19.12/9.92 YES 19.12/9.92 19.12/9.92 Ultimate: Cannot open display: 19.12/9.92 This is Ultimate 0.1.24-8dc7c08-m 19.12/9.92 [2019-03-28 22:37:17,219 INFO L170 SettingsManager]: Resetting all preferences to default values... 19.12/9.92 [2019-03-28 22:37:17,221 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 19.12/9.92 [2019-03-28 22:37:17,233 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 19.12/9.92 [2019-03-28 22:37:17,233 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 19.12/9.92 [2019-03-28 22:37:17,234 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 19.12/9.92 [2019-03-28 22:37:17,235 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 19.12/9.92 [2019-03-28 22:37:17,237 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 19.12/9.92 [2019-03-28 22:37:17,238 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 19.12/9.92 [2019-03-28 22:37:17,239 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 19.12/9.92 [2019-03-28 22:37:17,240 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 19.12/9.92 [2019-03-28 22:37:17,240 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 19.12/9.92 [2019-03-28 22:37:17,241 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 19.12/9.92 [2019-03-28 22:37:17,242 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 19.12/9.92 [2019-03-28 22:37:17,243 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 19.12/9.92 [2019-03-28 22:37:17,244 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 19.12/9.92 [2019-03-28 22:37:17,244 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 19.12/9.92 [2019-03-28 22:37:17,246 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 19.12/9.92 [2019-03-28 22:37:17,248 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 19.12/9.92 [2019-03-28 22:37:17,249 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 19.12/9.92 [2019-03-28 22:37:17,251 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 19.12/9.92 [2019-03-28 22:37:17,252 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 19.12/9.92 [2019-03-28 22:37:17,254 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 19.12/9.92 [2019-03-28 22:37:17,254 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 19.12/9.92 [2019-03-28 22:37:17,254 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 19.12/9.92 [2019-03-28 22:37:17,255 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 19.12/9.92 [2019-03-28 22:37:17,255 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 19.12/9.92 [2019-03-28 22:37:17,256 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 19.12/9.92 [2019-03-28 22:37:17,256 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 19.12/9.92 [2019-03-28 22:37:17,257 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 19.12/9.92 [2019-03-28 22:37:17,258 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 19.12/9.92 [2019-03-28 22:37:17,259 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 19.12/9.92 [2019-03-28 22:37:17,260 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 19.12/9.92 [2019-03-28 22:37:17,260 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 19.12/9.92 [2019-03-28 22:37:17,261 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 19.12/9.92 [2019-03-28 22:37:17,261 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 19.12/9.92 [2019-03-28 22:37:17,261 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 19.12/9.92 [2019-03-28 22:37:17,262 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 19.12/9.92 [2019-03-28 22:37:17,263 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 19.12/9.92 [2019-03-28 22:37:17,263 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf 19.12/9.92 [2019-03-28 22:37:17,277 INFO L110 SettingsManager]: Loading preferences was successful 19.12/9.92 [2019-03-28 22:37:17,278 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 19.12/9.92 [2019-03-28 22:37:17,279 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 19.12/9.92 [2019-03-28 22:37:17,279 INFO L133 SettingsManager]: * Rewrite not-equals=true 19.12/9.92 [2019-03-28 22:37:17,279 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 19.12/9.92 [2019-03-28 22:37:17,279 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 19.12/9.92 [2019-03-28 22:37:17,279 INFO L133 SettingsManager]: * Use SBE=true 19.12/9.92 [2019-03-28 22:37:17,280 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 19.12/9.92 [2019-03-28 22:37:17,280 INFO L133 SettingsManager]: * Use old map elimination=false 19.12/9.92 [2019-03-28 22:37:17,280 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 19.12/9.92 [2019-03-28 22:37:17,280 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 19.12/9.92 [2019-03-28 22:37:17,280 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 19.12/9.92 [2019-03-28 22:37:17,280 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 19.12/9.92 [2019-03-28 22:37:17,281 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 19.12/9.92 [2019-03-28 22:37:17,281 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.92 [2019-03-28 22:37:17,281 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 19.12/9.92 [2019-03-28 22:37:17,281 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 19.12/9.92 [2019-03-28 22:37:17,281 INFO L133 SettingsManager]: * Check division by zero=IGNORE 19.12/9.92 [2019-03-28 22:37:17,282 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 19.12/9.92 [2019-03-28 22:37:17,282 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 19.12/9.92 [2019-03-28 22:37:17,282 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 19.12/9.92 [2019-03-28 22:37:17,282 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 19.12/9.92 [2019-03-28 22:37:17,282 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 19.12/9.92 [2019-03-28 22:37:17,282 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 19.12/9.92 [2019-03-28 22:37:17,283 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 19.12/9.92 [2019-03-28 22:37:17,283 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 19.12/9.92 [2019-03-28 22:37:17,283 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 19.12/9.92 [2019-03-28 22:37:17,283 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 19.12/9.92 [2019-03-28 22:37:17,283 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 19.12/9.92 [2019-03-28 22:37:17,309 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 19.12/9.92 [2019-03-28 22:37:17,322 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 19.12/9.92 [2019-03-28 22:37:17,326 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 19.12/9.92 [2019-03-28 22:37:17,327 INFO L271 PluginConnector]: Initializing CDTParser... 19.12/9.92 [2019-03-28 22:37:17,328 INFO L276 PluginConnector]: CDTParser initialized 19.12/9.92 [2019-03-28 22:37:17,329 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c 19.12/9.92 [2019-03-28 22:37:17,400 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/8d80d7e82aa24415985683786e5bb215/FLAG8f697d310 19.12/9.92 [2019-03-28 22:37:17,734 INFO L307 CDTParser]: Found 1 translation units. 19.12/9.92 [2019-03-28 22:37:17,735 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c 19.12/9.92 [2019-03-28 22:37:17,742 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/8d80d7e82aa24415985683786e5bb215/FLAG8f697d310 19.12/9.92 [2019-03-28 22:37:18,171 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/8d80d7e82aa24415985683786e5bb215 19.12/9.92 [2019-03-28 22:37:18,182 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 19.12/9.92 [2019-03-28 22:37:18,184 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 19.12/9.92 [2019-03-28 22:37:18,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 19.12/9.92 [2019-03-28 22:37:18,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 19.12/9.92 [2019-03-28 22:37:18,189 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 19.12/9.92 [2019-03-28 22:37:18,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 10:37:18" (1/1) ... 19.12/9.92 [2019-03-28 22:37:18,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@605abf66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:37:18, skipping insertion in model container 19.12/9.92 [2019-03-28 22:37:18,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 10:37:18" (1/1) ... 19.12/9.92 [2019-03-28 22:37:18,202 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 19.12/9.92 [2019-03-28 22:37:18,220 INFO L176 MainTranslator]: Built tables and reachable declarations 19.12/9.92 [2019-03-28 22:37:18,382 INFO L206 PostProcessor]: Analyzing one entry point: main 19.12/9.92 [2019-03-28 22:37:18,387 INFO L191 MainTranslator]: Completed pre-run 19.12/9.92 [2019-03-28 22:37:18,404 INFO L206 PostProcessor]: Analyzing one entry point: main 19.12/9.92 [2019-03-28 22:37:18,420 INFO L195 MainTranslator]: Completed translation 19.12/9.92 [2019-03-28 22:37:18,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:37:18 WrapperNode 19.12/9.92 [2019-03-28 22:37:18,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 19.12/9.92 [2019-03-28 22:37:18,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 19.12/9.92 [2019-03-28 22:37:18,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 19.12/9.92 [2019-03-28 22:37:18,422 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 19.12/9.92 [2019-03-28 22:37:18,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:37:18" (1/1) ... 19.12/9.92 [2019-03-28 22:37:18,494 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:37:18" (1/1) ... 19.12/9.92 [2019-03-28 22:37:18,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 19.12/9.92 [2019-03-28 22:37:18,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 19.12/9.92 [2019-03-28 22:37:18,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 19.12/9.92 [2019-03-28 22:37:18,524 INFO L276 PluginConnector]: Boogie Preprocessor initialized 19.12/9.92 [2019-03-28 22:37:18,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:37:18" (1/1) ... 19.12/9.92 [2019-03-28 22:37:18,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:37:18" (1/1) ... 19.12/9.92 [2019-03-28 22:37:18,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:37:18" (1/1) ... 19.12/9.92 [2019-03-28 22:37:18,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:37:18" (1/1) ... 19.12/9.92 [2019-03-28 22:37:18,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:37:18" (1/1) ... 19.12/9.92 [2019-03-28 22:37:18,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:37:18" (1/1) ... 19.12/9.92 [2019-03-28 22:37:18,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:37:18" (1/1) ... 19.12/9.92 [2019-03-28 22:37:18,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 19.12/9.92 [2019-03-28 22:37:18,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 19.12/9.92 [2019-03-28 22:37:18,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... 19.12/9.92 [2019-03-28 22:37:18,545 INFO L276 PluginConnector]: RCFGBuilder initialized 19.12/9.92 [2019-03-28 22:37:18,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:37:18" (1/1) ... 19.12/9.92 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.12/9.92 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 19.12/9.92 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 19.12/9.92 [2019-03-28 22:37:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 19.12/9.92 [2019-03-28 22:37:18,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 19.12/9.92 [2019-03-28 22:37:18,735 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 19.12/9.92 [2019-03-28 22:37:18,735 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. 19.12/9.92 [2019-03-28 22:37:18,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:37:18 BoogieIcfgContainer 19.12/9.92 [2019-03-28 22:37:18,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 19.12/9.92 [2019-03-28 22:37:18,737 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 19.12/9.92 [2019-03-28 22:37:18,737 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 19.12/9.92 [2019-03-28 22:37:18,739 INFO L276 PluginConnector]: BlockEncodingV2 initialized 19.12/9.92 [2019-03-28 22:37:18,740 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:37:18" (1/1) ... 19.12/9.92 [2019-03-28 22:37:18,755 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges 19.12/9.92 [2019-03-28 22:37:18,757 INFO L258 BlockEncoder]: Using Remove infeasible edges 19.12/9.92 [2019-03-28 22:37:18,757 INFO L263 BlockEncoder]: Using Maximize final states 19.12/9.92 [2019-03-28 22:37:18,758 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 19.12/9.92 [2019-03-28 22:37:18,758 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 19.12/9.92 [2019-03-28 22:37:18,760 INFO L296 BlockEncoder]: Using Remove sink states 19.12/9.92 [2019-03-28 22:37:18,761 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 19.12/9.92 [2019-03-28 22:37:18,761 INFO L179 BlockEncoder]: Using Rewrite not-equals 19.12/9.92 [2019-03-28 22:37:18,777 INFO L185 BlockEncoder]: Using Use SBE 19.12/9.92 [2019-03-28 22:37:18,785 INFO L200 BlockEncoder]: SBE split 0 edges 19.12/9.92 [2019-03-28 22:37:18,790 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility 19.12/9.92 [2019-03-28 22:37:18,792 INFO L71 MaximizeFinalStates]: 0 new accepting states 19.12/9.92 [2019-03-28 22:37:18,806 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding 19.12/9.92 [2019-03-28 22:37:18,808 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states 19.12/9.92 [2019-03-28 22:37:18,809 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 19.12/9.92 [2019-03-28 22:37:18,810 INFO L71 MaximizeFinalStates]: 0 new accepting states 19.12/9.92 [2019-03-28 22:37:18,810 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 19.12/9.92 [2019-03-28 22:37:18,810 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 19.12/9.92 [2019-03-28 22:37:18,810 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges 19.12/9.92 [2019-03-28 22:37:18,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:37:18 BasicIcfg 19.12/9.92 [2019-03-28 22:37:18,811 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 19.12/9.92 [2019-03-28 22:37:18,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 19.12/9.92 [2019-03-28 22:37:18,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... 19.12/9.92 [2019-03-28 22:37:18,816 INFO L276 PluginConnector]: TraceAbstraction initialized 19.12/9.92 [2019-03-28 22:37:18,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 10:37:18" (1/4) ... 19.12/9.92 [2019-03-28 22:37:18,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7689fe2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 10:37:18, skipping insertion in model container 19.12/9.92 [2019-03-28 22:37:18,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:37:18" (2/4) ... 19.12/9.92 [2019-03-28 22:37:18,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7689fe2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 10:37:18, skipping insertion in model container 19.12/9.92 [2019-03-28 22:37:18,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:37:18" (3/4) ... 19.12/9.92 [2019-03-28 22:37:18,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7689fe2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:37:18, skipping insertion in model container 19.12/9.92 [2019-03-28 22:37:18,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:37:18" (4/4) ... 19.12/9.92 [2019-03-28 22:37:18,820 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 19.12/9.92 [2019-03-28 22:37:18,831 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 19.12/9.92 [2019-03-28 22:37:18,839 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. 19.12/9.92 [2019-03-28 22:37:18,857 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. 19.12/9.92 [2019-03-28 22:37:18,886 INFO L133 ementStrategyFactory]: Using default assertion order modulation 19.12/9.92 [2019-03-28 22:37:18,887 INFO L382 AbstractCegarLoop]: Interprodecural is true 19.12/9.92 [2019-03-28 22:37:18,887 INFO L383 AbstractCegarLoop]: Hoare is true 19.12/9.92 [2019-03-28 22:37:18,888 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 19.12/9.92 [2019-03-28 22:37:18,888 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 19.12/9.92 [2019-03-28 22:37:18,888 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 19.12/9.92 [2019-03-28 22:37:18,888 INFO L387 AbstractCegarLoop]: Difference is false 19.12/9.92 [2019-03-28 22:37:18,888 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 19.12/9.92 [2019-03-28 22:37:18,888 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 19.12/9.92 [2019-03-28 22:37:18,903 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. 19.12/9.92 [2019-03-28 22:37:18,909 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. 19.12/9.92 [2019-03-28 22:37:18,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. 19.12/9.92 [2019-03-28 22:37:18,965 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. 19.12/9.92 [2019-03-28 22:37:18,966 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. 19.12/9.92 [2019-03-28 22:37:18,966 INFO L451 ceAbstractionStarter]: At program point L21-2(lines 19 26) the Hoare annotation is: true 19.12/9.92 [2019-03-28 22:37:18,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:37:18 BasicIcfg 19.12/9.92 [2019-03-28 22:37:18,974 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 19.12/9.92 [2019-03-28 22:37:18,975 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 19.12/9.92 [2019-03-28 22:37:18,975 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 19.12/9.92 [2019-03-28 22:37:18,978 INFO L276 PluginConnector]: BuchiAutomizer initialized 19.12/9.92 [2019-03-28 22:37:18,979 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 19.12/9.92 [2019-03-28 22:37:18,979 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.03 10:37:18" (1/5) ... 19.12/9.92 [2019-03-28 22:37:18,980 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@128192d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 10:37:18, skipping insertion in model container 19.12/9.92 [2019-03-28 22:37:18,980 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 19.12/9.92 [2019-03-28 22:37:18,980 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:37:18" (2/5) ... 19.12/9.92 [2019-03-28 22:37:18,981 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@128192d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 10:37:18, skipping insertion in model container 19.12/9.92 [2019-03-28 22:37:18,981 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 19.12/9.92 [2019-03-28 22:37:18,981 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:37:18" (3/5) ... 19.12/9.92 [2019-03-28 22:37:18,981 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@128192d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:37:18, skipping insertion in model container 19.12/9.92 [2019-03-28 22:37:18,982 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 19.12/9.92 [2019-03-28 22:37:18,982 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:37:18" (4/5) ... 19.12/9.92 [2019-03-28 22:37:18,982 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@128192d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:37:18, skipping insertion in model container 19.12/9.92 [2019-03-28 22:37:18,982 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 19.12/9.92 [2019-03-28 22:37:18,982 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:37:18" (5/5) ... 19.12/9.92 [2019-03-28 22:37:18,984 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 19.12/9.92 [2019-03-28 22:37:19,010 INFO L133 ementStrategyFactory]: Using default assertion order modulation 19.12/9.92 [2019-03-28 22:37:19,010 INFO L374 BuchiCegarLoop]: Interprodecural is true 19.12/9.92 [2019-03-28 22:37:19,010 INFO L375 BuchiCegarLoop]: Hoare is true 19.12/9.92 [2019-03-28 22:37:19,011 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates 19.12/9.92 [2019-03-28 22:37:19,011 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE 19.12/9.92 [2019-03-28 22:37:19,011 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION 19.12/9.92 [2019-03-28 22:37:19,011 INFO L379 BuchiCegarLoop]: Difference is false 19.12/9.92 [2019-03-28 22:37:19,011 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA 19.12/9.92 [2019-03-28 22:37:19,011 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== 19.12/9.92 [2019-03-28 22:37:19,014 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. 19.12/9.92 [2019-03-28 22:37:19,031 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 19.12/9.92 [2019-03-28 22:37:19,032 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 19.12/9.92 [2019-03-28 22:37:19,032 INFO L119 BuchiIsEmpty]: Starting construction of run 19.12/9.92 [2019-03-28 22:37:19,037 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 19.12/9.92 [2019-03-28 22:37:19,038 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 19.12/9.92 [2019-03-28 22:37:19,038 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ 19.12/9.92 [2019-03-28 22:37:19,038 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. 19.12/9.92 [2019-03-28 22:37:19,038 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 19.12/9.92 [2019-03-28 22:37:19,039 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 19.12/9.92 [2019-03-28 22:37:19,039 INFO L119 BuchiIsEmpty]: Starting construction of run 19.12/9.92 [2019-03-28 22:37:19,039 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 19.12/9.92 [2019-03-28 22:37:19,039 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 19.12/9.92 [2019-03-28 22:37:19,044 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [26] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 5#L21-2true 19.12/9.93 [2019-03-28 22:37:19,045 INFO L796 eck$LassoCheckResult]: Loop: 5#L21-2true [31] L21-2-->L21: Formula: (and (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 3#L21true [34] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_7 (+ v_ULTIMATE.start_main_~z~0_8 1)) (>= v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~z~0_8)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 5#L21-2true 19.12/9.93 [2019-03-28 22:37:19,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.12/9.93 [2019-03-28 22:37:19,051 INFO L82 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times 19.12/9.93 [2019-03-28 22:37:19,053 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 19.12/9.93 [2019-03-28 22:37:19,054 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 19.12/9.93 [2019-03-28 22:37:19,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:19,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:19,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:19,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:19,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.12/9.93 [2019-03-28 22:37:19,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1956, now seen corresponding path program 1 times 19.12/9.93 [2019-03-28 22:37:19,126 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 19.12/9.93 [2019-03-28 22:37:19,126 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 19.12/9.93 [2019-03-28 22:37:19,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:19,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:19,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:19,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.12/9.93 [2019-03-28 22:37:19,141 INFO L82 PathProgramCache]: Analyzing trace with hash 55772, now seen corresponding path program 1 times 19.12/9.93 [2019-03-28 22:37:19,141 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 19.12/9.93 [2019-03-28 22:37:19,141 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 19.12/9.93 [2019-03-28 22:37:19,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:19,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:19,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:19,208 INFO L216 LassoAnalysis]: Preferences: 19.12/9.93 [2019-03-28 22:37:19,209 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 19.12/9.93 [2019-03-28 22:37:19,209 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 19.12/9.93 [2019-03-28 22:37:19,209 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 19.12/9.93 [2019-03-28 22:37:19,209 INFO L127 ssoRankerPreferences]: Use exernal solver: true 19.12/9.93 [2019-03-28 22:37:19,210 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:19,210 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 19.12/9.93 [2019-03-28 22:37:19,210 INFO L130 ssoRankerPreferences]: Path of dumped script: 19.12/9.93 [2019-03-28 22:37:19,210 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 19.12/9.93 [2019-03-28 22:37:19,210 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 19.12/9.93 [2019-03-28 22:37:19,211 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 19.12/9.93 [2019-03-28 22:37:19,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:19,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:19,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:19,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:19,340 INFO L300 LassoAnalysis]: Preprocessing complete. 19.12/9.93 [2019-03-28 22:37:19,341 INFO L412 LassoAnalysis]: Checking for nontermination... 19.12/9.93 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.12/9.93 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.12/9.93 Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:19,347 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.12/9.93 [2019-03-28 22:37:19,347 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.12/9.93 [2019-03-28 22:37:19,380 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.12/9.93 [2019-03-28 22:37:19,381 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: [] 19.12/9.93 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.12/9.93 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.12/9.93 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:19,387 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.12/9.93 [2019-03-28 22:37:19,387 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.12/9.93 [2019-03-28 22:37:19,415 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.12/9.93 [2019-03-28 22:37:19,415 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: [] 19.12/9.93 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.12/9.93 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.12/9.93 Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:19,420 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.12/9.93 [2019-03-28 22:37:19,421 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.12/9.93 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.12/9.93 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.12/9.93 Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:19,452 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 19.12/9.93 [2019-03-28 22:37:19,452 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.12/9.93 [2019-03-28 22:37:19,767 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 19.12/9.93 [2019-03-28 22:37:19,770 INFO L216 LassoAnalysis]: Preferences: 19.12/9.93 [2019-03-28 22:37:19,770 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 19.12/9.93 [2019-03-28 22:37:19,770 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 19.12/9.93 [2019-03-28 22:37:19,771 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 19.12/9.93 [2019-03-28 22:37:19,771 INFO L127 ssoRankerPreferences]: Use exernal solver: false 19.12/9.93 [2019-03-28 22:37:19,771 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:19,771 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 19.12/9.93 [2019-03-28 22:37:19,771 INFO L130 ssoRankerPreferences]: Path of dumped script: 19.12/9.93 [2019-03-28 22:37:19,771 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 19.12/9.93 [2019-03-28 22:37:19,771 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 19.12/9.93 [2019-03-28 22:37:19,771 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 19.12/9.93 [2019-03-28 22:37:19,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:19,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:19,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:19,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:19,864 INFO L300 LassoAnalysis]: Preprocessing complete. 19.12/9.93 [2019-03-28 22:37:19,870 INFO L497 LassoAnalysis]: Using template 'affine'. 19.12/9.93 [2019-03-28 22:37:19,872 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 19.12/9.93 Termination analysis: LINEAR_WITH_GUESSES 19.12/9.93 Number of strict supporting invariants: 0 19.12/9.93 Number of non-strict supporting invariants: 1 19.12/9.93 Consider only non-deceasing supporting invariants: true 19.12/9.93 Simplify termination arguments: true 19.12/9.93 Simplify supporting invariants: trueOverapproximate stem: false 19.12/9.93 [2019-03-28 22:37:19,873 INFO L339 nArgumentSynthesizer]: Template has degree 0. 19.12/9.93 [2019-03-28 22:37:19,874 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 19.12/9.93 [2019-03-28 22:37:19,874 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 19.12/9.93 [2019-03-28 22:37:19,874 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 19.12/9.93 [2019-03-28 22:37:19,879 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 19.12/9.93 [2019-03-28 22:37:19,879 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 19.12/9.93 [2019-03-28 22:37:19,888 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 19.12/9.93 [2019-03-28 22:37:19,888 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 19.12/9.93 Termination analysis: LINEAR_WITH_GUESSES 19.12/9.93 Number of strict supporting invariants: 0 19.12/9.93 Number of non-strict supporting invariants: 1 19.12/9.93 Consider only non-deceasing supporting invariants: true 19.12/9.93 Simplify termination arguments: true 19.12/9.93 Simplify supporting invariants: trueOverapproximate stem: false 19.12/9.93 [2019-03-28 22:37:19,889 INFO L339 nArgumentSynthesizer]: Template has degree 0. 19.12/9.93 [2019-03-28 22:37:19,889 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 19.12/9.93 [2019-03-28 22:37:19,889 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 19.12/9.93 [2019-03-28 22:37:19,889 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 19.12/9.93 [2019-03-28 22:37:19,892 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 19.12/9.93 [2019-03-28 22:37:19,892 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 19.12/9.93 [2019-03-28 22:37:19,900 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 19.12/9.93 [2019-03-28 22:37:19,901 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 19.12/9.93 Termination analysis: LINEAR_WITH_GUESSES 19.12/9.93 Number of strict supporting invariants: 0 19.12/9.93 Number of non-strict supporting invariants: 1 19.12/9.93 Consider only non-deceasing supporting invariants: true 19.12/9.93 Simplify termination arguments: true 19.12/9.93 Simplify supporting invariants: trueOverapproximate stem: false 19.12/9.93 [2019-03-28 22:37:19,901 INFO L339 nArgumentSynthesizer]: Template has degree 0. 19.12/9.93 [2019-03-28 22:37:19,902 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 19.12/9.93 [2019-03-28 22:37:19,902 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 19.12/9.93 [2019-03-28 22:37:19,903 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 19.12/9.93 [2019-03-28 22:37:19,903 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 19.12/9.93 [2019-03-28 22:37:19,904 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 19.12/9.93 [2019-03-28 22:37:19,904 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 19.12/9.93 [2019-03-28 22:37:19,911 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 19.12/9.93 [2019-03-28 22:37:19,918 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 19.12/9.93 [2019-03-28 22:37:19,918 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. 19.12/9.93 [2019-03-28 22:37:19,920 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 19.12/9.93 [2019-03-28 22:37:19,921 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 19.12/9.93 [2019-03-28 22:37:19,921 INFO L518 LassoAnalysis]: Proved termination. 19.12/9.93 [2019-03-28 22:37:19,921 INFO L520 LassoAnalysis]: Termination argument consisting of: 19.12/9.93 Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~z~0 + 2*ULTIMATE.start_main_~x~0 + 1 19.12/9.93 Supporting invariants [] 19.12/9.93 [2019-03-28 22:37:19,923 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 19.12/9.93 [2019-03-28 22:37:19,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.12/9.93 [2019-03-28 22:37:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 19.12/9.93 [2019-03-28 22:37:19,964 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core 19.12/9.93 [2019-03-28 22:37:19,966 INFO L279 TraceCheckSpWp]: Computing forward predicates... 19.12/9.93 [2019-03-28 22:37:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 19.12/9.93 [2019-03-28 22:37:19,976 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core 19.12/9.93 [2019-03-28 22:37:19,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... 19.12/9.93 [2019-03-28 22:37:19,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 19.12/9.93 [2019-03-28 22:37:19,992 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization 19.12/9.93 [2019-03-28 22:37:19,996 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 1 loop predicates 19.12/9.93 [2019-03-28 22:37:19,998 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. 19.12/9.93 [2019-03-28 22:37:20,025 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 7 states and 10 transitions. Complement of second has 4 states. 19.12/9.93 [2019-03-28 22:37:20,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states 19.12/9.93 [2019-03-28 22:37:20,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 19.12/9.93 [2019-03-28 22:37:20,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. 19.12/9.93 [2019-03-28 22:37:20,030 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 2 letters. 19.12/9.93 [2019-03-28 22:37:20,032 INFO L116 BuchiAccepts]: Finished buchiAccepts. 19.12/9.93 [2019-03-28 22:37:20,032 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. 19.12/9.93 [2019-03-28 22:37:20,032 INFO L116 BuchiAccepts]: Finished buchiAccepts. 19.12/9.93 [2019-03-28 22:37:20,032 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 4 letters. 19.12/9.93 [2019-03-28 22:37:20,033 INFO L116 BuchiAccepts]: Finished buchiAccepts. 19.12/9.93 [2019-03-28 22:37:20,039 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. 19.12/9.93 [2019-03-28 22:37:20,039 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 19.12/9.93 [2019-03-28 22:37:20,043 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 10 transitions. 19.12/9.93 [2019-03-28 22:37:20,044 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 19.12/9.93 [2019-03-28 22:37:20,045 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 19.12/9.93 [2019-03-28 22:37:20,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. 19.12/9.93 [2019-03-28 22:37:20,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 19.12/9.93 [2019-03-28 22:37:20,046 INFO L706 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. 19.12/9.93 [2019-03-28 22:37:20,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. 19.12/9.93 [2019-03-28 22:37:20,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. 19.12/9.93 [2019-03-28 22:37:20,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. 19.12/9.93 [2019-03-28 22:37:20,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. 19.12/9.93 [2019-03-28 22:37:20,075 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. 19.12/9.93 [2019-03-28 22:37:20,075 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. 19.12/9.93 [2019-03-28 22:37:20,075 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ 19.12/9.93 [2019-03-28 22:37:20,075 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. 19.12/9.93 [2019-03-28 22:37:20,076 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 19.12/9.93 [2019-03-28 22:37:20,076 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 19.12/9.93 [2019-03-28 22:37:20,076 INFO L119 BuchiIsEmpty]: Starting construction of run 19.12/9.93 [2019-03-28 22:37:20,076 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] 19.12/9.93 [2019-03-28 22:37:20,077 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 19.12/9.93 [2019-03-28 22:37:20,077 INFO L794 eck$LassoCheckResult]: Stem: 45#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_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_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet3_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_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 46#L21-2 [31] L21-2-->L21: Formula: (and (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 41#L21 [24] L21-->L21-2: Formula: (and (< v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~z~0_6) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 42#L21-2 19.12/9.93 [2019-03-28 22:37:20,077 INFO L796 eck$LassoCheckResult]: Loop: 42#L21-2 [31] L21-2-->L21: Formula: (and (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 47#L21 [34] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_7 (+ v_ULTIMATE.start_main_~z~0_8 1)) (>= v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~z~0_8)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 42#L21-2 19.12/9.93 [2019-03-28 22:37:20,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.12/9.93 [2019-03-28 22:37:20,078 INFO L82 PathProgramCache]: Analyzing trace with hash 55762, now seen corresponding path program 1 times 19.12/9.93 [2019-03-28 22:37:20,078 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 19.12/9.93 [2019-03-28 22:37:20,078 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 19.12/9.93 [2019-03-28 22:37:20,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:20,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:20,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:20,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.12/9.93 [2019-03-28 22:37:20,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1956, now seen corresponding path program 2 times 19.12/9.93 [2019-03-28 22:37:20,090 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 19.12/9.93 [2019-03-28 22:37:20,091 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 19.12/9.93 [2019-03-28 22:37:20,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:20,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:20,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:20,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.12/9.93 [2019-03-28 22:37:20,099 INFO L82 PathProgramCache]: Analyzing trace with hash 53588277, now seen corresponding path program 1 times 19.12/9.93 [2019-03-28 22:37:20,099 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 19.12/9.93 [2019-03-28 22:37:20,099 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 19.12/9.93 [2019-03-28 22:37:20,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:20,100 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:20,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:20,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:20,134 INFO L216 LassoAnalysis]: Preferences: 19.12/9.93 [2019-03-28 22:37:20,134 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 19.12/9.93 [2019-03-28 22:37:20,134 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 19.12/9.93 [2019-03-28 22:37:20,135 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 19.12/9.93 [2019-03-28 22:37:20,135 INFO L127 ssoRankerPreferences]: Use exernal solver: true 19.12/9.93 [2019-03-28 22:37:20,135 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:20,135 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 19.12/9.93 [2019-03-28 22:37:20,135 INFO L130 ssoRankerPreferences]: Path of dumped script: 19.12/9.93 [2019-03-28 22:37:20,135 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 19.12/9.93 [2019-03-28 22:37:20,135 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 19.12/9.93 [2019-03-28 22:37:20,135 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 19.12/9.93 [2019-03-28 22:37:20,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:20,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:20,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:20,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:20,195 INFO L300 LassoAnalysis]: Preprocessing complete. 19.12/9.93 [2019-03-28 22:37:20,195 INFO L412 LassoAnalysis]: Checking for nontermination... 19.12/9.93 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.12/9.93 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.12/9.93 Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:20,198 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.12/9.93 [2019-03-28 22:37:20,199 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.12/9.93 [2019-03-28 22:37:20,225 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.12/9.93 [2019-03-28 22:37:20,225 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: [] 19.12/9.93 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.12/9.93 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.12/9.93 Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:20,230 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.12/9.93 [2019-03-28 22:37:20,230 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.12/9.93 [2019-03-28 22:37:20,256 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.12/9.93 [2019-03-28 22:37:20,256 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: [] 19.12/9.93 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.12/9.93 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.12/9.93 Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:20,261 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.12/9.93 [2019-03-28 22:37:20,261 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.12/9.93 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.12/9.93 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.12/9.93 Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:20,291 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 19.12/9.93 [2019-03-28 22:37:20,291 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.12/9.93 [2019-03-28 22:37:20,631 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 19.12/9.93 [2019-03-28 22:37:20,634 INFO L216 LassoAnalysis]: Preferences: 19.12/9.93 [2019-03-28 22:37:20,634 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 19.12/9.93 [2019-03-28 22:37:20,634 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 19.12/9.93 [2019-03-28 22:37:20,634 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 19.12/9.93 [2019-03-28 22:37:20,634 INFO L127 ssoRankerPreferences]: Use exernal solver: false 19.12/9.93 [2019-03-28 22:37:20,635 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:20,635 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 19.12/9.93 [2019-03-28 22:37:20,635 INFO L130 ssoRankerPreferences]: Path of dumped script: 19.12/9.93 [2019-03-28 22:37:20,635 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 19.12/9.93 [2019-03-28 22:37:20,635 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 19.12/9.93 [2019-03-28 22:37:20,635 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 19.12/9.93 [2019-03-28 22:37:20,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:20,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:20,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:20,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:20,708 INFO L300 LassoAnalysis]: Preprocessing complete. 19.12/9.93 [2019-03-28 22:37:20,708 INFO L497 LassoAnalysis]: Using template 'affine'. 19.12/9.93 [2019-03-28 22:37:20,709 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 19.12/9.93 Termination analysis: LINEAR_WITH_GUESSES 19.12/9.93 Number of strict supporting invariants: 0 19.12/9.93 Number of non-strict supporting invariants: 1 19.12/9.93 Consider only non-deceasing supporting invariants: true 19.12/9.93 Simplify termination arguments: true 19.12/9.93 Simplify supporting invariants: trueOverapproximate stem: false 19.12/9.93 [2019-03-28 22:37:20,709 INFO L339 nArgumentSynthesizer]: Template has degree 0. 19.12/9.93 [2019-03-28 22:37:20,710 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 19.12/9.93 [2019-03-28 22:37:20,710 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 19.12/9.93 [2019-03-28 22:37:20,710 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 19.12/9.93 [2019-03-28 22:37:20,712 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 19.12/9.93 [2019-03-28 22:37:20,712 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 19.12/9.93 [2019-03-28 22:37:20,716 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 19.12/9.93 [2019-03-28 22:37:20,717 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 19.12/9.93 Termination analysis: LINEAR_WITH_GUESSES 19.12/9.93 Number of strict supporting invariants: 0 19.12/9.93 Number of non-strict supporting invariants: 1 19.12/9.93 Consider only non-deceasing supporting invariants: true 19.12/9.93 Simplify termination arguments: true 19.12/9.93 Simplify supporting invariants: trueOverapproximate stem: false 19.12/9.93 [2019-03-28 22:37:20,718 INFO L339 nArgumentSynthesizer]: Template has degree 0. 19.12/9.93 [2019-03-28 22:37:20,718 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 19.12/9.93 [2019-03-28 22:37:20,718 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 19.12/9.93 [2019-03-28 22:37:20,718 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 19.12/9.93 [2019-03-28 22:37:20,718 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 19.12/9.93 [2019-03-28 22:37:20,719 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 19.12/9.93 [2019-03-28 22:37:20,720 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 19.12/9.93 [2019-03-28 22:37:20,725 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 19.12/9.93 [2019-03-28 22:37:20,730 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 19.12/9.93 [2019-03-28 22:37:20,730 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. 19.12/9.93 [2019-03-28 22:37:20,730 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 19.12/9.93 [2019-03-28 22:37:20,730 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 19.12/9.93 [2019-03-28 22:37:20,731 INFO L518 LassoAnalysis]: Proved termination. 19.12/9.93 [2019-03-28 22:37:20,731 INFO L520 LassoAnalysis]: Termination argument consisting of: 19.12/9.93 Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = 2*ULTIMATE.start_main_~x~0 - 2*ULTIMATE.start_main_~z~0 + 1 19.12/9.93 Supporting invariants [] 19.12/9.93 [2019-03-28 22:37:20,731 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 19.12/9.93 [2019-03-28 22:37:20,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.12/9.93 [2019-03-28 22:37:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 19.12/9.93 [2019-03-28 22:37:20,762 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core 19.12/9.93 [2019-03-28 22:37:20,763 INFO L279 TraceCheckSpWp]: Computing forward predicates... 19.12/9.93 [2019-03-28 22:37:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 19.12/9.93 [2019-03-28 22:37:20,768 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core 19.12/9.93 [2019-03-28 22:37:20,769 INFO L279 TraceCheckSpWp]: Computing forward predicates... 19.12/9.93 [2019-03-28 22:37:20,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 19.12/9.93 [2019-03-28 22:37:20,770 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization 19.12/9.93 [2019-03-28 22:37:20,771 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 1 loop predicates 19.12/9.93 [2019-03-28 22:37:20,771 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. 19.12/9.93 [2019-03-28 22:37:20,784 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 9 states and 13 transitions. Complement of second has 4 states. 19.12/9.93 [2019-03-28 22:37:20,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states 19.12/9.93 [2019-03-28 22:37:20,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 19.12/9.93 [2019-03-28 22:37:20,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. 19.12/9.93 [2019-03-28 22:37:20,786 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. 19.12/9.93 [2019-03-28 22:37:20,786 INFO L116 BuchiAccepts]: Finished buchiAccepts. 19.12/9.93 [2019-03-28 22:37:20,786 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. 19.12/9.93 [2019-03-28 22:37:20,787 INFO L116 BuchiAccepts]: Finished buchiAccepts. 19.12/9.93 [2019-03-28 22:37:20,787 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 4 letters. 19.12/9.93 [2019-03-28 22:37:20,788 INFO L116 BuchiAccepts]: Finished buchiAccepts. 19.12/9.93 [2019-03-28 22:37:20,789 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 13 transitions. 19.12/9.93 [2019-03-28 22:37:20,790 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 19.12/9.93 [2019-03-28 22:37:20,790 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 13 transitions. 19.12/9.93 [2019-03-28 22:37:20,790 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 19.12/9.93 [2019-03-28 22:37:20,790 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 19.12/9.93 [2019-03-28 22:37:20,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. 19.12/9.93 [2019-03-28 22:37:20,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 19.12/9.93 [2019-03-28 22:37:20,791 INFO L706 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. 19.12/9.93 [2019-03-28 22:37:20,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. 19.12/9.93 [2019-03-28 22:37:20,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 5. 19.12/9.93 [2019-03-28 22:37:20,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. 19.12/9.93 [2019-03-28 22:37:20,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. 19.12/9.93 [2019-03-28 22:37:20,792 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. 19.12/9.93 [2019-03-28 22:37:20,793 INFO L609 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. 19.12/9.93 [2019-03-28 22:37:20,793 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ 19.12/9.93 [2019-03-28 22:37:20,793 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. 19.12/9.93 [2019-03-28 22:37:20,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 19.12/9.93 [2019-03-28 22:37:20,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 19.12/9.93 [2019-03-28 22:37:20,793 INFO L119 BuchiIsEmpty]: Starting construction of run 19.12/9.93 [2019-03-28 22:37:20,794 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 19.12/9.93 [2019-03-28 22:37:20,794 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 19.12/9.93 [2019-03-28 22:37:20,794 INFO L794 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 92#L21-2 19.12/9.93 [2019-03-28 22:37:20,794 INFO L796 eck$LassoCheckResult]: Loop: 92#L21-2 [31] L21-2-->L21: Formula: (and (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 91#L21 [24] L21-->L21-2: Formula: (and (< v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~z~0_6) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 92#L21-2 19.12/9.93 [2019-03-28 22:37:20,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.12/9.93 [2019-03-28 22:37:20,795 INFO L82 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 2 times 19.12/9.93 [2019-03-28 22:37:20,795 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 19.12/9.93 [2019-03-28 22:37:20,795 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 19.12/9.93 [2019-03-28 22:37:20,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:20,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:20,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:20,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:20,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.12/9.93 [2019-03-28 22:37:20,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1946, now seen corresponding path program 1 times 19.12/9.93 [2019-03-28 22:37:20,803 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 19.12/9.93 [2019-03-28 22:37:20,803 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 19.12/9.93 [2019-03-28 22:37:20,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:20,804 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:20,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:20,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.12/9.93 [2019-03-28 22:37:20,811 INFO L82 PathProgramCache]: Analyzing trace with hash 55762, now seen corresponding path program 2 times 19.12/9.93 [2019-03-28 22:37:20,811 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 19.12/9.93 [2019-03-28 22:37:20,811 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 19.12/9.93 [2019-03-28 22:37:20,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:20,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:20,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:20,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:20,842 INFO L216 LassoAnalysis]: Preferences: 19.12/9.93 [2019-03-28 22:37:20,842 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 19.12/9.93 [2019-03-28 22:37:20,842 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 19.12/9.93 [2019-03-28 22:37:20,842 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 19.12/9.93 [2019-03-28 22:37:20,843 INFO L127 ssoRankerPreferences]: Use exernal solver: true 19.12/9.93 [2019-03-28 22:37:20,843 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:20,843 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 19.12/9.93 [2019-03-28 22:37:20,843 INFO L130 ssoRankerPreferences]: Path of dumped script: 19.12/9.93 [2019-03-28 22:37:20,844 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 19.12/9.93 [2019-03-28 22:37:20,844 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 19.12/9.93 [2019-03-28 22:37:20,844 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 19.12/9.93 [2019-03-28 22:37:20,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:20,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:20,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:20,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:20,917 INFO L300 LassoAnalysis]: Preprocessing complete. 19.12/9.93 [2019-03-28 22:37:20,918 INFO L412 LassoAnalysis]: Checking for nontermination... 19.12/9.93 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.12/9.93 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.12/9.93 Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:20,922 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.12/9.93 [2019-03-28 22:37:20,923 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.12/9.93 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.12/9.93 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.12/9.93 Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:20,955 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 19.12/9.93 [2019-03-28 22:37:20,955 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.12/9.93 [2019-03-28 22:37:20,993 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.12/9.93 [2019-03-28 22:37:20,993 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=-1}, {ULTIMATE.start_main_~i~0=-5}, {ULTIMATE.start_main_~i~0=7}] Lambdas: [1, 1, 1] Nus: [0, 0] 19.12/9.93 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.12/9.93 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.12/9.93 Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:21,022 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.12/9.93 [2019-03-28 22:37:21,022 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.12/9.93 [2019-03-28 22:37:21,052 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.12/9.93 [2019-03-28 22:37:21,052 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.12/9.93 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.12/9.93 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.12/9.93 Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:21,058 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.12/9.93 [2019-03-28 22:37:21,058 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.12/9.93 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.12/9.93 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.12/9.93 Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:21,091 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 19.12/9.93 [2019-03-28 22:37:21,092 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.12/9.93 [2019-03-28 22:37:21,304 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 19.12/9.93 [2019-03-28 22:37:21,306 INFO L216 LassoAnalysis]: Preferences: 19.12/9.93 [2019-03-28 22:37:21,306 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 19.12/9.93 [2019-03-28 22:37:21,306 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 19.12/9.93 [2019-03-28 22:37:21,307 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 19.12/9.93 [2019-03-28 22:37:21,307 INFO L127 ssoRankerPreferences]: Use exernal solver: false 19.12/9.93 [2019-03-28 22:37:21,307 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:21,307 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 19.12/9.93 [2019-03-28 22:37:21,307 INFO L130 ssoRankerPreferences]: Path of dumped script: 19.12/9.93 [2019-03-28 22:37:21,307 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 19.12/9.93 [2019-03-28 22:37:21,308 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 19.12/9.93 [2019-03-28 22:37:21,308 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 19.12/9.93 [2019-03-28 22:37:21,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:21,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:21,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:21,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:21,375 INFO L300 LassoAnalysis]: Preprocessing complete. 19.12/9.93 [2019-03-28 22:37:21,376 INFO L497 LassoAnalysis]: Using template 'affine'. 19.12/9.93 [2019-03-28 22:37:21,376 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 19.12/9.93 Termination analysis: LINEAR_WITH_GUESSES 19.12/9.93 Number of strict supporting invariants: 0 19.12/9.93 Number of non-strict supporting invariants: 1 19.12/9.93 Consider only non-deceasing supporting invariants: true 19.12/9.93 Simplify termination arguments: true 19.12/9.93 Simplify supporting invariants: trueOverapproximate stem: false 19.12/9.93 [2019-03-28 22:37:21,377 INFO L339 nArgumentSynthesizer]: Template has degree 0. 19.12/9.93 [2019-03-28 22:37:21,377 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 19.12/9.93 [2019-03-28 22:37:21,378 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 19.12/9.93 [2019-03-28 22:37:21,378 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 19.12/9.93 [2019-03-28 22:37:21,378 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 19.12/9.93 [2019-03-28 22:37:21,379 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 19.12/9.93 [2019-03-28 22:37:21,379 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 19.12/9.93 [2019-03-28 22:37:21,381 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 19.12/9.93 [2019-03-28 22:37:21,382 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 19.12/9.93 Termination analysis: LINEAR_WITH_GUESSES 19.12/9.93 Number of strict supporting invariants: 0 19.12/9.93 Number of non-strict supporting invariants: 1 19.12/9.93 Consider only non-deceasing supporting invariants: true 19.12/9.93 Simplify termination arguments: true 19.12/9.93 Simplify supporting invariants: trueOverapproximate stem: false 19.12/9.93 [2019-03-28 22:37:21,382 INFO L339 nArgumentSynthesizer]: Template has degree 0. 19.12/9.93 [2019-03-28 22:37:21,383 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 19.12/9.93 [2019-03-28 22:37:21,383 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 19.12/9.93 [2019-03-28 22:37:21,383 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 19.12/9.93 [2019-03-28 22:37:21,383 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 19.12/9.93 [2019-03-28 22:37:21,384 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 19.12/9.93 [2019-03-28 22:37:21,384 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 19.12/9.93 [2019-03-28 22:37:21,388 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 19.12/9.93 [2019-03-28 22:37:21,393 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. 19.12/9.93 [2019-03-28 22:37:21,393 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. 19.12/9.93 [2019-03-28 22:37:21,394 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 19.12/9.93 [2019-03-28 22:37:21,394 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 19.12/9.93 [2019-03-28 22:37:21,394 INFO L518 LassoAnalysis]: Proved termination. 19.12/9.93 [2019-03-28 22:37:21,394 INFO L520 LassoAnalysis]: Termination argument consisting of: 19.12/9.93 Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~z~0 - 1*ULTIMATE.start_main_~x~0 19.12/9.93 Supporting invariants [] 19.12/9.93 [2019-03-28 22:37:21,395 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 19.12/9.93 [2019-03-28 22:37:21,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.12/9.93 [2019-03-28 22:37:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 19.12/9.93 [2019-03-28 22:37:21,420 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core 19.12/9.93 [2019-03-28 22:37:21,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... 19.12/9.93 [2019-03-28 22:37:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 19.12/9.93 [2019-03-28 22:37:21,425 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core 19.12/9.93 [2019-03-28 22:37:21,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... 19.12/9.93 [2019-03-28 22:37:21,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 19.12/9.93 [2019-03-28 22:37:21,426 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization 19.12/9.93 [2019-03-28 22:37:21,426 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 1 loop predicates 19.12/9.93 [2019-03-28 22:37:21,426 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. 19.12/9.93 [2019-03-28 22:37:21,439 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 11 states and 17 transitions. Complement of second has 4 states. 19.12/9.93 [2019-03-28 22:37:21,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states 19.12/9.93 [2019-03-28 22:37:21,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 19.12/9.93 [2019-03-28 22:37:21,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. 19.12/9.93 [2019-03-28 22:37:21,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 2 letters. 19.12/9.93 [2019-03-28 22:37:21,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. 19.12/9.93 [2019-03-28 22:37:21,441 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. 19.12/9.93 [2019-03-28 22:37:21,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. 19.12/9.93 [2019-03-28 22:37:21,441 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 4 letters. 19.12/9.93 [2019-03-28 22:37:21,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. 19.12/9.93 [2019-03-28 22:37:21,442 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. 19.12/9.93 [2019-03-28 22:37:21,444 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 19.12/9.93 [2019-03-28 22:37:21,444 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 9 states and 13 transitions. 19.12/9.93 [2019-03-28 22:37:21,444 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 19.12/9.93 [2019-03-28 22:37:21,444 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 19.12/9.93 [2019-03-28 22:37:21,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. 19.12/9.93 [2019-03-28 22:37:21,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 19.12/9.93 [2019-03-28 22:37:21,445 INFO L706 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. 19.12/9.93 [2019-03-28 22:37:21,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. 19.12/9.93 [2019-03-28 22:37:21,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. 19.12/9.93 [2019-03-28 22:37:21,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. 19.12/9.93 [2019-03-28 22:37:21,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 12 transitions. 19.12/9.93 [2019-03-28 22:37:21,446 INFO L729 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. 19.12/9.93 [2019-03-28 22:37:21,447 INFO L609 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. 19.12/9.93 [2019-03-28 22:37:21,447 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ 19.12/9.93 [2019-03-28 22:37:21,447 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 12 transitions. 19.12/9.93 [2019-03-28 22:37:21,448 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 19.12/9.93 [2019-03-28 22:37:21,448 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 19.12/9.93 [2019-03-28 22:37:21,448 INFO L119 BuchiIsEmpty]: Starting construction of run 19.12/9.93 [2019-03-28 22:37:21,450 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] 19.12/9.93 [2019-03-28 22:37:21,450 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 19.12/9.93 [2019-03-28 22:37:21,451 INFO L794 eck$LassoCheckResult]: Stem: 139#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_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_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet3_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_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 140#L21-2 [31] L21-2-->L21: Formula: (and (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 141#L21 [34] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_7 (+ v_ULTIMATE.start_main_~z~0_8 1)) (>= v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~z~0_8)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 142#L21-2 [31] L21-2-->L21: Formula: (and (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 135#L21 19.12/9.93 [2019-03-28 22:37:21,451 INFO L796 eck$LassoCheckResult]: Loop: 135#L21 [24] L21-->L21-2: Formula: (and (< v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~z~0_6) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 136#L21-2 [31] L21-2-->L21: Formula: (and (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 135#L21 19.12/9.93 [2019-03-28 22:37:21,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.12/9.93 [2019-03-28 22:37:21,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1728963, now seen corresponding path program 2 times 19.12/9.93 [2019-03-28 22:37:21,451 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 19.12/9.93 [2019-03-28 22:37:21,452 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 19.12/9.93 [2019-03-28 22:37:21,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:21,453 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:21,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:21,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:21,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.12/9.93 [2019-03-28 22:37:21,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1736, now seen corresponding path program 2 times 19.12/9.93 [2019-03-28 22:37:21,463 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 19.12/9.93 [2019-03-28 22:37:21,463 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 19.12/9.93 [2019-03-28 22:37:21,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:21,464 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:21,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:21,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:21,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.12/9.93 [2019-03-28 22:37:21,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1661534218, now seen corresponding path program 2 times 19.12/9.93 [2019-03-28 22:37:21,469 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 19.12/9.93 [2019-03-28 22:37:21,469 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 19.12/9.93 [2019-03-28 22:37:21,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:21,470 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:21,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:21,497 INFO L216 LassoAnalysis]: Preferences: 19.12/9.93 [2019-03-28 22:37:21,498 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 19.12/9.93 [2019-03-28 22:37:21,498 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 19.12/9.93 [2019-03-28 22:37:21,498 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 19.12/9.93 [2019-03-28 22:37:21,498 INFO L127 ssoRankerPreferences]: Use exernal solver: true 19.12/9.93 [2019-03-28 22:37:21,499 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:21,499 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 19.12/9.93 [2019-03-28 22:37:21,499 INFO L130 ssoRankerPreferences]: Path of dumped script: 19.12/9.93 [2019-03-28 22:37:21,499 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop 19.12/9.93 [2019-03-28 22:37:21,499 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 19.12/9.93 [2019-03-28 22:37:21,499 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 19.12/9.93 [2019-03-28 22:37:21,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:21,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:21,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:21,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:21,561 INFO L300 LassoAnalysis]: Preprocessing complete. 19.12/9.93 [2019-03-28 22:37:21,561 INFO L412 LassoAnalysis]: Checking for nontermination... 19.12/9.93 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.12/9.93 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.12/9.93 Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:21,566 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.12/9.93 [2019-03-28 22:37:21,567 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.12/9.93 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.12/9.93 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.12/9.93 Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:21,596 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 19.12/9.93 [2019-03-28 22:37:21,597 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.12/9.93 [2019-03-28 22:37:21,634 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.12/9.93 [2019-03-28 22:37:21,634 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=-1}, {ULTIMATE.start_main_~i~0=-5}, {ULTIMATE.start_main_~i~0=7}] Lambdas: [1, 1, 1] Nus: [0, 0] 19.12/9.93 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.12/9.93 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.12/9.93 Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:21,679 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.12/9.93 [2019-03-28 22:37:21,680 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.12/9.93 [2019-03-28 22:37:21,708 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.12/9.93 [2019-03-28 22:37:21,708 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.12/9.93 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.12/9.93 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.12/9.93 Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:21,713 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.12/9.93 [2019-03-28 22:37:21,713 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.12/9.93 [2019-03-28 22:37:21,740 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.12/9.93 [2019-03-28 22:37:21,740 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.12/9.93 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.12/9.93 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.12/9.93 Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:21,744 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.12/9.93 [2019-03-28 22:37:21,745 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.12/9.93 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.12/9.93 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.12/9.93 Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:21,774 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 19.12/9.93 [2019-03-28 22:37:21,774 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.12/9.93 [2019-03-28 22:37:22,357 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 19.12/9.93 [2019-03-28 22:37:22,360 INFO L216 LassoAnalysis]: Preferences: 19.12/9.93 [2019-03-28 22:37:22,360 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 19.12/9.93 [2019-03-28 22:37:22,360 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 19.12/9.93 [2019-03-28 22:37:22,360 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 19.12/9.93 [2019-03-28 22:37:22,361 INFO L127 ssoRankerPreferences]: Use exernal solver: false 19.12/9.93 [2019-03-28 22:37:22,361 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:22,361 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 19.12/9.93 [2019-03-28 22:37:22,361 INFO L130 ssoRankerPreferences]: Path of dumped script: 19.12/9.93 [2019-03-28 22:37:22,361 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop 19.12/9.93 [2019-03-28 22:37:22,361 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 19.12/9.93 [2019-03-28 22:37:22,361 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 19.12/9.93 [2019-03-28 22:37:22,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:22,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:22,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:22,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:22,424 INFO L300 LassoAnalysis]: Preprocessing complete. 19.12/9.93 [2019-03-28 22:37:22,424 INFO L497 LassoAnalysis]: Using template 'affine'. 19.12/9.93 [2019-03-28 22:37:22,425 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 19.12/9.93 Termination analysis: LINEAR_WITH_GUESSES 19.12/9.93 Number of strict supporting invariants: 0 19.12/9.93 Number of non-strict supporting invariants: 1 19.12/9.93 Consider only non-deceasing supporting invariants: true 19.12/9.93 Simplify termination arguments: true 19.12/9.93 Simplify supporting invariants: trueOverapproximate stem: false 19.12/9.93 [2019-03-28 22:37:22,426 INFO L339 nArgumentSynthesizer]: Template has degree 0. 19.12/9.93 [2019-03-28 22:37:22,426 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 19.12/9.93 [2019-03-28 22:37:22,426 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 19.12/9.93 [2019-03-28 22:37:22,426 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 19.12/9.93 [2019-03-28 22:37:22,426 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 19.12/9.93 [2019-03-28 22:37:22,427 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 19.12/9.93 [2019-03-28 22:37:22,427 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 19.12/9.93 [2019-03-28 22:37:22,430 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 19.12/9.93 [2019-03-28 22:37:22,430 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 19.12/9.93 Termination analysis: LINEAR_WITH_GUESSES 19.12/9.93 Number of strict supporting invariants: 0 19.12/9.93 Number of non-strict supporting invariants: 1 19.12/9.93 Consider only non-deceasing supporting invariants: true 19.12/9.93 Simplify termination arguments: true 19.12/9.93 Simplify supporting invariants: trueOverapproximate stem: false 19.12/9.93 [2019-03-28 22:37:22,431 INFO L339 nArgumentSynthesizer]: Template has degree 0. 19.12/9.93 [2019-03-28 22:37:22,431 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 19.12/9.93 [2019-03-28 22:37:22,431 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 19.12/9.93 [2019-03-28 22:37:22,431 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 19.12/9.93 [2019-03-28 22:37:22,433 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 19.12/9.93 [2019-03-28 22:37:22,433 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 19.12/9.93 [2019-03-28 22:37:22,437 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 19.12/9.93 [2019-03-28 22:37:22,438 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 19.12/9.93 Termination analysis: LINEAR_WITH_GUESSES 19.12/9.93 Number of strict supporting invariants: 0 19.12/9.93 Number of non-strict supporting invariants: 1 19.12/9.93 Consider only non-deceasing supporting invariants: true 19.12/9.93 Simplify termination arguments: true 19.12/9.93 Simplify supporting invariants: trueOverapproximate stem: false 19.12/9.93 [2019-03-28 22:37:22,438 INFO L339 nArgumentSynthesizer]: Template has degree 0. 19.12/9.93 [2019-03-28 22:37:22,438 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 19.12/9.93 [2019-03-28 22:37:22,438 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 19.12/9.93 [2019-03-28 22:37:22,439 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 19.12/9.93 [2019-03-28 22:37:22,439 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 19.12/9.93 [2019-03-28 22:37:22,439 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 19.12/9.93 [2019-03-28 22:37:22,439 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 19.12/9.93 [2019-03-28 22:37:22,443 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 19.12/9.93 [2019-03-28 22:37:22,447 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. 19.12/9.93 [2019-03-28 22:37:22,447 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. 19.12/9.93 [2019-03-28 22:37:22,448 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 19.12/9.93 [2019-03-28 22:37:22,448 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 19.12/9.93 [2019-03-28 22:37:22,448 INFO L518 LassoAnalysis]: Proved termination. 19.12/9.93 [2019-03-28 22:37:22,448 INFO L520 LassoAnalysis]: Termination argument consisting of: 19.12/9.93 Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~z~0 - 1*ULTIMATE.start_main_~x~0 19.12/9.93 Supporting invariants [] 19.12/9.93 [2019-03-28 22:37:22,448 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 19.12/9.93 [2019-03-28 22:37:22,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.12/9.93 [2019-03-28 22:37:22,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 19.12/9.93 [2019-03-28 22:37:22,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core 19.12/9.93 [2019-03-28 22:37:22,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... 19.12/9.93 [2019-03-28 22:37:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 19.12/9.93 [2019-03-28 22:37:22,476 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core 19.12/9.93 [2019-03-28 22:37:22,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... 19.12/9.93 [2019-03-28 22:37:22,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 19.12/9.93 [2019-03-28 22:37:22,515 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization 19.12/9.93 [2019-03-28 22:37:22,515 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 3 loop predicates 19.12/9.93 [2019-03-28 22:37:22,515 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand 3 states. 19.12/9.93 [2019-03-28 22:37:22,528 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 16 states and 20 transitions. Complement of second has 4 states. 19.12/9.93 [2019-03-28 22:37:22,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states 19.12/9.93 [2019-03-28 22:37:22,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 19.12/9.93 [2019-03-28 22:37:22,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. 19.12/9.93 [2019-03-28 22:37:22,530 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. 19.12/9.93 [2019-03-28 22:37:22,530 INFO L116 BuchiAccepts]: Finished buchiAccepts. 19.12/9.93 [2019-03-28 22:37:22,530 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. 19.12/9.93 [2019-03-28 22:37:22,531 INFO L116 BuchiAccepts]: Finished buchiAccepts. 19.12/9.93 [2019-03-28 22:37:22,531 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. 19.12/9.93 [2019-03-28 22:37:22,531 INFO L116 BuchiAccepts]: Finished buchiAccepts. 19.12/9.93 [2019-03-28 22:37:22,532 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. 19.12/9.93 [2019-03-28 22:37:22,533 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 19.12/9.93 [2019-03-28 22:37:22,534 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 16 transitions. 19.12/9.93 [2019-03-28 22:37:22,534 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 19.12/9.93 [2019-03-28 22:37:22,534 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 19.12/9.93 [2019-03-28 22:37:22,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. 19.12/9.93 [2019-03-28 22:37:22,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 19.12/9.93 [2019-03-28 22:37:22,535 INFO L706 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. 19.12/9.93 [2019-03-28 22:37:22,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. 19.12/9.93 [2019-03-28 22:37:22,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 7. 19.12/9.93 [2019-03-28 22:37:22,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. 19.12/9.93 [2019-03-28 22:37:22,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. 19.12/9.93 [2019-03-28 22:37:22,536 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. 19.12/9.93 [2019-03-28 22:37:22,536 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. 19.12/9.93 [2019-03-28 22:37:22,536 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ 19.12/9.93 [2019-03-28 22:37:22,537 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. 19.12/9.93 [2019-03-28 22:37:22,537 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 19.12/9.93 [2019-03-28 22:37:22,537 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 19.12/9.93 [2019-03-28 22:37:22,537 INFO L119 BuchiIsEmpty]: Starting construction of run 19.12/9.93 [2019-03-28 22:37:22,538 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] 19.12/9.93 [2019-03-28 22:37:22,538 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] 19.12/9.93 [2019-03-28 22:37:22,538 INFO L794 eck$LassoCheckResult]: Stem: 202#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_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_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet3_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_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 203#L21-2 [31] L21-2-->L21: Formula: (and (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 204#L21 [34] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_7 (+ v_ULTIMATE.start_main_~z~0_8 1)) (>= v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~z~0_8)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 205#L21-2 [31] L21-2-->L21: Formula: (and (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 199#L21 19.12/9.93 [2019-03-28 22:37:22,538 INFO L796 eck$LassoCheckResult]: Loop: 199#L21 [24] L21-->L21-2: Formula: (and (< v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~z~0_6) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 200#L21-2 [31] L21-2-->L21: Formula: (and (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 204#L21 [34] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_7 (+ v_ULTIMATE.start_main_~z~0_8 1)) (>= v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~z~0_8)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 205#L21-2 [31] L21-2-->L21: Formula: (and (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 199#L21 19.12/9.93 [2019-03-28 22:37:22,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.12/9.93 [2019-03-28 22:37:22,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1728963, now seen corresponding path program 3 times 19.12/9.93 [2019-03-28 22:37:22,539 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 19.12/9.93 [2019-03-28 22:37:22,539 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 19.12/9.93 [2019-03-28 22:37:22,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:22,541 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:22,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:22,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.12/9.93 [2019-03-28 22:37:22,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1669381, now seen corresponding path program 1 times 19.12/9.93 [2019-03-28 22:37:22,548 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 19.12/9.93 [2019-03-28 22:37:22,548 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 19.12/9.93 [2019-03-28 22:37:22,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:22,551 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:22,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:22,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.12/9.93 [2019-03-28 22:37:22,557 INFO L82 PathProgramCache]: Analyzing trace with hash -993449529, now seen corresponding path program 3 times 19.12/9.93 [2019-03-28 22:37:22,558 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 19.12/9.93 [2019-03-28 22:37:22,558 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 19.12/9.93 [2019-03-28 22:37:22,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:22,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:22,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.12/9.93 [2019-03-28 22:37:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.12/9.93 [2019-03-28 22:37:22,601 INFO L216 LassoAnalysis]: Preferences: 19.12/9.93 [2019-03-28 22:37:22,601 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 19.12/9.93 [2019-03-28 22:37:22,602 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 19.12/9.93 [2019-03-28 22:37:22,602 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 19.12/9.93 [2019-03-28 22:37:22,602 INFO L127 ssoRankerPreferences]: Use exernal solver: true 19.12/9.93 [2019-03-28 22:37:22,602 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:22,602 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 19.12/9.93 [2019-03-28 22:37:22,602 INFO L130 ssoRankerPreferences]: Path of dumped script: 19.12/9.93 [2019-03-28 22:37:22,602 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop 19.12/9.93 [2019-03-28 22:37:22,602 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 19.12/9.93 [2019-03-28 22:37:22,603 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 19.12/9.93 [2019-03-28 22:37:22,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:22,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:22,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:22,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:22,683 INFO L300 LassoAnalysis]: Preprocessing complete. 19.12/9.93 [2019-03-28 22:37:22,683 INFO L412 LassoAnalysis]: Checking for nontermination... 19.12/9.93 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.12/9.93 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.12/9.93 Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:22,686 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.12/9.93 [2019-03-28 22:37:22,686 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.12/9.93 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.12/9.93 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.12/9.93 Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:22,716 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 19.12/9.93 [2019-03-28 22:37:22,716 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.12/9.93 [2019-03-28 22:37:23,248 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 19.12/9.93 [2019-03-28 22:37:23,250 INFO L216 LassoAnalysis]: Preferences: 19.12/9.93 [2019-03-28 22:37:23,250 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 19.12/9.93 [2019-03-28 22:37:23,250 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 19.12/9.93 [2019-03-28 22:37:23,250 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 19.12/9.93 [2019-03-28 22:37:23,250 INFO L127 ssoRankerPreferences]: Use exernal solver: false 19.12/9.93 [2019-03-28 22:37:23,250 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 19.12/9.93 [2019-03-28 22:37:23,251 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 19.12/9.93 [2019-03-28 22:37:23,251 INFO L130 ssoRankerPreferences]: Path of dumped script: 19.12/9.93 [2019-03-28 22:37:23,251 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop 19.12/9.93 [2019-03-28 22:37:23,251 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 19.12/9.93 [2019-03-28 22:37:23,251 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 19.12/9.93 [2019-03-28 22:37:23,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:23,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:23,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:23,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.12/9.93 [2019-03-28 22:37:23,342 INFO L300 LassoAnalysis]: Preprocessing complete. 19.12/9.93 [2019-03-28 22:37:23,343 INFO L497 LassoAnalysis]: Using template 'affine'. 19.12/9.93 [2019-03-28 22:37:23,343 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 19.12/9.93 Termination analysis: LINEAR_WITH_GUESSES 19.12/9.93 Number of strict supporting invariants: 0 19.12/9.93 Number of non-strict supporting invariants: 1 19.12/9.93 Consider only non-deceasing supporting invariants: true 19.12/9.93 Simplify termination arguments: true 19.12/9.93 Simplify supporting invariants: trueOverapproximate stem: false 19.12/9.93 [2019-03-28 22:37:23,344 INFO L339 nArgumentSynthesizer]: Template has degree 0. 19.12/9.93 [2019-03-28 22:37:23,344 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 19.12/9.93 [2019-03-28 22:37:23,344 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 19.12/9.93 [2019-03-28 22:37:23,344 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 19.12/9.93 [2019-03-28 22:37:23,346 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 19.12/9.93 [2019-03-28 22:37:23,346 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 19.12/9.93 [2019-03-28 22:37:23,349 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 19.12/9.93 [2019-03-28 22:37:23,349 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 19.12/9.93 Termination analysis: LINEAR_WITH_GUESSES 19.12/9.93 Number of strict supporting invariants: 0 19.12/9.93 Number of non-strict supporting invariants: 1 19.12/9.93 Consider only non-deceasing supporting invariants: true 19.12/9.93 Simplify termination arguments: true 19.12/9.93 Simplify supporting invariants: trueOverapproximate stem: false 19.12/9.93 [2019-03-28 22:37:23,349 INFO L339 nArgumentSynthesizer]: Template has degree 0. 19.12/9.93 [2019-03-28 22:37:23,350 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 19.12/9.93 [2019-03-28 22:37:23,350 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 19.12/9.93 [2019-03-28 22:37:23,350 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 19.12/9.93 [2019-03-28 22:37:23,350 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 19.12/9.93 [2019-03-28 22:37:23,351 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 19.12/9.93 [2019-03-28 22:37:23,351 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 19.12/9.93 [2019-03-28 22:37:23,355 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 19.12/9.93 [2019-03-28 22:37:23,358 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 19.12/9.93 [2019-03-28 22:37:23,359 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. 19.12/9.93 [2019-03-28 22:37:23,359 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 19.12/9.93 [2019-03-28 22:37:23,359 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 19.12/9.93 [2019-03-28 22:37:23,359 INFO L518 LassoAnalysis]: Proved termination. 19.12/9.93 [2019-03-28 22:37:23,360 INFO L520 LassoAnalysis]: Termination argument consisting of: 19.12/9.93 Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~z~0 + 1*ULTIMATE.start_main_~y~0 19.12/9.93 Supporting invariants [] 19.12/9.93 [2019-03-28 22:37:23,360 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 19.12/9.93 [2019-03-28 22:37:23,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.12/9.93 [2019-03-28 22:37:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 19.12/9.93 [2019-03-28 22:37:23,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core 19.12/9.93 [2019-03-28 22:37:23,378 INFO L279 TraceCheckSpWp]: Computing forward predicates... 19.12/9.93 [2019-03-28 22:37:23,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 19.12/9.93 [2019-03-28 22:37:23,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core 19.12/9.93 [2019-03-28 22:37:23,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... 19.12/9.93 [2019-03-28 22:37:23,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 19.12/9.93 [2019-03-28 22:37:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 19.12/9.93 [2019-03-28 22:37:23,438 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core 19.12/9.93 [2019-03-28 22:37:23,438 INFO L279 TraceCheckSpWp]: Computing forward predicates... 19.12/9.93 [2019-03-28 22:37:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 19.12/9.93 [2019-03-28 22:37:23,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core 19.12/9.93 [2019-03-28 22:37:23,493 INFO L279 TraceCheckSpWp]: Computing forward predicates... 19.12/9.93 [2019-03-28 22:37:23,498 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 6 predicates after loop cannibalization 19.12/9.93 [2019-03-28 22:37:23,510 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 6 loop predicates 19.12/9.93 [2019-03-28 22:37:23,511 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 4 Second operand 5 states. 19.12/9.93 [2019-03-28 22:37:23,552 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 4. Second operand 5 states. Result 21 states and 29 transitions. Complement of second has 7 states. 19.12/9.93 [2019-03-28 22:37:23,552 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 19.12/9.93 [2019-03-28 22:37:23,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. 19.12/9.93 [2019-03-28 22:37:23,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. 19.12/9.93 [2019-03-28 22:37:23,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 4 letters. Loop has 4 letters. 19.12/9.93 [2019-03-28 22:37:23,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. 19.12/9.93 [2019-03-28 22:37:23,554 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 8 letters. Loop has 4 letters. 19.12/9.93 [2019-03-28 22:37:23,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. 19.12/9.93 [2019-03-28 22:37:23,554 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 4 letters. Loop has 8 letters. 19.12/9.93 [2019-03-28 22:37:23,555 INFO L116 BuchiAccepts]: Finished buchiAccepts. 19.12/9.93 [2019-03-28 22:37:23,556 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 29 transitions. 19.12/9.93 [2019-03-28 22:37:23,557 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 19.12/9.93 [2019-03-28 22:37:23,558 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. 19.12/9.93 [2019-03-28 22:37:23,558 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 19.12/9.93 [2019-03-28 22:37:23,558 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 19.12/9.93 [2019-03-28 22:37:23,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. 19.12/9.93 [2019-03-28 22:37:23,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 19.12/9.93 [2019-03-28 22:37:23,558 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 19.12/9.93 [2019-03-28 22:37:23,558 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 19.12/9.93 [2019-03-28 22:37:23,558 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 19.12/9.93 [2019-03-28 22:37:23,559 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ 19.12/9.93 [2019-03-28 22:37:23,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. 19.12/9.93 [2019-03-28 22:37:23,559 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 19.12/9.93 [2019-03-28 22:37:23,559 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true 19.12/9.93 [2019-03-28 22:37:23,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:37:23 BasicIcfg 19.12/9.93 [2019-03-28 22:37:23,565 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 19.12/9.93 [2019-03-28 22:37:23,566 INFO L168 Benchmark]: Toolchain (without parser) took 5383.12 ms. Allocated memory was 649.6 MB in the beginning and 752.9 MB in the end (delta: 103.3 MB). Free memory was 558.5 MB in the beginning and 574.2 MB in the end (delta: -15.8 MB). Peak memory consumption was 87.5 MB. Max. memory is 50.3 GB. 19.12/9.93 [2019-03-28 22:37:23,568 INFO L168 Benchmark]: CDTParser took 0.40 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. 19.12/9.93 [2019-03-28 22:37:23,568 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.88 ms. Allocated memory is still 649.6 MB. Free memory was 558.5 MB in the beginning and 549.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. 19.12/9.93 [2019-03-28 22:37:23,569 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.62 ms. Allocated memory was 649.6 MB in the beginning and 676.9 MB in the end (delta: 27.3 MB). Free memory was 549.0 MB in the beginning and 643.2 MB in the end (delta: -94.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 50.3 GB. 19.12/9.93 [2019-03-28 22:37:23,569 INFO L168 Benchmark]: Boogie Preprocessor took 19.91 ms. Allocated memory is still 676.9 MB. Free memory was 643.2 MB in the beginning and 641.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 50.3 GB. 19.12/9.93 [2019-03-28 22:37:23,570 INFO L168 Benchmark]: RCFGBuilder took 192.39 ms. Allocated memory is still 676.9 MB. Free memory was 641.4 MB in the beginning and 627.1 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. 19.12/9.93 [2019-03-28 22:37:23,571 INFO L168 Benchmark]: BlockEncodingV2 took 74.16 ms. Allocated memory is still 676.9 MB. Free memory was 627.1 MB in the beginning and 623.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. 19.12/9.93 [2019-03-28 22:37:23,571 INFO L168 Benchmark]: TraceAbstraction took 162.23 ms. Allocated memory is still 676.9 MB. Free memory was 621.7 MB in the beginning and 613.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. 19.12/9.93 [2019-03-28 22:37:23,572 INFO L168 Benchmark]: BuchiAutomizer took 4590.57 ms. Allocated memory was 676.9 MB in the beginning and 752.9 MB in the end (delta: 76.0 MB). Free memory was 613.6 MB in the beginning and 574.2 MB in the end (delta: 39.4 MB). Peak memory consumption was 115.4 MB. Max. memory is 50.3 GB. 19.12/9.93 [2019-03-28 22:37:23,576 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 19.12/9.93 --- Results --- 19.12/9.93 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 19.12/9.93 - StatisticsResult: Initial Icfg 19.12/9.93 7 locations, 9 edges 19.12/9.93 - StatisticsResult: Encoded RCFG 19.12/9.93 3 locations, 4 edges 19.12/9.93 * Results from de.uni_freiburg.informatik.ultimate.core: 19.12/9.93 - StatisticsResult: Toolchain Benchmarks 19.12/9.93 Benchmark results are: 19.12/9.93 * CDTParser took 0.40 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. 19.12/9.93 * CACSL2BoogieTranslator took 235.88 ms. Allocated memory is still 649.6 MB. Free memory was 558.5 MB in the beginning and 549.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. 19.12/9.93 * Boogie Procedure Inliner took 102.62 ms. Allocated memory was 649.6 MB in the beginning and 676.9 MB in the end (delta: 27.3 MB). Free memory was 549.0 MB in the beginning and 643.2 MB in the end (delta: -94.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 50.3 GB. 19.12/9.93 * Boogie Preprocessor took 19.91 ms. Allocated memory is still 676.9 MB. Free memory was 643.2 MB in the beginning and 641.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 50.3 GB. 19.12/9.93 * RCFGBuilder took 192.39 ms. Allocated memory is still 676.9 MB. Free memory was 641.4 MB in the beginning and 627.1 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. 19.12/9.93 * BlockEncodingV2 took 74.16 ms. Allocated memory is still 676.9 MB. Free memory was 627.1 MB in the beginning and 623.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. 19.12/9.93 * TraceAbstraction took 162.23 ms. Allocated memory is still 676.9 MB. Free memory was 621.7 MB in the beginning and 613.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. 19.12/9.93 * BuchiAutomizer took 4590.57 ms. Allocated memory was 676.9 MB in the beginning and 752.9 MB in the end (delta: 76.0 MB). Free memory was 613.6 MB in the beginning and 574.2 MB in the end (delta: 39.4 MB). Peak memory consumption was 115.4 MB. Max. memory is 50.3 GB. 19.12/9.93 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 19.12/9.93 - AllSpecificationsHoldResult: All specifications hold 19.12/9.93 We were not able to verify any specifiation because the program does not contain any specification. 19.12/9.93 - InvariantResult [Line: 19]: Loop Invariant 19.12/9.93 Derived loop invariant: 1 19.12/9.93 - StatisticsResult: Ultimate Automizer benchmark data 19.12/9.93 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 19.12/9.93 - StatisticsResult: Constructed decomposition of program 19.12/9.93 Your program was decomposed into 5 terminating modules (0 trivial, 0 deterministic, 5 nondeterministic). One nondeterministic module has affine ranking function -2 * z + 2 * x + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * x + -2 * z + 1 and consists of 3 locations. One nondeterministic module has affine ranking function z + -1 * x and consists of 3 locations. One nondeterministic module has affine ranking function z + -1 * x and consists of 3 locations. One nondeterministic module has affine ranking function -1 * z + y and consists of 4 locations. 19.12/9.93 - StatisticsResult: Timing statistics 19.12/9.93 BüchiAutomizer plugin needed 4.5s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 3.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 3. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 15 SDtfs, 25 SDslu, 0 SDs, 0 SdLazy, 49 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax162 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq148 hnf94 smp96 dnf100 smp100 tf110 neg100 sie114 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: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.5s 19.12/9.93 - TerminationAnalysisResult: Termination proven 19.12/9.93 Buchi Automizer proved that your program is terminating 19.12/9.93 RESULT: Ultimate proved your program to be correct! 19.12/9.93 !SESSION 2019-03-28 22:37:14.866 ----------------------------------------------- 19.12/9.93 eclipse.buildId=unknown 19.12/9.93 java.version=1.8.0_181 19.12/9.93 java.vendor=Oracle Corporation 19.12/9.93 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 19.12/9.93 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c 19.12/9.93 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 19.12/9.93 19.12/9.93 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 22:37:23.811 19.12/9.93 !MESSAGE The workspace will exit with unsaved changes in this session. 19.12/9.93 Received shutdown request... 19.12/9.93 Ultimate: 19.12/9.93 GTK+ Version Check 19.12/9.93 EOF