15.02/8.65 YES 15.02/8.65 15.02/8.65 Ultimate: Cannot open display: 15.02/8.65 This is Ultimate 0.1.24-8dc7c08-m 15.02/8.65 [2019-03-28 11:58:16,736 INFO L170 SettingsManager]: Resetting all preferences to default values... 15.02/8.65 [2019-03-28 11:58:16,739 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 15.02/8.65 [2019-03-28 11:58:16,750 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 15.02/8.65 [2019-03-28 11:58:16,751 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 15.02/8.65 [2019-03-28 11:58:16,752 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 15.02/8.65 [2019-03-28 11:58:16,753 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 15.02/8.65 [2019-03-28 11:58:16,754 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 15.02/8.65 [2019-03-28 11:58:16,756 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 15.02/8.65 [2019-03-28 11:58:16,757 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 15.02/8.65 [2019-03-28 11:58:16,757 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 15.02/8.65 [2019-03-28 11:58:16,758 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 15.02/8.65 [2019-03-28 11:58:16,758 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 15.02/8.65 [2019-03-28 11:58:16,759 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 15.02/8.65 [2019-03-28 11:58:16,760 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 15.02/8.65 [2019-03-28 11:58:16,761 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 15.02/8.65 [2019-03-28 11:58:16,762 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 15.02/8.65 [2019-03-28 11:58:16,764 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 15.02/8.65 [2019-03-28 11:58:16,765 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 15.02/8.65 [2019-03-28 11:58:16,767 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 15.02/8.65 [2019-03-28 11:58:16,768 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 15.02/8.65 [2019-03-28 11:58:16,769 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 15.02/8.65 [2019-03-28 11:58:16,771 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 15.02/8.65 [2019-03-28 11:58:16,771 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 15.02/8.65 [2019-03-28 11:58:16,772 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 15.02/8.65 [2019-03-28 11:58:16,772 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 15.02/8.65 [2019-03-28 11:58:16,773 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 15.02/8.65 [2019-03-28 11:58:16,774 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 15.02/8.65 [2019-03-28 11:58:16,774 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 15.02/8.65 [2019-03-28 11:58:16,775 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 15.02/8.65 [2019-03-28 11:58:16,775 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 15.02/8.65 [2019-03-28 11:58:16,776 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 15.02/8.65 [2019-03-28 11:58:16,777 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 15.02/8.65 [2019-03-28 11:58:16,777 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 15.02/8.65 [2019-03-28 11:58:16,778 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 15.02/8.65 [2019-03-28 11:58:16,778 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 15.02/8.65 [2019-03-28 11:58:16,778 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 15.02/8.65 [2019-03-28 11:58:16,779 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 15.02/8.65 [2019-03-28 11:58:16,780 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 15.02/8.65 [2019-03-28 11:58:16,780 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf 15.02/8.65 [2019-03-28 11:58:16,795 INFO L110 SettingsManager]: Loading preferences was successful 15.02/8.65 [2019-03-28 11:58:16,795 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 15.02/8.65 [2019-03-28 11:58:16,796 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 15.02/8.65 [2019-03-28 11:58:16,796 INFO L133 SettingsManager]: * Rewrite not-equals=true 15.02/8.65 [2019-03-28 11:58:16,796 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 15.02/8.65 [2019-03-28 11:58:16,797 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 15.02/8.65 [2019-03-28 11:58:16,797 INFO L133 SettingsManager]: * Use SBE=true 15.02/8.65 [2019-03-28 11:58:16,797 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 15.02/8.65 [2019-03-28 11:58:16,797 INFO L133 SettingsManager]: * Use old map elimination=false 15.02/8.65 [2019-03-28 11:58:16,797 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 15.02/8.65 [2019-03-28 11:58:16,797 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 15.02/8.65 [2019-03-28 11:58:16,798 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 15.02/8.65 [2019-03-28 11:58:16,798 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 15.02/8.65 [2019-03-28 11:58:16,798 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 15.02/8.65 [2019-03-28 11:58:16,798 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.02/8.65 [2019-03-28 11:58:16,798 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 15.02/8.65 [2019-03-28 11:58:16,798 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 15.02/8.65 [2019-03-28 11:58:16,799 INFO L133 SettingsManager]: * Check division by zero=IGNORE 15.02/8.65 [2019-03-28 11:58:16,799 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 15.02/8.65 [2019-03-28 11:58:16,799 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 15.02/8.65 [2019-03-28 11:58:16,799 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 15.02/8.65 [2019-03-28 11:58:16,799 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 15.02/8.65 [2019-03-28 11:58:16,800 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 15.02/8.65 [2019-03-28 11:58:16,800 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 15.02/8.65 [2019-03-28 11:58:16,800 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 15.02/8.65 [2019-03-28 11:58:16,800 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 15.02/8.65 [2019-03-28 11:58:16,800 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 15.02/8.65 [2019-03-28 11:58:16,800 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 15.02/8.65 [2019-03-28 11:58:16,801 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 15.02/8.65 [2019-03-28 11:58:16,825 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 15.02/8.65 [2019-03-28 11:58:16,841 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 15.02/8.65 [2019-03-28 11:58:16,845 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 15.02/8.65 [2019-03-28 11:58:16,846 INFO L271 PluginConnector]: Initializing CDTParser... 15.02/8.65 [2019-03-28 11:58:16,847 INFO L276 PluginConnector]: CDTParser initialized 15.02/8.65 [2019-03-28 11:58:16,847 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c 15.02/8.65 [2019-03-28 11:58:16,911 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/f5ce69a5b0aa4b3e81c0bb201750dc70/FLAGcadb01338 15.02/8.65 [2019-03-28 11:58:17,445 INFO L307 CDTParser]: Found 1 translation units. 15.02/8.65 [2019-03-28 11:58:17,446 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c 15.02/8.65 [2019-03-28 11:58:17,452 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/f5ce69a5b0aa4b3e81c0bb201750dc70/FLAGcadb01338 15.02/8.65 [2019-03-28 11:58:17,852 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/f5ce69a5b0aa4b3e81c0bb201750dc70 15.02/8.65 [2019-03-28 11:58:17,863 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 15.02/8.65 [2019-03-28 11:58:17,865 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 15.02/8.65 [2019-03-28 11:58:17,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 15.02/8.65 [2019-03-28 11:58:17,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 15.02/8.65 [2019-03-28 11:58:17,870 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 15.02/8.65 [2019-03-28 11:58:17,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 11:58:17" (1/1) ... 15.02/8.65 [2019-03-28 11:58:17,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@251de691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:58:17, skipping insertion in model container 15.02/8.65 [2019-03-28 11:58:17,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 11:58:17" (1/1) ... 15.02/8.65 [2019-03-28 11:58:17,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 15.02/8.65 [2019-03-28 11:58:17,898 INFO L176 MainTranslator]: Built tables and reachable declarations 15.02/8.65 [2019-03-28 11:58:18,060 INFO L206 PostProcessor]: Analyzing one entry point: main 15.02/8.65 [2019-03-28 11:58:18,065 INFO L191 MainTranslator]: Completed pre-run 15.02/8.65 [2019-03-28 11:58:18,081 INFO L206 PostProcessor]: Analyzing one entry point: main 15.02/8.65 [2019-03-28 11:58:18,096 INFO L195 MainTranslator]: Completed translation 15.02/8.65 [2019-03-28 11:58:18,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:58:18 WrapperNode 15.02/8.65 [2019-03-28 11:58:18,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 15.02/8.65 [2019-03-28 11:58:18,098 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 15.02/8.65 [2019-03-28 11:58:18,098 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 15.02/8.65 [2019-03-28 11:58:18,098 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 15.02/8.65 [2019-03-28 11:58:18,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:58:18" (1/1) ... 15.02/8.65 [2019-03-28 11:58:18,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:58:18" (1/1) ... 15.02/8.65 [2019-03-28 11:58:18,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 15.02/8.65 [2019-03-28 11:58:18,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 15.02/8.65 [2019-03-28 11:58:18,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 15.02/8.65 [2019-03-28 11:58:18,201 INFO L276 PluginConnector]: Boogie Preprocessor initialized 15.02/8.65 [2019-03-28 11:58:18,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:58:18" (1/1) ... 15.02/8.65 [2019-03-28 11:58:18,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:58:18" (1/1) ... 15.02/8.65 [2019-03-28 11:58:18,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:58:18" (1/1) ... 15.02/8.65 [2019-03-28 11:58:18,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:58:18" (1/1) ... 15.02/8.65 [2019-03-28 11:58:18,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:58:18" (1/1) ... 15.02/8.65 [2019-03-28 11:58:18,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:58:18" (1/1) ... 15.02/8.65 [2019-03-28 11:58:18,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:58:18" (1/1) ... 15.02/8.65 [2019-03-28 11:58:18,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 15.02/8.65 [2019-03-28 11:58:18,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 15.02/8.65 [2019-03-28 11:58:18,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... 15.02/8.65 [2019-03-28 11:58:18,222 INFO L276 PluginConnector]: RCFGBuilder initialized 15.02/8.65 [2019-03-28 11:58:18,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:58:18" (1/1) ... 15.02/8.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.02/8.65 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 15.02/8.65 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 15.02/8.65 [2019-03-28 11:58:18,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 15.02/8.65 [2019-03-28 11:58:18,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 15.02/8.65 [2019-03-28 11:58:18,468 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 15.02/8.65 [2019-03-28 11:58:18,468 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. 15.02/8.65 [2019-03-28 11:58:18,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 11:58:18 BoogieIcfgContainer 15.02/8.65 [2019-03-28 11:58:18,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 15.02/8.65 [2019-03-28 11:58:18,470 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 15.02/8.65 [2019-03-28 11:58:18,471 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 15.02/8.65 [2019-03-28 11:58:18,473 INFO L276 PluginConnector]: BlockEncodingV2 initialized 15.02/8.65 [2019-03-28 11:58:18,474 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 11:58:18" (1/1) ... 15.02/8.65 [2019-03-28 11:58:18,490 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges 15.02/8.65 [2019-03-28 11:58:18,491 INFO L258 BlockEncoder]: Using Remove infeasible edges 15.02/8.65 [2019-03-28 11:58:18,492 INFO L263 BlockEncoder]: Using Maximize final states 15.02/8.65 [2019-03-28 11:58:18,493 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 15.02/8.65 [2019-03-28 11:58:18,493 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 15.02/8.65 [2019-03-28 11:58:18,495 INFO L296 BlockEncoder]: Using Remove sink states 15.02/8.65 [2019-03-28 11:58:18,496 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 15.02/8.65 [2019-03-28 11:58:18,496 INFO L179 BlockEncoder]: Using Rewrite not-equals 15.02/8.65 [2019-03-28 11:58:18,513 INFO L185 BlockEncoder]: Using Use SBE 15.02/8.65 [2019-03-28 11:58:18,527 INFO L200 BlockEncoder]: SBE split 2 edges 15.02/8.65 [2019-03-28 11:58:18,532 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility 15.02/8.65 [2019-03-28 11:58:18,533 INFO L71 MaximizeFinalStates]: 0 new accepting states 15.02/8.65 [2019-03-28 11:58:18,542 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding 15.02/8.65 [2019-03-28 11:58:18,544 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states 15.02/8.65 [2019-03-28 11:58:18,545 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 15.02/8.65 [2019-03-28 11:58:18,546 INFO L71 MaximizeFinalStates]: 0 new accepting states 15.02/8.65 [2019-03-28 11:58:18,548 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding 15.02/8.65 [2019-03-28 11:58:18,549 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 15.02/8.65 [2019-03-28 11:58:18,549 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 15.02/8.65 [2019-03-28 11:58:18,549 INFO L71 MaximizeFinalStates]: 0 new accepting states 15.02/8.65 [2019-03-28 11:58:18,549 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 15.02/8.65 [2019-03-28 11:58:18,550 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 15.02/8.65 [2019-03-28 11:58:18,550 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges 15.02/8.65 [2019-03-28 11:58:18,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 11:58:18 BasicIcfg 15.02/8.65 [2019-03-28 11:58:18,551 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 15.02/8.65 [2019-03-28 11:58:18,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 15.02/8.65 [2019-03-28 11:58:18,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... 15.02/8.65 [2019-03-28 11:58:18,555 INFO L276 PluginConnector]: TraceAbstraction initialized 15.02/8.65 [2019-03-28 11:58:18,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 11:58:17" (1/4) ... 15.02/8.65 [2019-03-28 11:58:18,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6b5763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 11:58:18, skipping insertion in model container 15.02/8.65 [2019-03-28 11:58:18,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:58:18" (2/4) ... 15.02/8.65 [2019-03-28 11:58:18,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6b5763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 11:58:18, skipping insertion in model container 15.02/8.65 [2019-03-28 11:58:18,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 11:58:18" (3/4) ... 15.02/8.65 [2019-03-28 11:58:18,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6b5763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 11:58:18, skipping insertion in model container 15.02/8.65 [2019-03-28 11:58:18,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 11:58:18" (4/4) ... 15.02/8.65 [2019-03-28 11:58:18,559 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 15.02/8.65 [2019-03-28 11:58:18,569 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 15.02/8.65 [2019-03-28 11:58:18,577 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. 15.02/8.65 [2019-03-28 11:58:18,594 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. 15.02/8.65 [2019-03-28 11:58:18,622 INFO L133 ementStrategyFactory]: Using default assertion order modulation 15.02/8.65 [2019-03-28 11:58:18,623 INFO L382 AbstractCegarLoop]: Interprodecural is true 15.02/8.65 [2019-03-28 11:58:18,623 INFO L383 AbstractCegarLoop]: Hoare is true 15.02/8.65 [2019-03-28 11:58:18,623 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 15.02/8.65 [2019-03-28 11:58:18,624 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 15.02/8.65 [2019-03-28 11:58:18,624 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 15.02/8.65 [2019-03-28 11:58:18,624 INFO L387 AbstractCegarLoop]: Difference is false 15.02/8.65 [2019-03-28 11:58:18,624 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 15.02/8.65 [2019-03-28 11:58:18,624 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 15.02/8.65 [2019-03-28 11:58:18,638 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. 15.02/8.65 [2019-03-28 11:58:18,643 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. 15.02/8.65 [2019-03-28 11:58:18,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. 15.02/8.65 [2019-03-28 11:58:18,695 INFO L448 ceAbstractionStarter]: For program point L16(lines 16 20) no Hoare annotation was computed. 15.02/8.65 [2019-03-28 11:58:18,696 INFO L451 ceAbstractionStarter]: At program point L16-2(lines 15 21) the Hoare annotation is: true 15.02/8.65 [2019-03-28 11:58:18,696 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. 15.02/8.65 [2019-03-28 11:58:18,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 11:58:18 BasicIcfg 15.02/8.65 [2019-03-28 11:58:18,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 15.02/8.65 [2019-03-28 11:58:18,705 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 15.02/8.65 [2019-03-28 11:58:18,705 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 15.02/8.65 [2019-03-28 11:58:18,708 INFO L276 PluginConnector]: BuchiAutomizer initialized 15.02/8.65 [2019-03-28 11:58:18,709 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 15.02/8.65 [2019-03-28 11:58:18,709 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.03 11:58:17" (1/5) ... 15.02/8.65 [2019-03-28 11:58:18,710 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b643ba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 11:58:18, skipping insertion in model container 15.02/8.65 [2019-03-28 11:58:18,710 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 15.02/8.65 [2019-03-28 11:58:18,710 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:58:18" (2/5) ... 15.02/8.65 [2019-03-28 11:58:18,710 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b643ba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 11:58:18, skipping insertion in model container 15.02/8.65 [2019-03-28 11:58:18,711 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 15.02/8.65 [2019-03-28 11:58:18,711 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 11:58:18" (3/5) ... 15.02/8.65 [2019-03-28 11:58:18,711 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b643ba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 11:58:18, skipping insertion in model container 15.02/8.65 [2019-03-28 11:58:18,711 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 15.02/8.65 [2019-03-28 11:58:18,711 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 11:58:18" (4/5) ... 15.02/8.65 [2019-03-28 11:58:18,712 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b643ba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 11:58:18, skipping insertion in model container 15.02/8.65 [2019-03-28 11:58:18,712 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 15.02/8.65 [2019-03-28 11:58:18,712 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 11:58:18" (5/5) ... 15.02/8.65 [2019-03-28 11:58:18,713 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 15.02/8.65 [2019-03-28 11:58:18,741 INFO L133 ementStrategyFactory]: Using default assertion order modulation 15.02/8.65 [2019-03-28 11:58:18,742 INFO L374 BuchiCegarLoop]: Interprodecural is true 15.02/8.65 [2019-03-28 11:58:18,742 INFO L375 BuchiCegarLoop]: Hoare is true 15.02/8.65 [2019-03-28 11:58:18,742 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates 15.02/8.65 [2019-03-28 11:58:18,742 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE 15.02/8.65 [2019-03-28 11:58:18,742 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION 15.02/8.65 [2019-03-28 11:58:18,742 INFO L379 BuchiCegarLoop]: Difference is false 15.02/8.65 [2019-03-28 11:58:18,742 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA 15.02/8.65 [2019-03-28 11:58:18,743 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== 15.02/8.65 [2019-03-28 11:58:18,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. 15.02/8.65 [2019-03-28 11:58:18,764 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 15.02/8.65 [2019-03-28 11:58:18,764 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 15.02/8.65 [2019-03-28 11:58:18,764 INFO L119 BuchiIsEmpty]: Starting construction of run 15.02/8.65 [2019-03-28 11:58:18,770 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 15.02/8.65 [2019-03-28 11:58:18,770 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 15.02/8.65 [2019-03-28 11:58:18,770 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ 15.02/8.65 [2019-03-28 11:58:18,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. 15.02/8.65 [2019-03-28 11:58:18,771 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 15.02/8.65 [2019-03-28 11:58:18,771 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 15.02/8.65 [2019-03-28 11:58:18,771 INFO L119 BuchiIsEmpty]: Starting construction of run 15.02/8.65 [2019-03-28 11:58:18,771 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 15.02/8.65 [2019-03-28 11:58:18,771 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 15.02/8.65 [2019-03-28 11:58:18,776 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [50] ULTIMATE.startENTRY-->L16-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_11) (<= 0 v_ULTIMATE.start_main_~y~0_11)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_4|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 5#L16-2true 15.02/8.65 [2019-03-28 11:58:18,777 INFO L796 eck$LassoCheckResult]: Loop: 5#L16-2true [46] L16-2-->L16: Formula: (< (+ v_ULTIMATE.start_main_~y~0_10 2) v_ULTIMATE.start_main_~x~0_10) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[] 4#L16true [43] L16-->L16-2: Formula: (and (>= v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~y~0_6) (= (+ v_ULTIMATE.start_main_~y~0_6 1) v_ULTIMATE.start_main_~y~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~y~0] 5#L16-2true 15.02/8.65 [2019-03-28 11:58:18,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.02/8.65 [2019-03-28 11:58:18,783 INFO L82 PathProgramCache]: Analyzing trace with hash 81, now seen corresponding path program 1 times 15.02/8.65 [2019-03-28 11:58:18,785 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.02/8.65 [2019-03-28 11:58:18,786 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.02/8.65 [2019-03-28 11:58:18,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:18,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:18,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.02/8.65 [2019-03-28 11:58:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.02/8.65 [2019-03-28 11:58:18,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.02/8.65 [2019-03-28 11:58:18,855 INFO L82 PathProgramCache]: Analyzing trace with hash 2430, now seen corresponding path program 1 times 15.02/8.65 [2019-03-28 11:58:18,855 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.02/8.65 [2019-03-28 11:58:18,855 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.02/8.65 [2019-03-28 11:58:18,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:18,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:18,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.02/8.65 [2019-03-28 11:58:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.02/8.65 [2019-03-28 11:58:18,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.02/8.65 [2019-03-28 11:58:18,870 INFO L82 PathProgramCache]: Analyzing trace with hash 79310, now seen corresponding path program 1 times 15.02/8.65 [2019-03-28 11:58:18,870 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.02/8.65 [2019-03-28 11:58:18,870 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.02/8.65 [2019-03-28 11:58:18,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:18,871 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:18,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:18,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.02/8.65 [2019-03-28 11:58:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.02/8.65 [2019-03-28 11:58:18,927 INFO L216 LassoAnalysis]: Preferences: 15.02/8.65 [2019-03-28 11:58:18,928 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 15.02/8.65 [2019-03-28 11:58:18,929 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 15.02/8.65 [2019-03-28 11:58:18,929 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 15.02/8.65 [2019-03-28 11:58:18,929 INFO L127 ssoRankerPreferences]: Use exernal solver: true 15.02/8.65 [2019-03-28 11:58:18,929 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.02/8.65 [2019-03-28 11:58:18,929 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 15.02/8.65 [2019-03-28 11:58:18,929 INFO L130 ssoRankerPreferences]: Path of dumped script: 15.02/8.65 [2019-03-28 11:58:18,930 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 15.02/8.65 [2019-03-28 11:58:18,930 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 15.02/8.65 [2019-03-28 11:58:18,930 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 15.02/8.65 [2019-03-28 11:58:18,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.02/8.65 [2019-03-28 11:58:18,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.02/8.65 [2019-03-28 11:58:19,003 INFO L300 LassoAnalysis]: Preprocessing complete. 15.02/8.65 [2019-03-28 11:58:19,004 INFO L412 LassoAnalysis]: Checking for nontermination... 15.02/8.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.02/8.65 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.02/8.65 Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.02/8.65 [2019-03-28 11:58:19,011 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 15.02/8.65 [2019-03-28 11:58:19,012 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.02/8.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.02/8.65 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.02/8.65 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.02/8.65 [2019-03-28 11:58:19,046 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 15.02/8.65 [2019-03-28 11:58:19,046 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.02/8.65 [2019-03-28 11:58:19,246 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 15.02/8.65 [2019-03-28 11:58:19,249 INFO L216 LassoAnalysis]: Preferences: 15.02/8.65 [2019-03-28 11:58:19,249 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 15.02/8.65 [2019-03-28 11:58:19,249 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 15.02/8.65 [2019-03-28 11:58:19,249 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 15.02/8.65 [2019-03-28 11:58:19,249 INFO L127 ssoRankerPreferences]: Use exernal solver: false 15.02/8.65 [2019-03-28 11:58:19,249 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 15.02/8.65 [2019-03-28 11:58:19,249 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 15.02/8.65 [2019-03-28 11:58:19,250 INFO L130 ssoRankerPreferences]: Path of dumped script: 15.02/8.65 [2019-03-28 11:58:19,250 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 15.02/8.65 [2019-03-28 11:58:19,250 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 15.02/8.65 [2019-03-28 11:58:19,250 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 15.02/8.65 [2019-03-28 11:58:19,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.02/8.65 [2019-03-28 11:58:19,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.02/8.65 [2019-03-28 11:58:19,297 INFO L300 LassoAnalysis]: Preprocessing complete. 15.02/8.65 [2019-03-28 11:58:19,303 INFO L497 LassoAnalysis]: Using template 'affine'. 15.02/8.65 [2019-03-28 11:58:19,305 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 15.02/8.65 Termination analysis: LINEAR_WITH_GUESSES 15.02/8.65 Number of strict supporting invariants: 0 15.02/8.65 Number of non-strict supporting invariants: 1 15.02/8.65 Consider only non-deceasing supporting invariants: true 15.02/8.65 Simplify termination arguments: true 15.02/8.65 Simplify supporting invariants: trueOverapproximate stem: false 15.02/8.65 [2019-03-28 11:58:19,307 INFO L339 nArgumentSynthesizer]: Template has degree 0. 15.02/8.65 [2019-03-28 11:58:19,307 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 15.02/8.65 [2019-03-28 11:58:19,308 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 15.02/8.65 [2019-03-28 11:58:19,308 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 15.02/8.65 [2019-03-28 11:58:19,308 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 15.02/8.65 [2019-03-28 11:58:19,310 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 15.02/8.65 [2019-03-28 11:58:19,311 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 15.02/8.65 [2019-03-28 11:58:19,318 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 15.02/8.65 [2019-03-28 11:58:19,329 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. 15.02/8.65 [2019-03-28 11:58:19,329 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. 15.02/8.65 [2019-03-28 11:58:19,331 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 15.02/8.65 [2019-03-28 11:58:19,331 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 15.02/8.65 [2019-03-28 11:58:19,332 INFO L518 LassoAnalysis]: Proved termination. 15.02/8.65 [2019-03-28 11:58:19,333 INFO L520 LassoAnalysis]: Termination argument consisting of: 15.02/8.65 Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 15.02/8.65 Supporting invariants [] 15.02/8.65 [2019-03-28 11:58:19,334 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 15.02/8.65 [2019-03-28 11:58:19,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.02/8.65 [2019-03-28 11:58:19,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.02/8.65 [2019-03-28 11:58:19,372 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core 15.02/8.65 [2019-03-28 11:58:19,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.02/8.65 [2019-03-28 11:58:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.02/8.65 [2019-03-28 11:58:19,384 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core 15.02/8.65 [2019-03-28 11:58:19,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.02/8.65 [2019-03-28 11:58:19,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 15.02/8.65 [2019-03-28 11:58:19,400 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization 15.02/8.65 [2019-03-28 11:58:19,405 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates 15.02/8.65 [2019-03-28 11:58:19,406 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. 15.02/8.65 [2019-03-28 11:58:19,443 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 7 states and 15 transitions. Complement of second has 4 states. 15.02/8.65 [2019-03-28 11:58:19,444 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 15.02/8.65 [2019-03-28 11:58:19,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 15.02/8.65 [2019-03-28 11:58:19,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. 15.02/8.65 [2019-03-28 11:58:19,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 2 letters. 15.02/8.65 [2019-03-28 11:58:19,449 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.02/8.65 [2019-03-28 11:58:19,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. 15.02/8.65 [2019-03-28 11:58:19,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.02/8.65 [2019-03-28 11:58:19,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 4 letters. 15.02/8.65 [2019-03-28 11:58:19,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.02/8.65 [2019-03-28 11:58:19,457 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 15 transitions. 15.02/8.65 [2019-03-28 11:58:19,458 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 15.02/8.65 [2019-03-28 11:58:19,463 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 15 transitions. 15.02/8.65 [2019-03-28 11:58:19,464 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 15.02/8.65 [2019-03-28 11:58:19,465 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 15.02/8.65 [2019-03-28 11:58:19,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 15 transitions. 15.02/8.65 [2019-03-28 11:58:19,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 15.02/8.65 [2019-03-28 11:58:19,466 INFO L706 BuchiCegarLoop]: Abstraction has 7 states and 15 transitions. 15.02/8.65 [2019-03-28 11:58:19,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 15 transitions. 15.02/8.65 [2019-03-28 11:58:19,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. 15.02/8.65 [2019-03-28 11:58:19,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. 15.02/8.65 [2019-03-28 11:58:19,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 15 transitions. 15.02/8.65 [2019-03-28 11:58:19,496 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 15 transitions. 15.02/8.65 [2019-03-28 11:58:19,497 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 15 transitions. 15.02/8.65 [2019-03-28 11:58:19,497 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ 15.02/8.65 [2019-03-28 11:58:19,497 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 15 transitions. 15.02/8.65 [2019-03-28 11:58:19,497 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 15.02/8.65 [2019-03-28 11:58:19,498 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 15.02/8.65 [2019-03-28 11:58:19,498 INFO L119 BuchiIsEmpty]: Starting construction of run 15.02/8.65 [2019-03-28 11:58:19,498 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] 15.02/8.65 [2019-03-28 11:58:19,498 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 15.02/8.65 [2019-03-28 11:58:19,499 INFO L794 eck$LassoCheckResult]: Stem: 45#ULTIMATE.startENTRY [50] ULTIMATE.startENTRY-->L16-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_11) (<= 0 v_ULTIMATE.start_main_~y~0_11)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_4|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 46#L16-2 [47] L16-2-->L16: Formula: (< (+ v_ULTIMATE.start_main_~x~0_10 2) v_ULTIMATE.start_main_~y~0_10) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[] 41#L16 [31] L16-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 (+ v_ULTIMATE.start_main_~x~0_2 1)) (< v_ULTIMATE.start_main_~x~0_2 v_ULTIMATE.start_main_~y~0_1)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 42#L16-2 15.02/8.65 [2019-03-28 11:58:19,499 INFO L796 eck$LassoCheckResult]: Loop: 42#L16-2 [46] L16-2-->L16: Formula: (< (+ v_ULTIMATE.start_main_~y~0_10 2) v_ULTIMATE.start_main_~x~0_10) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[] 47#L16 [43] L16-->L16-2: Formula: (and (>= v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~y~0_6) (= (+ v_ULTIMATE.start_main_~y~0_6 1) v_ULTIMATE.start_main_~y~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~y~0] 42#L16-2 15.02/8.65 [2019-03-28 11:58:19,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.02/8.65 [2019-03-28 11:58:19,499 INFO L82 PathProgramCache]: Analyzing trace with hash 79329, now seen corresponding path program 1 times 15.02/8.65 [2019-03-28 11:58:19,500 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.02/8.65 [2019-03-28 11:58:19,500 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.02/8.65 [2019-03-28 11:58:19,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:19,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:19,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.02/8.65 [2019-03-28 11:58:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.02/8.65 [2019-03-28 11:58:19,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.02/8.65 [2019-03-28 11:58:19,509 INFO L82 PathProgramCache]: Analyzing trace with hash 2430, now seen corresponding path program 2 times 15.02/8.65 [2019-03-28 11:58:19,509 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.02/8.65 [2019-03-28 11:58:19,509 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.02/8.65 [2019-03-28 11:58:19,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:19,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:19,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.02/8.65 [2019-03-28 11:58:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.02/8.65 [2019-03-28 11:58:19,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.02/8.65 [2019-03-28 11:58:19,515 INFO L82 PathProgramCache]: Analyzing trace with hash 76236638, now seen corresponding path program 1 times 15.02/8.65 [2019-03-28 11:58:19,516 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.02/8.65 [2019-03-28 11:58:19,516 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.02/8.65 [2019-03-28 11:58:19,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:19,517 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:19,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.02/8.65 [2019-03-28 11:58:19,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 15.02/8.65 [2019-03-28 11:58:19,561 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 15.02/8.65 [2019-03-28 11:58:19,561 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 15.02/8.65 [2019-03-28 11:58:19,584 INFO L216 LassoAnalysis]: Preferences: 15.02/8.65 [2019-03-28 11:58:19,584 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 15.02/8.65 [2019-03-28 11:58:19,584 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 15.02/8.65 [2019-03-28 11:58:19,584 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 15.02/8.65 [2019-03-28 11:58:19,585 INFO L127 ssoRankerPreferences]: Use exernal solver: true 15.02/8.65 [2019-03-28 11:58:19,585 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.02/8.65 [2019-03-28 11:58:19,585 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 15.02/8.65 [2019-03-28 11:58:19,585 INFO L130 ssoRankerPreferences]: Path of dumped script: 15.02/8.65 [2019-03-28 11:58:19,585 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 15.02/8.65 [2019-03-28 11:58:19,585 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 15.02/8.65 [2019-03-28 11:58:19,585 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 15.02/8.65 [2019-03-28 11:58:19,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.02/8.65 [2019-03-28 11:58:19,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.02/8.65 [2019-03-28 11:58:19,613 INFO L300 LassoAnalysis]: Preprocessing complete. 15.02/8.65 [2019-03-28 11:58:19,613 INFO L412 LassoAnalysis]: Checking for nontermination... 15.02/8.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.02/8.65 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.02/8.65 Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.02/8.65 [2019-03-28 11:58:19,618 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 15.02/8.65 [2019-03-28 11:58:19,618 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.02/8.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.02/8.65 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.02/8.65 Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.02/8.65 [2019-03-28 11:58:19,650 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 15.02/8.65 [2019-03-28 11:58:19,650 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.02/8.65 [2019-03-28 11:58:19,847 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 15.02/8.65 [2019-03-28 11:58:19,850 INFO L216 LassoAnalysis]: Preferences: 15.02/8.65 [2019-03-28 11:58:19,850 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 15.02/8.65 [2019-03-28 11:58:19,850 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 15.02/8.65 [2019-03-28 11:58:19,850 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 15.02/8.65 [2019-03-28 11:58:19,850 INFO L127 ssoRankerPreferences]: Use exernal solver: false 15.02/8.65 [2019-03-28 11:58:19,850 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 15.02/8.65 [2019-03-28 11:58:19,850 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 15.02/8.65 [2019-03-28 11:58:19,851 INFO L130 ssoRankerPreferences]: Path of dumped script: 15.02/8.65 [2019-03-28 11:58:19,851 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 15.02/8.65 [2019-03-28 11:58:19,851 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 15.02/8.65 [2019-03-28 11:58:19,851 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 15.02/8.65 [2019-03-28 11:58:19,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.02/8.65 [2019-03-28 11:58:19,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.02/8.65 [2019-03-28 11:58:19,880 INFO L300 LassoAnalysis]: Preprocessing complete. 15.02/8.65 [2019-03-28 11:58:19,880 INFO L497 LassoAnalysis]: Using template 'affine'. 15.02/8.65 [2019-03-28 11:58:19,880 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 15.02/8.65 Termination analysis: LINEAR_WITH_GUESSES 15.02/8.65 Number of strict supporting invariants: 0 15.02/8.65 Number of non-strict supporting invariants: 1 15.02/8.65 Consider only non-deceasing supporting invariants: true 15.02/8.65 Simplify termination arguments: true 15.02/8.65 Simplify supporting invariants: trueOverapproximate stem: false 15.02/8.65 [2019-03-28 11:58:19,881 INFO L339 nArgumentSynthesizer]: Template has degree 0. 15.02/8.65 [2019-03-28 11:58:19,881 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 15.02/8.65 [2019-03-28 11:58:19,882 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 15.02/8.65 [2019-03-28 11:58:19,882 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 15.02/8.65 [2019-03-28 11:58:19,882 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 15.02/8.65 [2019-03-28 11:58:19,883 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 15.02/8.65 [2019-03-28 11:58:19,883 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 15.02/8.65 [2019-03-28 11:58:19,889 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 15.02/8.65 [2019-03-28 11:58:19,895 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. 15.02/8.65 [2019-03-28 11:58:19,895 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. 15.02/8.65 [2019-03-28 11:58:19,896 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 15.02/8.65 [2019-03-28 11:58:19,896 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 15.02/8.65 [2019-03-28 11:58:19,896 INFO L518 LassoAnalysis]: Proved termination. 15.02/8.65 [2019-03-28 11:58:19,896 INFO L520 LassoAnalysis]: Termination argument consisting of: 15.02/8.65 Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 15.02/8.65 Supporting invariants [] 15.02/8.65 [2019-03-28 11:58:19,897 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 15.02/8.65 [2019-03-28 11:58:19,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.02/8.65 [2019-03-28 11:58:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.02/8.65 [2019-03-28 11:58:19,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core 15.02/8.65 [2019-03-28 11:58:19,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.02/8.65 [2019-03-28 11:58:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.02/8.65 [2019-03-28 11:58:19,932 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core 15.02/8.65 [2019-03-28 11:58:19,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.02/8.65 [2019-03-28 11:58:19,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 15.02/8.65 [2019-03-28 11:58:19,934 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization 15.02/8.65 [2019-03-28 11:58:19,934 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates 15.02/8.65 [2019-03-28 11:58:19,934 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 15 transitions. cyclomatic complexity: 10 Second operand 3 states. 15.02/8.65 [2019-03-28 11:58:19,961 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 15 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 9 states and 21 transitions. Complement of second has 4 states. 15.02/8.65 [2019-03-28 11:58:19,962 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 15.02/8.65 [2019-03-28 11:58:19,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 15.02/8.65 [2019-03-28 11:58:19,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. 15.02/8.65 [2019-03-28 11:58:19,963 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. 15.02/8.65 [2019-03-28 11:58:19,964 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.02/8.65 [2019-03-28 11:58:19,964 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. 15.02/8.65 [2019-03-28 11:58:19,964 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.02/8.65 [2019-03-28 11:58:19,964 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. 15.02/8.65 [2019-03-28 11:58:19,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.02/8.65 [2019-03-28 11:58:19,966 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 21 transitions. 15.02/8.65 [2019-03-28 11:58:19,967 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 15.02/8.65 [2019-03-28 11:58:19,968 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 21 transitions. 15.02/8.65 [2019-03-28 11:58:19,968 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 15.02/8.65 [2019-03-28 11:58:19,968 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 15.02/8.65 [2019-03-28 11:58:19,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 21 transitions. 15.02/8.65 [2019-03-28 11:58:19,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 15.02/8.65 [2019-03-28 11:58:19,968 INFO L706 BuchiCegarLoop]: Abstraction has 9 states and 21 transitions. 15.02/8.65 [2019-03-28 11:58:19,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 21 transitions. 15.02/8.65 [2019-03-28 11:58:19,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 5. 15.02/8.65 [2019-03-28 11:58:19,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. 15.02/8.65 [2019-03-28 11:58:19,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. 15.02/8.65 [2019-03-28 11:58:19,970 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 11 transitions. 15.02/8.65 [2019-03-28 11:58:19,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. 15.02/8.65 [2019-03-28 11:58:19,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 15.02/8.65 [2019-03-28 11:58:19,973 INFO L87 Difference]: Start difference. First operand 5 states and 11 transitions. Second operand 4 states. 15.02/8.65 [2019-03-28 11:58:20,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 15.02/8.65 [2019-03-28 11:58:20,005 INFO L93 Difference]: Finished difference Result 8 states and 14 transitions. 15.02/8.65 [2019-03-28 11:58:20,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 15.02/8.65 [2019-03-28 11:58:20,006 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 14 transitions. 15.02/8.65 [2019-03-28 11:58:20,007 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 15.02/8.65 [2019-03-28 11:58:20,008 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 7 states and 11 transitions. 15.02/8.65 [2019-03-28 11:58:20,008 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 15.02/8.65 [2019-03-28 11:58:20,008 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 15.02/8.65 [2019-03-28 11:58:20,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 11 transitions. 15.02/8.65 [2019-03-28 11:58:20,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 15.02/8.65 [2019-03-28 11:58:20,008 INFO L706 BuchiCegarLoop]: Abstraction has 7 states and 11 transitions. 15.02/8.65 [2019-03-28 11:58:20,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 11 transitions. 15.02/8.65 [2019-03-28 11:58:20,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. 15.02/8.65 [2019-03-28 11:58:20,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. 15.02/8.65 [2019-03-28 11:58:20,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 11 transitions. 15.02/8.65 [2019-03-28 11:58:20,010 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 11 transitions. 15.02/8.65 [2019-03-28 11:58:20,010 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 11 transitions. 15.02/8.65 [2019-03-28 11:58:20,010 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ 15.02/8.65 [2019-03-28 11:58:20,010 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 11 transitions. 15.02/8.65 [2019-03-28 11:58:20,011 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 15.02/8.65 [2019-03-28 11:58:20,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 15.02/8.65 [2019-03-28 11:58:20,011 INFO L119 BuchiIsEmpty]: Starting construction of run 15.02/8.65 [2019-03-28 11:58:20,011 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 15.02/8.65 [2019-03-28 11:58:20,011 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 15.02/8.65 [2019-03-28 11:58:20,012 INFO L794 eck$LassoCheckResult]: Stem: 106#ULTIMATE.startENTRY [50] ULTIMATE.startENTRY-->L16-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_11) (<= 0 v_ULTIMATE.start_main_~y~0_11)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_4|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 107#L16-2 15.02/8.65 [2019-03-28 11:58:20,012 INFO L796 eck$LassoCheckResult]: Loop: 107#L16-2 [46] L16-2-->L16: Formula: (< (+ v_ULTIMATE.start_main_~y~0_10 2) v_ULTIMATE.start_main_~x~0_10) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[] 108#L16 [31] L16-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 (+ v_ULTIMATE.start_main_~x~0_2 1)) (< v_ULTIMATE.start_main_~x~0_2 v_ULTIMATE.start_main_~y~0_1)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 107#L16-2 15.02/8.65 [2019-03-28 11:58:20,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.02/8.65 [2019-03-28 11:58:20,012 INFO L82 PathProgramCache]: Analyzing trace with hash 81, now seen corresponding path program 2 times 15.02/8.65 [2019-03-28 11:58:20,012 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.02/8.65 [2019-03-28 11:58:20,013 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.02/8.65 [2019-03-28 11:58:20,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:20,014 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:20,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.02/8.65 [2019-03-28 11:58:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.02/8.65 [2019-03-28 11:58:20,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.02/8.65 [2019-03-28 11:58:20,018 INFO L82 PathProgramCache]: Analyzing trace with hash 2418, now seen corresponding path program 1 times 15.02/8.65 [2019-03-28 11:58:20,018 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.02/8.65 [2019-03-28 11:58:20,018 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.02/8.65 [2019-03-28 11:58:20,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:20,019 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:20,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.02/8.65 [2019-03-28 11:58:20,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 15.02/8.65 [2019-03-28 11:58:20,028 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 15.02/8.65 [2019-03-28 11:58:20,028 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 15.02/8.65 [2019-03-28 11:58:20,028 INFO L811 eck$LassoCheckResult]: loop already infeasible 15.02/8.65 [2019-03-28 11:58:20,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. 15.02/8.65 [2019-03-28 11:58:20,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 15.02/8.65 [2019-03-28 11:58:20,029 INFO L87 Difference]: Start difference. First operand 7 states and 11 transitions. cyclomatic complexity: 6 Second operand 3 states. 15.02/8.65 [2019-03-28 11:58:20,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 15.02/8.65 [2019-03-28 11:58:20,037 INFO L93 Difference]: Finished difference Result 7 states and 10 transitions. 15.02/8.65 [2019-03-28 11:58:20,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 15.02/8.65 [2019-03-28 11:58:20,039 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. 15.02/8.65 [2019-03-28 11:58:20,039 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 15.02/8.65 [2019-03-28 11:58:20,040 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 8 transitions. 15.02/8.65 [2019-03-28 11:58:20,040 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 15.02/8.65 [2019-03-28 11:58:20,040 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 15.02/8.65 [2019-03-28 11:58:20,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. 15.02/8.65 [2019-03-28 11:58:20,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 15.02/8.65 [2019-03-28 11:58:20,041 INFO L706 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. 15.02/8.65 [2019-03-28 11:58:20,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. 15.02/8.65 [2019-03-28 11:58:20,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. 15.02/8.65 [2019-03-28 11:58:20,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. 15.02/8.65 [2019-03-28 11:58:20,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. 15.02/8.65 [2019-03-28 11:58:20,042 INFO L729 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. 15.02/8.65 [2019-03-28 11:58:20,042 INFO L609 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. 15.02/8.65 [2019-03-28 11:58:20,042 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ 15.02/8.65 [2019-03-28 11:58:20,042 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. 15.02/8.65 [2019-03-28 11:58:20,043 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 15.02/8.65 [2019-03-28 11:58:20,043 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 15.02/8.65 [2019-03-28 11:58:20,043 INFO L119 BuchiIsEmpty]: Starting construction of run 15.02/8.65 [2019-03-28 11:58:20,043 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 15.02/8.65 [2019-03-28 11:58:20,043 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 15.02/8.65 [2019-03-28 11:58:20,044 INFO L794 eck$LassoCheckResult]: Stem: 126#ULTIMATE.startENTRY [50] ULTIMATE.startENTRY-->L16-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_11) (<= 0 v_ULTIMATE.start_main_~y~0_11)) 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_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_4|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_4|, 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_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 127#L16-2 [47] L16-2-->L16: Formula: (< (+ v_ULTIMATE.start_main_~x~0_10 2) v_ULTIMATE.start_main_~y~0_10) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[] 128#L16 15.02/8.65 [2019-03-28 11:58:20,044 INFO L796 eck$LassoCheckResult]: Loop: 128#L16 [31] L16-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 (+ v_ULTIMATE.start_main_~x~0_2 1)) (< v_ULTIMATE.start_main_~x~0_2 v_ULTIMATE.start_main_~y~0_1)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 129#L16-2 [47] L16-2-->L16: Formula: (< (+ v_ULTIMATE.start_main_~x~0_10 2) v_ULTIMATE.start_main_~y~0_10) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[] 128#L16 15.02/8.65 [2019-03-28 11:58:20,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.02/8.65 [2019-03-28 11:58:20,044 INFO L82 PathProgramCache]: Analyzing trace with hash 2558, now seen corresponding path program 1 times 15.02/8.65 [2019-03-28 11:58:20,044 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.02/8.65 [2019-03-28 11:58:20,045 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.02/8.65 [2019-03-28 11:58:20,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:20,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:20,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:20,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.02/8.65 [2019-03-28 11:58:20,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.02/8.65 [2019-03-28 11:58:20,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.02/8.65 [2019-03-28 11:58:20,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1969, now seen corresponding path program 1 times 15.02/8.65 [2019-03-28 11:58:20,050 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.02/8.65 [2019-03-28 11:58:20,050 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.02/8.65 [2019-03-28 11:58:20,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:20,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:20,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:20,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.02/8.65 [2019-03-28 11:58:20,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.02/8.65 [2019-03-28 11:58:20,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.02/8.65 [2019-03-28 11:58:20,056 INFO L82 PathProgramCache]: Analyzing trace with hash 2459246, now seen corresponding path program 2 times 15.02/8.65 [2019-03-28 11:58:20,056 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.02/8.65 [2019-03-28 11:58:20,056 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.02/8.65 [2019-03-28 11:58:20,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:20,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:20,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.02/8.65 [2019-03-28 11:58:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.02/8.65 [2019-03-28 11:58:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.02/8.65 [2019-03-28 11:58:20,078 INFO L216 LassoAnalysis]: Preferences: 15.02/8.65 [2019-03-28 11:58:20,078 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 15.02/8.65 [2019-03-28 11:58:20,078 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 15.02/8.65 [2019-03-28 11:58:20,078 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 15.02/8.65 [2019-03-28 11:58:20,079 INFO L127 ssoRankerPreferences]: Use exernal solver: true 15.02/8.65 [2019-03-28 11:58:20,079 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.02/8.65 [2019-03-28 11:58:20,079 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 15.02/8.65 [2019-03-28 11:58:20,079 INFO L130 ssoRankerPreferences]: Path of dumped script: 15.02/8.65 [2019-03-28 11:58:20,079 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop 15.02/8.65 [2019-03-28 11:58:20,079 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 15.02/8.65 [2019-03-28 11:58:20,079 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 15.02/8.65 [2019-03-28 11:58:20,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.02/8.65 [2019-03-28 11:58:20,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.02/8.65 [2019-03-28 11:58:20,115 INFO L300 LassoAnalysis]: Preprocessing complete. 15.02/8.65 [2019-03-28 11:58:20,115 INFO L412 LassoAnalysis]: Checking for nontermination... 15.02/8.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.02/8.65 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.02/8.65 Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.02/8.65 [2019-03-28 11:58:20,121 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 15.02/8.65 [2019-03-28 11:58:20,121 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.02/8.65 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.02/8.65 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.02/8.65 Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.02/8.65 [2019-03-28 11:58:20,152 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 15.02/8.65 [2019-03-28 11:58:20,152 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.02/8.65 [2019-03-28 11:58:20,687 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 15.02/8.65 [2019-03-28 11:58:20,691 INFO L216 LassoAnalysis]: Preferences: 15.02/8.65 [2019-03-28 11:58:20,691 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 15.02/8.65 [2019-03-28 11:58:20,691 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 15.02/8.65 [2019-03-28 11:58:20,691 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 15.02/8.65 [2019-03-28 11:58:20,691 INFO L127 ssoRankerPreferences]: Use exernal solver: false 15.02/8.65 [2019-03-28 11:58:20,691 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 15.02/8.65 [2019-03-28 11:58:20,691 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 15.02/8.65 [2019-03-28 11:58:20,691 INFO L130 ssoRankerPreferences]: Path of dumped script: 15.02/8.65 [2019-03-28 11:58:20,692 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop 15.02/8.65 [2019-03-28 11:58:20,692 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 15.02/8.65 [2019-03-28 11:58:20,692 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 15.02/8.65 [2019-03-28 11:58:20,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.02/8.65 [2019-03-28 11:58:20,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.02/8.65 [2019-03-28 11:58:20,725 INFO L300 LassoAnalysis]: Preprocessing complete. 15.02/8.65 [2019-03-28 11:58:20,725 INFO L497 LassoAnalysis]: Using template 'affine'. 15.02/8.65 [2019-03-28 11:58:20,726 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 15.02/8.65 Termination analysis: LINEAR_WITH_GUESSES 15.02/8.65 Number of strict supporting invariants: 0 15.02/8.65 Number of non-strict supporting invariants: 1 15.02/8.65 Consider only non-deceasing supporting invariants: true 15.02/8.65 Simplify termination arguments: true 15.02/8.65 Simplify supporting invariants: trueOverapproximate stem: false 15.02/8.65 [2019-03-28 11:58:20,726 INFO L339 nArgumentSynthesizer]: Template has degree 0. 15.02/8.65 [2019-03-28 11:58:20,727 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 15.02/8.65 [2019-03-28 11:58:20,727 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 15.02/8.65 [2019-03-28 11:58:20,727 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 15.02/8.65 [2019-03-28 11:58:20,728 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 15.02/8.65 [2019-03-28 11:58:20,728 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 15.02/8.65 [2019-03-28 11:58:20,729 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 15.02/8.65 [2019-03-28 11:58:20,734 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 15.02/8.65 [2019-03-28 11:58:20,739 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. 15.02/8.65 [2019-03-28 11:58:20,739 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. 15.02/8.65 [2019-03-28 11:58:20,740 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 15.02/8.65 [2019-03-28 11:58:20,740 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 15.02/8.65 [2019-03-28 11:58:20,740 INFO L518 LassoAnalysis]: Proved termination. 15.02/8.65 [2019-03-28 11:58:20,740 INFO L520 LassoAnalysis]: Termination argument consisting of: 15.02/8.65 Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~x~0 15.02/8.65 Supporting invariants [] 15.02/8.65 [2019-03-28 11:58:20,741 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 15.02/8.65 [2019-03-28 11:58:20,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.02/8.65 [2019-03-28 11:58:20,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.02/8.65 [2019-03-28 11:58:20,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core 15.02/8.65 [2019-03-28 11:58:20,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.02/8.65 [2019-03-28 11:58:20,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.02/8.65 [2019-03-28 11:58:20,767 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core 15.02/8.65 [2019-03-28 11:58:20,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.02/8.65 [2019-03-28 11:58:20,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 15.02/8.65 [2019-03-28 11:58:20,783 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization 15.02/8.65 [2019-03-28 11:58:20,784 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 15.02/8.65 [2019-03-28 11:58:20,784 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 3 states. 15.02/8.65 [2019-03-28 11:58:20,796 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 8 states and 10 transitions. Complement of second has 4 states. 15.02/8.65 [2019-03-28 11:58:20,796 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 15.02/8.65 [2019-03-28 11:58:20,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 15.02/8.65 [2019-03-28 11:58:20,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. 15.02/8.65 [2019-03-28 11:58:20,797 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 2 letters. Loop has 2 letters. 15.02/8.65 [2019-03-28 11:58:20,797 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.02/8.65 [2019-03-28 11:58:20,797 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. 15.02/8.65 [2019-03-28 11:58:20,798 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.02/8.65 [2019-03-28 11:58:20,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 2 letters. Loop has 4 letters. 15.02/8.65 [2019-03-28 11:58:20,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.02/8.65 [2019-03-28 11:58:20,800 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 10 transitions. 15.02/8.65 [2019-03-28 11:58:20,800 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 15.02/8.65 [2019-03-28 11:58:20,800 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. 15.02/8.65 [2019-03-28 11:58:20,800 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 15.02/8.65 [2019-03-28 11:58:20,801 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 15.02/8.65 [2019-03-28 11:58:20,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. 15.02/8.65 [2019-03-28 11:58:20,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 15.02/8.65 [2019-03-28 11:58:20,801 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 15.02/8.65 [2019-03-28 11:58:20,801 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 15.02/8.65 [2019-03-28 11:58:20,801 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 15.02/8.65 [2019-03-28 11:58:20,801 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ 15.02/8.65 [2019-03-28 11:58:20,802 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. 15.02/8.65 [2019-03-28 11:58:20,802 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 15.02/8.65 [2019-03-28 11:58:20,802 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true 15.02/8.65 [2019-03-28 11:58:20,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 11:58:20 BasicIcfg 15.02/8.65 [2019-03-28 11:58:20,808 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 15.02/8.65 [2019-03-28 11:58:20,809 INFO L168 Benchmark]: Toolchain (without parser) took 2945.12 ms. Allocated memory was 649.6 MB in the beginning and 676.3 MB in the end (delta: 26.7 MB). Free memory was 559.9 MB in the beginning and 471.8 MB in the end (delta: 88.1 MB). Peak memory consumption was 114.8 MB. Max. memory is 50.3 GB. 15.02/8.65 [2019-03-28 11:58:20,811 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 580.1 MB. There was no memory consumed. Max. memory is 50.3 GB. 15.02/8.65 [2019-03-28 11:58:20,811 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.67 ms. Allocated memory is still 649.6 MB. Free memory was 559.9 MB in the beginning and 548.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 50.3 GB. 15.02/8.65 [2019-03-28 11:58:20,812 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.96 ms. Allocated memory was 649.6 MB in the beginning and 676.3 MB in the end (delta: 26.7 MB). Free memory was 548.9 MB in the beginning and 642.6 MB in the end (delta: -93.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 50.3 GB. 15.02/8.65 [2019-03-28 11:58:20,812 INFO L168 Benchmark]: Boogie Preprocessor took 21.43 ms. Allocated memory is still 676.3 MB. Free memory was 642.6 MB in the beginning and 640.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 50.3 GB. 15.02/8.65 [2019-03-28 11:58:20,813 INFO L168 Benchmark]: RCFGBuilder took 248.11 ms. Allocated memory is still 676.3 MB. Free memory was 640.9 MB in the beginning and 626.6 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. 15.02/8.65 [2019-03-28 11:58:20,814 INFO L168 Benchmark]: BlockEncodingV2 took 80.39 ms. Allocated memory is still 676.3 MB. Free memory was 626.6 MB in the beginning and 621.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 15.02/8.65 [2019-03-28 11:58:20,814 INFO L168 Benchmark]: TraceAbstraction took 152.59 ms. Allocated memory is still 676.3 MB. Free memory was 621.2 MB in the beginning and 611.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. 15.02/8.65 [2019-03-28 11:58:20,815 INFO L168 Benchmark]: BuchiAutomizer took 2103.69 ms. Allocated memory is still 676.3 MB. Free memory was 611.7 MB in the beginning and 471.8 MB in the end (delta: 140.0 MB). Peak memory consumption was 140.0 MB. Max. memory is 50.3 GB. 15.02/8.65 [2019-03-28 11:58:20,819 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 15.02/8.65 --- Results --- 15.02/8.65 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 15.02/8.65 - StatisticsResult: Initial Icfg 15.02/8.65 8 locations, 11 edges 15.02/8.65 - StatisticsResult: Encoded RCFG 15.02/8.65 3 locations, 5 edges 15.02/8.65 * Results from de.uni_freiburg.informatik.ultimate.core: 15.02/8.65 - StatisticsResult: Toolchain Benchmarks 15.02/8.65 Benchmark results are: 15.02/8.65 * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 580.1 MB. There was no memory consumed. Max. memory is 50.3 GB. 15.02/8.65 * CACSL2BoogieTranslator took 231.67 ms. Allocated memory is still 649.6 MB. Free memory was 559.9 MB in the beginning and 548.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 50.3 GB. 15.02/8.65 * Boogie Procedure Inliner took 101.96 ms. Allocated memory was 649.6 MB in the beginning and 676.3 MB in the end (delta: 26.7 MB). Free memory was 548.9 MB in the beginning and 642.6 MB in the end (delta: -93.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 50.3 GB. 15.02/8.65 * Boogie Preprocessor took 21.43 ms. Allocated memory is still 676.3 MB. Free memory was 642.6 MB in the beginning and 640.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 50.3 GB. 15.02/8.65 * RCFGBuilder took 248.11 ms. Allocated memory is still 676.3 MB. Free memory was 640.9 MB in the beginning and 626.6 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. 15.02/8.65 * BlockEncodingV2 took 80.39 ms. Allocated memory is still 676.3 MB. Free memory was 626.6 MB in the beginning and 621.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 15.02/8.65 * TraceAbstraction took 152.59 ms. Allocated memory is still 676.3 MB. Free memory was 621.2 MB in the beginning and 611.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. 15.02/8.65 * BuchiAutomizer took 2103.69 ms. Allocated memory is still 676.3 MB. Free memory was 611.7 MB in the beginning and 471.8 MB in the end (delta: 140.0 MB). Peak memory consumption was 140.0 MB. Max. memory is 50.3 GB. 15.02/8.65 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 15.02/8.65 - AllSpecificationsHoldResult: All specifications hold 15.02/8.65 We were not able to verify any specifiation because the program does not contain any specification. 15.02/8.65 - InvariantResult [Line: 15]: Loop Invariant 15.02/8.65 Derived loop invariant: 1 15.02/8.65 - StatisticsResult: Ultimate Automizer benchmark data 15.02/8.65 CFG has 1 procedures, 3 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available 15.02/8.65 - StatisticsResult: Constructed decomposition of program 15.02/8.65 Your program was decomposed into 5 terminating modules (2 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function -1 * y + x and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 3 locations. One nondeterministic module has affine ranking function y + -1 * x and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. 15.02/8.65 - StatisticsResult: Timing statistics 15.02/8.65 BüchiAutomizer plugin needed 2.0s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 20 SDslu, 0 SDs, 0 SdLazy, 50 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 27ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s 15.02/8.65 - TerminationAnalysisResult: Termination proven 15.02/8.65 Buchi Automizer proved that your program is terminating 15.02/8.65 RESULT: Ultimate proved your program to be correct! 15.02/8.65 !SESSION 2019-03-28 11:58:14.159 ----------------------------------------------- 15.02/8.65 eclipse.buildId=unknown 15.02/8.65 java.version=1.8.0_181 15.02/8.65 java.vendor=Oracle Corporation 15.02/8.65 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 15.02/8.65 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 15.02/8.65 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 15.02/8.65 15.02/8.65 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 11:58:21.052 15.02/8.65 !MESSAGE The workspace will exit with unsaved changes in this session. 15.02/8.65 Received shutdown request... 15.02/8.65 Ultimate: 15.02/8.65 GTK+ Version Check 15.02/8.65 EOF