18.31/9.64 YES 18.31/9.64 18.31/9.64 Ultimate: Cannot open display: 18.31/9.64 This is Ultimate 0.1.24-8dc7c08-m 18.31/9.64 [2019-03-28 22:55:18,529 INFO L170 SettingsManager]: Resetting all preferences to default values... 18.31/9.64 [2019-03-28 22:55:18,531 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 18.31/9.64 [2019-03-28 22:55:18,543 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 18.31/9.64 [2019-03-28 22:55:18,543 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 18.31/9.64 [2019-03-28 22:55:18,544 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 18.31/9.64 [2019-03-28 22:55:18,545 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 18.31/9.64 [2019-03-28 22:55:18,547 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 18.31/9.64 [2019-03-28 22:55:18,548 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 18.31/9.64 [2019-03-28 22:55:18,549 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 18.31/9.64 [2019-03-28 22:55:18,550 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 18.31/9.64 [2019-03-28 22:55:18,550 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 18.31/9.64 [2019-03-28 22:55:18,551 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 18.31/9.64 [2019-03-28 22:55:18,552 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 18.31/9.64 [2019-03-28 22:55:18,553 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 18.31/9.64 [2019-03-28 22:55:18,554 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 18.31/9.64 [2019-03-28 22:55:18,555 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 18.31/9.64 [2019-03-28 22:55:18,556 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 18.31/9.64 [2019-03-28 22:55:18,558 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 18.31/9.64 [2019-03-28 22:55:18,560 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 18.31/9.64 [2019-03-28 22:55:18,561 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 18.31/9.64 [2019-03-28 22:55:18,562 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 18.31/9.64 [2019-03-28 22:55:18,564 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 18.31/9.64 [2019-03-28 22:55:18,565 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 18.31/9.64 [2019-03-28 22:55:18,565 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 18.31/9.64 [2019-03-28 22:55:18,566 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 18.31/9.64 [2019-03-28 22:55:18,566 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 18.31/9.64 [2019-03-28 22:55:18,567 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 18.31/9.64 [2019-03-28 22:55:18,567 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 18.31/9.64 [2019-03-28 22:55:18,568 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 18.31/9.64 [2019-03-28 22:55:18,569 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 18.31/9.64 [2019-03-28 22:55:18,569 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 18.31/9.64 [2019-03-28 22:55:18,570 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 18.31/9.64 [2019-03-28 22:55:18,570 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 18.31/9.64 [2019-03-28 22:55:18,571 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 18.31/9.64 [2019-03-28 22:55:18,571 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 18.31/9.64 [2019-03-28 22:55:18,571 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 18.31/9.64 [2019-03-28 22:55:18,572 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 18.31/9.64 [2019-03-28 22:55:18,573 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 18.31/9.64 [2019-03-28 22:55:18,573 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf 18.31/9.64 [2019-03-28 22:55:18,588 INFO L110 SettingsManager]: Loading preferences was successful 18.31/9.64 [2019-03-28 22:55:18,589 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 18.31/9.64 [2019-03-28 22:55:18,590 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 18.31/9.64 [2019-03-28 22:55:18,590 INFO L133 SettingsManager]: * Rewrite not-equals=true 18.31/9.64 [2019-03-28 22:55:18,590 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 18.31/9.64 [2019-03-28 22:55:18,590 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 18.31/9.64 [2019-03-28 22:55:18,590 INFO L133 SettingsManager]: * Use SBE=true 18.31/9.64 [2019-03-28 22:55:18,591 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 18.31/9.64 [2019-03-28 22:55:18,591 INFO L133 SettingsManager]: * Use old map elimination=false 18.31/9.64 [2019-03-28 22:55:18,591 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 18.31/9.64 [2019-03-28 22:55:18,591 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 18.31/9.64 [2019-03-28 22:55:18,591 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 18.31/9.64 [2019-03-28 22:55:18,592 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 18.31/9.64 [2019-03-28 22:55:18,592 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 18.31/9.64 [2019-03-28 22:55:18,592 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.64 [2019-03-28 22:55:18,592 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 18.31/9.64 [2019-03-28 22:55:18,592 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 18.31/9.64 [2019-03-28 22:55:18,593 INFO L133 SettingsManager]: * Check division by zero=IGNORE 18.31/9.64 [2019-03-28 22:55:18,593 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 18.31/9.64 [2019-03-28 22:55:18,593 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 18.31/9.64 [2019-03-28 22:55:18,593 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 18.31/9.64 [2019-03-28 22:55:18,593 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 18.31/9.64 [2019-03-28 22:55:18,594 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 18.31/9.64 [2019-03-28 22:55:18,594 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 18.31/9.64 [2019-03-28 22:55:18,594 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 18.31/9.64 [2019-03-28 22:55:18,594 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 18.31/9.64 [2019-03-28 22:55:18,594 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 18.31/9.64 [2019-03-28 22:55:18,595 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 18.31/9.64 [2019-03-28 22:55:18,595 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 18.31/9.64 [2019-03-28 22:55:18,621 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 18.31/9.64 [2019-03-28 22:55:18,634 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 18.31/9.64 [2019-03-28 22:55:18,638 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 18.31/9.64 [2019-03-28 22:55:18,639 INFO L271 PluginConnector]: Initializing CDTParser... 18.31/9.64 [2019-03-28 22:55:18,639 INFO L276 PluginConnector]: CDTParser initialized 18.31/9.64 [2019-03-28 22:55:18,640 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c 18.31/9.64 [2019-03-28 22:55:18,700 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/5c30a6bb914c4ea8b23879633799d2ca/FLAG4f52b5abf 18.31/9.64 [2019-03-28 22:55:19,035 INFO L307 CDTParser]: Found 1 translation units. 18.31/9.64 [2019-03-28 22:55:19,035 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c 18.31/9.64 [2019-03-28 22:55:19,042 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/5c30a6bb914c4ea8b23879633799d2ca/FLAG4f52b5abf 18.31/9.64 [2019-03-28 22:55:19,469 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/5c30a6bb914c4ea8b23879633799d2ca 18.31/9.64 [2019-03-28 22:55:19,480 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 18.31/9.64 [2019-03-28 22:55:19,482 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 18.31/9.64 [2019-03-28 22:55:19,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 18.31/9.64 [2019-03-28 22:55:19,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 18.31/9.64 [2019-03-28 22:55:19,487 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 18.31/9.64 [2019-03-28 22:55:19,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 10:55:19" (1/1) ... 18.31/9.64 [2019-03-28 22:55:19,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@444b6063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:55:19, skipping insertion in model container 18.31/9.64 [2019-03-28 22:55:19,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 10:55:19" (1/1) ... 18.31/9.64 [2019-03-28 22:55:19,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 18.31/9.64 [2019-03-28 22:55:19,518 INFO L176 MainTranslator]: Built tables and reachable declarations 18.31/9.64 [2019-03-28 22:55:19,675 INFO L206 PostProcessor]: Analyzing one entry point: main 18.31/9.64 [2019-03-28 22:55:19,679 INFO L191 MainTranslator]: Completed pre-run 18.31/9.64 [2019-03-28 22:55:19,697 INFO L206 PostProcessor]: Analyzing one entry point: main 18.31/9.64 [2019-03-28 22:55:19,712 INFO L195 MainTranslator]: Completed translation 18.31/9.64 [2019-03-28 22:55:19,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:55:19 WrapperNode 18.31/9.64 [2019-03-28 22:55:19,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 18.31/9.64 [2019-03-28 22:55:19,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 18.31/9.64 [2019-03-28 22:55:19,714 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 18.31/9.64 [2019-03-28 22:55:19,714 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 18.31/9.64 [2019-03-28 22:55:19,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:55:19" (1/1) ... 18.31/9.64 [2019-03-28 22:55:19,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:55:19" (1/1) ... 18.31/9.64 [2019-03-28 22:55:19,812 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 18.31/9.64 [2019-03-28 22:55:19,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 18.31/9.64 [2019-03-28 22:55:19,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 18.31/9.64 [2019-03-28 22:55:19,813 INFO L276 PluginConnector]: Boogie Preprocessor initialized 18.31/9.64 [2019-03-28 22:55:19,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:55:19" (1/1) ... 18.31/9.64 [2019-03-28 22:55:19,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:55:19" (1/1) ... 18.31/9.64 [2019-03-28 22:55:19,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:55:19" (1/1) ... 18.31/9.64 [2019-03-28 22:55:19,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:55:19" (1/1) ... 18.31/9.64 [2019-03-28 22:55:19,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:55:19" (1/1) ... 18.31/9.64 [2019-03-28 22:55:19,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:55:19" (1/1) ... 18.31/9.64 [2019-03-28 22:55:19,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:55:19" (1/1) ... 18.31/9.64 [2019-03-28 22:55:19,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 18.31/9.64 [2019-03-28 22:55:19,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 18.31/9.64 [2019-03-28 22:55:19,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... 18.31/9.64 [2019-03-28 22:55:19,834 INFO L276 PluginConnector]: RCFGBuilder initialized 18.31/9.64 [2019-03-28 22:55:19,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:55:19" (1/1) ... 18.31/9.64 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 18.31/9.64 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 18.31/9.64 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 18.31/9.64 [2019-03-28 22:55:19,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 18.31/9.64 [2019-03-28 22:55:19,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 18.31/9.64 [2019-03-28 22:55:20,047 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 18.31/9.64 [2019-03-28 22:55:20,048 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. 18.31/9.64 [2019-03-28 22:55:20,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:55:20 BoogieIcfgContainer 18.31/9.64 [2019-03-28 22:55:20,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 18.31/9.64 [2019-03-28 22:55:20,050 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 18.31/9.64 [2019-03-28 22:55:20,050 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 18.31/9.64 [2019-03-28 22:55:20,053 INFO L276 PluginConnector]: BlockEncodingV2 initialized 18.31/9.64 [2019-03-28 22:55:20,054 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:55:20" (1/1) ... 18.31/9.64 [2019-03-28 22:55:20,070 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges 18.31/9.64 [2019-03-28 22:55:20,071 INFO L258 BlockEncoder]: Using Remove infeasible edges 18.31/9.64 [2019-03-28 22:55:20,072 INFO L263 BlockEncoder]: Using Maximize final states 18.31/9.64 [2019-03-28 22:55:20,073 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 18.31/9.64 [2019-03-28 22:55:20,073 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 18.31/9.64 [2019-03-28 22:55:20,075 INFO L296 BlockEncoder]: Using Remove sink states 18.31/9.64 [2019-03-28 22:55:20,076 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 18.31/9.64 [2019-03-28 22:55:20,076 INFO L179 BlockEncoder]: Using Rewrite not-equals 18.31/9.64 [2019-03-28 22:55:20,095 INFO L185 BlockEncoder]: Using Use SBE 18.31/9.64 [2019-03-28 22:55:20,112 INFO L200 BlockEncoder]: SBE split 2 edges 18.31/9.64 [2019-03-28 22:55:20,117 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility 18.31/9.64 [2019-03-28 22:55:20,118 INFO L71 MaximizeFinalStates]: 0 new accepting states 18.31/9.64 [2019-03-28 22:55:20,134 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding 18.31/9.64 [2019-03-28 22:55:20,136 INFO L70 RemoveSinkStates]: Removed 5 edges and 2 locations by removing sink states 18.31/9.64 [2019-03-28 22:55:20,137 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 18.31/9.64 [2019-03-28 22:55:20,137 INFO L71 MaximizeFinalStates]: 0 new accepting states 18.31/9.64 [2019-03-28 22:55:20,143 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding 18.31/9.64 [2019-03-28 22:55:20,144 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 18.31/9.64 [2019-03-28 22:55:20,144 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 18.31/9.64 [2019-03-28 22:55:20,144 INFO L71 MaximizeFinalStates]: 0 new accepting states 18.31/9.64 [2019-03-28 22:55:20,144 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 18.31/9.64 [2019-03-28 22:55:20,145 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 18.31/9.64 [2019-03-28 22:55:20,145 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 3 edges 18.31/9.64 [2019-03-28 22:55:20,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:55:20 BasicIcfg 18.31/9.64 [2019-03-28 22:55:20,146 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 18.31/9.64 [2019-03-28 22:55:20,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 18.31/9.64 [2019-03-28 22:55:20,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... 18.31/9.64 [2019-03-28 22:55:20,150 INFO L276 PluginConnector]: TraceAbstraction initialized 18.31/9.64 [2019-03-28 22:55:20,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 10:55:19" (1/4) ... 18.31/9.64 [2019-03-28 22:55:20,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de1a73e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 10:55:20, skipping insertion in model container 18.31/9.64 [2019-03-28 22:55:20,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:55:19" (2/4) ... 18.31/9.64 [2019-03-28 22:55:20,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de1a73e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 10:55:20, skipping insertion in model container 18.31/9.64 [2019-03-28 22:55:20,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:55:20" (3/4) ... 18.31/9.64 [2019-03-28 22:55:20,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de1a73e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:55:20, skipping insertion in model container 18.31/9.64 [2019-03-28 22:55:20,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:55:20" (4/4) ... 18.31/9.64 [2019-03-28 22:55:20,154 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 18.31/9.64 [2019-03-28 22:55:20,164 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 18.31/9.64 [2019-03-28 22:55:20,172 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. 18.31/9.64 [2019-03-28 22:55:20,189 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. 18.31/9.64 [2019-03-28 22:55:20,217 INFO L133 ementStrategyFactory]: Using default assertion order modulation 18.31/9.64 [2019-03-28 22:55:20,218 INFO L382 AbstractCegarLoop]: Interprodecural is true 18.31/9.64 [2019-03-28 22:55:20,218 INFO L383 AbstractCegarLoop]: Hoare is true 18.31/9.64 [2019-03-28 22:55:20,219 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 18.31/9.64 [2019-03-28 22:55:20,219 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 18.31/9.64 [2019-03-28 22:55:20,219 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 18.31/9.64 [2019-03-28 22:55:20,219 INFO L387 AbstractCegarLoop]: Difference is false 18.31/9.64 [2019-03-28 22:55:20,219 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 18.31/9.64 [2019-03-28 22:55:20,219 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 18.31/9.64 [2019-03-28 22:55:20,233 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. 18.31/9.64 [2019-03-28 22:55:20,239 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. 18.31/9.64 [2019-03-28 22:55:20,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. 18.31/9.64 [2019-03-28 22:55:20,293 INFO L451 ceAbstractionStarter]: At program point L19-2(lines 19 22) the Hoare annotation is: true 18.31/9.64 [2019-03-28 22:55:20,294 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. 18.31/9.64 [2019-03-28 22:55:20,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:55:20 BasicIcfg 18.31/9.64 [2019-03-28 22:55:20,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 18.31/9.64 [2019-03-28 22:55:20,303 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 18.31/9.64 [2019-03-28 22:55:20,303 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 18.31/9.64 [2019-03-28 22:55:20,306 INFO L276 PluginConnector]: BuchiAutomizer initialized 18.31/9.64 [2019-03-28 22:55:20,307 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 18.31/9.64 [2019-03-28 22:55:20,307 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.03 10:55:19" (1/5) ... 18.31/9.64 [2019-03-28 22:55:20,308 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4556a2bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 10:55:20, skipping insertion in model container 18.31/9.64 [2019-03-28 22:55:20,308 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 18.31/9.64 [2019-03-28 22:55:20,308 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:55:19" (2/5) ... 18.31/9.64 [2019-03-28 22:55:20,309 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4556a2bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 10:55:20, skipping insertion in model container 18.31/9.64 [2019-03-28 22:55:20,309 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 18.31/9.64 [2019-03-28 22:55:20,309 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:55:20" (3/5) ... 18.31/9.64 [2019-03-28 22:55:20,309 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4556a2bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:55:20, skipping insertion in model container 18.31/9.64 [2019-03-28 22:55:20,310 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 18.31/9.64 [2019-03-28 22:55:20,310 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:55:20" (4/5) ... 18.31/9.64 [2019-03-28 22:55:20,310 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4556a2bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:55:20, skipping insertion in model container 18.31/9.64 [2019-03-28 22:55:20,310 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 18.31/9.64 [2019-03-28 22:55:20,310 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:55:20" (5/5) ... 18.31/9.64 [2019-03-28 22:55:20,312 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 18.31/9.64 [2019-03-28 22:55:20,339 INFO L133 ementStrategyFactory]: Using default assertion order modulation 18.31/9.64 [2019-03-28 22:55:20,340 INFO L374 BuchiCegarLoop]: Interprodecural is true 18.31/9.64 [2019-03-28 22:55:20,340 INFO L375 BuchiCegarLoop]: Hoare is true 18.31/9.64 [2019-03-28 22:55:20,340 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates 18.31/9.64 [2019-03-28 22:55:20,340 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE 18.31/9.64 [2019-03-28 22:55:20,340 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION 18.31/9.64 [2019-03-28 22:55:20,340 INFO L379 BuchiCegarLoop]: Difference is false 18.31/9.64 [2019-03-28 22:55:20,341 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA 18.31/9.64 [2019-03-28 22:55:20,341 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== 18.31/9.64 [2019-03-28 22:55:20,344 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. 18.31/9.64 [2019-03-28 22:55:20,361 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 18.31/9.64 [2019-03-28 22:55:20,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 18.31/9.64 [2019-03-28 22:55:20,362 INFO L119 BuchiIsEmpty]: Starting construction of run 18.31/9.64 [2019-03-28 22:55:20,367 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 18.31/9.64 [2019-03-28 22:55:20,368 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 18.31/9.64 [2019-03-28 22:55:20,368 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ 18.31/9.64 [2019-03-28 22:55:20,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. 18.31/9.64 [2019-03-28 22:55:20,369 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 18.31/9.64 [2019-03-28 22:55:20,369 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 18.31/9.64 [2019-03-28 22:55:20,369 INFO L119 BuchiIsEmpty]: Starting construction of run 18.31/9.64 [2019-03-28 22:55:20,369 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 18.31/9.64 [2019-03-28 22:55:20,369 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 18.31/9.64 [2019-03-28 22:55:20,374 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [42] ULTIMATE.startENTRY-->L19-2: Formula: (and (= (+ v_ULTIMATE.start_main_~b~0_9 1) v_ULTIMATE.start_main_~a~0_9) (< v_ULTIMATE.start_main_~x~0_11 0)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 4#L19-2true 18.31/9.64 [2019-03-28 22:55:20,375 INFO L796 eck$LassoCheckResult]: Loop: 4#L19-2true [38] L19-2-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 (+ (* (- 1) v_ULTIMATE.start_main_~a~0_8) v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~b~0_8 (- 1))) (<= 0 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~a~0_8 (* (- 1) v_ULTIMATE.start_main_~b~0_8) (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 4#L19-2true 18.31/9.64 [2019-03-28 22:55:20,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 18.31/9.64 [2019-03-28 22:55:20,384 INFO L82 PathProgramCache]: Analyzing trace with hash 73, now seen corresponding path program 1 times 18.31/9.64 [2019-03-28 22:55:20,386 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 18.31/9.64 [2019-03-28 22:55:20,387 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 18.31/9.64 [2019-03-28 22:55:20,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 18.31/9.64 [2019-03-28 22:55:20,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 18.31/9.64 [2019-03-28 22:55:20,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 18.31/9.64 [2019-03-28 22:55:20,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 18.31/9.64 [2019-03-28 22:55:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 18.31/9.64 [2019-03-28 22:55:20,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 18.31/9.64 [2019-03-28 22:55:20,458 INFO L82 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 1 times 18.31/9.64 [2019-03-28 22:55:20,458 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 18.31/9.64 [2019-03-28 22:55:20,458 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 18.31/9.64 [2019-03-28 22:55:20,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 18.31/9.64 [2019-03-28 22:55:20,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 18.31/9.64 [2019-03-28 22:55:20,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 18.31/9.64 [2019-03-28 22:55:20,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 18.31/9.64 [2019-03-28 22:55:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 18.31/9.64 [2019-03-28 22:55:20,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 18.31/9.64 [2019-03-28 22:55:20,471 INFO L82 PathProgramCache]: Analyzing trace with hash 2301, now seen corresponding path program 1 times 18.31/9.64 [2019-03-28 22:55:20,471 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 18.31/9.64 [2019-03-28 22:55:20,471 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 18.31/9.64 [2019-03-28 22:55:20,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 18.31/9.64 [2019-03-28 22:55:20,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 18.31/9.64 [2019-03-28 22:55:20,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 18.31/9.64 [2019-03-28 22:55:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 18.31/9.64 [2019-03-28 22:55:20,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 18.31/9.64 [2019-03-28 22:55:20,535 INFO L216 LassoAnalysis]: Preferences: 18.31/9.64 [2019-03-28 22:55:20,537 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 18.31/9.64 [2019-03-28 22:55:20,537 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 18.31/9.64 [2019-03-28 22:55:20,537 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 18.31/9.64 [2019-03-28 22:55:20,537 INFO L127 ssoRankerPreferences]: Use exernal solver: true 18.31/9.64 [2019-03-28 22:55:20,537 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.64 [2019-03-28 22:55:20,538 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 18.31/9.64 [2019-03-28 22:55:20,538 INFO L130 ssoRankerPreferences]: Path of dumped script: 18.31/9.64 [2019-03-28 22:55:20,538 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 18.31/9.64 [2019-03-28 22:55:20,538 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 18.31/9.64 [2019-03-28 22:55:20,538 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 18.31/9.64 [2019-03-28 22:55:20,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.64 [2019-03-28 22:55:20,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.64 [2019-03-28 22:55:20,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.64 [2019-03-28 22:55:20,667 INFO L300 LassoAnalysis]: Preprocessing complete. 18.31/9.64 [2019-03-28 22:55:20,667 INFO L412 LassoAnalysis]: Checking for nontermination... 18.31/9.64 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 18.31/9.64 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 18.31/9.64 Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.64 [2019-03-28 22:55:20,676 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 18.31/9.64 [2019-03-28 22:55:20,676 INFO L163 nArgumentSynthesizer]: Using integer mode. 18.31/9.64 [2019-03-28 22:55:20,711 INFO L445 LassoAnalysis]: Proved nontermination for one component. 18.31/9.64 [2019-03-28 22:55:20,711 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: [] 18.31/9.64 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 18.31/9.64 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 18.31/9.64 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.64 [2019-03-28 22:55:20,717 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 18.31/9.64 [2019-03-28 22:55:20,717 INFO L163 nArgumentSynthesizer]: Using integer mode. 18.31/9.64 [2019-03-28 22:55:20,744 INFO L445 LassoAnalysis]: Proved nontermination for one component. 18.31/9.64 [2019-03-28 22:55:20,745 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: [] 18.31/9.64 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 18.31/9.65 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 18.31/9.65 Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.65 [2019-03-28 22:55:20,750 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 18.31/9.65 [2019-03-28 22:55:20,750 INFO L163 nArgumentSynthesizer]: Using integer mode. 18.31/9.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 18.31/9.65 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 18.31/9.65 Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.65 [2019-03-28 22:55:20,785 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 18.31/9.65 [2019-03-28 22:55:20,785 INFO L163 nArgumentSynthesizer]: Using integer mode. 18.31/9.65 [2019-03-28 22:55:21,170 INFO L445 LassoAnalysis]: Proved nontermination for one component. 18.31/9.65 [2019-03-28 22:55:21,170 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~a~0=-5, ULTIMATE.start_main_~b~0=4, ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~a~0=-5, ULTIMATE.start_main_~b~0=4, ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=3, ULTIMATE.start_main_~a~0=-4, ULTIMATE.start_main_~b~0=-4, ULTIMATE.start_main_~x~0=-8}, {ULTIMATE.start_main_~y~0=5, ULTIMATE.start_main_~a~0=7, ULTIMATE.start_main_~b~0=7, ULTIMATE.start_main_~x~0=-8}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~a~0=-3, ULTIMATE.start_main_~b~0=-3, ULTIMATE.start_main_~x~0=6}] Lambdas: [1, 1, 1] Nus: [0, 0] 18.31/9.65 [2019-03-28 22:55:21,216 INFO L216 LassoAnalysis]: Preferences: 18.31/9.65 [2019-03-28 22:55:21,216 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 18.31/9.65 [2019-03-28 22:55:21,216 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 18.31/9.65 [2019-03-28 22:55:21,216 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 18.31/9.65 [2019-03-28 22:55:21,216 INFO L127 ssoRankerPreferences]: Use exernal solver: true 18.31/9.65 [2019-03-28 22:55:21,216 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.65 [2019-03-28 22:55:21,217 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 18.31/9.65 [2019-03-28 22:55:21,217 INFO L130 ssoRankerPreferences]: Path of dumped script: 18.31/9.65 [2019-03-28 22:55:21,217 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso 18.31/9.65 [2019-03-28 22:55:21,217 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 18.31/9.65 [2019-03-28 22:55:21,217 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 18.31/9.65 [2019-03-28 22:55:21,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.65 [2019-03-28 22:55:21,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.65 [2019-03-28 22:55:21,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.65 [2019-03-28 22:55:21,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.65 [2019-03-28 22:55:21,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.65 [2019-03-28 22:55:21,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.65 [2019-03-28 22:55:21,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.65 [2019-03-28 22:55:21,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.65 [2019-03-28 22:55:21,370 INFO L300 LassoAnalysis]: Preprocessing complete. 18.31/9.65 [2019-03-28 22:55:21,371 INFO L412 LassoAnalysis]: Checking for nontermination... 18.31/9.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 18.31/9.65 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 18.31/9.65 Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.65 [2019-03-28 22:55:21,381 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 18.31/9.65 [2019-03-28 22:55:21,382 INFO L163 nArgumentSynthesizer]: Using integer mode. 18.31/9.65 [2019-03-28 22:55:21,386 INFO L445 LassoAnalysis]: Proved nontermination for one component. 18.31/9.65 [2019-03-28 22:55:21,386 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 18.31/9.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 18.31/9.65 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 18.31/9.65 Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.65 [2019-03-28 22:55:21,413 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 18.31/9.65 [2019-03-28 22:55:21,413 INFO L163 nArgumentSynthesizer]: Using integer mode. 18.31/9.65 [2019-03-28 22:55:21,441 INFO L445 LassoAnalysis]: Proved nontermination for one component. 18.31/9.65 [2019-03-28 22:55:21,441 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_2=0} Honda state: {v_rep~unnamed0~0~false_2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 18.31/9.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 18.31/9.65 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 18.31/9.65 Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.65 [2019-03-28 22:55:21,446 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 18.31/9.65 [2019-03-28 22:55:21,447 INFO L163 nArgumentSynthesizer]: Using integer mode. 18.31/9.65 [2019-03-28 22:55:21,450 INFO L445 LassoAnalysis]: Proved nontermination for one component. 18.31/9.65 [2019-03-28 22:55:21,451 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 18.31/9.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 18.31/9.65 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 18.31/9.65 Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.65 [2019-03-28 22:55:21,478 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 18.31/9.65 [2019-03-28 22:55:21,478 INFO L163 nArgumentSynthesizer]: Using integer mode. 18.31/9.65 [2019-03-28 22:55:21,481 INFO L445 LassoAnalysis]: Proved nontermination for one component. 18.31/9.65 [2019-03-28 22:55:21,482 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 18.31/9.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 18.31/9.65 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 18.31/9.65 Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.65 [2019-03-28 22:55:21,509 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 18.31/9.65 [2019-03-28 22:55:21,510 INFO L163 nArgumentSynthesizer]: Using integer mode. 18.31/9.65 [2019-03-28 22:55:21,513 INFO L445 LassoAnalysis]: Proved nontermination for one component. 18.31/9.65 [2019-03-28 22:55:21,514 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 18.31/9.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 18.31/9.65 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 18.31/9.65 Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.65 [2019-03-28 22:55:21,541 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 18.31/9.65 [2019-03-28 22:55:21,541 INFO L163 nArgumentSynthesizer]: Using integer mode. 18.31/9.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 18.31/9.65 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 18.31/9.65 Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.65 [2019-03-28 22:55:21,576 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 18.31/9.65 [2019-03-28 22:55:21,576 INFO L163 nArgumentSynthesizer]: Using integer mode. 18.31/9.65 [2019-03-28 22:55:22,554 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 18.31/9.65 [2019-03-28 22:55:22,558 INFO L216 LassoAnalysis]: Preferences: 18.31/9.65 [2019-03-28 22:55:22,559 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 18.31/9.65 [2019-03-28 22:55:22,559 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 18.31/9.65 [2019-03-28 22:55:22,559 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 18.31/9.65 [2019-03-28 22:55:22,559 INFO L127 ssoRankerPreferences]: Use exernal solver: false 18.31/9.65 [2019-03-28 22:55:22,559 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 18.31/9.65 [2019-03-28 22:55:22,559 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 18.31/9.65 [2019-03-28 22:55:22,560 INFO L130 ssoRankerPreferences]: Path of dumped script: 18.31/9.65 [2019-03-28 22:55:22,560 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso 18.31/9.65 [2019-03-28 22:55:22,560 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 18.31/9.65 [2019-03-28 22:55:22,560 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 18.31/9.65 [2019-03-28 22:55:22,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.65 [2019-03-28 22:55:22,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.65 [2019-03-28 22:55:22,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.65 [2019-03-28 22:55:22,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.65 [2019-03-28 22:55:22,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.65 [2019-03-28 22:55:22,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.65 [2019-03-28 22:55:22,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.65 [2019-03-28 22:55:22,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.65 [2019-03-28 22:55:22,678 INFO L300 LassoAnalysis]: Preprocessing complete. 18.31/9.65 [2019-03-28 22:55:22,684 INFO L497 LassoAnalysis]: Using template 'affine'. 18.31/9.65 [2019-03-28 22:55:22,687 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 18.31/9.65 Termination analysis: LINEAR_WITH_GUESSES 18.31/9.65 Number of strict supporting invariants: 0 18.31/9.65 Number of non-strict supporting invariants: 1 18.31/9.65 Consider only non-deceasing supporting invariants: true 18.31/9.65 Simplify termination arguments: true 18.31/9.65 Simplify supporting invariants: trueOverapproximate stem: false 18.31/9.65 [2019-03-28 22:55:22,688 INFO L339 nArgumentSynthesizer]: Template has degree 0. 18.31/9.65 [2019-03-28 22:55:22,689 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 18.31/9.65 [2019-03-28 22:55:22,689 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 18.31/9.65 [2019-03-28 22:55:22,689 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 18.31/9.65 [2019-03-28 22:55:22,693 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 18.31/9.65 [2019-03-28 22:55:22,694 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 18.31/9.65 [2019-03-28 22:55:22,702 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 18.31/9.65 [2019-03-28 22:55:22,703 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 18.31/9.65 Termination analysis: LINEAR_WITH_GUESSES 18.31/9.65 Number of strict supporting invariants: 0 18.31/9.65 Number of non-strict supporting invariants: 1 18.31/9.65 Consider only non-deceasing supporting invariants: true 18.31/9.65 Simplify termination arguments: true 18.31/9.65 Simplify supporting invariants: trueOverapproximate stem: false 18.31/9.65 [2019-03-28 22:55:22,703 INFO L339 nArgumentSynthesizer]: Template has degree 0. 18.31/9.65 [2019-03-28 22:55:22,704 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 18.31/9.65 [2019-03-28 22:55:22,705 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 18.31/9.65 [2019-03-28 22:55:22,705 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 18.31/9.65 [2019-03-28 22:55:22,705 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 18.31/9.65 [2019-03-28 22:55:22,705 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 18.31/9.65 [2019-03-28 22:55:22,706 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 18.31/9.65 [2019-03-28 22:55:22,706 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 18.31/9.65 [2019-03-28 22:55:22,707 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 18.31/9.65 Termination analysis: LINEAR_WITH_GUESSES 18.31/9.65 Number of strict supporting invariants: 0 18.31/9.65 Number of non-strict supporting invariants: 1 18.31/9.65 Consider only non-deceasing supporting invariants: true 18.31/9.65 Simplify termination arguments: true 18.31/9.65 Simplify supporting invariants: trueOverapproximate stem: false 18.31/9.65 [2019-03-28 22:55:22,708 INFO L339 nArgumentSynthesizer]: Template has degree 0. 18.31/9.65 [2019-03-28 22:55:22,708 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 18.31/9.65 [2019-03-28 22:55:22,708 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 18.31/9.65 [2019-03-28 22:55:22,708 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 18.31/9.65 [2019-03-28 22:55:22,708 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 18.31/9.65 [2019-03-28 22:55:22,709 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 18.31/9.65 [2019-03-28 22:55:22,709 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 18.31/9.65 [2019-03-28 22:55:22,710 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 18.31/9.65 [2019-03-28 22:55:22,710 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 18.31/9.65 Termination analysis: LINEAR_WITH_GUESSES 18.31/9.65 Number of strict supporting invariants: 0 18.31/9.65 Number of non-strict supporting invariants: 1 18.31/9.65 Consider only non-deceasing supporting invariants: true 18.31/9.65 Simplify termination arguments: true 18.31/9.65 Simplify supporting invariants: trueOverapproximate stem: false 18.31/9.65 [2019-03-28 22:55:22,711 INFO L339 nArgumentSynthesizer]: Template has degree 0. 18.31/9.65 [2019-03-28 22:55:22,711 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 18.31/9.65 [2019-03-28 22:55:22,711 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 18.31/9.65 [2019-03-28 22:55:22,711 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 18.31/9.65 [2019-03-28 22:55:22,711 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 18.31/9.65 [2019-03-28 22:55:22,712 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 18.31/9.65 [2019-03-28 22:55:22,712 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 18.31/9.65 [2019-03-28 22:55:22,713 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 18.31/9.65 [2019-03-28 22:55:22,714 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 18.31/9.65 Termination analysis: LINEAR_WITH_GUESSES 18.31/9.65 Number of strict supporting invariants: 0 18.31/9.65 Number of non-strict supporting invariants: 1 18.31/9.65 Consider only non-deceasing supporting invariants: true 18.31/9.65 Simplify termination arguments: true 18.31/9.65 Simplify supporting invariants: trueOverapproximate stem: false 18.31/9.65 [2019-03-28 22:55:22,715 INFO L339 nArgumentSynthesizer]: Template has degree 0. 18.31/9.65 [2019-03-28 22:55:22,715 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 18.31/9.65 [2019-03-28 22:55:22,715 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 18.31/9.65 [2019-03-28 22:55:22,715 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 18.31/9.65 [2019-03-28 22:55:22,715 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 18.31/9.65 [2019-03-28 22:55:22,716 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 18.31/9.65 [2019-03-28 22:55:22,716 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 18.31/9.65 [2019-03-28 22:55:22,717 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 18.31/9.65 [2019-03-28 22:55:22,717 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 18.31/9.65 Termination analysis: LINEAR_WITH_GUESSES 18.31/9.65 Number of strict supporting invariants: 0 18.31/9.65 Number of non-strict supporting invariants: 1 18.31/9.65 Consider only non-deceasing supporting invariants: true 18.31/9.65 Simplify termination arguments: true 18.31/9.65 Simplify supporting invariants: trueOverapproximate stem: false 18.31/9.65 [2019-03-28 22:55:22,718 INFO L339 nArgumentSynthesizer]: Template has degree 0. 18.31/9.65 [2019-03-28 22:55:22,718 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 18.31/9.65 [2019-03-28 22:55:22,718 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 18.31/9.65 [2019-03-28 22:55:22,718 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 18.31/9.65 [2019-03-28 22:55:22,718 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 18.31/9.65 [2019-03-28 22:55:22,719 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 18.31/9.65 [2019-03-28 22:55:22,719 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 18.31/9.65 [2019-03-28 22:55:22,720 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 18.31/9.65 [2019-03-28 22:55:22,720 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 18.31/9.65 Termination analysis: LINEAR_WITH_GUESSES 18.31/9.65 Number of strict supporting invariants: 0 18.31/9.65 Number of non-strict supporting invariants: 1 18.31/9.65 Consider only non-deceasing supporting invariants: true 18.31/9.65 Simplify termination arguments: true 18.31/9.65 Simplify supporting invariants: trueOverapproximate stem: false 18.31/9.65 [2019-03-28 22:55:22,721 INFO L339 nArgumentSynthesizer]: Template has degree 0. 18.31/9.65 [2019-03-28 22:55:22,721 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 18.31/9.65 [2019-03-28 22:55:22,721 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 18.31/9.65 [2019-03-28 22:55:22,722 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 18.31/9.65 [2019-03-28 22:55:22,727 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 18.31/9.65 [2019-03-28 22:55:22,727 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 18.31/9.65 [2019-03-28 22:55:22,787 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 18.31/9.65 [2019-03-28 22:55:22,800 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 18.31/9.65 [2019-03-28 22:55:22,800 INFO L444 ModelExtractionUtils]: 11 out of 16 variables were initially zero. Simplification set additionally 0 variables to zero. 18.31/9.65 [2019-03-28 22:55:22,803 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 18.31/9.65 [2019-03-28 22:55:22,806 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. 18.31/9.65 [2019-03-28 22:55:22,806 INFO L518 LassoAnalysis]: Proved termination. 18.31/9.65 [2019-03-28 22:55:22,807 INFO L520 LassoAnalysis]: Termination argument consisting of: 18.31/9.65 Ranking function f(ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~y~0 + 1 18.31/9.65 Supporting invariants [-1*ULTIMATE.start_main_~b~0 + 1*ULTIMATE.start_main_~a~0 >= 0] 18.31/9.65 [2019-03-28 22:55:22,811 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed 18.31/9.65 [2019-03-28 22:55:22,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 18.31/9.65 [2019-03-28 22:55:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 18.31/9.65 [2019-03-28 22:55:22,868 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 3 conjunts are in the unsatisfiable core 18.31/9.65 [2019-03-28 22:55:22,870 INFO L279 TraceCheckSpWp]: Computing forward predicates... 18.31/9.65 [2019-03-28 22:55:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 18.31/9.65 [2019-03-28 22:55:22,881 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core 18.31/9.65 [2019-03-28 22:55:22,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... 18.31/9.65 [2019-03-28 22:55:22,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 18.31/9.65 [2019-03-28 22:55:22,908 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization 18.31/9.65 [2019-03-28 22:55:22,913 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates 18.31/9.65 [2019-03-28 22:55:22,914 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 2 states. Second operand 2 states. 18.31/9.65 [2019-03-28 22:55:22,983 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 2 states.. Second operand 2 states. Result 6 states and 11 transitions. Complement of second has 4 states. 18.31/9.65 [2019-03-28 22:55:22,984 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 18.31/9.65 [2019-03-28 22:55:22,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. 18.31/9.65 [2019-03-28 22:55:22,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. 18.31/9.65 [2019-03-28 22:55:22,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 1 letters. 18.31/9.65 [2019-03-28 22:55:22,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. 18.31/9.65 [2019-03-28 22:55:22,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 1 letters. 18.31/9.65 [2019-03-28 22:55:22,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. 18.31/9.65 [2019-03-28 22:55:22,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. 18.31/9.65 [2019-03-28 22:55:22,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. 18.31/9.65 [2019-03-28 22:55:22,998 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 11 transitions. 18.31/9.65 [2019-03-28 22:55:22,999 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 18.31/9.65 [2019-03-28 22:55:23,002 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 11 transitions. 18.31/9.65 [2019-03-28 22:55:23,003 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 18.31/9.65 [2019-03-28 22:55:23,004 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 18.31/9.65 [2019-03-28 22:55:23,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 11 transitions. 18.31/9.65 [2019-03-28 22:55:23,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 18.31/9.65 [2019-03-28 22:55:23,005 INFO L706 BuchiCegarLoop]: Abstraction has 6 states and 11 transitions. 18.31/9.65 [2019-03-28 22:55:23,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 11 transitions. 18.31/9.65 [2019-03-28 22:55:23,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. 18.31/9.65 [2019-03-28 22:55:23,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. 18.31/9.65 [2019-03-28 22:55:23,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. 18.31/9.65 [2019-03-28 22:55:23,035 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 10 transitions. 18.31/9.65 [2019-03-28 22:55:23,035 INFO L609 BuchiCegarLoop]: Abstraction has 5 states and 10 transitions. 18.31/9.65 [2019-03-28 22:55:23,035 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ 18.31/9.65 [2019-03-28 22:55:23,035 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 10 transitions. 18.31/9.65 [2019-03-28 22:55:23,036 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 18.31/9.65 [2019-03-28 22:55:23,036 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 18.31/9.65 [2019-03-28 22:55:23,036 INFO L119 BuchiIsEmpty]: Starting construction of run 18.31/9.65 [2019-03-28 22:55:23,037 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 18.31/9.65 [2019-03-28 22:55:23,037 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 18.31/9.65 [2019-03-28 22:55:23,037 INFO L794 eck$LassoCheckResult]: Stem: 46#ULTIMATE.startENTRY [42] ULTIMATE.startENTRY-->L19-2: Formula: (and (= (+ v_ULTIMATE.start_main_~b~0_9 1) v_ULTIMATE.start_main_~a~0_9) (< v_ULTIMATE.start_main_~x~0_11 0)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 47#L19-2 [39] L19-2-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 (+ (* (- 1) v_ULTIMATE.start_main_~a~0_8) v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~b~0_8 (- 1))) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~a~0_8 (* (- 1) v_ULTIMATE.start_main_~b~0_8) (- 1))) (<= 0 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 48#L19-2 18.31/9.65 [2019-03-28 22:55:23,038 INFO L796 eck$LassoCheckResult]: Loop: 48#L19-2 [39] L19-2-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 (+ (* (- 1) v_ULTIMATE.start_main_~a~0_8) v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~b~0_8 (- 1))) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~a~0_8 (* (- 1) v_ULTIMATE.start_main_~b~0_8) (- 1))) (<= 0 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 48#L19-2 18.31/9.65 [2019-03-28 22:55:23,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 18.31/9.65 [2019-03-28 22:55:23,038 INFO L82 PathProgramCache]: Analyzing trace with hash 2302, now seen corresponding path program 1 times 18.31/9.65 [2019-03-28 22:55:23,039 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 18.31/9.65 [2019-03-28 22:55:23,039 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 18.31/9.65 [2019-03-28 22:55:23,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 18.31/9.65 [2019-03-28 22:55:23,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 18.31/9.65 [2019-03-28 22:55:23,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 18.31/9.65 [2019-03-28 22:55:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 18.31/9.65 [2019-03-28 22:55:23,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 18.31/9.65 [2019-03-28 22:55:23,076 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 18.31/9.65 [2019-03-28 22:55:23,077 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 18.31/9.65 [2019-03-28 22:55:23,079 INFO L799 eck$LassoCheckResult]: stem already infeasible 18.31/9.65 [2019-03-28 22:55:23,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 18.31/9.65 [2019-03-28 22:55:23,080 INFO L82 PathProgramCache]: Analyzing trace with hash 70, now seen corresponding path program 1 times 18.31/9.65 [2019-03-28 22:55:23,080 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 18.31/9.65 [2019-03-28 22:55:23,080 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 18.31/9.65 [2019-03-28 22:55:23,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 18.31/9.65 [2019-03-28 22:55:23,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 18.31/9.65 [2019-03-28 22:55:23,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 18.31/9.65 [2019-03-28 22:55:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 18.31/9.65 [2019-03-28 22:55:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 18.31/9.65 [2019-03-28 22:55:23,106 INFO L216 LassoAnalysis]: Preferences: 18.31/9.65 [2019-03-28 22:55:23,107 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 18.31/9.65 [2019-03-28 22:55:23,107 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 18.31/9.65 [2019-03-28 22:55:23,108 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 18.31/9.65 [2019-03-28 22:55:23,108 INFO L127 ssoRankerPreferences]: Use exernal solver: true 18.31/9.65 [2019-03-28 22:55:23,108 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.65 [2019-03-28 22:55:23,108 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 18.31/9.65 [2019-03-28 22:55:23,108 INFO L130 ssoRankerPreferences]: Path of dumped script: 18.31/9.65 [2019-03-28 22:55:23,108 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 18.31/9.65 [2019-03-28 22:55:23,108 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 18.31/9.65 [2019-03-28 22:55:23,108 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 18.31/9.65 [2019-03-28 22:55:23,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.65 [2019-03-28 22:55:23,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.65 [2019-03-28 22:55:23,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.65 [2019-03-28 22:55:23,183 INFO L300 LassoAnalysis]: Preprocessing complete. 18.31/9.65 [2019-03-28 22:55:23,183 INFO L412 LassoAnalysis]: Checking for nontermination... 18.31/9.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 18.31/9.65 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 18.31/9.65 Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.65 [2019-03-28 22:55:23,191 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 18.31/9.65 [2019-03-28 22:55:23,191 INFO L163 nArgumentSynthesizer]: Using integer mode. 18.31/9.65 [2019-03-28 22:55:23,220 INFO L445 LassoAnalysis]: Proved nontermination for one component. 18.31/9.65 [2019-03-28 22:55:23,221 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_4=0} Honda state: {v_rep~unnamed0~0~false_4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 18.31/9.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 18.31/9.65 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 18.31/9.65 Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.65 [2019-03-28 22:55:23,228 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 18.31/9.65 [2019-03-28 22:55:23,228 INFO L163 nArgumentSynthesizer]: Using integer mode. 18.31/9.65 [2019-03-28 22:55:23,256 INFO L445 LassoAnalysis]: Proved nontermination for one component. 18.31/9.65 [2019-03-28 22:55:23,256 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_4=1} Honda state: {v_rep~unnamed0~0~true_4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 18.31/9.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 18.31/9.65 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 18.31/9.65 Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.65 [2019-03-28 22:55:23,262 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 18.31/9.65 [2019-03-28 22:55:23,263 INFO L163 nArgumentSynthesizer]: Using integer mode. 18.31/9.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 18.31/9.65 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 18.31/9.65 Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.65 [2019-03-28 22:55:23,299 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 18.31/9.65 [2019-03-28 22:55:23,300 INFO L163 nArgumentSynthesizer]: Using integer mode. 18.31/9.65 [2019-03-28 22:55:23,858 INFO L445 LassoAnalysis]: Proved nontermination for one component. 18.31/9.65 [2019-03-28 22:55:23,858 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~a~0=7, ULTIMATE.start_main_~b~0=-2, ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~a~0=7, ULTIMATE.start_main_~b~0=-2, ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=2, ULTIMATE.start_main_~a~0=0, ULTIMATE.start_main_~b~0=0, ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~y~0=-4, ULTIMATE.start_main_~a~0=7, ULTIMATE.start_main_~b~0=7, ULTIMATE.start_main_~x~0=7}, {ULTIMATE.start_main_~y~0=-8, ULTIMATE.start_main_~a~0=-7, ULTIMATE.start_main_~b~0=-7, ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 1, 1] Nus: [0, 0] 18.31/9.65 [2019-03-28 22:55:23,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. 18.31/9.65 [2019-03-28 22:55:23,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 18.31/9.65 [2019-03-28 22:55:23,888 INFO L87 Difference]: Start difference. First operand 5 states and 10 transitions. cyclomatic complexity: 7 Second operand 3 states. 18.31/9.65 [2019-03-28 22:55:23,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 18.31/9.65 [2019-03-28 22:55:23,898 INFO L93 Difference]: Finished difference Result 5 states and 8 transitions. 18.31/9.65 [2019-03-28 22:55:23,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 18.31/9.65 [2019-03-28 22:55:23,900 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 8 transitions. 18.31/9.65 [2019-03-28 22:55:23,901 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 18.31/9.65 [2019-03-28 22:55:23,901 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 5 states and 8 transitions. 18.31/9.65 [2019-03-28 22:55:23,901 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 18.31/9.65 [2019-03-28 22:55:23,901 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 18.31/9.65 [2019-03-28 22:55:23,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 8 transitions. 18.31/9.65 [2019-03-28 22:55:23,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 18.31/9.65 [2019-03-28 22:55:23,902 INFO L706 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. 18.31/9.65 [2019-03-28 22:55:23,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 8 transitions. 18.31/9.65 [2019-03-28 22:55:23,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. 18.31/9.65 [2019-03-28 22:55:23,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. 18.31/9.65 [2019-03-28 22:55:23,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. 18.31/9.65 [2019-03-28 22:55:23,903 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. 18.31/9.65 [2019-03-28 22:55:23,903 INFO L609 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. 18.31/9.65 [2019-03-28 22:55:23,904 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ 18.31/9.65 [2019-03-28 22:55:23,904 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 8 transitions. 18.31/9.65 [2019-03-28 22:55:23,904 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 18.31/9.65 [2019-03-28 22:55:23,904 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 18.31/9.65 [2019-03-28 22:55:23,904 INFO L119 BuchiIsEmpty]: Starting construction of run 18.31/9.65 [2019-03-28 22:55:23,905 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] 18.31/9.65 [2019-03-28 22:55:23,905 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 18.31/9.65 [2019-03-28 22:55:23,906 INFO L794 eck$LassoCheckResult]: Stem: 62#ULTIMATE.startENTRY [42] ULTIMATE.startENTRY-->L19-2: Formula: (and (= (+ v_ULTIMATE.start_main_~b~0_9 1) v_ULTIMATE.start_main_~a~0_9) (< v_ULTIMATE.start_main_~x~0_11 0)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 63#L19-2 [38] L19-2-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 (+ (* (- 1) v_ULTIMATE.start_main_~a~0_8) v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~b~0_8 (- 1))) (<= 0 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~a~0_8 (* (- 1) v_ULTIMATE.start_main_~b~0_8) (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 66#L19-2 [39] L19-2-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 (+ (* (- 1) v_ULTIMATE.start_main_~a~0_8) v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~b~0_8 (- 1))) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~a~0_8 (* (- 1) v_ULTIMATE.start_main_~b~0_8) (- 1))) (<= 0 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 64#L19-2 18.31/9.65 [2019-03-28 22:55:23,906 INFO L796 eck$LassoCheckResult]: Loop: 64#L19-2 [39] L19-2-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 (+ (* (- 1) v_ULTIMATE.start_main_~a~0_8) v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~b~0_8 (- 1))) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~a~0_8 (* (- 1) v_ULTIMATE.start_main_~b~0_8) (- 1))) (<= 0 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 64#L19-2 18.31/9.65 [2019-03-28 22:55:23,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 18.31/9.65 [2019-03-28 22:55:23,906 INFO L82 PathProgramCache]: Analyzing trace with hash 71370, now seen corresponding path program 1 times 18.31/9.65 [2019-03-28 22:55:23,906 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 18.31/9.65 [2019-03-28 22:55:23,906 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 18.31/9.65 [2019-03-28 22:55:23,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 18.31/9.65 [2019-03-28 22:55:23,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 18.31/9.65 [2019-03-28 22:55:23,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 18.31/9.65 [2019-03-28 22:55:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 18.31/9.65 [2019-03-28 22:55:23,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 18.31/9.65 [2019-03-28 22:55:23,938 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. 18.31/9.65 [2019-03-28 22:55:23,938 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 18.31/9.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 18.31/9.65 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) 18.31/9.65 Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 18.31/9.65 [2019-03-28 22:55:23,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 18.31/9.65 [2019-03-28 22:55:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 18.31/9.65 [2019-03-28 22:55:23,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core 18.31/9.65 [2019-03-28 22:55:23,959 INFO L279 TraceCheckSpWp]: Computing forward predicates... 18.31/9.65 [2019-03-28 22:55:23,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 18.31/9.65 [2019-03-28 22:55:24,007 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. 18.31/9.65 [2019-03-28 22:55:24,007 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 3 18.31/9.65 [2019-03-28 22:55:24,008 INFO L799 eck$LassoCheckResult]: stem already infeasible 18.31/9.65 [2019-03-28 22:55:24,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 18.31/9.65 [2019-03-28 22:55:24,008 INFO L82 PathProgramCache]: Analyzing trace with hash 70, now seen corresponding path program 2 times 18.31/9.65 [2019-03-28 22:55:24,008 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 18.31/9.65 [2019-03-28 22:55:24,008 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 18.31/9.65 [2019-03-28 22:55:24,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 18.31/9.65 [2019-03-28 22:55:24,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 18.31/9.65 [2019-03-28 22:55:24,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 18.31/9.65 [2019-03-28 22:55:24,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 18.31/9.65 [2019-03-28 22:55:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 18.31/9.65 [2019-03-28 22:55:24,030 INFO L216 LassoAnalysis]: Preferences: 18.31/9.65 [2019-03-28 22:55:24,031 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 18.31/9.65 [2019-03-28 22:55:24,031 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 18.31/9.65 [2019-03-28 22:55:24,031 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 18.31/9.65 [2019-03-28 22:55:24,031 INFO L127 ssoRankerPreferences]: Use exernal solver: true 18.31/9.65 [2019-03-28 22:55:24,031 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.65 [2019-03-28 22:55:24,031 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 18.31/9.65 [2019-03-28 22:55:24,031 INFO L130 ssoRankerPreferences]: Path of dumped script: 18.31/9.65 [2019-03-28 22:55:24,032 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 18.31/9.65 [2019-03-28 22:55:24,032 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 18.31/9.65 [2019-03-28 22:55:24,032 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 18.31/9.65 [2019-03-28 22:55:24,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.65 [2019-03-28 22:55:24,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.65 [2019-03-28 22:55:24,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 18.31/9.65 [2019-03-28 22:55:24,091 INFO L300 LassoAnalysis]: Preprocessing complete. 18.31/9.65 [2019-03-28 22:55:24,091 INFO L412 LassoAnalysis]: Checking for nontermination... 18.31/9.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 18.31/9.65 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 18.31/9.65 Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.65 [2019-03-28 22:55:24,095 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 18.31/9.65 [2019-03-28 22:55:24,095 INFO L163 nArgumentSynthesizer]: Using integer mode. 18.31/9.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 18.31/9.65 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 18.31/9.65 Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.65 [2019-03-28 22:55:24,130 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 18.31/9.65 [2019-03-28 22:55:24,130 INFO L163 nArgumentSynthesizer]: Using integer mode. 18.31/9.65 [2019-03-28 22:55:24,512 INFO L445 LassoAnalysis]: Proved nontermination for one component. 18.31/9.65 [2019-03-28 22:55:24,513 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~a~0=7, ULTIMATE.start_main_~x~0=0, ULTIMATE.start_main_~b~0=2} Honda state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~a~0=7, ULTIMATE.start_main_~x~0=0, ULTIMATE.start_main_~b~0=2} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=-3, ULTIMATE.start_main_~a~0=3, ULTIMATE.start_main_~x~0=0, ULTIMATE.start_main_~b~0=3}, {ULTIMATE.start_main_~y~0=-3, ULTIMATE.start_main_~a~0=-3, ULTIMATE.start_main_~x~0=4, ULTIMATE.start_main_~b~0=-3}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~a~0=0, ULTIMATE.start_main_~x~0=0, ULTIMATE.start_main_~b~0=0}] Lambdas: [1, 1, 0] Nus: [0, 0] 18.31/9.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 18.31/9.65 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 18.31/9.65 Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.65 [2019-03-28 22:55:24,565 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 18.31/9.65 [2019-03-28 22:55:24,565 INFO L163 nArgumentSynthesizer]: Using integer mode. 18.31/9.65 [2019-03-28 22:55:24,593 INFO L445 LassoAnalysis]: Proved nontermination for one component. 18.31/9.65 [2019-03-28 22:55:24,593 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: [] 18.31/9.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 18.31/9.65 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 18.31/9.65 Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 18.31/9.65 [2019-03-28 22:55:24,598 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 18.31/9.65 [2019-03-28 22:55:24,598 INFO L163 nArgumentSynthesizer]: Using integer mode. 18.31/9.65 [2019-03-28 22:55:24,625 INFO L445 LassoAnalysis]: Proved nontermination for one component. 18.31/9.65 [2019-03-28 22:55:24,625 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 18.31/9.65 [2019-03-28 22:55:24,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. 18.31/9.65 [2019-03-28 22:55:24,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 18.31/9.65 [2019-03-28 22:55:24,628 INFO L87 Difference]: Start difference. First operand 5 states and 8 transitions. cyclomatic complexity: 5 Second operand 5 states. 18.31/9.65 [2019-03-28 22:55:24,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 18.31/9.65 [2019-03-28 22:55:24,636 INFO L93 Difference]: Finished difference Result 3 states and 3 transitions. 18.31/9.65 [2019-03-28 22:55:24,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 18.31/9.65 [2019-03-28 22:55:24,638 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3 states and 3 transitions. 18.31/9.65 [2019-03-28 22:55:24,638 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 18.31/9.65 [2019-03-28 22:55:24,638 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3 states to 0 states and 0 transitions. 18.31/9.65 [2019-03-28 22:55:24,639 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 18.31/9.65 [2019-03-28 22:55:24,639 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 18.31/9.65 [2019-03-28 22:55:24,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. 18.31/9.65 [2019-03-28 22:55:24,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 18.31/9.65 [2019-03-28 22:55:24,639 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 18.31/9.65 [2019-03-28 22:55:24,639 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 18.31/9.65 [2019-03-28 22:55:24,640 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 18.31/9.65 [2019-03-28 22:55:24,640 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ 18.31/9.65 [2019-03-28 22:55:24,640 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. 18.31/9.65 [2019-03-28 22:55:24,640 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 18.31/9.65 [2019-03-28 22:55:24,640 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true 18.31/9.65 [2019-03-28 22:55:24,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:55:24 BasicIcfg 18.31/9.65 [2019-03-28 22:55:24,647 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 18.31/9.65 [2019-03-28 22:55:24,647 INFO L168 Benchmark]: Toolchain (without parser) took 5166.14 ms. Allocated memory was 649.6 MB in the beginning and 679.0 MB in the end (delta: 29.4 MB). Free memory was 559.2 MB in the beginning and 385.6 MB in the end (delta: 173.7 MB). Peak memory consumption was 203.0 MB. Max. memory is 50.3 GB. 18.31/9.65 [2019-03-28 22:55:24,649 INFO L168 Benchmark]: CDTParser took 0.17 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. 18.31/9.65 [2019-03-28 22:55:24,649 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.39 ms. Allocated memory is still 649.6 MB. Free memory was 559.2 MB in the beginning and 549.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 50.3 GB. 18.31/9.65 [2019-03-28 22:55:24,650 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.46 ms. Allocated memory was 649.6 MB in the beginning and 679.0 MB in the end (delta: 29.4 MB). Free memory was 549.5 MB in the beginning and 645.9 MB in the end (delta: -96.4 MB). Peak memory consumption was 20.1 MB. Max. memory is 50.3 GB. 18.31/9.65 [2019-03-28 22:55:24,650 INFO L168 Benchmark]: Boogie Preprocessor took 20.94 ms. Allocated memory is still 679.0 MB. Free memory was 645.9 MB in the beginning and 643.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. 18.31/9.65 [2019-03-28 22:55:24,651 INFO L168 Benchmark]: RCFGBuilder took 215.56 ms. Allocated memory is still 679.0 MB. Free memory was 643.0 MB in the beginning and 629.6 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 50.3 GB. 18.31/9.65 [2019-03-28 22:55:24,652 INFO L168 Benchmark]: BlockEncodingV2 took 95.89 ms. Allocated memory is still 679.0 MB. Free memory was 629.6 MB in the beginning and 623.1 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. 18.31/9.65 [2019-03-28 22:55:24,652 INFO L168 Benchmark]: TraceAbstraction took 155.98 ms. Allocated memory is still 679.0 MB. Free memory was 623.1 MB in the beginning and 614.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. 18.31/9.65 [2019-03-28 22:55:24,653 INFO L168 Benchmark]: BuchiAutomizer took 4343.72 ms. Allocated memory is still 679.0 MB. Free memory was 613.3 MB in the beginning and 385.6 MB in the end (delta: 227.7 MB). Peak memory consumption was 227.7 MB. Max. memory is 50.3 GB. 18.31/9.65 [2019-03-28 22:55:24,657 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 18.31/9.65 --- Results --- 18.31/9.65 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 18.31/9.65 - StatisticsResult: Initial Icfg 18.31/9.65 7 locations, 9 edges 18.31/9.65 - StatisticsResult: Encoded RCFG 18.31/9.65 2 locations, 3 edges 18.31/9.65 * Results from de.uni_freiburg.informatik.ultimate.core: 18.31/9.65 - StatisticsResult: Toolchain Benchmarks 18.31/9.65 Benchmark results are: 18.31/9.65 * CDTParser took 0.17 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. 18.31/9.65 * CACSL2BoogieTranslator took 230.39 ms. Allocated memory is still 649.6 MB. Free memory was 559.2 MB in the beginning and 549.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 50.3 GB. 18.31/9.65 * Boogie Procedure Inliner took 98.46 ms. Allocated memory was 649.6 MB in the beginning and 679.0 MB in the end (delta: 29.4 MB). Free memory was 549.5 MB in the beginning and 645.9 MB in the end (delta: -96.4 MB). Peak memory consumption was 20.1 MB. Max. memory is 50.3 GB. 18.31/9.65 * Boogie Preprocessor took 20.94 ms. Allocated memory is still 679.0 MB. Free memory was 645.9 MB in the beginning and 643.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. 18.31/9.65 * RCFGBuilder took 215.56 ms. Allocated memory is still 679.0 MB. Free memory was 643.0 MB in the beginning and 629.6 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 50.3 GB. 18.31/9.65 * BlockEncodingV2 took 95.89 ms. Allocated memory is still 679.0 MB. Free memory was 629.6 MB in the beginning and 623.1 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. 18.31/9.65 * TraceAbstraction took 155.98 ms. Allocated memory is still 679.0 MB. Free memory was 623.1 MB in the beginning and 614.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. 18.31/9.65 * BuchiAutomizer took 4343.72 ms. Allocated memory is still 679.0 MB. Free memory was 613.3 MB in the beginning and 385.6 MB in the end (delta: 227.7 MB). Peak memory consumption was 227.7 MB. Max. memory is 50.3 GB. 18.31/9.65 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 18.31/9.65 - AllSpecificationsHoldResult: All specifications hold 18.31/9.65 We were not able to verify any specifiation because the program does not contain any specification. 18.31/9.65 - InvariantResult [Line: 19]: Loop Invariant 18.31/9.65 Derived loop invariant: 1 18.31/9.65 - StatisticsResult: Ultimate Automizer benchmark data 18.31/9.65 CFG has 1 procedures, 2 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=2occurred 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 18.31/9.65 - StatisticsResult: Constructed decomposition of program 18.31/9.65 Your program was decomposed into 3 terminating modules (2 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has affine ranking function 2 * y + 1 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. 18.31/9.65 - StatisticsResult: Timing statistics 18.31/9.65 BüchiAutomizer plugin needed 4.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 4.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 3 SDtfs, 3 SDslu, 0 SDs, 0 SdLazy, 10 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN2 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital26 mio100 ax146 hnf94 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq184 hnf94 smp100 dnf100 smp100 tf103 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.7s 18.31/9.65 - TerminationAnalysisResult: Termination proven 18.31/9.65 Buchi Automizer proved that your program is terminating 18.31/9.65 RESULT: Ultimate proved your program to be correct! 18.31/9.65 !SESSION 2019-03-28 22:55:16.210 ----------------------------------------------- 18.31/9.65 eclipse.buildId=unknown 18.31/9.65 java.version=1.8.0_181 18.31/9.65 java.vendor=Oracle Corporation 18.31/9.65 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 18.31/9.65 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 18.31/9.65 Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c 18.31/9.65 18.31/9.65 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 22:55:24.911 18.31/9.65 !MESSAGE The workspace will exit with unsaved changes in this session. 18.31/9.65 Received shutdown request... 18.31/9.65 Ultimate: 18.31/9.65 GTK+ Version Check 18.31/9.65 EOF