16.18/7.36 YES 16.18/7.36 16.18/7.36 Ultimate: Cannot open display: 16.18/7.36 This is Ultimate 0.1.24-8dc7c08-m 16.18/7.36 [2019-03-29 01:54:31,227 INFO L170 SettingsManager]: Resetting all preferences to default values... 16.18/7.36 [2019-03-29 01:54:31,229 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 16.18/7.36 [2019-03-29 01:54:31,240 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 16.18/7.36 [2019-03-29 01:54:31,241 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 16.18/7.36 [2019-03-29 01:54:31,241 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 16.18/7.36 [2019-03-29 01:54:31,243 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 16.18/7.36 [2019-03-29 01:54:31,244 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 16.18/7.36 [2019-03-29 01:54:31,246 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 16.18/7.36 [2019-03-29 01:54:31,246 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 16.18/7.36 [2019-03-29 01:54:31,247 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 16.18/7.36 [2019-03-29 01:54:31,247 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 16.18/7.36 [2019-03-29 01:54:31,248 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 16.18/7.36 [2019-03-29 01:54:31,249 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 16.18/7.36 [2019-03-29 01:54:31,250 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 16.18/7.36 [2019-03-29 01:54:31,251 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 16.18/7.36 [2019-03-29 01:54:31,252 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 16.18/7.36 [2019-03-29 01:54:31,253 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 16.18/7.36 [2019-03-29 01:54:31,255 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 16.18/7.36 [2019-03-29 01:54:31,256 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 16.18/7.36 [2019-03-29 01:54:31,257 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 16.18/7.36 [2019-03-29 01:54:31,258 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 16.18/7.36 [2019-03-29 01:54:31,260 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 16.18/7.36 [2019-03-29 01:54:31,261 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 16.18/7.36 [2019-03-29 01:54:31,261 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 16.18/7.36 [2019-03-29 01:54:31,262 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 16.18/7.36 [2019-03-29 01:54:31,262 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 16.18/7.36 [2019-03-29 01:54:31,263 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 16.18/7.36 [2019-03-29 01:54:31,263 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 16.18/7.36 [2019-03-29 01:54:31,264 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 16.18/7.36 [2019-03-29 01:54:31,265 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 16.18/7.36 [2019-03-29 01:54:31,265 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 16.18/7.36 [2019-03-29 01:54:31,266 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 16.18/7.36 [2019-03-29 01:54:31,266 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 16.18/7.36 [2019-03-29 01:54:31,267 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 16.18/7.36 [2019-03-29 01:54:31,267 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 16.18/7.36 [2019-03-29 01:54:31,267 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 16.18/7.36 [2019-03-29 01:54:31,268 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 16.18/7.36 [2019-03-29 01:54:31,269 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 16.18/7.36 [2019-03-29 01:54:31,269 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf 16.18/7.36 [2019-03-29 01:54:31,283 INFO L110 SettingsManager]: Loading preferences was successful 16.18/7.36 [2019-03-29 01:54:31,284 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 16.18/7.36 [2019-03-29 01:54:31,285 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 16.18/7.36 [2019-03-29 01:54:31,285 INFO L133 SettingsManager]: * Rewrite not-equals=true 16.18/7.36 [2019-03-29 01:54:31,285 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 16.18/7.36 [2019-03-29 01:54:31,285 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 16.18/7.36 [2019-03-29 01:54:31,286 INFO L133 SettingsManager]: * Use SBE=true 16.18/7.36 [2019-03-29 01:54:31,286 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 16.18/7.36 [2019-03-29 01:54:31,286 INFO L133 SettingsManager]: * Use old map elimination=false 16.18/7.36 [2019-03-29 01:54:31,286 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 16.18/7.36 [2019-03-29 01:54:31,286 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 16.18/7.36 [2019-03-29 01:54:31,286 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 16.18/7.36 [2019-03-29 01:54:31,287 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 16.18/7.36 [2019-03-29 01:54:31,287 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 16.18/7.36 [2019-03-29 01:54:31,287 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.18/7.36 [2019-03-29 01:54:31,287 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 16.18/7.36 [2019-03-29 01:54:31,287 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 16.18/7.36 [2019-03-29 01:54:31,288 INFO L133 SettingsManager]: * Check division by zero=IGNORE 16.18/7.36 [2019-03-29 01:54:31,288 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 16.18/7.36 [2019-03-29 01:54:31,288 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 16.18/7.36 [2019-03-29 01:54:31,288 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 16.18/7.36 [2019-03-29 01:54:31,288 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 16.18/7.36 [2019-03-29 01:54:31,289 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 16.18/7.36 [2019-03-29 01:54:31,289 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 16.18/7.36 [2019-03-29 01:54:31,289 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 16.18/7.36 [2019-03-29 01:54:31,289 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 16.18/7.36 [2019-03-29 01:54:31,289 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 16.18/7.36 [2019-03-29 01:54:31,290 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 16.18/7.36 [2019-03-29 01:54:31,290 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 16.18/7.36 [2019-03-29 01:54:31,315 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 16.18/7.36 [2019-03-29 01:54:31,328 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 16.18/7.36 [2019-03-29 01:54:31,331 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 16.18/7.36 [2019-03-29 01:54:31,333 INFO L271 PluginConnector]: Initializing CDTParser... 16.18/7.36 [2019-03-29 01:54:31,333 INFO L276 PluginConnector]: CDTParser initialized 16.18/7.36 [2019-03-29 01:54:31,334 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c 16.18/7.36 [2019-03-29 01:54:31,395 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/5c5a5b0ef49145d493a673d415adff40/FLAGbb8ebb5b3 16.18/7.36 [2019-03-29 01:54:31,730 INFO L307 CDTParser]: Found 1 translation units. 16.18/7.36 [2019-03-29 01:54:31,730 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c 16.18/7.36 [2019-03-29 01:54:31,737 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/5c5a5b0ef49145d493a673d415adff40/FLAGbb8ebb5b3 16.18/7.36 [2019-03-29 01:54:32,139 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/5c5a5b0ef49145d493a673d415adff40 16.18/7.36 [2019-03-29 01:54:32,151 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 16.18/7.36 [2019-03-29 01:54:32,152 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 16.18/7.36 [2019-03-29 01:54:32,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 16.18/7.36 [2019-03-29 01:54:32,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 16.18/7.36 [2019-03-29 01:54:32,157 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 16.18/7.36 [2019-03-29 01:54:32,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 01:54:32" (1/1) ... 16.18/7.36 [2019-03-29 01:54:32,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a7ee90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:54:32, skipping insertion in model container 16.18/7.36 [2019-03-29 01:54:32,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 01:54:32" (1/1) ... 16.18/7.36 [2019-03-29 01:54:32,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 16.18/7.36 [2019-03-29 01:54:32,186 INFO L176 MainTranslator]: Built tables and reachable declarations 16.18/7.36 [2019-03-29 01:54:32,343 INFO L206 PostProcessor]: Analyzing one entry point: main 16.18/7.36 [2019-03-29 01:54:32,348 INFO L191 MainTranslator]: Completed pre-run 16.18/7.36 [2019-03-29 01:54:32,364 INFO L206 PostProcessor]: Analyzing one entry point: main 16.18/7.36 [2019-03-29 01:54:32,379 INFO L195 MainTranslator]: Completed translation 16.18/7.36 [2019-03-29 01:54:32,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:54:32 WrapperNode 16.18/7.36 [2019-03-29 01:54:32,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 16.18/7.36 [2019-03-29 01:54:32,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 16.18/7.36 [2019-03-29 01:54:32,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 16.18/7.36 [2019-03-29 01:54:32,381 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 16.18/7.36 [2019-03-29 01:54:32,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:54:32" (1/1) ... 16.18/7.36 [2019-03-29 01:54:32,456 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:54:32" (1/1) ... 16.18/7.36 [2019-03-29 01:54:32,476 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 16.18/7.36 [2019-03-29 01:54:32,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 16.18/7.36 [2019-03-29 01:54:32,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 16.18/7.36 [2019-03-29 01:54:32,477 INFO L276 PluginConnector]: Boogie Preprocessor initialized 16.18/7.36 [2019-03-29 01:54:32,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:54:32" (1/1) ... 16.18/7.36 [2019-03-29 01:54:32,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:54:32" (1/1) ... 16.18/7.36 [2019-03-29 01:54:32,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:54:32" (1/1) ... 16.18/7.36 [2019-03-29 01:54:32,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:54:32" (1/1) ... 16.18/7.36 [2019-03-29 01:54:32,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:54:32" (1/1) ... 16.18/7.36 [2019-03-29 01:54:32,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:54:32" (1/1) ... 16.18/7.36 [2019-03-29 01:54:32,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:54:32" (1/1) ... 16.18/7.36 [2019-03-29 01:54:32,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 16.18/7.36 [2019-03-29 01:54:32,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 16.18/7.36 [2019-03-29 01:54:32,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... 16.18/7.36 [2019-03-29 01:54:32,498 INFO L276 PluginConnector]: RCFGBuilder initialized 16.18/7.36 [2019-03-29 01:54:32,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:54:32" (1/1) ... 16.18/7.36 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.18/7.36 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 16.18/7.36 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 16.18/7.36 [2019-03-29 01:54:32,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 16.18/7.36 [2019-03-29 01:54:32,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 16.18/7.36 [2019-03-29 01:54:32,703 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 16.18/7.36 [2019-03-29 01:54:32,703 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. 16.18/7.36 [2019-03-29 01:54:32,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 01:54:32 BoogieIcfgContainer 16.18/7.36 [2019-03-29 01:54:32,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 16.18/7.36 [2019-03-29 01:54:32,705 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 16.18/7.36 [2019-03-29 01:54:32,706 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 16.18/7.36 [2019-03-29 01:54:32,708 INFO L276 PluginConnector]: BlockEncodingV2 initialized 16.18/7.36 [2019-03-29 01:54:32,709 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 01:54:32" (1/1) ... 16.18/7.36 [2019-03-29 01:54:32,725 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges 16.18/7.36 [2019-03-29 01:54:32,727 INFO L258 BlockEncoder]: Using Remove infeasible edges 16.18/7.36 [2019-03-29 01:54:32,728 INFO L263 BlockEncoder]: Using Maximize final states 16.18/7.36 [2019-03-29 01:54:32,728 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 16.18/7.36 [2019-03-29 01:54:32,729 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 16.18/7.36 [2019-03-29 01:54:32,731 INFO L296 BlockEncoder]: Using Remove sink states 16.18/7.36 [2019-03-29 01:54:32,732 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 16.18/7.36 [2019-03-29 01:54:32,732 INFO L179 BlockEncoder]: Using Rewrite not-equals 16.18/7.36 [2019-03-29 01:54:32,749 INFO L185 BlockEncoder]: Using Use SBE 16.18/7.36 [2019-03-29 01:54:32,765 INFO L200 BlockEncoder]: SBE split 1 edges 16.18/7.36 [2019-03-29 01:54:32,770 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility 16.18/7.36 [2019-03-29 01:54:32,772 INFO L71 MaximizeFinalStates]: 0 new accepting states 16.18/7.36 [2019-03-29 01:54:32,786 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding 16.18/7.36 [2019-03-29 01:54:32,788 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states 16.18/7.36 [2019-03-29 01:54:32,789 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 16.18/7.36 [2019-03-29 01:54:32,789 INFO L71 MaximizeFinalStates]: 0 new accepting states 16.18/7.36 [2019-03-29 01:54:32,790 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 16.18/7.36 [2019-03-29 01:54:32,790 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 16.18/7.36 [2019-03-29 01:54:32,790 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges 16.18/7.36 [2019-03-29 01:54:32,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 29.03 01:54:32 BasicIcfg 16.18/7.36 [2019-03-29 01:54:32,791 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 16.18/7.36 [2019-03-29 01:54:32,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 16.18/7.36 [2019-03-29 01:54:32,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... 16.18/7.36 [2019-03-29 01:54:32,795 INFO L276 PluginConnector]: TraceAbstraction initialized 16.18/7.36 [2019-03-29 01:54:32,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.03 01:54:32" (1/4) ... 16.18/7.36 [2019-03-29 01:54:32,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661ea008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 01:54:32, skipping insertion in model container 16.18/7.36 [2019-03-29 01:54:32,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:54:32" (2/4) ... 16.18/7.36 [2019-03-29 01:54:32,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661ea008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 01:54:32, skipping insertion in model container 16.18/7.36 [2019-03-29 01:54:32,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 01:54:32" (3/4) ... 16.18/7.36 [2019-03-29 01:54:32,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661ea008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 01:54:32, skipping insertion in model container 16.18/7.36 [2019-03-29 01:54:32,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 29.03 01:54:32" (4/4) ... 16.18/7.36 [2019-03-29 01:54:32,799 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 16.18/7.36 [2019-03-29 01:54:32,809 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 16.18/7.36 [2019-03-29 01:54:32,816 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. 16.18/7.36 [2019-03-29 01:54:32,837 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. 16.18/7.36 [2019-03-29 01:54:32,867 INFO L133 ementStrategyFactory]: Using default assertion order modulation 16.18/7.36 [2019-03-29 01:54:32,867 INFO L382 AbstractCegarLoop]: Interprodecural is true 16.18/7.36 [2019-03-29 01:54:32,868 INFO L383 AbstractCegarLoop]: Hoare is true 16.18/7.36 [2019-03-29 01:54:32,868 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 16.18/7.36 [2019-03-29 01:54:32,868 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 16.18/7.36 [2019-03-29 01:54:32,868 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 16.18/7.36 [2019-03-29 01:54:32,868 INFO L387 AbstractCegarLoop]: Difference is false 16.18/7.36 [2019-03-29 01:54:32,869 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 16.18/7.36 [2019-03-29 01:54:32,869 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 16.18/7.36 [2019-03-29 01:54:32,883 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. 16.18/7.36 [2019-03-29 01:54:32,888 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. 16.18/7.36 [2019-03-29 01:54:32,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. 16.18/7.36 [2019-03-29 01:54:32,941 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. 16.18/7.36 [2019-03-29 01:54:32,941 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. 16.18/7.36 [2019-03-29 01:54:32,942 INFO L451 ceAbstractionStarter]: At program point L21-2(lines 18 26) the Hoare annotation is: true 16.18/7.36 [2019-03-29 01:54:32,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 01:54:32 BasicIcfg 16.18/7.36 [2019-03-29 01:54:32,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 16.18/7.36 [2019-03-29 01:54:32,951 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 16.18/7.36 [2019-03-29 01:54:32,951 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 16.18/7.36 [2019-03-29 01:54:32,954 INFO L276 PluginConnector]: BuchiAutomizer initialized 16.18/7.36 [2019-03-29 01:54:32,955 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 16.18/7.36 [2019-03-29 01:54:32,955 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.03 01:54:32" (1/5) ... 16.18/7.36 [2019-03-29 01:54:32,956 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e055554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.03 01:54:32, skipping insertion in model container 16.18/7.36 [2019-03-29 01:54:32,956 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 16.18/7.36 [2019-03-29 01:54:32,956 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:54:32" (2/5) ... 16.18/7.36 [2019-03-29 01:54:32,957 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e055554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.03 01:54:32, skipping insertion in model container 16.18/7.36 [2019-03-29 01:54:32,957 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 16.18/7.36 [2019-03-29 01:54:32,957 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 01:54:32" (3/5) ... 16.18/7.36 [2019-03-29 01:54:32,957 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e055554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.03 01:54:32, skipping insertion in model container 16.18/7.36 [2019-03-29 01:54:32,957 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 16.18/7.36 [2019-03-29 01:54:32,958 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 29.03 01:54:32" (4/5) ... 16.18/7.36 [2019-03-29 01:54:32,958 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e055554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.03 01:54:32, skipping insertion in model container 16.18/7.36 [2019-03-29 01:54:32,958 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 16.18/7.36 [2019-03-29 01:54:32,958 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 01:54:32" (5/5) ... 16.18/7.36 [2019-03-29 01:54:32,960 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 16.18/7.36 [2019-03-29 01:54:32,987 INFO L133 ementStrategyFactory]: Using default assertion order modulation 16.18/7.36 [2019-03-29 01:54:32,988 INFO L374 BuchiCegarLoop]: Interprodecural is true 16.18/7.36 [2019-03-29 01:54:32,988 INFO L375 BuchiCegarLoop]: Hoare is true 16.18/7.36 [2019-03-29 01:54:32,988 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates 16.18/7.36 [2019-03-29 01:54:32,989 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE 16.18/7.36 [2019-03-29 01:54:32,989 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION 16.18/7.36 [2019-03-29 01:54:32,989 INFO L379 BuchiCegarLoop]: Difference is false 16.18/7.36 [2019-03-29 01:54:32,989 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA 16.18/7.36 [2019-03-29 01:54:32,989 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== 16.18/7.36 [2019-03-29 01:54:32,993 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. 16.18/7.36 [2019-03-29 01:54:33,011 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 16.18/7.36 [2019-03-29 01:54:33,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 16.18/7.36 [2019-03-29 01:54:33,012 INFO L119 BuchiIsEmpty]: Starting construction of run 16.18/7.36 [2019-03-29 01:54:33,017 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 16.18/7.36 [2019-03-29 01:54:33,017 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 16.18/7.36 [2019-03-29 01:54:33,017 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ 16.18/7.36 [2019-03-29 01:54:33,018 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. 16.18/7.36 [2019-03-29 01:54:33,018 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 16.18/7.36 [2019-03-29 01:54:33,018 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 16.18/7.36 [2019-03-29 01:54:33,018 INFO L119 BuchiIsEmpty]: Starting construction of run 16.18/7.36 [2019-03-29 01:54:33,019 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 16.18/7.36 [2019-03-29 01:54:33,019 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 16.18/7.36 [2019-03-29 01:54:33,024 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [26] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 5#L21-2true 16.18/7.36 [2019-03-29 01:54:33,025 INFO L796 eck$LassoCheckResult]: Loop: 5#L21-2true [35] L21-2-->L21: Formula: (and (= v_ULTIMATE.start_main_~b~0_7 |v_ULTIMATE.start_main_#t~nondet2_3|) (< 0 v_ULTIMATE.start_main_~b~0_8) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 3#L21true [34] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_10 0) (> 0 v_ULTIMATE.start_main_~x~0_9)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 5#L21-2true 16.18/7.36 [2019-03-29 01:54:33,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.18/7.36 [2019-03-29 01:54:33,031 INFO L82 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times 16.18/7.36 [2019-03-29 01:54:33,033 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.18/7.36 [2019-03-29 01:54:33,034 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.18/7.36 [2019-03-29 01:54:33,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.18/7.36 [2019-03-29 01:54:33,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.18/7.36 [2019-03-29 01:54:33,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.18/7.36 [2019-03-29 01:54:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.18/7.36 [2019-03-29 01:54:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.18/7.36 [2019-03-29 01:54:33,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.18/7.36 [2019-03-29 01:54:33,108 INFO L82 PathProgramCache]: Analyzing trace with hash 2080, now seen corresponding path program 1 times 16.18/7.36 [2019-03-29 01:54:33,108 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.18/7.36 [2019-03-29 01:54:33,108 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.18/7.36 [2019-03-29 01:54:33,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.18/7.36 [2019-03-29 01:54:33,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.18/7.36 [2019-03-29 01:54:33,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.18/7.36 [2019-03-29 01:54:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.18/7.36 [2019-03-29 01:54:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.18/7.36 [2019-03-29 01:54:33,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.18/7.36 [2019-03-29 01:54:33,123 INFO L82 PathProgramCache]: Analyzing trace with hash 55896, now seen corresponding path program 1 times 16.18/7.36 [2019-03-29 01:54:33,123 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.18/7.36 [2019-03-29 01:54:33,123 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.18/7.36 [2019-03-29 01:54:33,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.18/7.36 [2019-03-29 01:54:33,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.18/7.36 [2019-03-29 01:54:33,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.18/7.36 [2019-03-29 01:54:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.18/7.36 [2019-03-29 01:54:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.18/7.36 [2019-03-29 01:54:33,191 INFO L216 LassoAnalysis]: Preferences: 16.18/7.36 [2019-03-29 01:54:33,193 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 16.18/7.36 [2019-03-29 01:54:33,193 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 16.18/7.36 [2019-03-29 01:54:33,193 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 16.18/7.36 [2019-03-29 01:54:33,193 INFO L127 ssoRankerPreferences]: Use exernal solver: true 16.18/7.36 [2019-03-29 01:54:33,193 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.18/7.36 [2019-03-29 01:54:33,194 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 16.18/7.36 [2019-03-29 01:54:33,194 INFO L130 ssoRankerPreferences]: Path of dumped script: 16.18/7.36 [2019-03-29 01:54:33,194 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 16.18/7.36 [2019-03-29 01:54:33,194 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 16.18/7.36 [2019-03-29 01:54:33,194 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 16.18/7.36 [2019-03-29 01:54:33,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:33,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:33,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:33,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:33,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:33,344 INFO L300 LassoAnalysis]: Preprocessing complete. 16.18/7.37 [2019-03-29 01:54:33,345 INFO L412 LassoAnalysis]: Checking for nontermination... 16.18/7.37 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.18/7.37 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.18/7.37 Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.18/7.37 [2019-03-29 01:54:33,352 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.18/7.37 [2019-03-29 01:54:33,352 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.18/7.37 [2019-03-29 01:54:33,386 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.18/7.37 [2019-03-29 01:54:33,387 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 16.18/7.37 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.18/7.37 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.18/7.37 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.18/7.37 [2019-03-29 01:54:33,396 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.18/7.37 [2019-03-29 01:54:33,397 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.18/7.37 [2019-03-29 01:54:33,425 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.18/7.37 [2019-03-29 01:54:33,425 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 16.18/7.37 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.18/7.37 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.18/7.37 Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.18/7.37 [2019-03-29 01:54:33,430 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.18/7.37 [2019-03-29 01:54:33,430 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.18/7.37 [2019-03-29 01:54:33,434 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.18/7.37 [2019-03-29 01:54:33,434 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 16.18/7.37 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.18/7.37 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.18/7.37 Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.18/7.37 [2019-03-29 01:54:33,462 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.18/7.37 [2019-03-29 01:54:33,462 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.18/7.37 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.18/7.37 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.18/7.37 Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.18/7.37 [2019-03-29 01:54:33,494 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 16.18/7.37 [2019-03-29 01:54:33,495 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.18/7.37 [2019-03-29 01:54:33,518 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.18/7.37 [2019-03-29 01:54:33,518 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 0, 15] Nus: [0, 0] 16.18/7.37 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.18/7.37 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.18/7.37 Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.18/7.37 [2019-03-29 01:54:33,545 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.18/7.37 [2019-03-29 01:54:33,545 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.18/7.37 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.18/7.37 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.18/7.37 Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.18/7.37 [2019-03-29 01:54:33,576 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 16.18/7.37 [2019-03-29 01:54:33,576 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.18/7.37 [2019-03-29 01:54:33,608 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 16.18/7.37 [2019-03-29 01:54:33,610 INFO L216 LassoAnalysis]: Preferences: 16.18/7.37 [2019-03-29 01:54:33,610 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 16.18/7.37 [2019-03-29 01:54:33,610 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 16.18/7.37 [2019-03-29 01:54:33,611 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 16.18/7.37 [2019-03-29 01:54:33,611 INFO L127 ssoRankerPreferences]: Use exernal solver: false 16.18/7.37 [2019-03-29 01:54:33,611 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 16.18/7.37 [2019-03-29 01:54:33,611 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 16.18/7.37 [2019-03-29 01:54:33,611 INFO L130 ssoRankerPreferences]: Path of dumped script: 16.18/7.37 [2019-03-29 01:54:33,611 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 16.18/7.37 [2019-03-29 01:54:33,611 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 16.18/7.37 [2019-03-29 01:54:33,612 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 16.18/7.37 [2019-03-29 01:54:33,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:33,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:33,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:33,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:33,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:33,697 INFO L300 LassoAnalysis]: Preprocessing complete. 16.18/7.37 [2019-03-29 01:54:33,703 INFO L497 LassoAnalysis]: Using template 'affine'. 16.18/7.37 [2019-03-29 01:54:33,719 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.18/7.37 Termination analysis: LINEAR_WITH_GUESSES 16.18/7.37 Number of strict supporting invariants: 0 16.18/7.37 Number of non-strict supporting invariants: 1 16.18/7.37 Consider only non-deceasing supporting invariants: true 16.18/7.37 Simplify termination arguments: true 16.18/7.37 Simplify supporting invariants: trueOverapproximate stem: false 16.18/7.37 [2019-03-29 01:54:33,720 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.18/7.37 [2019-03-29 01:54:33,721 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.18/7.37 [2019-03-29 01:54:33,721 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.18/7.37 [2019-03-29 01:54:33,721 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.18/7.37 [2019-03-29 01:54:33,726 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 16.18/7.37 [2019-03-29 01:54:33,726 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 16.18/7.37 [2019-03-29 01:54:33,734 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 16.18/7.37 [2019-03-29 01:54:33,735 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.18/7.37 Termination analysis: LINEAR_WITH_GUESSES 16.18/7.37 Number of strict supporting invariants: 0 16.18/7.37 Number of non-strict supporting invariants: 1 16.18/7.37 Consider only non-deceasing supporting invariants: true 16.18/7.37 Simplify termination arguments: true 16.18/7.37 Simplify supporting invariants: trueOverapproximate stem: false 16.18/7.37 [2019-03-29 01:54:33,736 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.18/7.37 [2019-03-29 01:54:33,736 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.18/7.37 [2019-03-29 01:54:33,736 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.18/7.37 [2019-03-29 01:54:33,736 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.18/7.37 [2019-03-29 01:54:33,739 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 16.18/7.37 [2019-03-29 01:54:33,739 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 16.18/7.37 [2019-03-29 01:54:33,747 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 16.18/7.37 [2019-03-29 01:54:33,748 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.18/7.37 Termination analysis: LINEAR_WITH_GUESSES 16.18/7.37 Number of strict supporting invariants: 0 16.18/7.37 Number of non-strict supporting invariants: 1 16.18/7.37 Consider only non-deceasing supporting invariants: true 16.18/7.37 Simplify termination arguments: true 16.18/7.37 Simplify supporting invariants: trueOverapproximate stem: false 16.18/7.37 [2019-03-29 01:54:33,748 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.18/7.37 [2019-03-29 01:54:33,748 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 16.18/7.37 [2019-03-29 01:54:33,749 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.18/7.37 [2019-03-29 01:54:33,749 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.18/7.37 [2019-03-29 01:54:33,749 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.18/7.37 [2019-03-29 01:54:33,750 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 16.18/7.37 [2019-03-29 01:54:33,750 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 16.18/7.37 [2019-03-29 01:54:33,756 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 16.18/7.37 [2019-03-29 01:54:33,756 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.18/7.37 Termination analysis: LINEAR_WITH_GUESSES 16.18/7.37 Number of strict supporting invariants: 0 16.18/7.37 Number of non-strict supporting invariants: 1 16.18/7.37 Consider only non-deceasing supporting invariants: true 16.18/7.37 Simplify termination arguments: true 16.18/7.37 Simplify supporting invariants: trueOverapproximate stem: false 16.18/7.37 [2019-03-29 01:54:33,757 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.18/7.37 [2019-03-29 01:54:33,757 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 16.18/7.37 [2019-03-29 01:54:33,757 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.18/7.37 [2019-03-29 01:54:33,757 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.18/7.37 [2019-03-29 01:54:33,758 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.18/7.37 [2019-03-29 01:54:33,758 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 16.18/7.37 [2019-03-29 01:54:33,758 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 16.18/7.37 [2019-03-29 01:54:33,760 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 16.18/7.37 [2019-03-29 01:54:33,760 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.18/7.37 Termination analysis: LINEAR_WITH_GUESSES 16.18/7.37 Number of strict supporting invariants: 0 16.18/7.37 Number of non-strict supporting invariants: 1 16.18/7.37 Consider only non-deceasing supporting invariants: true 16.18/7.37 Simplify termination arguments: true 16.18/7.37 Simplify supporting invariants: trueOverapproximate stem: false 16.18/7.37 [2019-03-29 01:54:33,761 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.18/7.37 [2019-03-29 01:54:33,761 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 16.18/7.37 [2019-03-29 01:54:33,761 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.18/7.37 [2019-03-29 01:54:33,761 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.18/7.37 [2019-03-29 01:54:33,761 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.18/7.37 [2019-03-29 01:54:33,762 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 16.18/7.37 [2019-03-29 01:54:33,762 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 16.18/7.37 [2019-03-29 01:54:33,769 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 16.18/7.37 [2019-03-29 01:54:33,773 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 16.18/7.37 [2019-03-29 01:54:33,773 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. 16.18/7.37 [2019-03-29 01:54:33,776 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 16.18/7.37 [2019-03-29 01:54:33,776 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 16.18/7.37 [2019-03-29 01:54:33,776 INFO L518 LassoAnalysis]: Proved termination. 16.18/7.37 [2019-03-29 01:54:33,776 INFO L520 LassoAnalysis]: Termination argument consisting of: 16.18/7.37 Ranking function f(ULTIMATE.start_main_~b~0) = 1*ULTIMATE.start_main_~b~0 16.18/7.37 Supporting invariants [] 16.18/7.37 [2019-03-29 01:54:33,778 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 16.18/7.37 [2019-03-29 01:54:33,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.18/7.37 [2019-03-29 01:54:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.18/7.37 [2019-03-29 01:54:33,809 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core 16.18/7.37 [2019-03-29 01:54:33,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... 16.18/7.37 [2019-03-29 01:54:33,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.18/7.37 [2019-03-29 01:54:33,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core 16.18/7.37 [2019-03-29 01:54:33,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... 16.18/7.37 [2019-03-29 01:54:33,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.18/7.37 [2019-03-29 01:54:33,860 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization 16.18/7.37 [2019-03-29 01:54:33,865 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates 16.18/7.37 [2019-03-29 01:54:33,867 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. 16.18/7.37 [2019-03-29 01:54:33,920 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 11 states and 21 transitions. Complement of second has 6 states. 16.18/7.37 [2019-03-29 01:54:33,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states 16.18/7.37 [2019-03-29 01:54:33,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 16.18/7.37 [2019-03-29 01:54:33,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. 16.18/7.37 [2019-03-29 01:54:33,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. 16.18/7.37 [2019-03-29 01:54:33,927 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.18/7.37 [2019-03-29 01:54:33,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. 16.18/7.37 [2019-03-29 01:54:33,927 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.18/7.37 [2019-03-29 01:54:33,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. 16.18/7.37 [2019-03-29 01:54:33,927 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.18/7.37 [2019-03-29 01:54:33,935 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 21 transitions. 16.18/7.37 [2019-03-29 01:54:33,936 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 16.18/7.37 [2019-03-29 01:54:33,941 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 21 transitions. 16.18/7.37 [2019-03-29 01:54:33,942 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 16.18/7.37 [2019-03-29 01:54:33,942 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 16.18/7.37 [2019-03-29 01:54:33,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 21 transitions. 16.18/7.37 [2019-03-29 01:54:33,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 16.18/7.37 [2019-03-29 01:54:33,943 INFO L706 BuchiCegarLoop]: Abstraction has 11 states and 21 transitions. 16.18/7.37 [2019-03-29 01:54:33,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 21 transitions. 16.18/7.37 [2019-03-29 01:54:33,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. 16.18/7.37 [2019-03-29 01:54:33,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. 16.18/7.37 [2019-03-29 01:54:33,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 18 transitions. 16.18/7.37 [2019-03-29 01:54:33,975 INFO L729 BuchiCegarLoop]: Abstraction has 9 states and 18 transitions. 16.18/7.37 [2019-03-29 01:54:33,975 INFO L609 BuchiCegarLoop]: Abstraction has 9 states and 18 transitions. 16.18/7.37 [2019-03-29 01:54:33,975 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ 16.18/7.37 [2019-03-29 01:54:33,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 18 transitions. 16.18/7.37 [2019-03-29 01:54:33,976 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 16.18/7.37 [2019-03-29 01:54:33,976 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 16.18/7.37 [2019-03-29 01:54:33,976 INFO L119 BuchiIsEmpty]: Starting construction of run 16.18/7.37 [2019-03-29 01:54:33,976 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 16.18/7.37 [2019-03-29 01:54:33,977 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 16.18/7.37 [2019-03-29 01:54:33,977 INFO L794 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 56#L21-2 [35] L21-2-->L21: Formula: (and (= v_ULTIMATE.start_main_~b~0_7 |v_ULTIMATE.start_main_#t~nondet2_3|) (< 0 v_ULTIMATE.start_main_~b~0_8) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 50#L21 16.18/7.37 [2019-03-29 01:54:33,977 INFO L796 eck$LassoCheckResult]: Loop: 50#L21 [24] L21-->L21-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~b~0_9 1)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 51#L21-2 [35] L21-2-->L21: Formula: (and (= v_ULTIMATE.start_main_~b~0_7 |v_ULTIMATE.start_main_#t~nondet2_3|) (< 0 v_ULTIMATE.start_main_~b~0_8) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 50#L21 16.18/7.37 [2019-03-29 01:54:33,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.18/7.37 [2019-03-29 01:54:33,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1802, now seen corresponding path program 1 times 16.18/7.37 [2019-03-29 01:54:33,978 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.18/7.37 [2019-03-29 01:54:33,978 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.18/7.37 [2019-03-29 01:54:33,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:33,980 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:33,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:33,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.18/7.37 [2019-03-29 01:54:33,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.18/7.37 [2019-03-29 01:54:33,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.18/7.37 [2019-03-29 01:54:33,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1740, now seen corresponding path program 1 times 16.18/7.37 [2019-03-29 01:54:33,987 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.18/7.37 [2019-03-29 01:54:33,987 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.18/7.37 [2019-03-29 01:54:33,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:33,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:33,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.18/7.37 [2019-03-29 01:54:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.18/7.37 [2019-03-29 01:54:33,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.18/7.37 [2019-03-29 01:54:33,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1732501, now seen corresponding path program 1 times 16.18/7.37 [2019-03-29 01:54:33,995 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.18/7.37 [2019-03-29 01:54:33,996 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.18/7.37 [2019-03-29 01:54:33,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:33,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:33,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.18/7.37 [2019-03-29 01:54:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.18/7.37 [2019-03-29 01:54:34,031 INFO L216 LassoAnalysis]: Preferences: 16.18/7.37 [2019-03-29 01:54:34,031 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 16.18/7.37 [2019-03-29 01:54:34,031 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 16.18/7.37 [2019-03-29 01:54:34,031 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 16.18/7.37 [2019-03-29 01:54:34,031 INFO L127 ssoRankerPreferences]: Use exernal solver: true 16.18/7.37 [2019-03-29 01:54:34,032 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.18/7.37 [2019-03-29 01:54:34,032 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 16.18/7.37 [2019-03-29 01:54:34,032 INFO L130 ssoRankerPreferences]: Path of dumped script: 16.18/7.37 [2019-03-29 01:54:34,032 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 16.18/7.37 [2019-03-29 01:54:34,032 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 16.18/7.37 [2019-03-29 01:54:34,032 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 16.18/7.37 [2019-03-29 01:54:34,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:34,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:34,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:34,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:34,115 INFO L300 LassoAnalysis]: Preprocessing complete. 16.18/7.37 [2019-03-29 01:54:34,115 INFO L412 LassoAnalysis]: Checking for nontermination... 16.18/7.37 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.18/7.37 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.18/7.37 Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.18/7.37 [2019-03-29 01:54:34,120 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.18/7.37 [2019-03-29 01:54:34,120 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.18/7.37 [2019-03-29 01:54:34,148 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.18/7.37 [2019-03-29 01:54:34,148 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 16.18/7.37 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.18/7.37 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.18/7.37 Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.18/7.37 [2019-03-29 01:54:34,153 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.18/7.37 [2019-03-29 01:54:34,153 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.18/7.37 [2019-03-29 01:54:34,159 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.18/7.37 [2019-03-29 01:54:34,160 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~b~0=4, ULTIMATE.start_main_#t~nondet2=4} Honda state: {ULTIMATE.start_main_~b~0=4, ULTIMATE.start_main_#t~nondet2=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] 16.18/7.37 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.18/7.37 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.18/7.37 Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.18/7.37 [2019-03-29 01:54:34,192 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.18/7.37 [2019-03-29 01:54:34,192 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.18/7.37 [2019-03-29 01:54:34,220 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.18/7.37 [2019-03-29 01:54:34,220 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 16.18/7.37 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.18/7.37 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.18/7.37 Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.18/7.37 [2019-03-29 01:54:34,225 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.18/7.37 [2019-03-29 01:54:34,226 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.18/7.37 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.18/7.37 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.18/7.37 Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.18/7.37 [2019-03-29 01:54:34,260 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 16.18/7.37 [2019-03-29 01:54:34,260 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.18/7.37 [2019-03-29 01:54:34,290 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 16.18/7.37 [2019-03-29 01:54:34,292 INFO L216 LassoAnalysis]: Preferences: 16.18/7.37 [2019-03-29 01:54:34,292 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 16.18/7.37 [2019-03-29 01:54:34,292 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 16.18/7.37 [2019-03-29 01:54:34,292 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 16.18/7.37 [2019-03-29 01:54:34,292 INFO L127 ssoRankerPreferences]: Use exernal solver: false 16.18/7.37 [2019-03-29 01:54:34,292 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 16.18/7.37 [2019-03-29 01:54:34,293 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 16.18/7.37 [2019-03-29 01:54:34,293 INFO L130 ssoRankerPreferences]: Path of dumped script: 16.18/7.37 [2019-03-29 01:54:34,293 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 16.18/7.37 [2019-03-29 01:54:34,293 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 16.18/7.37 [2019-03-29 01:54:34,293 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 16.18/7.37 [2019-03-29 01:54:34,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:34,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:34,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:34,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:34,359 INFO L300 LassoAnalysis]: Preprocessing complete. 16.18/7.37 [2019-03-29 01:54:34,359 INFO L497 LassoAnalysis]: Using template 'affine'. 16.18/7.37 [2019-03-29 01:54:34,360 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.18/7.37 Termination analysis: LINEAR_WITH_GUESSES 16.18/7.37 Number of strict supporting invariants: 0 16.18/7.37 Number of non-strict supporting invariants: 1 16.18/7.37 Consider only non-deceasing supporting invariants: true 16.18/7.37 Simplify termination arguments: true 16.18/7.37 Simplify supporting invariants: trueOverapproximate stem: false 16.18/7.37 [2019-03-29 01:54:34,360 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.18/7.37 [2019-03-29 01:54:34,361 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.18/7.37 [2019-03-29 01:54:34,361 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.18/7.37 [2019-03-29 01:54:34,361 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.18/7.37 [2019-03-29 01:54:34,363 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 16.18/7.37 [2019-03-29 01:54:34,364 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 16.18/7.37 [2019-03-29 01:54:34,367 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 16.18/7.37 [2019-03-29 01:54:34,368 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.18/7.37 Termination analysis: LINEAR_WITH_GUESSES 16.18/7.37 Number of strict supporting invariants: 0 16.18/7.37 Number of non-strict supporting invariants: 1 16.18/7.37 Consider only non-deceasing supporting invariants: true 16.18/7.37 Simplify termination arguments: true 16.18/7.37 Simplify supporting invariants: trueOverapproximate stem: false 16.18/7.37 [2019-03-29 01:54:34,368 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.18/7.37 [2019-03-29 01:54:34,368 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 16.18/7.37 [2019-03-29 01:54:34,369 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.18/7.37 [2019-03-29 01:54:34,369 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.18/7.37 [2019-03-29 01:54:34,369 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.18/7.37 [2019-03-29 01:54:34,370 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 16.18/7.37 [2019-03-29 01:54:34,370 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 16.18/7.37 [2019-03-29 01:54:34,374 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 16.18/7.37 [2019-03-29 01:54:34,377 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 16.18/7.37 [2019-03-29 01:54:34,377 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. 16.18/7.37 [2019-03-29 01:54:34,378 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 16.18/7.37 [2019-03-29 01:54:34,378 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 16.18/7.37 [2019-03-29 01:54:34,378 INFO L518 LassoAnalysis]: Proved termination. 16.18/7.37 [2019-03-29 01:54:34,378 INFO L520 LassoAnalysis]: Termination argument consisting of: 16.18/7.37 Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 16.18/7.37 Supporting invariants [] 16.18/7.37 [2019-03-29 01:54:34,379 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 16.18/7.37 [2019-03-29 01:54:34,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.18/7.37 [2019-03-29 01:54:34,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.18/7.37 [2019-03-29 01:54:34,405 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core 16.18/7.37 [2019-03-29 01:54:34,405 INFO L279 TraceCheckSpWp]: Computing forward predicates... 16.18/7.37 [2019-03-29 01:54:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.18/7.37 [2019-03-29 01:54:34,412 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core 16.18/7.37 [2019-03-29 01:54:34,413 INFO L279 TraceCheckSpWp]: Computing forward predicates... 16.18/7.37 [2019-03-29 01:54:34,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.18/7.37 [2019-03-29 01:54:34,436 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization 16.18/7.37 [2019-03-29 01:54:34,437 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates 16.18/7.37 [2019-03-29 01:54:34,437 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 9 states and 18 transitions. cyclomatic complexity: 12 Second operand 3 states. 16.18/7.37 [2019-03-29 01:54:34,471 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 9 states and 18 transitions. cyclomatic complexity: 12. Second operand 3 states. Result 30 states and 58 transitions. Complement of second has 8 states. 16.18/7.37 [2019-03-29 01:54:34,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states 16.18/7.37 [2019-03-29 01:54:34,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 16.18/7.37 [2019-03-29 01:54:34,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. 16.18/7.37 [2019-03-29 01:54:34,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 2 letters. 16.18/7.37 [2019-03-29 01:54:34,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.18/7.37 [2019-03-29 01:54:34,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 2 letters. 16.18/7.37 [2019-03-29 01:54:34,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.18/7.37 [2019-03-29 01:54:34,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 4 letters. 16.18/7.37 [2019-03-29 01:54:34,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.18/7.37 [2019-03-29 01:54:34,476 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 58 transitions. 16.18/7.37 [2019-03-29 01:54:34,479 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 16.18/7.37 [2019-03-29 01:54:34,480 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 21 states and 41 transitions. 16.18/7.37 [2019-03-29 01:54:34,480 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 16.18/7.37 [2019-03-29 01:54:34,480 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 16.18/7.37 [2019-03-29 01:54:34,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 41 transitions. 16.18/7.37 [2019-03-29 01:54:34,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 16.18/7.37 [2019-03-29 01:54:34,481 INFO L706 BuchiCegarLoop]: Abstraction has 21 states and 41 transitions. 16.18/7.37 [2019-03-29 01:54:34,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 41 transitions. 16.18/7.37 [2019-03-29 01:54:34,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. 16.18/7.37 [2019-03-29 01:54:34,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. 16.18/7.37 [2019-03-29 01:54:34,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 36 transitions. 16.18/7.37 [2019-03-29 01:54:34,484 INFO L729 BuchiCegarLoop]: Abstraction has 18 states and 36 transitions. 16.18/7.37 [2019-03-29 01:54:34,484 INFO L609 BuchiCegarLoop]: Abstraction has 18 states and 36 transitions. 16.18/7.37 [2019-03-29 01:54:34,484 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ 16.18/7.37 [2019-03-29 01:54:34,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 36 transitions. 16.18/7.37 [2019-03-29 01:54:34,485 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 16.18/7.37 [2019-03-29 01:54:34,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 16.18/7.37 [2019-03-29 01:54:34,486 INFO L119 BuchiIsEmpty]: Starting construction of run 16.18/7.37 [2019-03-29 01:54:34,486 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 16.18/7.37 [2019-03-29 01:54:34,486 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 16.18/7.37 [2019-03-29 01:54:34,487 INFO L794 eck$LassoCheckResult]: Stem: 132#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 133#L21-2 [36] L21-2-->L21: Formula: (and (= v_ULTIMATE.start_main_~b~0_7 |v_ULTIMATE.start_main_#t~nondet2_3|) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1))) (> 0 v_ULTIMATE.start_main_~b~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 138#L21 16.18/7.37 [2019-03-29 01:54:34,487 INFO L796 eck$LassoCheckResult]: Loop: 138#L21 [34] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_10 0) (> 0 v_ULTIMATE.start_main_~x~0_9)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 139#L21-2 [36] L21-2-->L21: Formula: (and (= v_ULTIMATE.start_main_~b~0_7 |v_ULTIMATE.start_main_#t~nondet2_3|) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1))) (> 0 v_ULTIMATE.start_main_~b~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 138#L21 16.18/7.37 [2019-03-29 01:54:34,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.18/7.37 [2019-03-29 01:54:34,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1803, now seen corresponding path program 1 times 16.18/7.37 [2019-03-29 01:54:34,487 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.18/7.37 [2019-03-29 01:54:34,488 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.18/7.37 [2019-03-29 01:54:34,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:34,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:34,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.18/7.37 [2019-03-29 01:54:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.18/7.37 [2019-03-29 01:54:34,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.18/7.37 [2019-03-29 01:54:34,496 INFO L82 PathProgramCache]: Analyzing trace with hash 2051, now seen corresponding path program 1 times 16.18/7.37 [2019-03-29 01:54:34,496 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.18/7.37 [2019-03-29 01:54:34,496 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.18/7.37 [2019-03-29 01:54:34,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:34,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:34,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.18/7.37 [2019-03-29 01:54:34,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.18/7.37 [2019-03-29 01:54:34,537 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 16.18/7.37 [2019-03-29 01:54:34,538 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 16.18/7.37 [2019-03-29 01:54:34,540 INFO L811 eck$LassoCheckResult]: loop already infeasible 16.18/7.37 [2019-03-29 01:54:34,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. 16.18/7.37 [2019-03-29 01:54:34,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 16.18/7.37 [2019-03-29 01:54:34,544 INFO L87 Difference]: Start difference. First operand 18 states and 36 transitions. cyclomatic complexity: 23 Second operand 3 states. 16.18/7.37 [2019-03-29 01:54:34,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 16.18/7.37 [2019-03-29 01:54:34,572 INFO L93 Difference]: Finished difference Result 17 states and 27 transitions. 16.18/7.37 [2019-03-29 01:54:34,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 16.18/7.37 [2019-03-29 01:54:34,575 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 27 transitions. 16.18/7.37 [2019-03-29 01:54:34,576 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 16.18/7.37 [2019-03-29 01:54:34,578 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 11 states and 17 transitions. 16.18/7.37 [2019-03-29 01:54:34,578 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 16.18/7.37 [2019-03-29 01:54:34,578 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 16.18/7.37 [2019-03-29 01:54:34,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 17 transitions. 16.18/7.37 [2019-03-29 01:54:34,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 16.18/7.37 [2019-03-29 01:54:34,579 INFO L706 BuchiCegarLoop]: Abstraction has 11 states and 17 transitions. 16.18/7.37 [2019-03-29 01:54:34,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 17 transitions. 16.18/7.37 [2019-03-29 01:54:34,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. 16.18/7.37 [2019-03-29 01:54:34,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. 16.18/7.37 [2019-03-29 01:54:34,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 17 transitions. 16.18/7.37 [2019-03-29 01:54:34,580 INFO L729 BuchiCegarLoop]: Abstraction has 11 states and 17 transitions. 16.18/7.37 [2019-03-29 01:54:34,581 INFO L609 BuchiCegarLoop]: Abstraction has 11 states and 17 transitions. 16.18/7.37 [2019-03-29 01:54:34,581 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ 16.18/7.37 [2019-03-29 01:54:34,581 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 17 transitions. 16.18/7.37 [2019-03-29 01:54:34,581 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 16.18/7.37 [2019-03-29 01:54:34,582 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 16.18/7.37 [2019-03-29 01:54:34,582 INFO L119 BuchiIsEmpty]: Starting construction of run 16.18/7.37 [2019-03-29 01:54:34,582 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] 16.18/7.37 [2019-03-29 01:54:34,582 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 16.18/7.37 [2019-03-29 01:54:34,583 INFO L794 eck$LassoCheckResult]: Stem: 173#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 174#L21-2 [36] L21-2-->L21: Formula: (and (= v_ULTIMATE.start_main_~b~0_7 |v_ULTIMATE.start_main_#t~nondet2_3|) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1))) (> 0 v_ULTIMATE.start_main_~b~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 175#L21 [24] L21-->L21-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~b~0_9 1)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 177#L21-2 [35] L21-2-->L21: Formula: (and (= v_ULTIMATE.start_main_~b~0_7 |v_ULTIMATE.start_main_#t~nondet2_3|) (< 0 v_ULTIMATE.start_main_~b~0_8) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 176#L21 [34] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_10 0) (> 0 v_ULTIMATE.start_main_~x~0_9)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 169#L21-2 16.18/7.37 [2019-03-29 01:54:34,583 INFO L796 eck$LassoCheckResult]: Loop: 169#L21-2 [35] L21-2-->L21: Formula: (and (= v_ULTIMATE.start_main_~b~0_7 |v_ULTIMATE.start_main_#t~nondet2_3|) (< 0 v_ULTIMATE.start_main_~b~0_8) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 168#L21 [34] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_10 0) (> 0 v_ULTIMATE.start_main_~x~0_9)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 169#L21-2 16.18/7.37 [2019-03-29 01:54:34,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.18/7.37 [2019-03-29 01:54:34,583 INFO L82 PathProgramCache]: Analyzing trace with hash 53737356, now seen corresponding path program 1 times 16.18/7.37 [2019-03-29 01:54:34,584 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.18/7.37 [2019-03-29 01:54:34,584 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.18/7.37 [2019-03-29 01:54:34,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:34,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:34,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:34,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.18/7.37 [2019-03-29 01:54:34,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.18/7.37 [2019-03-29 01:54:34,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.18/7.37 [2019-03-29 01:54:34,596 INFO L82 PathProgramCache]: Analyzing trace with hash 2080, now seen corresponding path program 2 times 16.18/7.37 [2019-03-29 01:54:34,596 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.18/7.37 [2019-03-29 01:54:34,596 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.18/7.37 [2019-03-29 01:54:34,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:34,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:34,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.18/7.37 [2019-03-29 01:54:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.18/7.37 [2019-03-29 01:54:34,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.18/7.37 [2019-03-29 01:54:34,603 INFO L82 PathProgramCache]: Analyzing trace with hash 101992683, now seen corresponding path program 2 times 16.18/7.37 [2019-03-29 01:54:34,604 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.18/7.37 [2019-03-29 01:54:34,604 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.18/7.37 [2019-03-29 01:54:34,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:34,605 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:34,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.18/7.37 [2019-03-29 01:54:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.18/7.37 [2019-03-29 01:54:34,620 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. 16.18/7.37 [2019-03-29 01:54:34,621 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 16.18/7.37 [2019-03-29 01:54:34,621 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 16.18/7.37 [2019-03-29 01:54:34,645 INFO L216 LassoAnalysis]: Preferences: 16.18/7.37 [2019-03-29 01:54:34,645 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 16.18/7.37 [2019-03-29 01:54:34,645 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 16.18/7.37 [2019-03-29 01:54:34,646 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 16.18/7.37 [2019-03-29 01:54:34,646 INFO L127 ssoRankerPreferences]: Use exernal solver: true 16.18/7.37 [2019-03-29 01:54:34,646 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.18/7.37 [2019-03-29 01:54:34,646 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 16.18/7.37 [2019-03-29 01:54:34,646 INFO L130 ssoRankerPreferences]: Path of dumped script: 16.18/7.37 [2019-03-29 01:54:34,646 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop 16.18/7.37 [2019-03-29 01:54:34,646 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 16.18/7.37 [2019-03-29 01:54:34,646 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 16.18/7.37 [2019-03-29 01:54:34,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:34,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:34,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:34,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:34,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:34,731 INFO L300 LassoAnalysis]: Preprocessing complete. 16.18/7.37 [2019-03-29 01:54:34,732 INFO L412 LassoAnalysis]: Checking for nontermination... 16.18/7.37 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.18/7.37 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.18/7.37 Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.18/7.37 [2019-03-29 01:54:34,735 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.18/7.37 [2019-03-29 01:54:34,735 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.18/7.37 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.18/7.37 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.18/7.37 Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.18/7.37 [2019-03-29 01:54:34,769 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 16.18/7.37 [2019-03-29 01:54:34,770 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.18/7.37 [2019-03-29 01:54:34,791 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.18/7.37 [2019-03-29 01:54:34,792 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 0, 15] Nus: [0, 0] 16.18/7.37 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.18/7.37 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.18/7.37 Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.18/7.37 [2019-03-29 01:54:34,818 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.18/7.37 [2019-03-29 01:54:34,819 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.18/7.37 [2019-03-29 01:54:34,822 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.18/7.37 [2019-03-29 01:54:34,822 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 16.18/7.37 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.18/7.37 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.18/7.37 Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.18/7.37 [2019-03-29 01:54:34,849 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.18/7.37 [2019-03-29 01:54:34,850 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.18/7.37 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.18/7.37 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.18/7.37 Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.18/7.37 [2019-03-29 01:54:34,880 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 16.18/7.37 [2019-03-29 01:54:34,880 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.18/7.37 [2019-03-29 01:54:34,912 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 16.18/7.37 [2019-03-29 01:54:34,913 INFO L216 LassoAnalysis]: Preferences: 16.18/7.37 [2019-03-29 01:54:34,914 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 16.18/7.37 [2019-03-29 01:54:34,914 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 16.18/7.37 [2019-03-29 01:54:34,914 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 16.18/7.37 [2019-03-29 01:54:34,914 INFO L127 ssoRankerPreferences]: Use exernal solver: false 16.18/7.37 [2019-03-29 01:54:34,914 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 16.18/7.37 [2019-03-29 01:54:34,914 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 16.18/7.37 [2019-03-29 01:54:34,915 INFO L130 ssoRankerPreferences]: Path of dumped script: 16.18/7.37 [2019-03-29 01:54:34,915 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop 16.18/7.37 [2019-03-29 01:54:34,915 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 16.18/7.37 [2019-03-29 01:54:34,915 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 16.18/7.37 [2019-03-29 01:54:34,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:34,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:34,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:34,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:34,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.18/7.37 [2019-03-29 01:54:34,992 INFO L300 LassoAnalysis]: Preprocessing complete. 16.18/7.37 [2019-03-29 01:54:34,993 INFO L497 LassoAnalysis]: Using template 'affine'. 16.18/7.37 [2019-03-29 01:54:34,993 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.18/7.37 Termination analysis: LINEAR_WITH_GUESSES 16.18/7.37 Number of strict supporting invariants: 0 16.18/7.37 Number of non-strict supporting invariants: 1 16.18/7.37 Consider only non-deceasing supporting invariants: true 16.18/7.37 Simplify termination arguments: true 16.18/7.37 Simplify supporting invariants: trueOverapproximate stem: false 16.18/7.37 [2019-03-29 01:54:34,994 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.18/7.37 [2019-03-29 01:54:34,994 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 16.18/7.37 [2019-03-29 01:54:34,994 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.18/7.37 [2019-03-29 01:54:34,994 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.18/7.37 [2019-03-29 01:54:34,994 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.18/7.37 [2019-03-29 01:54:34,995 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 16.18/7.37 [2019-03-29 01:54:34,995 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 16.18/7.37 [2019-03-29 01:54:34,996 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 16.18/7.37 [2019-03-29 01:54:34,996 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.18/7.37 Termination analysis: LINEAR_WITH_GUESSES 16.18/7.37 Number of strict supporting invariants: 0 16.18/7.37 Number of non-strict supporting invariants: 1 16.18/7.37 Consider only non-deceasing supporting invariants: true 16.18/7.37 Simplify termination arguments: true 16.18/7.37 Simplify supporting invariants: trueOverapproximate stem: false 16.18/7.37 [2019-03-29 01:54:34,997 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.18/7.37 [2019-03-29 01:54:34,997 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 16.18/7.37 [2019-03-29 01:54:34,997 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.18/7.37 [2019-03-29 01:54:34,997 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.18/7.37 [2019-03-29 01:54:34,998 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.18/7.37 [2019-03-29 01:54:34,998 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 16.18/7.37 [2019-03-29 01:54:34,998 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 16.18/7.37 [2019-03-29 01:54:35,002 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 16.18/7.37 [2019-03-29 01:54:35,002 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.18/7.37 Termination analysis: LINEAR_WITH_GUESSES 16.18/7.37 Number of strict supporting invariants: 0 16.18/7.37 Number of non-strict supporting invariants: 1 16.18/7.37 Consider only non-deceasing supporting invariants: true 16.18/7.37 Simplify termination arguments: true 16.18/7.37 Simplify supporting invariants: trueOverapproximate stem: false 16.18/7.37 [2019-03-29 01:54:35,003 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.18/7.37 [2019-03-29 01:54:35,003 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 16.18/7.37 [2019-03-29 01:54:35,003 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.18/7.37 [2019-03-29 01:54:35,003 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.18/7.37 [2019-03-29 01:54:35,003 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.18/7.37 [2019-03-29 01:54:35,004 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 16.18/7.37 [2019-03-29 01:54:35,004 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 16.18/7.37 [2019-03-29 01:54:35,007 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 16.18/7.37 [2019-03-29 01:54:35,010 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 16.18/7.37 [2019-03-29 01:54:35,010 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. 16.18/7.37 [2019-03-29 01:54:35,010 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 16.18/7.37 [2019-03-29 01:54:35,010 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 16.18/7.37 [2019-03-29 01:54:35,011 INFO L518 LassoAnalysis]: Proved termination. 16.18/7.37 [2019-03-29 01:54:35,011 INFO L520 LassoAnalysis]: Termination argument consisting of: 16.18/7.37 Ranking function f(ULTIMATE.start_main_~b~0) = 1*ULTIMATE.start_main_~b~0 16.18/7.37 Supporting invariants [] 16.18/7.37 [2019-03-29 01:54:35,011 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 16.18/7.37 [2019-03-29 01:54:35,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.18/7.37 [2019-03-29 01:54:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.18/7.37 [2019-03-29 01:54:35,058 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core 16.18/7.37 [2019-03-29 01:54:35,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... 16.18/7.37 [2019-03-29 01:54:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.18/7.37 [2019-03-29 01:54:35,070 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core 16.18/7.37 [2019-03-29 01:54:35,070 INFO L279 TraceCheckSpWp]: Computing forward predicates... 16.18/7.37 [2019-03-29 01:54:35,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.18/7.37 [2019-03-29 01:54:35,079 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization 16.18/7.37 [2019-03-29 01:54:35,080 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates 16.18/7.37 [2019-03-29 01:54:35,080 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 11 states and 17 transitions. cyclomatic complexity: 8 Second operand 3 states. 16.18/7.37 [2019-03-29 01:54:35,105 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 11 states and 17 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 26 states and 43 transitions. Complement of second has 6 states. 16.18/7.37 [2019-03-29 01:54:35,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states 16.18/7.37 [2019-03-29 01:54:35,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 16.18/7.37 [2019-03-29 01:54:35,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. 16.18/7.37 [2019-03-29 01:54:35,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 2 letters. 16.18/7.37 [2019-03-29 01:54:35,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.18/7.37 [2019-03-29 01:54:35,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 7 letters. Loop has 2 letters. 16.18/7.37 [2019-03-29 01:54:35,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.18/7.37 [2019-03-29 01:54:35,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 4 letters. 16.18/7.37 [2019-03-29 01:54:35,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.18/7.37 [2019-03-29 01:54:35,108 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 43 transitions. 16.18/7.37 [2019-03-29 01:54:35,110 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 16.18/7.37 [2019-03-29 01:54:35,110 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. 16.18/7.37 [2019-03-29 01:54:35,110 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 16.18/7.37 [2019-03-29 01:54:35,110 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 16.18/7.37 [2019-03-29 01:54:35,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. 16.18/7.37 [2019-03-29 01:54:35,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 16.18/7.37 [2019-03-29 01:54:35,110 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 16.18/7.37 [2019-03-29 01:54:35,111 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 16.18/7.37 [2019-03-29 01:54:35,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. 16.18/7.37 [2019-03-29 01:54:35,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 16.18/7.37 [2019-03-29 01:54:35,111 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. 16.18/7.37 [2019-03-29 01:54:35,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 16.18/7.37 [2019-03-29 01:54:35,111 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. 16.18/7.37 [2019-03-29 01:54:35,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 16.18/7.37 [2019-03-29 01:54:35,112 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. 16.18/7.37 [2019-03-29 01:54:35,112 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 16.18/7.37 [2019-03-29 01:54:35,113 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. 16.18/7.37 [2019-03-29 01:54:35,113 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 16.18/7.37 [2019-03-29 01:54:35,113 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 16.18/7.37 [2019-03-29 01:54:35,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. 16.18/7.37 [2019-03-29 01:54:35,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 16.18/7.37 [2019-03-29 01:54:35,113 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 16.18/7.37 [2019-03-29 01:54:35,113 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 16.18/7.37 [2019-03-29 01:54:35,113 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 16.18/7.37 [2019-03-29 01:54:35,113 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ 16.18/7.37 [2019-03-29 01:54:35,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. 16.18/7.37 [2019-03-29 01:54:35,114 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 16.18/7.37 [2019-03-29 01:54:35,114 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true 16.18/7.37 [2019-03-29 01:54:35,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.03 01:54:35 BasicIcfg 16.18/7.37 [2019-03-29 01:54:35,120 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 16.18/7.37 [2019-03-29 01:54:35,120 INFO L168 Benchmark]: Toolchain (without parser) took 2969.17 ms. Allocated memory was 649.6 MB in the beginning and 757.6 MB in the end (delta: 108.0 MB). Free memory was 558.5 MB in the beginning and 702.3 MB in the end (delta: -143.8 MB). There was no memory consumed. Max. memory is 50.3 GB. 16.18/7.37 [2019-03-29 01:54:35,122 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 580.0 MB. There was no memory consumed. Max. memory is 50.3 GB. 16.18/7.37 [2019-03-29 01:54:35,122 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.89 ms. Allocated memory is still 649.6 MB. Free memory was 558.5 MB in the beginning and 547.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 50.3 GB. 16.18/7.37 [2019-03-29 01:54:35,123 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.18 ms. Allocated memory was 649.6 MB in the beginning and 687.9 MB in the end (delta: 38.3 MB). Free memory was 547.9 MB in the beginning and 654.2 MB in the end (delta: -106.3 MB). Peak memory consumption was 20.2 MB. Max. memory is 50.3 GB. 16.18/7.37 [2019-03-29 01:54:35,124 INFO L168 Benchmark]: Boogie Preprocessor took 20.72 ms. Allocated memory is still 687.9 MB. Free memory is still 654.2 MB. There was no memory consumed. Max. memory is 50.3 GB. 16.18/7.37 [2019-03-29 01:54:35,124 INFO L168 Benchmark]: RCFGBuilder took 206.78 ms. Allocated memory is still 687.9 MB. Free memory was 654.2 MB in the beginning and 639.9 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. 16.18/7.37 [2019-03-29 01:54:35,125 INFO L168 Benchmark]: BlockEncodingV2 took 85.45 ms. Allocated memory is still 687.9 MB. Free memory was 639.9 MB in the beginning and 634.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 16.18/7.37 [2019-03-29 01:54:35,125 INFO L168 Benchmark]: TraceAbstraction took 158.28 ms. Allocated memory is still 687.9 MB. Free memory was 633.2 MB in the beginning and 625.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. 16.18/7.37 [2019-03-29 01:54:35,126 INFO L168 Benchmark]: BuchiAutomizer took 2169.42 ms. Allocated memory was 687.9 MB in the beginning and 757.6 MB in the end (delta: 69.7 MB). Free memory was 625.1 MB in the beginning and 702.3 MB in the end (delta: -77.2 MB). There was no memory consumed. Max. memory is 50.3 GB. 16.18/7.37 [2019-03-29 01:54:35,130 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 16.18/7.37 --- Results --- 16.18/7.37 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 16.18/7.37 - StatisticsResult: Initial Icfg 16.18/7.37 7 locations, 9 edges 16.18/7.37 - StatisticsResult: Encoded RCFG 16.18/7.37 3 locations, 5 edges 16.18/7.37 * Results from de.uni_freiburg.informatik.ultimate.core: 16.18/7.37 - StatisticsResult: Toolchain Benchmarks 16.18/7.37 Benchmark results are: 16.18/7.37 * CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 580.0 MB. There was no memory consumed. Max. memory is 50.3 GB. 16.18/7.37 * CACSL2BoogieTranslator took 226.89 ms. Allocated memory is still 649.6 MB. Free memory was 558.5 MB in the beginning and 547.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 50.3 GB. 16.18/7.37 * Boogie Procedure Inliner took 96.18 ms. Allocated memory was 649.6 MB in the beginning and 687.9 MB in the end (delta: 38.3 MB). Free memory was 547.9 MB in the beginning and 654.2 MB in the end (delta: -106.3 MB). Peak memory consumption was 20.2 MB. Max. memory is 50.3 GB. 16.18/7.37 * Boogie Preprocessor took 20.72 ms. Allocated memory is still 687.9 MB. Free memory is still 654.2 MB. There was no memory consumed. Max. memory is 50.3 GB. 16.18/7.37 * RCFGBuilder took 206.78 ms. Allocated memory is still 687.9 MB. Free memory was 654.2 MB in the beginning and 639.9 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. 16.18/7.37 * BlockEncodingV2 took 85.45 ms. Allocated memory is still 687.9 MB. Free memory was 639.9 MB in the beginning and 634.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 16.18/7.37 * TraceAbstraction took 158.28 ms. Allocated memory is still 687.9 MB. Free memory was 633.2 MB in the beginning and 625.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. 16.18/7.37 * BuchiAutomizer took 2169.42 ms. Allocated memory was 687.9 MB in the beginning and 757.6 MB in the end (delta: 69.7 MB). Free memory was 625.1 MB in the beginning and 702.3 MB in the end (delta: -77.2 MB). There was no memory consumed. Max. memory is 50.3 GB. 16.18/7.37 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 16.18/7.37 - AllSpecificationsHoldResult: All specifications hold 16.18/7.37 We were not able to verify any specifiation because the program does not contain any specification. 16.18/7.37 - InvariantResult [Line: 18]: Loop Invariant 16.18/7.37 Derived loop invariant: 1 16.18/7.37 - StatisticsResult: Ultimate Automizer benchmark data 16.18/7.37 CFG has 1 procedures, 3 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, 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: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available 16.18/7.37 - StatisticsResult: Constructed decomposition of program 16.18/7.37 Your program was decomposed into 5 terminating modules (2 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function b and consists of 4 locations. One nondeterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. One nondeterministic module has affine ranking function b and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. 16.18/7.37 - StatisticsResult: Timing statistics 16.18/7.37 BüchiAutomizer plugin needed 2.1s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 19 SDslu, 0 SDs, 0 SdLazy, 52 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax180 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s 16.18/7.37 - TerminationAnalysisResult: Termination proven 16.18/7.37 Buchi Automizer proved that your program is terminating 16.18/7.37 RESULT: Ultimate proved your program to be correct! 16.18/7.37 !SESSION 2019-03-29 01:54:28.917 ----------------------------------------------- 16.18/7.37 eclipse.buildId=unknown 16.18/7.37 java.version=1.8.0_181 16.18/7.37 java.vendor=Oracle Corporation 16.18/7.37 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 16.18/7.37 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c 16.18/7.37 Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c 16.18/7.37 16.18/7.37 !ENTRY org.eclipse.core.resources 2 10035 2019-03-29 01:54:35.362 16.18/7.37 !MESSAGE The workspace will exit with unsaved changes in this session. 16.18/7.37 Received shutdown request... 16.18/7.37 Ultimate: 16.18/7.37 GTK+ Version Check 16.18/7.37 EOF