15.00/7.00 YES 15.00/7.00 15.00/7.00 Ultimate: Cannot open display: 15.00/7.00 This is Ultimate 0.1.24-8dc7c08-m 15.00/7.00 [2019-03-28 22:57:15,761 INFO L170 SettingsManager]: Resetting all preferences to default values... 15.00/7.00 [2019-03-28 22:57:15,764 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 15.00/7.00 [2019-03-28 22:57:15,775 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 15.00/7.00 [2019-03-28 22:57:15,776 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 15.00/7.00 [2019-03-28 22:57:15,776 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 15.00/7.00 [2019-03-28 22:57:15,778 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 15.00/7.00 [2019-03-28 22:57:15,779 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 15.00/7.00 [2019-03-28 22:57:15,781 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 15.00/7.00 [2019-03-28 22:57:15,781 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 15.00/7.00 [2019-03-28 22:57:15,782 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 15.00/7.00 [2019-03-28 22:57:15,782 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 15.00/7.00 [2019-03-28 22:57:15,783 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 15.00/7.00 [2019-03-28 22:57:15,784 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 15.00/7.00 [2019-03-28 22:57:15,785 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 15.00/7.00 [2019-03-28 22:57:15,786 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 15.00/7.00 [2019-03-28 22:57:15,787 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 15.00/7.00 [2019-03-28 22:57:15,789 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 15.00/7.00 [2019-03-28 22:57:15,791 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 15.00/7.00 [2019-03-28 22:57:15,792 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 15.00/7.00 [2019-03-28 22:57:15,793 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 15.00/7.00 [2019-03-28 22:57:15,794 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 15.00/7.00 [2019-03-28 22:57:15,796 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 15.00/7.00 [2019-03-28 22:57:15,797 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 15.00/7.00 [2019-03-28 22:57:15,797 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 15.00/7.00 [2019-03-28 22:57:15,798 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 15.00/7.00 [2019-03-28 22:57:15,798 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 15.00/7.00 [2019-03-28 22:57:15,799 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 15.00/7.00 [2019-03-28 22:57:15,799 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 15.00/7.00 [2019-03-28 22:57:15,800 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 15.00/7.00 [2019-03-28 22:57:15,800 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 15.00/7.00 [2019-03-28 22:57:15,801 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 15.00/7.00 [2019-03-28 22:57:15,802 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 15.00/7.00 [2019-03-28 22:57:15,802 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 15.00/7.00 [2019-03-28 22:57:15,803 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 15.00/7.00 [2019-03-28 22:57:15,803 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 15.00/7.00 [2019-03-28 22:57:15,803 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 15.00/7.00 [2019-03-28 22:57:15,804 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 15.00/7.00 [2019-03-28 22:57:15,805 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 15.00/7.00 [2019-03-28 22:57:15,805 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf 15.00/7.00 [2019-03-28 22:57:15,819 INFO L110 SettingsManager]: Loading preferences was successful 15.00/7.00 [2019-03-28 22:57:15,820 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 15.00/7.00 [2019-03-28 22:57:15,821 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 15.00/7.00 [2019-03-28 22:57:15,821 INFO L133 SettingsManager]: * Rewrite not-equals=true 15.00/7.00 [2019-03-28 22:57:15,821 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 15.00/7.00 [2019-03-28 22:57:15,821 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 15.00/7.00 [2019-03-28 22:57:15,822 INFO L133 SettingsManager]: * Use SBE=true 15.00/7.00 [2019-03-28 22:57:15,822 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 15.00/7.00 [2019-03-28 22:57:15,822 INFO L133 SettingsManager]: * Use old map elimination=false 15.00/7.00 [2019-03-28 22:57:15,822 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 15.00/7.00 [2019-03-28 22:57:15,822 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 15.00/7.00 [2019-03-28 22:57:15,823 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 15.00/7.00 [2019-03-28 22:57:15,823 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 15.00/7.00 [2019-03-28 22:57:15,823 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 15.00/7.00 [2019-03-28 22:57:15,823 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.00/7.00 [2019-03-28 22:57:15,823 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 15.00/7.00 [2019-03-28 22:57:15,824 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 15.00/7.00 [2019-03-28 22:57:15,824 INFO L133 SettingsManager]: * Check division by zero=IGNORE 15.00/7.00 [2019-03-28 22:57:15,824 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 15.00/7.00 [2019-03-28 22:57:15,824 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 15.00/7.00 [2019-03-28 22:57:15,824 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 15.00/7.00 [2019-03-28 22:57:15,825 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 15.00/7.00 [2019-03-28 22:57:15,825 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 15.00/7.00 [2019-03-28 22:57:15,825 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 15.00/7.00 [2019-03-28 22:57:15,825 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 15.00/7.00 [2019-03-28 22:57:15,825 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 15.00/7.00 [2019-03-28 22:57:15,826 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 15.00/7.00 [2019-03-28 22:57:15,826 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 15.00/7.00 [2019-03-28 22:57:15,826 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 15.00/7.00 [2019-03-28 22:57:15,852 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 15.00/7.00 [2019-03-28 22:57:15,865 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 15.00/7.00 [2019-03-28 22:57:15,869 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 15.00/7.00 [2019-03-28 22:57:15,870 INFO L271 PluginConnector]: Initializing CDTParser... 15.00/7.00 [2019-03-28 22:57:15,870 INFO L276 PluginConnector]: CDTParser initialized 15.00/7.00 [2019-03-28 22:57:15,871 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c 15.00/7.00 [2019-03-28 22:57:15,934 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/7f7b902081214837ac19459aa5a235e5/FLAG44026badc 15.00/7.00 [2019-03-28 22:57:16,272 INFO L307 CDTParser]: Found 1 translation units. 15.00/7.00 [2019-03-28 22:57:16,273 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c 15.00/7.00 [2019-03-28 22:57:16,280 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/7f7b902081214837ac19459aa5a235e5/FLAG44026badc 15.00/7.00 [2019-03-28 22:57:16,779 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/7f7b902081214837ac19459aa5a235e5 15.00/7.00 [2019-03-28 22:57:16,790 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 15.00/7.00 [2019-03-28 22:57:16,792 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 15.00/7.00 [2019-03-28 22:57:16,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 15.00/7.00 [2019-03-28 22:57:16,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 15.00/7.00 [2019-03-28 22:57:16,797 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 15.00/7.00 [2019-03-28 22:57:16,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 10:57:16" (1/1) ... 15.00/7.00 [2019-03-28 22:57:16,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67dfe00f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:57:16, skipping insertion in model container 15.00/7.00 [2019-03-28 22:57:16,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 10:57:16" (1/1) ... 15.00/7.00 [2019-03-28 22:57:16,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 15.00/7.00 [2019-03-28 22:57:16,828 INFO L176 MainTranslator]: Built tables and reachable declarations 15.00/7.00 [2019-03-28 22:57:16,987 INFO L206 PostProcessor]: Analyzing one entry point: main 15.00/7.00 [2019-03-28 22:57:16,992 INFO L191 MainTranslator]: Completed pre-run 15.00/7.00 [2019-03-28 22:57:17,009 INFO L206 PostProcessor]: Analyzing one entry point: main 15.00/7.00 [2019-03-28 22:57:17,024 INFO L195 MainTranslator]: Completed translation 15.00/7.00 [2019-03-28 22:57:17,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:57:17 WrapperNode 15.00/7.00 [2019-03-28 22:57:17,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 15.00/7.00 [2019-03-28 22:57:17,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 15.00/7.00 [2019-03-28 22:57:17,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 15.00/7.00 [2019-03-28 22:57:17,026 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 15.00/7.00 [2019-03-28 22:57:17,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:57:17" (1/1) ... 15.00/7.00 [2019-03-28 22:57:17,101 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:57:17" (1/1) ... 15.00/7.00 [2019-03-28 22:57:17,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 15.00/7.00 [2019-03-28 22:57:17,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 15.00/7.00 [2019-03-28 22:57:17,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 15.00/7.00 [2019-03-28 22:57:17,134 INFO L276 PluginConnector]: Boogie Preprocessor initialized 15.00/7.00 [2019-03-28 22:57:17,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:57:17" (1/1) ... 15.00/7.00 [2019-03-28 22:57:17,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:57:17" (1/1) ... 15.00/7.00 [2019-03-28 22:57:17,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:57:17" (1/1) ... 15.00/7.00 [2019-03-28 22:57:17,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:57:17" (1/1) ... 15.00/7.00 [2019-03-28 22:57:17,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:57:17" (1/1) ... 15.00/7.00 [2019-03-28 22:57:17,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:57:17" (1/1) ... 15.00/7.00 [2019-03-28 22:57:17,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:57:17" (1/1) ... 15.00/7.00 [2019-03-28 22:57:17,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 15.00/7.00 [2019-03-28 22:57:17,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 15.00/7.00 [2019-03-28 22:57:17,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... 15.00/7.00 [2019-03-28 22:57:17,154 INFO L276 PluginConnector]: RCFGBuilder initialized 15.00/7.00 [2019-03-28 22:57:17,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:57:17" (1/1) ... 15.00/7.00 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 15.00/7.00 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 15.00/7.00 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 15.00/7.00 [2019-03-28 22:57:17,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 15.00/7.00 [2019-03-28 22:57:17,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 15.00/7.00 [2019-03-28 22:57:17,353 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 15.00/7.00 [2019-03-28 22:57:17,354 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. 15.00/7.00 [2019-03-28 22:57:17,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:57:17 BoogieIcfgContainer 15.00/7.00 [2019-03-28 22:57:17,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 15.00/7.00 [2019-03-28 22:57:17,356 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 15.00/7.00 [2019-03-28 22:57:17,356 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 15.00/7.00 [2019-03-28 22:57:17,358 INFO L276 PluginConnector]: BlockEncodingV2 initialized 15.00/7.00 [2019-03-28 22:57:17,358 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:57:17" (1/1) ... 15.00/7.00 [2019-03-28 22:57:17,374 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 12 edges 15.00/7.00 [2019-03-28 22:57:17,375 INFO L258 BlockEncoder]: Using Remove infeasible edges 15.00/7.00 [2019-03-28 22:57:17,376 INFO L263 BlockEncoder]: Using Maximize final states 15.00/7.00 [2019-03-28 22:57:17,377 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 15.00/7.00 [2019-03-28 22:57:17,377 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 15.00/7.00 [2019-03-28 22:57:17,379 INFO L296 BlockEncoder]: Using Remove sink states 15.00/7.00 [2019-03-28 22:57:17,380 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 15.00/7.00 [2019-03-28 22:57:17,380 INFO L179 BlockEncoder]: Using Rewrite not-equals 15.00/7.00 [2019-03-28 22:57:17,394 INFO L185 BlockEncoder]: Using Use SBE 15.00/7.00 [2019-03-28 22:57:17,402 INFO L200 BlockEncoder]: SBE split 0 edges 15.00/7.00 [2019-03-28 22:57:17,407 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility 15.00/7.00 [2019-03-28 22:57:17,409 INFO L71 MaximizeFinalStates]: 0 new accepting states 15.00/7.00 [2019-03-28 22:57:17,422 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding 15.00/7.00 [2019-03-28 22:57:17,425 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states 15.00/7.00 [2019-03-28 22:57:17,426 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 15.00/7.00 [2019-03-28 22:57:17,426 INFO L71 MaximizeFinalStates]: 0 new accepting states 15.00/7.00 [2019-03-28 22:57:17,427 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 15.00/7.00 [2019-03-28 22:57:17,427 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 15.00/7.00 [2019-03-28 22:57:17,427 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 7 edges 15.00/7.00 [2019-03-28 22:57:17,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:57:17 BasicIcfg 15.00/7.00 [2019-03-28 22:57:17,428 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 15.00/7.00 [2019-03-28 22:57:17,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 15.00/7.00 [2019-03-28 22:57:17,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... 15.00/7.00 [2019-03-28 22:57:17,432 INFO L276 PluginConnector]: TraceAbstraction initialized 15.00/7.00 [2019-03-28 22:57:17,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 10:57:16" (1/4) ... 15.00/7.00 [2019-03-28 22:57:17,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545edc41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 10:57:17, skipping insertion in model container 15.00/7.00 [2019-03-28 22:57:17,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:57:17" (2/4) ... 15.00/7.00 [2019-03-28 22:57:17,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545edc41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 10:57:17, skipping insertion in model container 15.00/7.00 [2019-03-28 22:57:17,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:57:17" (3/4) ... 15.00/7.00 [2019-03-28 22:57:17,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545edc41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:57:17, skipping insertion in model container 15.00/7.00 [2019-03-28 22:57:17,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:57:17" (4/4) ... 15.00/7.00 [2019-03-28 22:57:17,437 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 15.00/7.00 [2019-03-28 22:57:17,447 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 15.00/7.00 [2019-03-28 22:57:17,455 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. 15.00/7.00 [2019-03-28 22:57:17,472 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. 15.00/7.00 [2019-03-28 22:57:17,501 INFO L133 ementStrategyFactory]: Using default assertion order modulation 15.00/7.00 [2019-03-28 22:57:17,501 INFO L382 AbstractCegarLoop]: Interprodecural is true 15.00/7.00 [2019-03-28 22:57:17,502 INFO L383 AbstractCegarLoop]: Hoare is true 15.00/7.00 [2019-03-28 22:57:17,502 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 15.00/7.00 [2019-03-28 22:57:17,502 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 15.00/7.00 [2019-03-28 22:57:17,502 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 15.00/7.00 [2019-03-28 22:57:17,503 INFO L387 AbstractCegarLoop]: Difference is false 15.00/7.00 [2019-03-28 22:57:17,503 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 15.00/7.00 [2019-03-28 22:57:17,503 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 15.00/7.00 [2019-03-28 22:57:17,517 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. 15.00/7.00 [2019-03-28 22:57:17,523 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. 15.00/7.00 [2019-03-28 22:57:17,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. 15.00/7.00 [2019-03-28 22:57:17,575 INFO L448 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. 15.00/7.00 [2019-03-28 22:57:17,575 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. 15.00/7.00 [2019-03-28 22:57:17,575 INFO L448 ceAbstractionStarter]: For program point L15-2(lines 12 20) no Hoare annotation was computed. 15.00/7.00 [2019-03-28 22:57:17,576 INFO L448 ceAbstractionStarter]: For program point L12(lines 12 20) no Hoare annotation was computed. 15.00/7.00 [2019-03-28 22:57:17,576 INFO L451 ceAbstractionStarter]: At program point L11-2(lines 11 22) the Hoare annotation is: true 15.00/7.00 [2019-03-28 22:57:17,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:57:17 BasicIcfg 15.00/7.00 [2019-03-28 22:57:17,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 15.00/7.00 [2019-03-28 22:57:17,585 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 15.00/7.00 [2019-03-28 22:57:17,585 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 15.00/7.00 [2019-03-28 22:57:17,589 INFO L276 PluginConnector]: BuchiAutomizer initialized 15.00/7.00 [2019-03-28 22:57:17,589 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 15.00/7.00 [2019-03-28 22:57:17,590 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.03 10:57:16" (1/5) ... 15.00/7.00 [2019-03-28 22:57:17,590 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63a79aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 10:57:17, skipping insertion in model container 15.00/7.00 [2019-03-28 22:57:17,591 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 15.00/7.00 [2019-03-28 22:57:17,591 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:57:17" (2/5) ... 15.00/7.00 [2019-03-28 22:57:17,591 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63a79aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 10:57:17, skipping insertion in model container 15.00/7.00 [2019-03-28 22:57:17,591 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 15.00/7.00 [2019-03-28 22:57:17,591 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:57:17" (3/5) ... 15.00/7.00 [2019-03-28 22:57:17,592 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63a79aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:57:17, skipping insertion in model container 15.00/7.00 [2019-03-28 22:57:17,592 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 15.00/7.00 [2019-03-28 22:57:17,592 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:57:17" (4/5) ... 15.00/7.00 [2019-03-28 22:57:17,592 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63a79aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:57:17, skipping insertion in model container 15.00/7.00 [2019-03-28 22:57:17,593 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 15.00/7.00 [2019-03-28 22:57:17,593 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:57:17" (5/5) ... 15.00/7.00 [2019-03-28 22:57:17,594 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 15.00/7.00 [2019-03-28 22:57:17,621 INFO L133 ementStrategyFactory]: Using default assertion order modulation 15.00/7.00 [2019-03-28 22:57:17,621 INFO L374 BuchiCegarLoop]: Interprodecural is true 15.00/7.00 [2019-03-28 22:57:17,621 INFO L375 BuchiCegarLoop]: Hoare is true 15.00/7.00 [2019-03-28 22:57:17,621 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates 15.00/7.00 [2019-03-28 22:57:17,622 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE 15.00/7.00 [2019-03-28 22:57:17,622 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION 15.00/7.00 [2019-03-28 22:57:17,622 INFO L379 BuchiCegarLoop]: Difference is false 15.00/7.00 [2019-03-28 22:57:17,622 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA 15.00/7.00 [2019-03-28 22:57:17,622 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== 15.00/7.00 [2019-03-28 22:57:17,625 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. 15.00/7.00 [2019-03-28 22:57:17,643 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 15.00/7.00 [2019-03-28 22:57:17,643 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 15.00/7.00 [2019-03-28 22:57:17,643 INFO L119 BuchiIsEmpty]: Starting construction of run 15.00/7.00 [2019-03-28 22:57:17,649 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 15.00/7.00 [2019-03-28 22:57:17,649 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] 15.00/7.00 [2019-03-28 22:57:17,649 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ 15.00/7.00 [2019-03-28 22:57:17,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. 15.00/7.00 [2019-03-28 22:57:17,650 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 15.00/7.00 [2019-03-28 22:57:17,650 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 15.00/7.00 [2019-03-28 22:57:17,650 INFO L119 BuchiIsEmpty]: Starting construction of run 15.00/7.00 [2019-03-28 22:57:17,650 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 15.00/7.00 [2019-03-28 22:57:17,650 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] 15.00/7.00 [2019-03-28 22:57:17,656 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [32] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 7#L11-2true 15.00/7.00 [2019-03-28 22:57:17,656 INFO L796 eck$LassoCheckResult]: Loop: 7#L11-2true [41] L11-2-->L12: Formula: (< 0 (+ v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 5#L12true [33] L12-->L15-2: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_9) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1)))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 6#L15-2true [36] L15-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 7#L11-2true 15.00/7.00 [2019-03-28 22:57:17,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.00/7.00 [2019-03-28 22:57:17,663 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times 15.00/7.00 [2019-03-28 22:57:17,665 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.00/7.00 [2019-03-28 22:57:17,665 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.00/7.00 [2019-03-28 22:57:17,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:17,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:17,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:17,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.00/7.00 [2019-03-28 22:57:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.00/7.00 [2019-03-28 22:57:17,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.00/7.00 [2019-03-28 22:57:17,736 INFO L82 PathProgramCache]: Analyzing trace with hash 70251, now seen corresponding path program 1 times 15.00/7.00 [2019-03-28 22:57:17,736 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.00/7.00 [2019-03-28 22:57:17,736 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.00/7.00 [2019-03-28 22:57:17,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:17,738 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:17,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.00/7.00 [2019-03-28 22:57:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.00/7.00 [2019-03-28 22:57:17,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.00/7.00 [2019-03-28 22:57:17,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1917293, now seen corresponding path program 1 times 15.00/7.00 [2019-03-28 22:57:17,751 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.00/7.00 [2019-03-28 22:57:17,751 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.00/7.00 [2019-03-28 22:57:17,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:17,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:17,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.00/7.00 [2019-03-28 22:57:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.00/7.00 [2019-03-28 22:57:17,814 INFO L216 LassoAnalysis]: Preferences: 15.00/7.00 [2019-03-28 22:57:17,815 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 15.00/7.00 [2019-03-28 22:57:17,815 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 15.00/7.00 [2019-03-28 22:57:17,816 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 15.00/7.00 [2019-03-28 22:57:17,816 INFO L127 ssoRankerPreferences]: Use exernal solver: true 15.00/7.00 [2019-03-28 22:57:17,816 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.00/7.00 [2019-03-28 22:57:17,816 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 15.00/7.00 [2019-03-28 22:57:17,816 INFO L130 ssoRankerPreferences]: Path of dumped script: 15.00/7.00 [2019-03-28 22:57:17,817 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 15.00/7.00 [2019-03-28 22:57:17,817 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 15.00/7.00 [2019-03-28 22:57:17,817 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 15.00/7.00 [2019-03-28 22:57:17,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.00/7.00 [2019-03-28 22:57:17,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.00/7.00 [2019-03-28 22:57:17,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.00/7.00 [2019-03-28 22:57:17,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.00/7.00 [2019-03-28 22:57:17,970 INFO L300 LassoAnalysis]: Preprocessing complete. 15.00/7.00 [2019-03-28 22:57:17,971 INFO L412 LassoAnalysis]: Checking for nontermination... 15.00/7.00 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 15.00/7.00 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.00/7.00 Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.00/7.00 [2019-03-28 22:57:17,979 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 15.00/7.00 [2019-03-28 22:57:17,979 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.00/7.00 [2019-03-28 22:57:18,012 INFO L445 LassoAnalysis]: Proved nontermination for one component. 15.00/7.00 [2019-03-28 22:57:18,012 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 15.00/7.00 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 15.00/7.00 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.00/7.00 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.00/7.00 [2019-03-28 22:57:18,019 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 15.00/7.00 [2019-03-28 22:57:18,019 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.00/7.00 [2019-03-28 22:57:18,047 INFO L445 LassoAnalysis]: Proved nontermination for one component. 15.00/7.00 [2019-03-28 22:57:18,048 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 15.00/7.00 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 15.00/7.00 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.00/7.00 Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.00/7.00 [2019-03-28 22:57:18,054 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 15.00/7.00 [2019-03-28 22:57:18,054 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.00/7.00 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 15.00/7.00 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.00/7.00 Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.00/7.00 [2019-03-28 22:57:18,088 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 15.00/7.00 [2019-03-28 22:57:18,088 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.00/7.00 [2019-03-28 22:57:18,121 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 15.00/7.00 [2019-03-28 22:57:18,123 INFO L216 LassoAnalysis]: Preferences: 15.00/7.00 [2019-03-28 22:57:18,123 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 15.00/7.00 [2019-03-28 22:57:18,123 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 15.00/7.00 [2019-03-28 22:57:18,123 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 15.00/7.00 [2019-03-28 22:57:18,124 INFO L127 ssoRankerPreferences]: Use exernal solver: false 15.00/7.00 [2019-03-28 22:57:18,124 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 15.00/7.00 [2019-03-28 22:57:18,124 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 15.00/7.00 [2019-03-28 22:57:18,124 INFO L130 ssoRankerPreferences]: Path of dumped script: 15.00/7.00 [2019-03-28 22:57:18,124 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 15.00/7.00 [2019-03-28 22:57:18,124 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 15.00/7.00 [2019-03-28 22:57:18,124 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 15.00/7.00 [2019-03-28 22:57:18,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.00/7.00 [2019-03-28 22:57:18,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.00/7.00 [2019-03-28 22:57:18,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.00/7.00 [2019-03-28 22:57:18,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.00/7.00 [2019-03-28 22:57:18,239 INFO L300 LassoAnalysis]: Preprocessing complete. 15.00/7.00 [2019-03-28 22:57:18,245 INFO L497 LassoAnalysis]: Using template 'affine'. 15.00/7.00 [2019-03-28 22:57:18,246 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 15.00/7.00 Termination analysis: LINEAR_WITH_GUESSES 15.00/7.00 Number of strict supporting invariants: 0 15.00/7.00 Number of non-strict supporting invariants: 1 15.00/7.00 Consider only non-deceasing supporting invariants: true 15.00/7.00 Simplify termination arguments: true 15.00/7.00 Simplify supporting invariants: trueOverapproximate stem: false 15.00/7.00 [2019-03-28 22:57:18,248 INFO L339 nArgumentSynthesizer]: Template has degree 0. 15.00/7.00 [2019-03-28 22:57:18,249 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 15.00/7.00 [2019-03-28 22:57:18,249 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 15.00/7.00 [2019-03-28 22:57:18,249 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 15.00/7.00 [2019-03-28 22:57:18,253 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 15.00/7.00 [2019-03-28 22:57:18,254 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 15.00/7.00 [2019-03-28 22:57:18,262 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 15.00/7.00 [2019-03-28 22:57:18,263 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 15.00/7.00 Termination analysis: LINEAR_WITH_GUESSES 15.00/7.00 Number of strict supporting invariants: 0 15.00/7.00 Number of non-strict supporting invariants: 1 15.00/7.00 Consider only non-deceasing supporting invariants: true 15.00/7.00 Simplify termination arguments: true 15.00/7.00 Simplify supporting invariants: trueOverapproximate stem: false 15.00/7.00 [2019-03-28 22:57:18,264 INFO L339 nArgumentSynthesizer]: Template has degree 0. 15.00/7.00 [2019-03-28 22:57:18,264 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 15.00/7.00 [2019-03-28 22:57:18,264 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 15.00/7.00 [2019-03-28 22:57:18,265 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 15.00/7.00 [2019-03-28 22:57:18,265 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 15.00/7.00 [2019-03-28 22:57:18,266 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 15.00/7.00 [2019-03-28 22:57:18,266 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 15.00/7.00 [2019-03-28 22:57:18,273 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 15.00/7.00 [2019-03-28 22:57:18,278 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 15.00/7.00 [2019-03-28 22:57:18,278 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. 15.00/7.00 [2019-03-28 22:57:18,280 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 15.00/7.00 [2019-03-28 22:57:18,280 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 15.00/7.00 [2019-03-28 22:57:18,280 INFO L518 LassoAnalysis]: Proved termination. 15.00/7.00 [2019-03-28 22:57:18,281 INFO L520 LassoAnalysis]: Termination argument consisting of: 15.00/7.00 Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 15.00/7.00 Supporting invariants [] 15.00/7.00 [2019-03-28 22:57:18,282 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 15.00/7.00 [2019-03-28 22:57:18,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.00/7.00 [2019-03-28 22:57:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.00/7.00 [2019-03-28 22:57:18,317 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core 15.00/7.00 [2019-03-28 22:57:18,318 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.00/7.00 [2019-03-28 22:57:18,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.00/7.00 [2019-03-28 22:57:18,329 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core 15.00/7.00 [2019-03-28 22:57:18,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.00/7.00 [2019-03-28 22:57:18,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 15.00/7.00 [2019-03-28 22:57:18,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.00/7.00 [2019-03-28 22:57:18,396 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core 15.00/7.00 [2019-03-28 22:57:18,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.00/7.00 [2019-03-28 22:57:18,397 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization 15.00/7.00 [2019-03-28 22:57:18,403 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates 15.00/7.00 [2019-03-28 22:57:18,405 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states. Second operand 4 states. 15.00/7.00 [2019-03-28 22:57:18,446 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states.. Second operand 4 states. Result 13 states and 18 transitions. Complement of second has 4 states. 15.00/7.00 [2019-03-28 22:57:18,447 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 15.00/7.00 [2019-03-28 22:57:18,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. 15.00/7.00 [2019-03-28 22:57:18,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. 15.00/7.00 [2019-03-28 22:57:18,451 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 1 letters. Loop has 3 letters. 15.00/7.00 [2019-03-28 22:57:18,453 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.00/7.00 [2019-03-28 22:57:18,453 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 4 letters. Loop has 3 letters. 15.00/7.00 [2019-03-28 22:57:18,453 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.00/7.00 [2019-03-28 22:57:18,453 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 1 letters. Loop has 6 letters. 15.00/7.00 [2019-03-28 22:57:18,454 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.00/7.00 [2019-03-28 22:57:18,460 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. 15.00/7.00 [2019-03-28 22:57:18,461 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 15.00/7.00 [2019-03-28 22:57:18,465 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 18 transitions. 15.00/7.00 [2019-03-28 22:57:18,466 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 15.00/7.00 [2019-03-28 22:57:18,466 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 15.00/7.00 [2019-03-28 22:57:18,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. 15.00/7.00 [2019-03-28 22:57:18,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 15.00/7.00 [2019-03-28 22:57:18,468 INFO L706 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. 15.00/7.00 [2019-03-28 22:57:18,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. 15.00/7.00 [2019-03-28 22:57:18,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. 15.00/7.00 [2019-03-28 22:57:18,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. 15.00/7.00 [2019-03-28 22:57:18,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. 15.00/7.00 [2019-03-28 22:57:18,497 INFO L729 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. 15.00/7.00 [2019-03-28 22:57:18,497 INFO L609 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. 15.00/7.00 [2019-03-28 22:57:18,498 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ 15.00/7.00 [2019-03-28 22:57:18,498 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. 15.00/7.00 [2019-03-28 22:57:18,498 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 15.00/7.00 [2019-03-28 22:57:18,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 15.00/7.00 [2019-03-28 22:57:18,499 INFO L119 BuchiIsEmpty]: Starting construction of run 15.00/7.00 [2019-03-28 22:57:18,499 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 15.00/7.00 [2019-03-28 22:57:18,499 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] 15.00/7.00 [2019-03-28 22:57:18,500 INFO L794 eck$LassoCheckResult]: Stem: 65#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 66#L11-2 [41] L11-2-->L12: Formula: (< 0 (+ v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 67#L12 15.00/7.00 [2019-03-28 22:57:18,500 INFO L796 eck$LassoCheckResult]: Loop: 67#L12 [43] L12-->L15: Formula: (>= 0 v_ULTIMATE.start_main_~x~0_10) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[] 61#L15 [44] L15-->L15-2: Formula: (>= 0 v_ULTIMATE.start_main_~y~0_8) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8} AuxVars[] AssignedVars[] 62#L15-2 [36] L15-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 70#L11-2 [41] L11-2-->L12: Formula: (< 0 (+ v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 67#L12 15.00/7.00 [2019-03-28 22:57:18,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.00/7.00 [2019-03-28 22:57:18,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1994, now seen corresponding path program 1 times 15.00/7.00 [2019-03-28 22:57:18,500 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.00/7.00 [2019-03-28 22:57:18,501 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.00/7.00 [2019-03-28 22:57:18,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:18,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:18,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.00/7.00 [2019-03-28 22:57:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.00/7.00 [2019-03-28 22:57:18,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.00/7.00 [2019-03-28 22:57:18,509 INFO L82 PathProgramCache]: Analyzing trace with hash 2247975, now seen corresponding path program 1 times 15.00/7.00 [2019-03-28 22:57:18,509 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.00/7.00 [2019-03-28 22:57:18,509 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.00/7.00 [2019-03-28 22:57:18,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:18,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:18,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.00/7.00 [2019-03-28 22:57:18,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 15.00/7.00 [2019-03-28 22:57:18,551 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 15.00/7.00 [2019-03-28 22:57:18,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 15.00/7.00 [2019-03-28 22:57:18,553 INFO L811 eck$LassoCheckResult]: loop already infeasible 15.00/7.00 [2019-03-28 22:57:18,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. 15.00/7.00 [2019-03-28 22:57:18,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 15.00/7.00 [2019-03-28 22:57:18,557 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. cyclomatic complexity: 7 Second operand 4 states. 15.00/7.00 [2019-03-28 22:57:18,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 15.00/7.00 [2019-03-28 22:57:18,586 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. 15.00/7.00 [2019-03-28 22:57:18,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 15.00/7.00 [2019-03-28 22:57:18,588 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 22 transitions. 15.00/7.00 [2019-03-28 22:57:18,589 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 15.00/7.00 [2019-03-28 22:57:18,590 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 11 states and 13 transitions. 15.00/7.00 [2019-03-28 22:57:18,590 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 15.00/7.00 [2019-03-28 22:57:18,590 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 15.00/7.00 [2019-03-28 22:57:18,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. 15.00/7.00 [2019-03-28 22:57:18,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 15.00/7.00 [2019-03-28 22:57:18,590 INFO L706 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. 15.00/7.00 [2019-03-28 22:57:18,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. 15.00/7.00 [2019-03-28 22:57:18,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. 15.00/7.00 [2019-03-28 22:57:18,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. 15.00/7.00 [2019-03-28 22:57:18,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. 15.00/7.00 [2019-03-28 22:57:18,592 INFO L729 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. 15.00/7.00 [2019-03-28 22:57:18,592 INFO L609 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. 15.00/7.00 [2019-03-28 22:57:18,592 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ 15.00/7.00 [2019-03-28 22:57:18,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. 15.00/7.00 [2019-03-28 22:57:18,593 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 15.00/7.00 [2019-03-28 22:57:18,593 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 15.00/7.00 [2019-03-28 22:57:18,593 INFO L119 BuchiIsEmpty]: Starting construction of run 15.00/7.00 [2019-03-28 22:57:18,593 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 15.00/7.00 [2019-03-28 22:57:18,594 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] 15.00/7.00 [2019-03-28 22:57:18,594 INFO L794 eck$LassoCheckResult]: Stem: 102#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 103#L11-2 [41] L11-2-->L12: Formula: (< 0 (+ v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 104#L12 15.00/7.00 [2019-03-28 22:57:18,594 INFO L796 eck$LassoCheckResult]: Loop: 104#L12 [43] L12-->L15: Formula: (>= 0 v_ULTIMATE.start_main_~x~0_10) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[] 100#L15 [30] L15-->L15-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~y~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 101#L15-2 [36] L15-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 107#L11-2 [41] L11-2-->L12: Formula: (< 0 (+ v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 104#L12 15.00/7.00 [2019-03-28 22:57:18,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.00/7.00 [2019-03-28 22:57:18,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1994, now seen corresponding path program 2 times 15.00/7.00 [2019-03-28 22:57:18,595 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.00/7.00 [2019-03-28 22:57:18,595 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.00/7.00 [2019-03-28 22:57:18,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:18,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:18,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.00/7.00 [2019-03-28 22:57:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.00/7.00 [2019-03-28 22:57:18,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.00/7.00 [2019-03-28 22:57:18,602 INFO L82 PathProgramCache]: Analyzing trace with hash 2234521, now seen corresponding path program 1 times 15.00/7.00 [2019-03-28 22:57:18,602 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.00/7.00 [2019-03-28 22:57:18,603 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.00/7.00 [2019-03-28 22:57:18,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:18,604 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:18,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.00/7.00 [2019-03-28 22:57:18,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.00/7.00 [2019-03-28 22:57:18,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.00/7.00 [2019-03-28 22:57:18,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1842811874, now seen corresponding path program 1 times 15.00/7.00 [2019-03-28 22:57:18,611 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.00/7.00 [2019-03-28 22:57:18,611 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.00/7.00 [2019-03-28 22:57:18,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:18,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:18,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.00/7.00 [2019-03-28 22:57:18,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.00/7.00 [2019-03-28 22:57:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.00/7.00 [2019-03-28 22:57:18,648 INFO L216 LassoAnalysis]: Preferences: 15.00/7.00 [2019-03-28 22:57:18,649 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 15.00/7.00 [2019-03-28 22:57:18,649 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 15.00/7.00 [2019-03-28 22:57:18,649 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 15.00/7.00 [2019-03-28 22:57:18,649 INFO L127 ssoRankerPreferences]: Use exernal solver: true 15.00/7.00 [2019-03-28 22:57:18,649 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.00/7.00 [2019-03-28 22:57:18,649 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 15.00/7.00 [2019-03-28 22:57:18,650 INFO L130 ssoRankerPreferences]: Path of dumped script: 15.00/7.00 [2019-03-28 22:57:18,650 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 15.00/7.00 [2019-03-28 22:57:18,650 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 15.00/7.00 [2019-03-28 22:57:18,650 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 15.00/7.00 [2019-03-28 22:57:18,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.00/7.00 [2019-03-28 22:57:18,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.00/7.00 [2019-03-28 22:57:18,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.00/7.00 [2019-03-28 22:57:18,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.00/7.00 [2019-03-28 22:57:18,744 INFO L300 LassoAnalysis]: Preprocessing complete. 15.00/7.00 [2019-03-28 22:57:18,744 INFO L412 LassoAnalysis]: Checking for nontermination... 15.00/7.00 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 15.00/7.00 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.00/7.00 Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.00/7.00 [2019-03-28 22:57:18,752 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 15.00/7.00 [2019-03-28 22:57:18,752 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.00/7.00 [2019-03-28 22:57:18,781 INFO L445 LassoAnalysis]: Proved nontermination for one component. 15.00/7.00 [2019-03-28 22:57:18,781 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 15.00/7.00 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 15.00/7.00 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.00/7.00 Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.00/7.00 [2019-03-28 22:57:18,789 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 15.00/7.00 [2019-03-28 22:57:18,789 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.00/7.00 [2019-03-28 22:57:18,817 INFO L445 LassoAnalysis]: Proved nontermination for one component. 15.00/7.00 [2019-03-28 22:57:18,817 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 15.00/7.00 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 15.00/7.00 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.00/7.00 Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.00/7.00 [2019-03-28 22:57:18,825 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 15.00/7.00 [2019-03-28 22:57:18,826 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.00/7.00 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 15.00/7.00 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.00/7.00 [2019-03-28 22:57:18,858 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 15.00/7.00 Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.00/7.00 [2019-03-28 22:57:18,859 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.00/7.00 [2019-03-28 22:57:18,988 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 15.00/7.00 [2019-03-28 22:57:18,991 INFO L216 LassoAnalysis]: Preferences: 15.00/7.00 [2019-03-28 22:57:18,991 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 15.00/7.00 [2019-03-28 22:57:18,992 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 15.00/7.00 [2019-03-28 22:57:18,992 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 15.00/7.00 [2019-03-28 22:57:18,992 INFO L127 ssoRankerPreferences]: Use exernal solver: false 15.00/7.00 [2019-03-28 22:57:18,992 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 15.00/7.00 [2019-03-28 22:57:18,992 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 15.00/7.00 [2019-03-28 22:57:18,992 INFO L130 ssoRankerPreferences]: Path of dumped script: 15.00/7.00 [2019-03-28 22:57:18,993 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 15.00/7.00 [2019-03-28 22:57:18,993 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 15.00/7.00 [2019-03-28 22:57:18,993 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 15.00/7.00 [2019-03-28 22:57:18,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.00/7.00 [2019-03-28 22:57:18,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.00/7.00 [2019-03-28 22:57:19,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.00/7.01 [2019-03-28 22:57:19,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.00/7.01 [2019-03-28 22:57:19,065 INFO L300 LassoAnalysis]: Preprocessing complete. 15.00/7.01 [2019-03-28 22:57:19,065 INFO L497 LassoAnalysis]: Using template 'affine'. 15.00/7.01 [2019-03-28 22:57:19,066 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 15.00/7.01 Termination analysis: LINEAR_WITH_GUESSES 15.00/7.01 Number of strict supporting invariants: 0 15.00/7.01 Number of non-strict supporting invariants: 1 15.00/7.01 Consider only non-deceasing supporting invariants: true 15.00/7.01 Simplify termination arguments: true 15.00/7.01 Simplify supporting invariants: trueOverapproximate stem: false 15.00/7.01 [2019-03-28 22:57:19,066 INFO L339 nArgumentSynthesizer]: Template has degree 0. 15.00/7.01 [2019-03-28 22:57:19,067 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 15.00/7.01 [2019-03-28 22:57:19,067 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 15.00/7.01 [2019-03-28 22:57:19,067 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 15.00/7.01 [2019-03-28 22:57:19,069 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 15.00/7.01 [2019-03-28 22:57:19,069 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 15.00/7.01 [2019-03-28 22:57:19,073 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 15.00/7.01 [2019-03-28 22:57:19,074 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 15.00/7.01 Termination analysis: LINEAR_WITH_GUESSES 15.00/7.01 Number of strict supporting invariants: 0 15.00/7.01 Number of non-strict supporting invariants: 1 15.00/7.01 Consider only non-deceasing supporting invariants: true 15.00/7.01 Simplify termination arguments: true 15.00/7.01 Simplify supporting invariants: trueOverapproximate stem: false 15.00/7.01 [2019-03-28 22:57:19,074 INFO L339 nArgumentSynthesizer]: Template has degree 0. 15.00/7.01 [2019-03-28 22:57:19,075 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 15.00/7.01 [2019-03-28 22:57:19,075 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 15.00/7.01 [2019-03-28 22:57:19,075 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 15.00/7.01 [2019-03-28 22:57:19,077 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 15.00/7.01 [2019-03-28 22:57:19,077 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 15.00/7.01 [2019-03-28 22:57:19,083 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 15.00/7.01 [2019-03-28 22:57:19,083 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 15.00/7.01 Termination analysis: LINEAR_WITH_GUESSES 15.00/7.01 Number of strict supporting invariants: 0 15.00/7.01 Number of non-strict supporting invariants: 1 15.00/7.01 Consider only non-deceasing supporting invariants: true 15.00/7.01 Simplify termination arguments: true 15.00/7.01 Simplify supporting invariants: trueOverapproximate stem: false 15.00/7.01 [2019-03-28 22:57:19,084 INFO L339 nArgumentSynthesizer]: Template has degree 0. 15.00/7.01 [2019-03-28 22:57:19,084 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 15.00/7.01 [2019-03-28 22:57:19,084 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 15.00/7.01 [2019-03-28 22:57:19,085 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 15.00/7.01 [2019-03-28 22:57:19,085 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 15.00/7.01 [2019-03-28 22:57:19,086 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 15.00/7.01 [2019-03-28 22:57:19,086 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 15.00/7.01 [2019-03-28 22:57:19,091 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 15.00/7.01 [2019-03-28 22:57:19,096 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. 15.00/7.01 [2019-03-28 22:57:19,097 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. 15.00/7.01 [2019-03-28 22:57:19,097 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 15.00/7.01 [2019-03-28 22:57:19,097 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 15.00/7.01 [2019-03-28 22:57:19,098 INFO L518 LassoAnalysis]: Proved termination. 15.00/7.01 [2019-03-28 22:57:19,098 INFO L520 LassoAnalysis]: Termination argument consisting of: 15.00/7.01 Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 15.00/7.01 Supporting invariants [] 15.00/7.01 [2019-03-28 22:57:19,099 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 15.00/7.01 [2019-03-28 22:57:19,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.00/7.01 [2019-03-28 22:57:19,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.00/7.01 [2019-03-28 22:57:19,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core 15.00/7.01 [2019-03-28 22:57:19,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.00/7.01 [2019-03-28 22:57:19,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.00/7.01 [2019-03-28 22:57:19,127 WARN L254 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core 15.00/7.01 [2019-03-28 22:57:19,127 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.00/7.01 [2019-03-28 22:57:19,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 15.00/7.01 [2019-03-28 22:57:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.00/7.01 [2019-03-28 22:57:19,185 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core 15.00/7.01 [2019-03-28 22:57:19,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.00/7.01 [2019-03-28 22:57:19,186 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization 15.00/7.01 [2019-03-28 22:57:19,187 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates 15.00/7.01 [2019-03-28 22:57:19,187 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand 4 states. 15.00/7.01 [2019-03-28 22:57:19,233 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 9 states and 11 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 21 states and 26 transitions. Complement of second has 11 states. 15.00/7.01 [2019-03-28 22:57:19,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 2 accepting loop states 15.00/7.01 [2019-03-28 22:57:19,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. 15.00/7.01 [2019-03-28 22:57:19,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. 15.00/7.01 [2019-03-28 22:57:19,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 4 letters. 15.00/7.01 [2019-03-28 22:57:19,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.00/7.01 [2019-03-28 22:57:19,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 6 letters. Loop has 4 letters. 15.00/7.01 [2019-03-28 22:57:19,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.00/7.01 [2019-03-28 22:57:19,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 8 letters. 15.00/7.01 [2019-03-28 22:57:19,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.00/7.01 [2019-03-28 22:57:19,238 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. 15.00/7.01 [2019-03-28 22:57:19,239 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 15.00/7.01 [2019-03-28 22:57:19,239 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. 15.00/7.01 [2019-03-28 22:57:19,239 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 15.00/7.01 [2019-03-28 22:57:19,240 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 15.00/7.01 [2019-03-28 22:57:19,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. 15.00/7.01 [2019-03-28 22:57:19,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 15.00/7.01 [2019-03-28 22:57:19,240 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 15.00/7.01 [2019-03-28 22:57:19,240 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 15.00/7.01 [2019-03-28 22:57:19,240 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 15.00/7.01 [2019-03-28 22:57:19,240 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ 15.00/7.01 [2019-03-28 22:57:19,240 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. 15.00/7.01 [2019-03-28 22:57:19,241 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 15.00/7.01 [2019-03-28 22:57:19,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true 15.00/7.01 [2019-03-28 22:57:19,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:57:19 BasicIcfg 15.00/7.01 [2019-03-28 22:57:19,247 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 15.00/7.01 [2019-03-28 22:57:19,248 INFO L168 Benchmark]: Toolchain (without parser) took 2456.87 ms. Allocated memory was 649.6 MB in the beginning and 679.5 MB in the end (delta: 29.9 MB). Free memory was 564.9 MB in the beginning and 448.4 MB in the end (delta: 116.5 MB). Peak memory consumption was 146.4 MB. Max. memory is 50.3 GB. 15.00/7.01 [2019-03-28 22:57:19,250 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 649.6 MB. Free memory is still 585.4 MB. There was no memory consumed. Max. memory is 50.3 GB. 15.00/7.01 [2019-03-28 22:57:19,250 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.40 ms. Allocated memory is still 649.6 MB. Free memory was 564.9 MB in the beginning and 555.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 50.3 GB. 15.00/7.01 [2019-03-28 22:57:19,251 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.73 ms. Allocated memory was 649.6 MB in the beginning and 679.5 MB in the end (delta: 29.9 MB). Free memory was 555.3 MB in the beginning and 647.2 MB in the end (delta: -91.9 MB). Peak memory consumption was 21.5 MB. Max. memory is 50.3 GB. 15.00/7.01 [2019-03-28 22:57:19,251 INFO L168 Benchmark]: Boogie Preprocessor took 19.62 ms. Allocated memory is still 679.5 MB. Free memory was 647.2 MB in the beginning and 644.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. 15.00/7.01 [2019-03-28 22:57:19,252 INFO L168 Benchmark]: RCFGBuilder took 201.37 ms. Allocated memory is still 679.5 MB. Free memory was 644.1 MB in the beginning and 628.7 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 50.3 GB. 15.00/7.01 [2019-03-28 22:57:19,253 INFO L168 Benchmark]: BlockEncodingV2 took 72.79 ms. Allocated memory is still 679.5 MB. Free memory was 628.7 MB in the beginning and 624.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 50.3 GB. 15.00/7.01 [2019-03-28 22:57:19,253 INFO L168 Benchmark]: TraceAbstraction took 155.38 ms. Allocated memory is still 679.5 MB. Free memory was 624.7 MB in the beginning and 615.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. 15.00/7.01 [2019-03-28 22:57:19,254 INFO L168 Benchmark]: BuchiAutomizer took 1662.08 ms. Allocated memory is still 679.5 MB. Free memory was 615.2 MB in the beginning and 448.4 MB in the end (delta: 166.8 MB). Peak memory consumption was 166.8 MB. Max. memory is 50.3 GB. 15.00/7.01 [2019-03-28 22:57:19,258 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 15.00/7.01 --- Results --- 15.00/7.01 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 15.00/7.01 - StatisticsResult: Initial Icfg 15.00/7.01 9 locations, 12 edges 15.00/7.01 - StatisticsResult: Encoded RCFG 15.00/7.01 5 locations, 7 edges 15.00/7.01 * Results from de.uni_freiburg.informatik.ultimate.core: 15.00/7.01 - StatisticsResult: Toolchain Benchmarks 15.00/7.01 Benchmark results are: 15.00/7.01 * CDTParser took 0.19 ms. Allocated memory is still 649.6 MB. Free memory is still 585.4 MB. There was no memory consumed. Max. memory is 50.3 GB. 15.00/7.01 * CACSL2BoogieTranslator took 232.40 ms. Allocated memory is still 649.6 MB. Free memory was 564.9 MB in the beginning and 555.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 50.3 GB. 15.00/7.01 * Boogie Procedure Inliner took 107.73 ms. Allocated memory was 649.6 MB in the beginning and 679.5 MB in the end (delta: 29.9 MB). Free memory was 555.3 MB in the beginning and 647.2 MB in the end (delta: -91.9 MB). Peak memory consumption was 21.5 MB. Max. memory is 50.3 GB. 15.00/7.01 * Boogie Preprocessor took 19.62 ms. Allocated memory is still 679.5 MB. Free memory was 647.2 MB in the beginning and 644.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. 15.00/7.01 * RCFGBuilder took 201.37 ms. Allocated memory is still 679.5 MB. Free memory was 644.1 MB in the beginning and 628.7 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 50.3 GB. 15.00/7.01 * BlockEncodingV2 took 72.79 ms. Allocated memory is still 679.5 MB. Free memory was 628.7 MB in the beginning and 624.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 50.3 GB. 15.00/7.01 * TraceAbstraction took 155.38 ms. Allocated memory is still 679.5 MB. Free memory was 624.7 MB in the beginning and 615.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. 15.00/7.01 * BuchiAutomizer took 1662.08 ms. Allocated memory is still 679.5 MB. Free memory was 615.2 MB in the beginning and 448.4 MB in the end (delta: 166.8 MB). Peak memory consumption was 166.8 MB. Max. memory is 50.3 GB. 15.00/7.01 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 15.00/7.01 - AllSpecificationsHoldResult: All specifications hold 15.00/7.01 We were not able to verify any specifiation because the program does not contain any specification. 15.00/7.01 - InvariantResult [Line: 11]: Loop Invariant 15.00/7.01 Derived loop invariant: 1 15.00/7.01 - StatisticsResult: Ultimate Automizer benchmark data 15.00/7.01 CFG has 1 procedures, 5 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=5occurred 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 15.00/7.01 - StatisticsResult: Constructed decomposition of program 15.00/7.01 Your program was decomposed into 3 terminating modules (1 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. 15.00/7.01 - StatisticsResult: Timing statistics 15.00/7.01 BüchiAutomizer plugin needed 1.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 21 SDtfs, 29 SDslu, 21 SDs, 0 SdLazy, 46 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax160 hnf100 lsp46 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq139 hnf95 smp100 dnf100 smp100 tf110 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s 15.00/7.01 - TerminationAnalysisResult: Termination proven 15.00/7.01 Buchi Automizer proved that your program is terminating 15.00/7.01 RESULT: Ultimate proved your program to be correct! 15.00/7.01 !SESSION 2019-03-28 22:57:13.456 ----------------------------------------------- 15.00/7.01 eclipse.buildId=unknown 15.00/7.01 java.version=1.8.0_181 15.00/7.01 java.vendor=Oracle Corporation 15.00/7.01 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 15.00/7.01 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c 15.00/7.01 Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c 15.00/7.01 15.00/7.01 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 22:57:19.491 15.00/7.01 !MESSAGE The workspace will exit with unsaved changes in this session. 15.00/7.01 Received shutdown request... 15.00/7.01 Ultimate: 15.00/7.01 GTK+ Version Check 15.00/7.01 EOF