 127345 transitions. Word has length 1477 [2018-10-24 13:21:54,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:21:54,973 INFO L481 AbstractCegarLoop]: Abstraction has 126141 states and 127345 transitions. [2018-10-24 13:21:54,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 13:21:54,973 INFO L276 IsEmpty]: Start isEmpty. Operand 126141 states and 127345 transitions. [2018-10-24 13:21:55,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5239 [2018-10-24 13:21:55,276 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:21:55,278 INFO L375 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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] [2018-10-24 13:21:55,278 INFO L424 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:21:55,279 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:21:55,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1824806092, now seen corresponding path program 1 times [2018-10-24 13:21:55,280 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:21:55,280 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:21:55,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:21:55,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:21:55,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:21:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:22:09,511 INFO L134 CoverageAnalysis]: Checked inductivity of 21385 backedges. 9586 proven. 0 refuted. 0 times theorem prover too weak. 11799 trivial. 0 not checked. [2018-10-24 13:22:09,511 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:22:09,511 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 13:22:09,513 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 13:22:09,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 13:22:09,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 13:22:09,514 INFO L87 Difference]: Start difference. First operand 126141 states and 127345 transitions. Second operand 4 states. [2018-10-24 13:22:14,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:22:14,514 INFO L93 Difference]: Finished difference Result 253099 states and 255528 transitions. [2018-10-24 13:22:14,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 13:22:14,515 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5238 [2018-10-24 13:22:14,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:22:14,648 INFO L225 Difference]: With dead ends: 253099 [2018-10-24 13:22:14,649 INFO L226 Difference]: Without dead ends: 127779 [2018-10-24 13:22:14,721 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 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 13:22:14,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127779 states. [2018-10-24 13:22:15,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127779 to 126141. [2018-10-24 13:22:15,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126141 states. [2018-10-24 13:22:15,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126141 states to 126141 states and 127221 transitions. [2018-10-24 13:22:15,772 INFO L78 Accepts]: Start accepts. Automaton has 126141 states and 127221 transitions. Word has length 5238 [2018-10-24 13:22:15,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:22:15,773 INFO L481 AbstractCegarLoop]: Abstraction has 126141 states and 127221 transitions. [2018-10-24 13:22:15,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 13:22:15,774 INFO L276 IsEmpty]: Start isEmpty. Operand 126141 states and 127221 transitions. [2018-10-24 13:22:16,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5429 [2018-10-24 13:22:16,369 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:22:16,371 INFO L375 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-10-24 13:22:16,371 INFO L424 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:22:16,372 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:22:16,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1271232099, now seen corresponding path program 1 times [2018-10-24 13:22:16,373 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:22:16,373 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:22:16,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:22:16,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:22:16,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:22:16,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-10-24 13:22:28,298 INFO L134 CoverageAnalysis]: Checked inductivity of 22131 backedges. 3477 proven. 0 refuted. 0 times theorem prover too weak. 18654 trivial. 0 not checked. [2018-10-24 13:22:28,299 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:22:28,299 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 13:22:28,301 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 13:22:28,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 13:22:28,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 13:22:28,302 INFO L87 Difference]: Start difference. First operand 126141 states and 127221 transitions. Second operand 4 states. [2018-10-24 13:22:28,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-24 13:22:28,303 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 13:22:28,308 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 13:22:28,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 01:22:28 BoogieIcfgContainer [2018-10-24 13:22:28,308 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 13:22:28,309 INFO L168 Benchmark]: Toolchain (without parser) took 216069.50 ms. Allocated memory was 1.5 GB in the beginning and 4.8 GB in the end (delta: 3.3 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-24 13:22:28,310 INFO L168 Benchmark]: CDTParser took 0.23 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 13:22:28,311 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2519.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-10-24 13:22:28,312 INFO L168 Benchmark]: Boogie Procedure Inliner took 625.41 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 770.7 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -993.9 MB). Peak memory consumption was 58.4 MB. Max. memory is 7.1 GB. [2018-10-24 13:22:28,313 INFO L168 Benchmark]: Boogie Preprocessor took 225.56 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2018-10-24 13:22:28,313 INFO L168 Benchmark]: RCFGBuilder took 8202.65 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 234.9 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -178.0 MB). Peak memory consumption was 706.0 MB. Max. memory is 7.1 GB. [2018-10-24 13:22:28,314 INFO L168 Benchmark]: TraceAbstraction took 204489.47 ms. Allocated memory was 2.5 GB in the beginning and 4.8 GB in the end (delta: 2.3 GB). Free memory was 2.3 GB in the beginning and 2.7 GB in the end (delta: -386.5 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-24 13:22:28,319 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 2519.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 625.41 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 770.7 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -993.9 MB). Peak memory consumption was 58.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 225.56 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8202.65 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 234.9 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -178.0 MB). Peak memory consumption was 706.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 204489.47 ms. Allocated memory was 2.5 GB in the beginning and 4.8 GB in the end (delta: 2.3 GB). Free memory was 2.3 GB in the beginning and 2.7 GB in the end (delta: -386.5 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 4667]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 4667). Cancelled while BasicCegarLoop was constructing difference of abstraction (126141states) and FLOYD_HOARE automaton (currently 2 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 886 locations, 1 error locations. TIMEOUT Result, 204.4s OverallTime, 18 OverallIterations, 17 TraceHistogramMax, 127.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12455 SDtfs, 28798 SDslu, 1002 SDs, 0 SdLazy, 68902 SolverSat, 15837 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 94.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2375 GetRequests, 2328 SyntacticMatches, 5 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=172872occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 16.6s AutomataMinimizationTime, 17 MinimizatonAttempts, 17423 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 1.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 14.8s InterpolantComputationTime, 29203 NumberOfCodeBlocks, 29203 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 29183 ConstructedInterpolants, 0 QuantifiedInterpolants, 112440489 SizeOfPredicates, 1 NumberOfNonLiveVariables, 2762 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 20 InterpolantComputations, 18 PerfectInterpolantSequences, 53313/53580 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown