16.80/10.60 YES 16.80/10.60 16.80/10.60 Ultimate: Cannot open display: 16.80/10.60 This is Ultimate 0.1.24-8dc7c08-m 16.80/10.60 [2019-03-28 12:17:35,665 INFO L170 SettingsManager]: Resetting all preferences to default values... 16.80/10.60 [2019-03-28 12:17:35,667 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 16.80/10.60 [2019-03-28 12:17:35,680 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 16.80/10.60 [2019-03-28 12:17:35,680 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 16.80/10.60 [2019-03-28 12:17:35,681 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 16.80/10.60 [2019-03-28 12:17:35,682 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 16.80/10.60 [2019-03-28 12:17:35,684 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 16.80/10.60 [2019-03-28 12:17:35,685 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 16.80/10.60 [2019-03-28 12:17:35,686 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 16.80/10.60 [2019-03-28 12:17:35,687 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 16.80/10.60 [2019-03-28 12:17:35,687 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 16.80/10.60 [2019-03-28 12:17:35,688 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 16.80/10.60 [2019-03-28 12:17:35,689 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 16.80/10.60 [2019-03-28 12:17:35,690 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 16.80/10.60 [2019-03-28 12:17:35,691 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 16.80/10.60 [2019-03-28 12:17:35,691 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 16.80/10.60 [2019-03-28 12:17:35,693 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 16.80/10.60 [2019-03-28 12:17:35,695 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 16.80/10.60 [2019-03-28 12:17:35,696 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 16.80/10.60 [2019-03-28 12:17:35,697 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 16.80/10.60 [2019-03-28 12:17:35,699 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 16.80/10.60 [2019-03-28 12:17:35,701 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 16.80/10.60 [2019-03-28 12:17:35,701 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 16.80/10.60 [2019-03-28 12:17:35,702 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 16.80/10.60 [2019-03-28 12:17:35,702 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 16.80/10.60 [2019-03-28 12:17:35,703 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 16.80/10.60 [2019-03-28 12:17:35,704 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 16.80/10.60 [2019-03-28 12:17:35,704 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 16.80/10.60 [2019-03-28 12:17:35,705 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 16.80/10.60 [2019-03-28 12:17:35,705 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 16.80/10.60 [2019-03-28 12:17:35,706 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 16.80/10.60 [2019-03-28 12:17:35,707 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 16.80/10.60 [2019-03-28 12:17:35,707 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 16.80/10.60 [2019-03-28 12:17:35,708 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 16.80/10.60 [2019-03-28 12:17:35,708 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 16.80/10.60 [2019-03-28 12:17:35,708 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 16.80/10.60 [2019-03-28 12:17:35,709 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 16.80/10.60 [2019-03-28 12:17:35,710 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 16.80/10.60 [2019-03-28 12:17:35,710 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf 16.80/10.60 [2019-03-28 12:17:35,725 INFO L110 SettingsManager]: Loading preferences was successful 16.80/10.60 [2019-03-28 12:17:35,726 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 16.80/10.60 [2019-03-28 12:17:35,727 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 16.80/10.60 [2019-03-28 12:17:35,727 INFO L133 SettingsManager]: * Rewrite not-equals=true 16.80/10.60 [2019-03-28 12:17:35,727 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 16.80/10.60 [2019-03-28 12:17:35,728 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 16.80/10.60 [2019-03-28 12:17:35,728 INFO L133 SettingsManager]: * Use SBE=true 16.80/10.60 [2019-03-28 12:17:35,728 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 16.80/10.60 [2019-03-28 12:17:35,728 INFO L133 SettingsManager]: * Use old map elimination=false 16.80/10.60 [2019-03-28 12:17:35,728 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 16.80/10.60 [2019-03-28 12:17:35,728 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 16.80/10.60 [2019-03-28 12:17:35,729 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 16.80/10.60 [2019-03-28 12:17:35,729 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 16.80/10.60 [2019-03-28 12:17:35,729 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 16.80/10.60 [2019-03-28 12:17:35,729 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:35,729 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 16.80/10.60 [2019-03-28 12:17:35,729 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 16.80/10.60 [2019-03-28 12:17:35,730 INFO L133 SettingsManager]: * Check division by zero=IGNORE 16.80/10.60 [2019-03-28 12:17:35,730 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 16.80/10.60 [2019-03-28 12:17:35,730 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 16.80/10.60 [2019-03-28 12:17:35,730 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 16.80/10.60 [2019-03-28 12:17:35,730 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 16.80/10.60 [2019-03-28 12:17:35,731 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 16.80/10.60 [2019-03-28 12:17:35,731 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 16.80/10.60 [2019-03-28 12:17:35,731 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 16.80/10.60 [2019-03-28 12:17:35,731 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 16.80/10.60 [2019-03-28 12:17:35,731 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 16.80/10.60 [2019-03-28 12:17:35,731 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 16.80/10.60 [2019-03-28 12:17:35,732 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 16.80/10.60 [2019-03-28 12:17:35,757 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 16.80/10.60 [2019-03-28 12:17:35,789 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 16.80/10.60 [2019-03-28 12:17:35,793 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 16.80/10.60 [2019-03-28 12:17:35,795 INFO L271 PluginConnector]: Initializing CDTParser... 16.80/10.60 [2019-03-28 12:17:35,795 INFO L276 PluginConnector]: CDTParser initialized 16.80/10.60 [2019-03-28 12:17:35,796 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c 16.80/10.60 [2019-03-28 12:17:35,871 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/e9ed22dba1ab488cbd50369fd7406045/FLAG07823dc76 16.80/10.60 [2019-03-28 12:17:36,435 INFO L307 CDTParser]: Found 1 translation units. 16.80/10.60 [2019-03-28 12:17:36,436 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c 16.80/10.60 [2019-03-28 12:17:36,442 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/e9ed22dba1ab488cbd50369fd7406045/FLAG07823dc76 16.80/10.60 [2019-03-28 12:17:36,833 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/e9ed22dba1ab488cbd50369fd7406045 16.80/10.60 [2019-03-28 12:17:36,844 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 16.80/10.60 [2019-03-28 12:17:36,846 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 16.80/10.60 [2019-03-28 12:17:36,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 16.80/10.60 [2019-03-28 12:17:36,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 16.80/10.60 [2019-03-28 12:17:36,851 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 16.80/10.60 [2019-03-28 12:17:36,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:17:36" (1/1) ... 16.80/10.60 [2019-03-28 12:17:36,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e7f1711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:17:36, skipping insertion in model container 16.80/10.60 [2019-03-28 12:17:36,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:17:36" (1/1) ... 16.80/10.60 [2019-03-28 12:17:36,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 16.80/10.60 [2019-03-28 12:17:36,880 INFO L176 MainTranslator]: Built tables and reachable declarations 16.80/10.60 [2019-03-28 12:17:37,036 INFO L206 PostProcessor]: Analyzing one entry point: main 16.80/10.60 [2019-03-28 12:17:37,041 INFO L191 MainTranslator]: Completed pre-run 16.80/10.60 [2019-03-28 12:17:37,056 INFO L206 PostProcessor]: Analyzing one entry point: main 16.80/10.60 [2019-03-28 12:17:37,070 INFO L195 MainTranslator]: Completed translation 16.80/10.60 [2019-03-28 12:17:37,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:17:37 WrapperNode 16.80/10.60 [2019-03-28 12:17:37,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 16.80/10.60 [2019-03-28 12:17:37,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 16.80/10.60 [2019-03-28 12:17:37,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 16.80/10.60 [2019-03-28 12:17:37,072 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 16.80/10.60 [2019-03-28 12:17:37,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:17:37" (1/1) ... 16.80/10.60 [2019-03-28 12:17:37,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:17:37" (1/1) ... 16.80/10.60 [2019-03-28 12:17:37,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 16.80/10.60 [2019-03-28 12:17:37,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 16.80/10.60 [2019-03-28 12:17:37,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 16.80/10.60 [2019-03-28 12:17:37,166 INFO L276 PluginConnector]: Boogie Preprocessor initialized 16.80/10.60 [2019-03-28 12:17:37,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:17:37" (1/1) ... 16.80/10.60 [2019-03-28 12:17:37,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:17:37" (1/1) ... 16.80/10.60 [2019-03-28 12:17:37,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:17:37" (1/1) ... 16.80/10.60 [2019-03-28 12:17:37,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:17:37" (1/1) ... 16.80/10.60 [2019-03-28 12:17:37,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:17:37" (1/1) ... 16.80/10.60 [2019-03-28 12:17:37,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:17:37" (1/1) ... 16.80/10.60 [2019-03-28 12:17:37,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:17:37" (1/1) ... 16.80/10.60 [2019-03-28 12:17:37,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 16.80/10.60 [2019-03-28 12:17:37,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 16.80/10.60 [2019-03-28 12:17:37,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... 16.80/10.60 [2019-03-28 12:17:37,186 INFO L276 PluginConnector]: RCFGBuilder initialized 16.80/10.60 [2019-03-28 12:17:37,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:17:37" (1/1) ... 16.80/10.60 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.80/10.60 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 16.80/10.60 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 16.80/10.60 [2019-03-28 12:17:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 16.80/10.60 [2019-03-28 12:17:37,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 16.80/10.60 [2019-03-28 12:17:37,403 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 16.80/10.60 [2019-03-28 12:17:37,403 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. 16.80/10.60 [2019-03-28 12:17:37,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:17:37 BoogieIcfgContainer 16.80/10.60 [2019-03-28 12:17:37,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 16.80/10.60 [2019-03-28 12:17:37,406 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 16.80/10.60 [2019-03-28 12:17:37,406 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 16.80/10.60 [2019-03-28 12:17:37,408 INFO L276 PluginConnector]: BlockEncodingV2 initialized 16.80/10.60 [2019-03-28 12:17:37,409 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:17:37" (1/1) ... 16.80/10.60 [2019-03-28 12:17:37,424 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 8 edges 16.80/10.60 [2019-03-28 12:17:37,425 INFO L258 BlockEncoder]: Using Remove infeasible edges 16.80/10.60 [2019-03-28 12:17:37,426 INFO L263 BlockEncoder]: Using Maximize final states 16.80/10.60 [2019-03-28 12:17:37,427 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 16.80/10.60 [2019-03-28 12:17:37,427 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 16.80/10.60 [2019-03-28 12:17:37,429 INFO L296 BlockEncoder]: Using Remove sink states 16.80/10.60 [2019-03-28 12:17:37,430 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 16.80/10.60 [2019-03-28 12:17:37,431 INFO L179 BlockEncoder]: Using Rewrite not-equals 16.80/10.60 [2019-03-28 12:17:37,447 INFO L185 BlockEncoder]: Using Use SBE 16.80/10.60 [2019-03-28 12:17:37,464 INFO L200 BlockEncoder]: SBE split 1 edges 16.80/10.60 [2019-03-28 12:17:37,469 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility 16.80/10.60 [2019-03-28 12:17:37,471 INFO L71 MaximizeFinalStates]: 0 new accepting states 16.80/10.60 [2019-03-28 12:17:37,485 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding 16.80/10.60 [2019-03-28 12:17:37,487 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states 16.80/10.60 [2019-03-28 12:17:37,489 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 16.80/10.60 [2019-03-28 12:17:37,489 INFO L71 MaximizeFinalStates]: 0 new accepting states 16.80/10.60 [2019-03-28 12:17:37,489 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 16.80/10.60 [2019-03-28 12:17:37,489 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 16.80/10.60 [2019-03-28 12:17:37,490 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 5 edges 16.80/10.60 [2019-03-28 12:17:37,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:17:37 BasicIcfg 16.80/10.60 [2019-03-28 12:17:37,490 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 16.80/10.60 [2019-03-28 12:17:37,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 16.80/10.60 [2019-03-28 12:17:37,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... 16.80/10.60 [2019-03-28 12:17:37,495 INFO L276 PluginConnector]: TraceAbstraction initialized 16.80/10.60 [2019-03-28 12:17:37,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 12:17:36" (1/4) ... 16.80/10.60 [2019-03-28 12:17:37,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e838e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:17:37, skipping insertion in model container 16.80/10.60 [2019-03-28 12:17:37,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:17:37" (2/4) ... 16.80/10.60 [2019-03-28 12:17:37,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e838e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:17:37, skipping insertion in model container 16.80/10.60 [2019-03-28 12:17:37,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:17:37" (3/4) ... 16.80/10.60 [2019-03-28 12:17:37,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e838e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:17:37, skipping insertion in model container 16.80/10.60 [2019-03-28 12:17:37,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:17:37" (4/4) ... 16.80/10.60 [2019-03-28 12:17:37,499 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 16.80/10.60 [2019-03-28 12:17:37,510 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 16.80/10.60 [2019-03-28 12:17:37,520 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. 16.80/10.60 [2019-03-28 12:17:37,539 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. 16.80/10.60 [2019-03-28 12:17:37,569 INFO L133 ementStrategyFactory]: Using default assertion order modulation 16.80/10.60 [2019-03-28 12:17:37,570 INFO L382 AbstractCegarLoop]: Interprodecural is true 16.80/10.60 [2019-03-28 12:17:37,570 INFO L383 AbstractCegarLoop]: Hoare is true 16.80/10.60 [2019-03-28 12:17:37,570 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 16.80/10.60 [2019-03-28 12:17:37,570 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 16.80/10.60 [2019-03-28 12:17:37,570 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 16.80/10.60 [2019-03-28 12:17:37,570 INFO L387 AbstractCegarLoop]: Difference is false 16.80/10.60 [2019-03-28 12:17:37,571 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 16.80/10.60 [2019-03-28 12:17:37,571 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 16.80/10.60 [2019-03-28 12:17:37,585 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. 16.80/10.60 [2019-03-28 12:17:37,591 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. 16.80/10.60 [2019-03-28 12:17:37,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. 16.80/10.60 [2019-03-28 12:17:37,649 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. 16.80/10.60 [2019-03-28 12:17:37,649 INFO L451 ceAbstractionStarter]: At program point L7-2(lines 7 10) the Hoare annotation is: true 16.80/10.60 [2019-03-28 12:17:37,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:17:37 BasicIcfg 16.80/10.60 [2019-03-28 12:17:37,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 16.80/10.60 [2019-03-28 12:17:37,659 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 16.80/10.60 [2019-03-28 12:17:37,659 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 16.80/10.60 [2019-03-28 12:17:37,663 INFO L276 PluginConnector]: BuchiAutomizer initialized 16.80/10.60 [2019-03-28 12:17:37,664 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 16.80/10.60 [2019-03-28 12:17:37,664 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.03 12:17:36" (1/5) ... 16.80/10.60 [2019-03-28 12:17:37,665 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d49d24d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 12:17:37, skipping insertion in model container 16.80/10.60 [2019-03-28 12:17:37,665 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 16.80/10.60 [2019-03-28 12:17:37,665 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:17:37" (2/5) ... 16.80/10.60 [2019-03-28 12:17:37,666 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d49d24d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 12:17:37, skipping insertion in model container 16.80/10.60 [2019-03-28 12:17:37,666 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 16.80/10.60 [2019-03-28 12:17:37,666 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:17:37" (3/5) ... 16.80/10.60 [2019-03-28 12:17:37,666 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d49d24d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 12:17:37, skipping insertion in model container 16.80/10.60 [2019-03-28 12:17:37,667 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 16.80/10.60 [2019-03-28 12:17:37,667 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:17:37" (4/5) ... 16.80/10.60 [2019-03-28 12:17:37,667 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d49d24d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 12:17:37, skipping insertion in model container 16.80/10.60 [2019-03-28 12:17:37,667 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 16.80/10.60 [2019-03-28 12:17:37,667 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:17:37" (5/5) ... 16.80/10.60 [2019-03-28 12:17:37,669 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 16.80/10.60 [2019-03-28 12:17:37,698 INFO L133 ementStrategyFactory]: Using default assertion order modulation 16.80/10.60 [2019-03-28 12:17:37,699 INFO L374 BuchiCegarLoop]: Interprodecural is true 16.80/10.60 [2019-03-28 12:17:37,699 INFO L375 BuchiCegarLoop]: Hoare is true 16.80/10.60 [2019-03-28 12:17:37,699 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates 16.80/10.60 [2019-03-28 12:17:37,699 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE 16.80/10.60 [2019-03-28 12:17:37,699 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION 16.80/10.60 [2019-03-28 12:17:37,699 INFO L379 BuchiCegarLoop]: Difference is false 16.80/10.60 [2019-03-28 12:17:37,699 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA 16.80/10.60 [2019-03-28 12:17:37,700 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== 16.80/10.60 [2019-03-28 12:17:37,703 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. 16.80/10.60 [2019-03-28 12:17:37,721 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 16.80/10.60 [2019-03-28 12:17:37,722 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 16.80/10.60 [2019-03-28 12:17:37,722 INFO L119 BuchiIsEmpty]: Starting construction of run 16.80/10.60 [2019-03-28 12:17:37,728 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 16.80/10.60 [2019-03-28 12:17:37,728 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 16.80/10.60 [2019-03-28 12:17:37,728 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ 16.80/10.60 [2019-03-28 12:17:37,729 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. 16.80/10.60 [2019-03-28 12:17:37,729 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 16.80/10.60 [2019-03-28 12:17:37,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 16.80/10.60 [2019-03-28 12:17:37,729 INFO L119 BuchiIsEmpty]: Starting construction of run 16.80/10.60 [2019-03-28 12:17:37,730 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 16.80/10.60 [2019-03-28 12:17:37,730 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 16.80/10.60 [2019-03-28 12:17:37,735 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [24] ULTIMATE.startENTRY-->L7-2: Formula: (and (= |v_ULTIMATE.start_f_#in~y_1| |v_ULTIMATE.start_main_#t~nondet2_2|) (= v_ULTIMATE.start_f_~y_1 |v_ULTIMATE.start_f_#in~y_1|) (= v_ULTIMATE.start_f_~c~0_1 0) (= v_ULTIMATE.start_f_~x_1 |v_ULTIMATE.start_f_#in~x_1|) (= |v_ULTIMATE.start_f_#in~x_1| |v_ULTIMATE.start_main_#t~nondet1_2|) (= v_ULTIMATE.start_f_~flag~0_1 1)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_2|, ULTIMATE.start_f_~flag~0=v_ULTIMATE.start_f_~flag~0_1, ULTIMATE.start_f_~y=v_ULTIMATE.start_f_~y_1, ULTIMATE.start_f_~x=v_ULTIMATE.start_f_~x_1, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|, ULTIMATE.start_f_~c~0=v_ULTIMATE.start_f_~c~0_1, ULTIMATE.start_f_#res=|v_ULTIMATE.start_f_#res_2|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_f_#in~y=|v_ULTIMATE.start_f_#in~y_1|, ULTIMATE.start_f_#in~x=|v_ULTIMATE.start_f_#in~x_1|, ULTIMATE.start_f_#t~post0=|v_ULTIMATE.start_f_#t~post0_1|, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_3|} AuxVars[] AssignedVars[ULTIMATE.start_f_#res, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_f_~flag~0, ULTIMATE.start_f_~y, ULTIMATE.start_f_~x, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_f_#in~y, ULTIMATE.start_f_#in~x, ULTIMATE.start_f_#t~post0, ULTIMATE.start_f_~c~0, ULTIMATE.start_main_#t~ret3] 3#L7-2true 16.80/10.60 [2019-03-28 12:17:37,736 INFO L796 eck$LassoCheckResult]: Loop: 3#L7-2true [32] L7-2-->L7-2: Formula: (and (= v_ULTIMATE.start_f_~c~0_3 (+ v_ULTIMATE.start_f_~c~0_4 1)) (= v_ULTIMATE.start_f_~flag~0_4 0) (< v_ULTIMATE.start_f_~flag~0_5 0) (= (+ v_ULTIMATE.start_f_~x_4 1) v_ULTIMATE.start_f_~x_3) (>= v_ULTIMATE.start_f_~x_4 v_ULTIMATE.start_f_~y_3)) InVars {ULTIMATE.start_f_~flag~0=v_ULTIMATE.start_f_~flag~0_5, ULTIMATE.start_f_~y=v_ULTIMATE.start_f_~y_3, ULTIMATE.start_f_~c~0=v_ULTIMATE.start_f_~c~0_4, ULTIMATE.start_f_~x=v_ULTIMATE.start_f_~x_4} OutVars{ULTIMATE.start_f_#t~post0=|v_ULTIMATE.start_f_#t~post0_2|, ULTIMATE.start_f_~y=v_ULTIMATE.start_f_~y_3, ULTIMATE.start_f_~flag~0=v_ULTIMATE.start_f_~flag~0_4, ULTIMATE.start_f_~c~0=v_ULTIMATE.start_f_~c~0_3, ULTIMATE.start_f_~x=v_ULTIMATE.start_f_~x_3} AuxVars[] AssignedVars[ULTIMATE.start_f_~flag~0, ULTIMATE.start_f_~x, ULTIMATE.start_f_#t~post0, ULTIMATE.start_f_~c~0] 3#L7-2true 16.80/10.60 [2019-03-28 12:17:37,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.80/10.60 [2019-03-28 12:17:37,744 INFO L82 PathProgramCache]: Analyzing trace with hash 55, now seen corresponding path program 1 times 16.80/10.60 [2019-03-28 12:17:37,746 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.80/10.60 [2019-03-28 12:17:37,746 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.80/10.60 [2019-03-28 12:17:37,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:37,767 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:37,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.80/10.60 [2019-03-28 12:17:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.80/10.60 [2019-03-28 12:17:37,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.80/10.60 [2019-03-28 12:17:37,817 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times 16.80/10.60 [2019-03-28 12:17:37,817 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.80/10.60 [2019-03-28 12:17:37,818 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.80/10.60 [2019-03-28 12:17:37,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:37,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:37,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:37,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.80/10.60 [2019-03-28 12:17:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.80/10.60 [2019-03-28 12:17:37,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.80/10.60 [2019-03-28 12:17:37,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1737, now seen corresponding path program 1 times 16.80/10.60 [2019-03-28 12:17:37,832 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.80/10.60 [2019-03-28 12:17:37,833 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.80/10.60 [2019-03-28 12:17:37,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:37,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:37,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.80/10.60 [2019-03-28 12:17:37,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.80/10.60 [2019-03-28 12:17:37,883 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 16.80/10.60 [2019-03-28 12:17:37,883 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 16.80/10.60 [2019-03-28 12:17:37,936 INFO L216 LassoAnalysis]: Preferences: 16.80/10.60 [2019-03-28 12:17:37,937 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 16.80/10.60 [2019-03-28 12:17:37,938 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 16.80/10.60 [2019-03-28 12:17:37,938 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 16.80/10.60 [2019-03-28 12:17:37,938 INFO L127 ssoRankerPreferences]: Use exernal solver: true 16.80/10.60 [2019-03-28 12:17:37,938 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:37,938 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 16.80/10.60 [2019-03-28 12:17:37,938 INFO L130 ssoRankerPreferences]: Path of dumped script: 16.80/10.60 [2019-03-28 12:17:37,939 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 16.80/10.60 [2019-03-28 12:17:37,939 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 16.80/10.60 [2019-03-28 12:17:37,939 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 16.80/10.60 [2019-03-28 12:17:37,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:37,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:37,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:37,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:38,073 INFO L300 LassoAnalysis]: Preprocessing complete. 16.80/10.60 [2019-03-28 12:17:38,074 INFO L412 LassoAnalysis]: Checking for nontermination... 16.80/10.60 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.80/10.60 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.80/10.60 Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:38,081 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.80/10.60 [2019-03-28 12:17:38,098 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.80/10.60 [2019-03-28 12:17:38,108 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.80/10.60 [2019-03-28 12:17:38,108 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~post0=0} Honda state: {ULTIMATE.start_f_#t~post0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 16.80/10.60 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.80/10.60 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.80/10.60 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:38,139 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.80/10.60 [2019-03-28 12:17:38,139 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.80/10.60 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.80/10.60 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.80/10.60 Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:38,171 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 16.80/10.60 [2019-03-28 12:17:38,171 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.80/10.60 [2019-03-28 12:17:38,199 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.80/10.60 [2019-03-28 12:17:38,200 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~y=0, ULTIMATE.start_f_~x=0} Honda state: {ULTIMATE.start_f_~y=0, ULTIMATE.start_f_~x=0} Generalized eigenvectors: [{ULTIMATE.start_f_~y=4, ULTIMATE.start_f_~x=5}, {ULTIMATE.start_f_~y=4, ULTIMATE.start_f_~x=4}, {ULTIMATE.start_f_~y=-8, ULTIMATE.start_f_~x=-8}] Lambdas: [1, 3, 1] Nus: [0, 1] 16.80/10.60 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.80/10.60 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.80/10.60 Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:38,236 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.80/10.60 [2019-03-28 12:17:38,236 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.80/10.60 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.80/10.60 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.80/10.60 Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:38,268 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 16.80/10.60 [2019-03-28 12:17:38,268 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.80/10.60 [2019-03-28 12:17:38,303 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 16.80/10.60 [2019-03-28 12:17:38,306 INFO L216 LassoAnalysis]: Preferences: 16.80/10.60 [2019-03-28 12:17:38,306 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 16.80/10.60 [2019-03-28 12:17:38,306 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 16.80/10.60 [2019-03-28 12:17:38,306 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 16.80/10.60 [2019-03-28 12:17:38,306 INFO L127 ssoRankerPreferences]: Use exernal solver: false 16.80/10.60 [2019-03-28 12:17:38,306 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:38,306 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 16.80/10.60 [2019-03-28 12:17:38,307 INFO L130 ssoRankerPreferences]: Path of dumped script: 16.80/10.60 [2019-03-28 12:17:38,307 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 16.80/10.60 [2019-03-28 12:17:38,307 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 16.80/10.60 [2019-03-28 12:17:38,307 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 16.80/10.60 [2019-03-28 12:17:38,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:38,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:38,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:38,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:38,414 INFO L300 LassoAnalysis]: Preprocessing complete. 16.80/10.60 [2019-03-28 12:17:38,420 INFO L497 LassoAnalysis]: Using template 'affine'. 16.80/10.60 [2019-03-28 12:17:38,422 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.80/10.60 Termination analysis: LINEAR_WITH_GUESSES 16.80/10.60 Number of strict supporting invariants: 0 16.80/10.60 Number of non-strict supporting invariants: 1 16.80/10.60 Consider only non-deceasing supporting invariants: true 16.80/10.60 Simplify termination arguments: true 16.80/10.60 Simplify supporting invariants: trueOverapproximate stem: false 16.80/10.60 [2019-03-28 12:17:38,423 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.80/10.60 [2019-03-28 12:17:38,423 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 16.80/10.60 [2019-03-28 12:17:38,424 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.80/10.60 [2019-03-28 12:17:38,424 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.80/10.60 [2019-03-28 12:17:38,425 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.80/10.60 [2019-03-28 12:17:38,427 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 16.80/10.60 [2019-03-28 12:17:38,427 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 16.80/10.60 [2019-03-28 12:17:38,429 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 16.80/10.60 [2019-03-28 12:17:38,429 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.80/10.60 Termination analysis: LINEAR_WITH_GUESSES 16.80/10.60 Number of strict supporting invariants: 0 16.80/10.60 Number of non-strict supporting invariants: 1 16.80/10.60 Consider only non-deceasing supporting invariants: true 16.80/10.60 Simplify termination arguments: true 16.80/10.60 Simplify supporting invariants: trueOverapproximate stem: false 16.80/10.60 [2019-03-28 12:17:38,430 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.80/10.60 [2019-03-28 12:17:38,430 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 16.80/10.60 [2019-03-28 12:17:38,430 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.80/10.60 [2019-03-28 12:17:38,431 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.80/10.60 [2019-03-28 12:17:38,431 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.80/10.60 [2019-03-28 12:17:38,432 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 16.80/10.60 [2019-03-28 12:17:38,432 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 16.80/10.60 [2019-03-28 12:17:38,438 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 16.80/10.60 [2019-03-28 12:17:38,439 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.80/10.60 Termination analysis: LINEAR_WITH_GUESSES 16.80/10.60 Number of strict supporting invariants: 0 16.80/10.60 Number of non-strict supporting invariants: 1 16.80/10.60 Consider only non-deceasing supporting invariants: true 16.80/10.60 Simplify termination arguments: true 16.80/10.60 Simplify supporting invariants: trueOverapproximate stem: false 16.80/10.60 [2019-03-28 12:17:38,439 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.80/10.60 [2019-03-28 12:17:38,439 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 16.80/10.60 [2019-03-28 12:17:38,440 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.80/10.60 [2019-03-28 12:17:38,440 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.80/10.60 [2019-03-28 12:17:38,440 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.80/10.60 [2019-03-28 12:17:38,441 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 16.80/10.60 [2019-03-28 12:17:38,441 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 16.80/10.60 [2019-03-28 12:17:38,446 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 16.80/10.60 [2019-03-28 12:17:38,451 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 16.80/10.60 [2019-03-28 12:17:38,451 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. 16.80/10.60 [2019-03-28 12:17:38,453 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 16.80/10.60 [2019-03-28 12:17:38,453 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 16.80/10.60 [2019-03-28 12:17:38,453 INFO L518 LassoAnalysis]: Proved termination. 16.80/10.60 [2019-03-28 12:17:38,454 INFO L520 LassoAnalysis]: Termination argument consisting of: 16.80/10.60 Ranking function f(ULTIMATE.start_f_~flag~0) = -1*ULTIMATE.start_f_~flag~0 16.80/10.60 Supporting invariants [] 16.80/10.60 [2019-03-28 12:17:38,455 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 16.80/10.60 [2019-03-28 12:17:38,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.80/10.60 [2019-03-28 12:17:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.80/10.60 [2019-03-28 12:17:38,490 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core 16.80/10.60 [2019-03-28 12:17:38,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... 16.80/10.60 [2019-03-28 12:17:38,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.80/10.60 [2019-03-28 12:17:38,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core 16.80/10.60 [2019-03-28 12:17:38,502 INFO L279 TraceCheckSpWp]: Computing forward predicates... 16.80/10.60 [2019-03-28 12:17:38,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.80/10.60 [2019-03-28 12:17:38,514 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization 16.80/10.60 [2019-03-28 12:17:38,519 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates 16.80/10.60 [2019-03-28 12:17:38,520 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 2 states. Second operand 2 states. 16.80/10.60 [2019-03-28 12:17:38,556 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 2 states.. Second operand 2 states. Result 5 states and 17 transitions. Complement of second has 2 states. 16.80/10.60 [2019-03-28 12:17:38,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states 16.80/10.60 [2019-03-28 12:17:38,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. 16.80/10.60 [2019-03-28 12:17:38,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 8 transitions. 16.80/10.60 [2019-03-28 12:17:38,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 1 letters. Loop has 1 letters. 16.80/10.60 [2019-03-28 12:17:38,562 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.80/10.60 [2019-03-28 12:17:38,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 2 letters. Loop has 1 letters. 16.80/10.60 [2019-03-28 12:17:38,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.80/10.60 [2019-03-28 12:17:38,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. 16.80/10.60 [2019-03-28 12:17:38,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.80/10.60 [2019-03-28 12:17:38,569 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 17 transitions. 16.80/10.60 [2019-03-28 12:17:38,570 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 16.80/10.60 [2019-03-28 12:17:38,575 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 5 states and 17 transitions. 16.80/10.60 [2019-03-28 12:17:38,576 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 16.80/10.60 [2019-03-28 12:17:38,576 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 16.80/10.60 [2019-03-28 12:17:38,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 17 transitions. 16.80/10.60 [2019-03-28 12:17:38,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 16.80/10.60 [2019-03-28 12:17:38,577 INFO L706 BuchiCegarLoop]: Abstraction has 5 states and 17 transitions. 16.80/10.60 [2019-03-28 12:17:38,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 17 transitions. 16.80/10.60 [2019-03-28 12:17:38,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 4. 16.80/10.60 [2019-03-28 12:17:38,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. 16.80/10.60 [2019-03-28 12:17:38,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. 16.80/10.60 [2019-03-28 12:17:38,607 INFO L729 BuchiCegarLoop]: Abstraction has 4 states and 13 transitions. 16.80/10.60 [2019-03-28 12:17:38,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. 16.80/10.60 [2019-03-28 12:17:38,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 16.80/10.60 [2019-03-28 12:17:38,611 INFO L87 Difference]: Start difference. First operand 4 states and 13 transitions. Second operand 3 states. 16.80/10.60 [2019-03-28 12:17:38,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 16.80/10.60 [2019-03-28 12:17:38,630 INFO L93 Difference]: Finished difference Result 4 states and 9 transitions. 16.80/10.60 [2019-03-28 12:17:38,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 16.80/10.60 [2019-03-28 12:17:38,632 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4 states and 9 transitions. 16.80/10.60 [2019-03-28 12:17:38,633 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 16.80/10.60 [2019-03-28 12:17:38,633 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4 states to 4 states and 9 transitions. 16.80/10.60 [2019-03-28 12:17:38,633 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 16.80/10.60 [2019-03-28 12:17:38,634 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 16.80/10.60 [2019-03-28 12:17:38,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 9 transitions. 16.80/10.60 [2019-03-28 12:17:38,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 16.80/10.60 [2019-03-28 12:17:38,634 INFO L706 BuchiCegarLoop]: Abstraction has 4 states and 9 transitions. 16.80/10.60 [2019-03-28 12:17:38,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 9 transitions. 16.80/10.60 [2019-03-28 12:17:38,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 3. 16.80/10.60 [2019-03-28 12:17:38,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 16.80/10.60 [2019-03-28 12:17:38,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. 16.80/10.60 [2019-03-28 12:17:38,636 INFO L729 BuchiCegarLoop]: Abstraction has 3 states and 7 transitions. 16.80/10.60 [2019-03-28 12:17:38,636 INFO L609 BuchiCegarLoop]: Abstraction has 3 states and 7 transitions. 16.80/10.60 [2019-03-28 12:17:38,636 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ 16.80/10.60 [2019-03-28 12:17:38,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states and 7 transitions. 16.80/10.60 [2019-03-28 12:17:38,637 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 16.80/10.60 [2019-03-28 12:17:38,637 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 16.80/10.60 [2019-03-28 12:17:38,637 INFO L119 BuchiIsEmpty]: Starting construction of run 16.80/10.60 [2019-03-28 12:17:38,637 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 16.80/10.60 [2019-03-28 12:17:38,637 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 16.80/10.60 [2019-03-28 12:17:38,638 INFO L794 eck$LassoCheckResult]: Stem: 43#ULTIMATE.startENTRY [24] ULTIMATE.startENTRY-->L7-2: Formula: (and (= |v_ULTIMATE.start_f_#in~y_1| |v_ULTIMATE.start_main_#t~nondet2_2|) (= v_ULTIMATE.start_f_~y_1 |v_ULTIMATE.start_f_#in~y_1|) (= v_ULTIMATE.start_f_~c~0_1 0) (= v_ULTIMATE.start_f_~x_1 |v_ULTIMATE.start_f_#in~x_1|) (= |v_ULTIMATE.start_f_#in~x_1| |v_ULTIMATE.start_main_#t~nondet1_2|) (= v_ULTIMATE.start_f_~flag~0_1 1)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_2|, ULTIMATE.start_f_~flag~0=v_ULTIMATE.start_f_~flag~0_1, ULTIMATE.start_f_~y=v_ULTIMATE.start_f_~y_1, ULTIMATE.start_f_~x=v_ULTIMATE.start_f_~x_1, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|, ULTIMATE.start_f_~c~0=v_ULTIMATE.start_f_~c~0_1, ULTIMATE.start_f_#res=|v_ULTIMATE.start_f_#res_2|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_f_#in~y=|v_ULTIMATE.start_f_#in~y_1|, ULTIMATE.start_f_#in~x=|v_ULTIMATE.start_f_#in~x_1|, ULTIMATE.start_f_#t~post0=|v_ULTIMATE.start_f_#t~post0_1|, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_3|} AuxVars[] AssignedVars[ULTIMATE.start_f_#res, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_f_~flag~0, ULTIMATE.start_f_~y, ULTIMATE.start_f_~x, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_f_#in~y, ULTIMATE.start_f_#in~x, ULTIMATE.start_f_#t~post0, ULTIMATE.start_f_~c~0, ULTIMATE.start_main_#t~ret3] 41#L7-2 16.80/10.60 [2019-03-28 12:17:38,638 INFO L796 eck$LassoCheckResult]: Loop: 41#L7-2 [29] L7-2-->L7-2: Formula: (and (= v_ULTIMATE.start_f_~c~0_3 (+ v_ULTIMATE.start_f_~c~0_4 1)) (= v_ULTIMATE.start_f_~flag~0_4 1) (< v_ULTIMATE.start_f_~x_4 v_ULTIMATE.start_f_~y_3) (= (+ v_ULTIMATE.start_f_~x_4 1) v_ULTIMATE.start_f_~x_3) (> v_ULTIMATE.start_f_~flag~0_5 0)) InVars {ULTIMATE.start_f_~flag~0=v_ULTIMATE.start_f_~flag~0_5, ULTIMATE.start_f_~y=v_ULTIMATE.start_f_~y_3, ULTIMATE.start_f_~c~0=v_ULTIMATE.start_f_~c~0_4, ULTIMATE.start_f_~x=v_ULTIMATE.start_f_~x_4} OutVars{ULTIMATE.start_f_#t~post0=|v_ULTIMATE.start_f_#t~post0_2|, ULTIMATE.start_f_~y=v_ULTIMATE.start_f_~y_3, ULTIMATE.start_f_~flag~0=v_ULTIMATE.start_f_~flag~0_4, ULTIMATE.start_f_~c~0=v_ULTIMATE.start_f_~c~0_3, ULTIMATE.start_f_~x=v_ULTIMATE.start_f_~x_3} AuxVars[] AssignedVars[ULTIMATE.start_f_~flag~0, ULTIMATE.start_f_~x, ULTIMATE.start_f_#t~post0, ULTIMATE.start_f_~c~0] 41#L7-2 16.80/10.60 [2019-03-28 12:17:38,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.80/10.60 [2019-03-28 12:17:38,638 INFO L82 PathProgramCache]: Analyzing trace with hash 55, now seen corresponding path program 2 times 16.80/10.60 [2019-03-28 12:17:38,638 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.80/10.60 [2019-03-28 12:17:38,639 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.80/10.60 [2019-03-28 12:17:38,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:38,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:38,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.80/10.60 [2019-03-28 12:17:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.80/10.60 [2019-03-28 12:17:38,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.80/10.60 [2019-03-28 12:17:38,646 INFO L82 PathProgramCache]: Analyzing trace with hash 60, now seen corresponding path program 1 times 16.80/10.60 [2019-03-28 12:17:38,646 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.80/10.60 [2019-03-28 12:17:38,646 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.80/10.60 [2019-03-28 12:17:38,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:38,647 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:38,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.80/10.60 [2019-03-28 12:17:38,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.80/10.60 [2019-03-28 12:17:38,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.80/10.60 [2019-03-28 12:17:38,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1734, now seen corresponding path program 1 times 16.80/10.60 [2019-03-28 12:17:38,654 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.80/10.60 [2019-03-28 12:17:38,654 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.80/10.60 [2019-03-28 12:17:38,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:38,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:38,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.80/10.60 [2019-03-28 12:17:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.80/10.60 [2019-03-28 12:17:38,691 INFO L216 LassoAnalysis]: Preferences: 16.80/10.60 [2019-03-28 12:17:38,691 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 16.80/10.60 [2019-03-28 12:17:38,691 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 16.80/10.60 [2019-03-28 12:17:38,692 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 16.80/10.60 [2019-03-28 12:17:38,692 INFO L127 ssoRankerPreferences]: Use exernal solver: true 16.80/10.60 [2019-03-28 12:17:38,692 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:38,692 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 16.80/10.60 [2019-03-28 12:17:38,692 INFO L130 ssoRankerPreferences]: Path of dumped script: 16.80/10.60 [2019-03-28 12:17:38,692 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 16.80/10.60 [2019-03-28 12:17:38,692 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 16.80/10.60 [2019-03-28 12:17:38,693 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 16.80/10.60 [2019-03-28 12:17:38,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:38,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:38,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:38,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:38,747 INFO L300 LassoAnalysis]: Preprocessing complete. 16.80/10.60 [2019-03-28 12:17:38,748 INFO L412 LassoAnalysis]: Checking for nontermination... 16.80/10.60 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.80/10.60 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.80/10.60 Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:38,752 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.80/10.60 [2019-03-28 12:17:38,752 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.80/10.60 [2019-03-28 12:17:38,756 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.80/10.60 [2019-03-28 12:17:38,756 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~post0=0} Honda state: {ULTIMATE.start_f_#t~post0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 16.80/10.60 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.80/10.60 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.80/10.60 Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:38,785 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.80/10.60 [2019-03-28 12:17:38,786 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.80/10.60 [2019-03-28 12:17:38,790 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.80/10.60 [2019-03-28 12:17:38,790 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~flag~0=1} Honda state: {ULTIMATE.start_f_~flag~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 16.80/10.60 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.80/10.60 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.80/10.60 Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:38,821 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.80/10.60 [2019-03-28 12:17:38,822 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.80/10.60 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.80/10.60 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.80/10.60 Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:38,855 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 16.80/10.60 [2019-03-28 12:17:38,855 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.80/10.60 [2019-03-28 12:17:39,065 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 16.80/10.60 [2019-03-28 12:17:39,067 INFO L216 LassoAnalysis]: Preferences: 16.80/10.60 [2019-03-28 12:17:39,067 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 16.80/10.60 [2019-03-28 12:17:39,067 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 16.80/10.60 [2019-03-28 12:17:39,068 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 16.80/10.60 [2019-03-28 12:17:39,068 INFO L127 ssoRankerPreferences]: Use exernal solver: false 16.80/10.60 [2019-03-28 12:17:39,068 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:39,068 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 16.80/10.60 [2019-03-28 12:17:39,068 INFO L130 ssoRankerPreferences]: Path of dumped script: 16.80/10.60 [2019-03-28 12:17:39,068 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 16.80/10.60 [2019-03-28 12:17:39,068 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 16.80/10.60 [2019-03-28 12:17:39,069 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 16.80/10.60 [2019-03-28 12:17:39,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:39,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:39,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:39,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:39,157 INFO L300 LassoAnalysis]: Preprocessing complete. 16.80/10.60 [2019-03-28 12:17:39,157 INFO L497 LassoAnalysis]: Using template 'affine'. 16.80/10.60 [2019-03-28 12:17:39,158 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.80/10.60 Termination analysis: LINEAR_WITH_GUESSES 16.80/10.60 Number of strict supporting invariants: 0 16.80/10.60 Number of non-strict supporting invariants: 1 16.80/10.60 Consider only non-deceasing supporting invariants: true 16.80/10.60 Simplify termination arguments: true 16.80/10.60 Simplify supporting invariants: trueOverapproximate stem: false 16.80/10.60 [2019-03-28 12:17:39,159 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.80/10.60 [2019-03-28 12:17:39,159 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 16.80/10.60 [2019-03-28 12:17:39,159 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.80/10.60 [2019-03-28 12:17:39,159 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.80/10.60 [2019-03-28 12:17:39,160 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.80/10.60 [2019-03-28 12:17:39,160 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 16.80/10.60 [2019-03-28 12:17:39,160 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 16.80/10.60 [2019-03-28 12:17:39,162 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 16.80/10.60 [2019-03-28 12:17:39,163 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.80/10.60 Termination analysis: LINEAR_WITH_GUESSES 16.80/10.60 Number of strict supporting invariants: 0 16.80/10.60 Number of non-strict supporting invariants: 1 16.80/10.60 Consider only non-deceasing supporting invariants: true 16.80/10.60 Simplify termination arguments: true 16.80/10.60 Simplify supporting invariants: trueOverapproximate stem: false 16.80/10.60 [2019-03-28 12:17:39,163 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.80/10.60 [2019-03-28 12:17:39,163 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 16.80/10.60 [2019-03-28 12:17:39,164 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.80/10.60 [2019-03-28 12:17:39,164 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.80/10.60 [2019-03-28 12:17:39,164 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.80/10.60 [2019-03-28 12:17:39,165 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 16.80/10.60 [2019-03-28 12:17:39,165 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 16.80/10.60 [2019-03-28 12:17:39,170 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 16.80/10.60 [2019-03-28 12:17:39,171 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.80/10.60 Termination analysis: LINEAR_WITH_GUESSES 16.80/10.60 Number of strict supporting invariants: 0 16.80/10.60 Number of non-strict supporting invariants: 1 16.80/10.60 Consider only non-deceasing supporting invariants: true 16.80/10.60 Simplify termination arguments: true 16.80/10.60 Simplify supporting invariants: trueOverapproximate stem: false 16.80/10.60 [2019-03-28 12:17:39,171 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.80/10.60 [2019-03-28 12:17:39,171 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 16.80/10.60 [2019-03-28 12:17:39,172 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.80/10.60 [2019-03-28 12:17:39,172 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.80/10.60 [2019-03-28 12:17:39,172 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.80/10.60 [2019-03-28 12:17:39,173 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 16.80/10.60 [2019-03-28 12:17:39,173 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 16.80/10.60 [2019-03-28 12:17:39,178 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 16.80/10.60 [2019-03-28 12:17:39,185 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. 16.80/10.60 [2019-03-28 12:17:39,185 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. 16.80/10.60 [2019-03-28 12:17:39,185 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 16.80/10.60 [2019-03-28 12:17:39,186 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 16.80/10.60 [2019-03-28 12:17:39,186 INFO L518 LassoAnalysis]: Proved termination. 16.80/10.60 [2019-03-28 12:17:39,186 INFO L520 LassoAnalysis]: Termination argument consisting of: 16.80/10.60 Ranking function f(ULTIMATE.start_f_~y, ULTIMATE.start_f_~x) = 1*ULTIMATE.start_f_~y - 1*ULTIMATE.start_f_~x 16.80/10.60 Supporting invariants [] 16.80/10.60 [2019-03-28 12:17:39,187 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 16.80/10.60 [2019-03-28 12:17:39,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.80/10.60 [2019-03-28 12:17:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.80/10.60 [2019-03-28 12:17:39,221 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core 16.80/10.60 [2019-03-28 12:17:39,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... 16.80/10.60 [2019-03-28 12:17:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.80/10.60 [2019-03-28 12:17:39,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core 16.80/10.60 [2019-03-28 12:17:39,230 INFO L279 TraceCheckSpWp]: Computing forward predicates... 16.80/10.60 [2019-03-28 12:17:39,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.80/10.60 [2019-03-28 12:17:39,231 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization 16.80/10.60 [2019-03-28 12:17:39,231 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates 16.80/10.60 [2019-03-28 12:17:39,232 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states and 7 transitions. cyclomatic complexity: 5 Second operand 2 states. 16.80/10.60 [2019-03-28 12:17:39,255 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states and 7 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 6 states and 15 transitions. Complement of second has 4 states. 16.80/10.60 [2019-03-28 12:17:39,255 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 16.80/10.60 [2019-03-28 12:17:39,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. 16.80/10.60 [2019-03-28 12:17:39,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. 16.80/10.60 [2019-03-28 12:17:39,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 1 letters. Loop has 1 letters. 16.80/10.60 [2019-03-28 12:17:39,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.80/10.60 [2019-03-28 12:17:39,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 2 letters. Loop has 1 letters. 16.80/10.60 [2019-03-28 12:17:39,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.80/10.60 [2019-03-28 12:17:39,257 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 1 letters. Loop has 2 letters. 16.80/10.60 [2019-03-28 12:17:39,258 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.80/10.60 [2019-03-28 12:17:39,259 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 15 transitions. 16.80/10.60 [2019-03-28 12:17:39,260 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 16.80/10.60 [2019-03-28 12:17:39,260 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 15 transitions. 16.80/10.60 [2019-03-28 12:17:39,261 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 16.80/10.60 [2019-03-28 12:17:39,261 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 16.80/10.60 [2019-03-28 12:17:39,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 15 transitions. 16.80/10.60 [2019-03-28 12:17:39,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 16.80/10.60 [2019-03-28 12:17:39,261 INFO L706 BuchiCegarLoop]: Abstraction has 6 states and 15 transitions. 16.80/10.60 [2019-03-28 12:17:39,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 15 transitions. 16.80/10.60 [2019-03-28 12:17:39,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. 16.80/10.60 [2019-03-28 12:17:39,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. 16.80/10.60 [2019-03-28 12:17:39,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. 16.80/10.60 [2019-03-28 12:17:39,263 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 13 transitions. 16.80/10.60 [2019-03-28 12:17:39,263 INFO L609 BuchiCegarLoop]: Abstraction has 5 states and 13 transitions. 16.80/10.60 [2019-03-28 12:17:39,263 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ 16.80/10.60 [2019-03-28 12:17:39,263 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 13 transitions. 16.80/10.60 [2019-03-28 12:17:39,264 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 16.80/10.60 [2019-03-28 12:17:39,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 16.80/10.60 [2019-03-28 12:17:39,264 INFO L119 BuchiIsEmpty]: Starting construction of run 16.80/10.60 [2019-03-28 12:17:39,264 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 16.80/10.60 [2019-03-28 12:17:39,265 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 16.80/10.60 [2019-03-28 12:17:39,265 INFO L794 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRY [24] ULTIMATE.startENTRY-->L7-2: Formula: (and (= |v_ULTIMATE.start_f_#in~y_1| |v_ULTIMATE.start_main_#t~nondet2_2|) (= v_ULTIMATE.start_f_~y_1 |v_ULTIMATE.start_f_#in~y_1|) (= v_ULTIMATE.start_f_~c~0_1 0) (= v_ULTIMATE.start_f_~x_1 |v_ULTIMATE.start_f_#in~x_1|) (= |v_ULTIMATE.start_f_#in~x_1| |v_ULTIMATE.start_main_#t~nondet1_2|) (= v_ULTIMATE.start_f_~flag~0_1 1)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_2|, ULTIMATE.start_f_~flag~0=v_ULTIMATE.start_f_~flag~0_1, ULTIMATE.start_f_~y=v_ULTIMATE.start_f_~y_1, ULTIMATE.start_f_~x=v_ULTIMATE.start_f_~x_1, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|, ULTIMATE.start_f_~c~0=v_ULTIMATE.start_f_~c~0_1, ULTIMATE.start_f_#res=|v_ULTIMATE.start_f_#res_2|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_f_#in~y=|v_ULTIMATE.start_f_#in~y_1|, ULTIMATE.start_f_#in~x=|v_ULTIMATE.start_f_#in~x_1|, ULTIMATE.start_f_#t~post0=|v_ULTIMATE.start_f_#t~post0_1|, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_3|} AuxVars[] AssignedVars[ULTIMATE.start_f_#res, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_f_~flag~0, ULTIMATE.start_f_~y, ULTIMATE.start_f_~x, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_f_#in~y, ULTIMATE.start_f_#in~x, ULTIMATE.start_f_#t~post0, ULTIMATE.start_f_~c~0, ULTIMATE.start_main_#t~ret3] 79#L7-2 [31] L7-2-->L7-2: Formula: (and (= v_ULTIMATE.start_f_~c~0_3 (+ v_ULTIMATE.start_f_~c~0_4 1)) (= v_ULTIMATE.start_f_~flag~0_4 0) (= (+ v_ULTIMATE.start_f_~x_4 1) v_ULTIMATE.start_f_~x_3) (>= v_ULTIMATE.start_f_~x_4 v_ULTIMATE.start_f_~y_3) (> v_ULTIMATE.start_f_~flag~0_5 0)) InVars {ULTIMATE.start_f_~flag~0=v_ULTIMATE.start_f_~flag~0_5, ULTIMATE.start_f_~y=v_ULTIMATE.start_f_~y_3, ULTIMATE.start_f_~c~0=v_ULTIMATE.start_f_~c~0_4, ULTIMATE.start_f_~x=v_ULTIMATE.start_f_~x_4} OutVars{ULTIMATE.start_f_#t~post0=|v_ULTIMATE.start_f_#t~post0_2|, ULTIMATE.start_f_~y=v_ULTIMATE.start_f_~y_3, ULTIMATE.start_f_~flag~0=v_ULTIMATE.start_f_~flag~0_4, ULTIMATE.start_f_~c~0=v_ULTIMATE.start_f_~c~0_3, ULTIMATE.start_f_~x=v_ULTIMATE.start_f_~x_3} AuxVars[] AssignedVars[ULTIMATE.start_f_~flag~0, ULTIMATE.start_f_~x, ULTIMATE.start_f_#t~post0, ULTIMATE.start_f_~c~0] 75#L7-2 16.80/10.60 [2019-03-28 12:17:39,266 INFO L796 eck$LassoCheckResult]: Loop: 75#L7-2 [32] L7-2-->L7-2: Formula: (and (= v_ULTIMATE.start_f_~c~0_3 (+ v_ULTIMATE.start_f_~c~0_4 1)) (= v_ULTIMATE.start_f_~flag~0_4 0) (< v_ULTIMATE.start_f_~flag~0_5 0) (= (+ v_ULTIMATE.start_f_~x_4 1) v_ULTIMATE.start_f_~x_3) (>= v_ULTIMATE.start_f_~x_4 v_ULTIMATE.start_f_~y_3)) InVars {ULTIMATE.start_f_~flag~0=v_ULTIMATE.start_f_~flag~0_5, ULTIMATE.start_f_~y=v_ULTIMATE.start_f_~y_3, ULTIMATE.start_f_~c~0=v_ULTIMATE.start_f_~c~0_4, ULTIMATE.start_f_~x=v_ULTIMATE.start_f_~x_4} OutVars{ULTIMATE.start_f_#t~post0=|v_ULTIMATE.start_f_#t~post0_2|, ULTIMATE.start_f_~y=v_ULTIMATE.start_f_~y_3, ULTIMATE.start_f_~flag~0=v_ULTIMATE.start_f_~flag~0_4, ULTIMATE.start_f_~c~0=v_ULTIMATE.start_f_~c~0_3, ULTIMATE.start_f_~x=v_ULTIMATE.start_f_~x_3} AuxVars[] AssignedVars[ULTIMATE.start_f_~flag~0, ULTIMATE.start_f_~x, ULTIMATE.start_f_#t~post0, ULTIMATE.start_f_~c~0] 75#L7-2 16.80/10.60 [2019-03-28 12:17:39,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.80/10.60 [2019-03-28 12:17:39,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1736, now seen corresponding path program 1 times 16.80/10.60 [2019-03-28 12:17:39,266 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.80/10.60 [2019-03-28 12:17:39,266 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.80/10.60 [2019-03-28 12:17:39,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:39,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:39,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.80/10.60 [2019-03-28 12:17:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.80/10.60 [2019-03-28 12:17:39,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.80/10.60 [2019-03-28 12:17:39,278 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 2 times 16.80/10.60 [2019-03-28 12:17:39,278 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.80/10.60 [2019-03-28 12:17:39,278 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.80/10.60 [2019-03-28 12:17:39,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:39,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:39,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:39,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.80/10.60 [2019-03-28 12:17:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.80/10.60 [2019-03-28 12:17:39,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.80/10.60 [2019-03-28 12:17:39,287 INFO L82 PathProgramCache]: Analyzing trace with hash 53848, now seen corresponding path program 1 times 16.80/10.60 [2019-03-28 12:17:39,287 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.80/10.60 [2019-03-28 12:17:39,287 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.80/10.60 [2019-03-28 12:17:39,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:39,288 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:39,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.80/10.60 [2019-03-28 12:17:39,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.80/10.60 [2019-03-28 12:17:39,308 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 16.80/10.60 [2019-03-28 12:17:39,308 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 16.80/10.60 [2019-03-28 12:17:39,333 INFO L216 LassoAnalysis]: Preferences: 16.80/10.60 [2019-03-28 12:17:39,333 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 16.80/10.60 [2019-03-28 12:17:39,333 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 16.80/10.60 [2019-03-28 12:17:39,333 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 16.80/10.60 [2019-03-28 12:17:39,333 INFO L127 ssoRankerPreferences]: Use exernal solver: true 16.80/10.60 [2019-03-28 12:17:39,333 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:39,334 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 16.80/10.60 [2019-03-28 12:17:39,334 INFO L130 ssoRankerPreferences]: Path of dumped script: 16.80/10.60 [2019-03-28 12:17:39,334 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 16.80/10.60 [2019-03-28 12:17:39,334 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 16.80/10.60 [2019-03-28 12:17:39,335 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 16.80/10.60 [2019-03-28 12:17:39,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:39,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:39,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:39,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:39,388 INFO L300 LassoAnalysis]: Preprocessing complete. 16.80/10.60 [2019-03-28 12:17:39,389 INFO L412 LassoAnalysis]: Checking for nontermination... 16.80/10.60 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.80/10.60 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.80/10.60 Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:39,394 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.80/10.60 [2019-03-28 12:17:39,394 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.80/10.60 [2019-03-28 12:17:39,398 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.80/10.60 [2019-03-28 12:17:39,398 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~post0=0} Honda state: {ULTIMATE.start_f_#t~post0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 16.80/10.60 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.80/10.60 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.80/10.60 Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:39,427 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.80/10.60 [2019-03-28 12:17:39,427 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.80/10.60 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.80/10.60 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.80/10.60 [2019-03-28 12:17:39,458 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 16.80/10.60 [2019-03-28 12:17:39,458 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.80/10.60 Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:39,484 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.80/10.60 [2019-03-28 12:17:39,484 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~y=0, ULTIMATE.start_f_~x=0} Honda state: {ULTIMATE.start_f_~y=0, ULTIMATE.start_f_~x=0} Generalized eigenvectors: [{ULTIMATE.start_f_~y=4, ULTIMATE.start_f_~x=5}, {ULTIMATE.start_f_~y=4, ULTIMATE.start_f_~x=4}, {ULTIMATE.start_f_~y=-8, ULTIMATE.start_f_~x=-8}] Lambdas: [1, 3, 1] Nus: [0, 1] 16.80/10.60 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.80/10.60 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.80/10.60 Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:39,512 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.80/10.60 [2019-03-28 12:17:39,512 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.80/10.60 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.80/10.60 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.80/10.60 Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:39,544 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 16.80/10.60 [2019-03-28 12:17:39,544 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.80/10.60 [2019-03-28 12:17:39,578 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 16.80/10.60 [2019-03-28 12:17:39,579 INFO L216 LassoAnalysis]: Preferences: 16.80/10.60 [2019-03-28 12:17:39,579 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 16.80/10.60 [2019-03-28 12:17:39,579 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 16.80/10.60 [2019-03-28 12:17:39,579 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 16.80/10.60 [2019-03-28 12:17:39,580 INFO L127 ssoRankerPreferences]: Use exernal solver: false 16.80/10.60 [2019-03-28 12:17:39,580 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:39,580 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 16.80/10.60 [2019-03-28 12:17:39,580 INFO L130 ssoRankerPreferences]: Path of dumped script: 16.80/10.60 [2019-03-28 12:17:39,581 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 16.80/10.60 [2019-03-28 12:17:39,581 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 16.80/10.60 [2019-03-28 12:17:39,581 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 16.80/10.60 [2019-03-28 12:17:39,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:39,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:39,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:39,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:39,638 INFO L300 LassoAnalysis]: Preprocessing complete. 16.80/10.60 [2019-03-28 12:17:39,639 INFO L497 LassoAnalysis]: Using template 'affine'. 16.80/10.60 [2019-03-28 12:17:39,639 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.80/10.60 Termination analysis: LINEAR_WITH_GUESSES 16.80/10.60 Number of strict supporting invariants: 0 16.80/10.60 Number of non-strict supporting invariants: 1 16.80/10.60 Consider only non-deceasing supporting invariants: true 16.80/10.60 Simplify termination arguments: true 16.80/10.60 Simplify supporting invariants: trueOverapproximate stem: false 16.80/10.60 [2019-03-28 12:17:39,640 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.80/10.60 [2019-03-28 12:17:39,640 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 16.80/10.60 [2019-03-28 12:17:39,640 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.80/10.60 [2019-03-28 12:17:39,640 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.80/10.60 [2019-03-28 12:17:39,641 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.80/10.60 [2019-03-28 12:17:39,641 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 16.80/10.60 [2019-03-28 12:17:39,641 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 16.80/10.60 [2019-03-28 12:17:39,642 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 16.80/10.60 [2019-03-28 12:17:39,643 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.80/10.60 Termination analysis: LINEAR_WITH_GUESSES 16.80/10.60 Number of strict supporting invariants: 0 16.80/10.60 Number of non-strict supporting invariants: 1 16.80/10.60 Consider only non-deceasing supporting invariants: true 16.80/10.60 Simplify termination arguments: true 16.80/10.60 Simplify supporting invariants: trueOverapproximate stem: false 16.80/10.60 [2019-03-28 12:17:39,643 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.80/10.60 [2019-03-28 12:17:39,643 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 16.80/10.60 [2019-03-28 12:17:39,644 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.80/10.60 [2019-03-28 12:17:39,644 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.80/10.60 [2019-03-28 12:17:39,644 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.80/10.60 [2019-03-28 12:17:39,645 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 16.80/10.60 [2019-03-28 12:17:39,645 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 16.80/10.60 [2019-03-28 12:17:39,649 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 16.80/10.60 [2019-03-28 12:17:39,649 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.80/10.60 Termination analysis: LINEAR_WITH_GUESSES 16.80/10.60 Number of strict supporting invariants: 0 16.80/10.60 Number of non-strict supporting invariants: 1 16.80/10.60 Consider only non-deceasing supporting invariants: true 16.80/10.60 Simplify termination arguments: true 16.80/10.60 Simplify supporting invariants: trueOverapproximate stem: false 16.80/10.60 [2019-03-28 12:17:39,650 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.80/10.60 [2019-03-28 12:17:39,650 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 16.80/10.60 [2019-03-28 12:17:39,650 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.80/10.60 [2019-03-28 12:17:39,650 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.80/10.60 [2019-03-28 12:17:39,651 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.80/10.60 [2019-03-28 12:17:39,651 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 16.80/10.60 [2019-03-28 12:17:39,651 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 16.80/10.60 [2019-03-28 12:17:39,655 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 16.80/10.60 [2019-03-28 12:17:39,657 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 16.80/10.60 [2019-03-28 12:17:39,657 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. 16.80/10.60 [2019-03-28 12:17:39,658 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 16.80/10.60 [2019-03-28 12:17:39,658 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 16.80/10.60 [2019-03-28 12:17:39,658 INFO L518 LassoAnalysis]: Proved termination. 16.80/10.60 [2019-03-28 12:17:39,658 INFO L520 LassoAnalysis]: Termination argument consisting of: 16.80/10.60 Ranking function f(ULTIMATE.start_f_~flag~0) = -1*ULTIMATE.start_f_~flag~0 16.80/10.60 Supporting invariants [] 16.80/10.60 [2019-03-28 12:17:39,658 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 16.80/10.60 [2019-03-28 12:17:39,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.80/10.60 [2019-03-28 12:17:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.80/10.60 [2019-03-28 12:17:39,679 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core 16.80/10.60 [2019-03-28 12:17:39,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... 16.80/10.60 [2019-03-28 12:17:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.80/10.60 [2019-03-28 12:17:39,685 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core 16.80/10.60 [2019-03-28 12:17:39,686 INFO L279 TraceCheckSpWp]: Computing forward predicates... 16.80/10.60 [2019-03-28 12:17:39,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.80/10.60 [2019-03-28 12:17:39,686 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization 16.80/10.60 [2019-03-28 12:17:39,686 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates 16.80/10.60 [2019-03-28 12:17:39,687 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 13 transitions. cyclomatic complexity: 10 Second operand 2 states. 16.80/10.60 [2019-03-28 12:17:39,708 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 13 transitions. cyclomatic complexity: 10. Second operand 2 states. Result 10 states and 26 transitions. Complement of second has 3 states. 16.80/10.60 [2019-03-28 12:17:39,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states 16.80/10.60 [2019-03-28 12:17:39,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. 16.80/10.60 [2019-03-28 12:17:39,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 8 transitions. 16.80/10.60 [2019-03-28 12:17:39,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 2 letters. Loop has 1 letters. 16.80/10.60 [2019-03-28 12:17:39,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.80/10.60 [2019-03-28 12:17:39,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 3 letters. Loop has 1 letters. 16.80/10.60 [2019-03-28 12:17:39,710 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.80/10.60 [2019-03-28 12:17:39,710 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. 16.80/10.60 [2019-03-28 12:17:39,710 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.80/10.60 [2019-03-28 12:17:39,711 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 26 transitions. 16.80/10.60 [2019-03-28 12:17:39,712 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 16.80/10.60 [2019-03-28 12:17:39,713 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 26 transitions. 16.80/10.60 [2019-03-28 12:17:39,713 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 16.80/10.60 [2019-03-28 12:17:39,713 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 16.80/10.60 [2019-03-28 12:17:39,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 26 transitions. 16.80/10.60 [2019-03-28 12:17:39,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 16.80/10.60 [2019-03-28 12:17:39,714 INFO L706 BuchiCegarLoop]: Abstraction has 10 states and 26 transitions. 16.80/10.60 [2019-03-28 12:17:39,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 26 transitions. 16.80/10.60 [2019-03-28 12:17:39,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. 16.80/10.60 [2019-03-28 12:17:39,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. 16.80/10.60 [2019-03-28 12:17:39,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 20 transitions. 16.80/10.60 [2019-03-28 12:17:39,716 INFO L729 BuchiCegarLoop]: Abstraction has 8 states and 20 transitions. 16.80/10.60 [2019-03-28 12:17:39,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. 16.80/10.60 [2019-03-28 12:17:39,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 16.80/10.60 [2019-03-28 12:17:39,716 INFO L87 Difference]: Start difference. First operand 8 states and 20 transitions. Second operand 3 states. 16.80/10.60 [2019-03-28 12:17:39,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 16.80/10.60 [2019-03-28 12:17:39,729 INFO L93 Difference]: Finished difference Result 6 states and 11 transitions. 16.80/10.60 [2019-03-28 12:17:39,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 16.80/10.60 [2019-03-28 12:17:39,731 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 11 transitions. 16.80/10.60 [2019-03-28 12:17:39,731 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 16.80/10.60 [2019-03-28 12:17:39,731 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 11 transitions. 16.80/10.60 [2019-03-28 12:17:39,732 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 16.80/10.60 [2019-03-28 12:17:39,732 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 16.80/10.60 [2019-03-28 12:17:39,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 11 transitions. 16.80/10.60 [2019-03-28 12:17:39,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 16.80/10.60 [2019-03-28 12:17:39,732 INFO L706 BuchiCegarLoop]: Abstraction has 6 states and 11 transitions. 16.80/10.60 [2019-03-28 12:17:39,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 11 transitions. 16.80/10.60 [2019-03-28 12:17:39,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. 16.80/10.60 [2019-03-28 12:17:39,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. 16.80/10.60 [2019-03-28 12:17:39,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. 16.80/10.60 [2019-03-28 12:17:39,734 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 10 transitions. 16.80/10.60 [2019-03-28 12:17:39,734 INFO L609 BuchiCegarLoop]: Abstraction has 5 states and 10 transitions. 16.80/10.60 [2019-03-28 12:17:39,734 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ 16.80/10.60 [2019-03-28 12:17:39,734 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 10 transitions. 16.80/10.60 [2019-03-28 12:17:39,735 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 16.80/10.60 [2019-03-28 12:17:39,735 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 16.80/10.60 [2019-03-28 12:17:39,735 INFO L119 BuchiIsEmpty]: Starting construction of run 16.80/10.60 [2019-03-28 12:17:39,735 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 16.80/10.60 [2019-03-28 12:17:39,735 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 16.80/10.60 [2019-03-28 12:17:39,736 INFO L794 eck$LassoCheckResult]: Stem: 134#ULTIMATE.startENTRY [24] ULTIMATE.startENTRY-->L7-2: Formula: (and (= |v_ULTIMATE.start_f_#in~y_1| |v_ULTIMATE.start_main_#t~nondet2_2|) (= v_ULTIMATE.start_f_~y_1 |v_ULTIMATE.start_f_#in~y_1|) (= v_ULTIMATE.start_f_~c~0_1 0) (= v_ULTIMATE.start_f_~x_1 |v_ULTIMATE.start_f_#in~x_1|) (= |v_ULTIMATE.start_f_#in~x_1| |v_ULTIMATE.start_main_#t~nondet1_2|) (= v_ULTIMATE.start_f_~flag~0_1 1)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_2|, ULTIMATE.start_f_~flag~0=v_ULTIMATE.start_f_~flag~0_1, ULTIMATE.start_f_~y=v_ULTIMATE.start_f_~y_1, ULTIMATE.start_f_~x=v_ULTIMATE.start_f_~x_1, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|, ULTIMATE.start_f_~c~0=v_ULTIMATE.start_f_~c~0_1, ULTIMATE.start_f_#res=|v_ULTIMATE.start_f_#res_2|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_f_#in~y=|v_ULTIMATE.start_f_#in~y_1|, ULTIMATE.start_f_#in~x=|v_ULTIMATE.start_f_#in~x_1|, ULTIMATE.start_f_#t~post0=|v_ULTIMATE.start_f_#t~post0_1|, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_3|} AuxVars[] AssignedVars[ULTIMATE.start_f_#res, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_f_~flag~0, ULTIMATE.start_f_~y, ULTIMATE.start_f_~x, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_f_#in~y, ULTIMATE.start_f_#in~x, ULTIMATE.start_f_#t~post0, ULTIMATE.start_f_~c~0, ULTIMATE.start_main_#t~ret3] 135#L7-2 [31] L7-2-->L7-2: Formula: (and (= v_ULTIMATE.start_f_~c~0_3 (+ v_ULTIMATE.start_f_~c~0_4 1)) (= v_ULTIMATE.start_f_~flag~0_4 0) (= (+ v_ULTIMATE.start_f_~x_4 1) v_ULTIMATE.start_f_~x_3) (>= v_ULTIMATE.start_f_~x_4 v_ULTIMATE.start_f_~y_3) (> v_ULTIMATE.start_f_~flag~0_5 0)) InVars {ULTIMATE.start_f_~flag~0=v_ULTIMATE.start_f_~flag~0_5, ULTIMATE.start_f_~y=v_ULTIMATE.start_f_~y_3, ULTIMATE.start_f_~c~0=v_ULTIMATE.start_f_~c~0_4, ULTIMATE.start_f_~x=v_ULTIMATE.start_f_~x_4} OutVars{ULTIMATE.start_f_#t~post0=|v_ULTIMATE.start_f_#t~post0_2|, ULTIMATE.start_f_~y=v_ULTIMATE.start_f_~y_3, ULTIMATE.start_f_~flag~0=v_ULTIMATE.start_f_~flag~0_4, ULTIMATE.start_f_~c~0=v_ULTIMATE.start_f_~c~0_3, ULTIMATE.start_f_~x=v_ULTIMATE.start_f_~x_3} AuxVars[] AssignedVars[ULTIMATE.start_f_~flag~0, ULTIMATE.start_f_~x, ULTIMATE.start_f_#t~post0, ULTIMATE.start_f_~c~0] 131#L7-2 16.80/10.60 [2019-03-28 12:17:39,736 INFO L796 eck$LassoCheckResult]: Loop: 131#L7-2 [31] L7-2-->L7-2: Formula: (and (= v_ULTIMATE.start_f_~c~0_3 (+ v_ULTIMATE.start_f_~c~0_4 1)) (= v_ULTIMATE.start_f_~flag~0_4 0) (= (+ v_ULTIMATE.start_f_~x_4 1) v_ULTIMATE.start_f_~x_3) (>= v_ULTIMATE.start_f_~x_4 v_ULTIMATE.start_f_~y_3) (> v_ULTIMATE.start_f_~flag~0_5 0)) InVars {ULTIMATE.start_f_~flag~0=v_ULTIMATE.start_f_~flag~0_5, ULTIMATE.start_f_~y=v_ULTIMATE.start_f_~y_3, ULTIMATE.start_f_~c~0=v_ULTIMATE.start_f_~c~0_4, ULTIMATE.start_f_~x=v_ULTIMATE.start_f_~x_4} OutVars{ULTIMATE.start_f_#t~post0=|v_ULTIMATE.start_f_#t~post0_2|, ULTIMATE.start_f_~y=v_ULTIMATE.start_f_~y_3, ULTIMATE.start_f_~flag~0=v_ULTIMATE.start_f_~flag~0_4, ULTIMATE.start_f_~c~0=v_ULTIMATE.start_f_~c~0_3, ULTIMATE.start_f_~x=v_ULTIMATE.start_f_~x_3} AuxVars[] AssignedVars[ULTIMATE.start_f_~flag~0, ULTIMATE.start_f_~x, ULTIMATE.start_f_#t~post0, ULTIMATE.start_f_~c~0] 131#L7-2 16.80/10.60 [2019-03-28 12:17:39,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.80/10.60 [2019-03-28 12:17:39,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1736, now seen corresponding path program 2 times 16.80/10.60 [2019-03-28 12:17:39,736 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.80/10.60 [2019-03-28 12:17:39,737 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.80/10.60 [2019-03-28 12:17:39,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:39,738 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:39,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.80/10.60 [2019-03-28 12:17:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.80/10.60 [2019-03-28 12:17:39,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.80/10.60 [2019-03-28 12:17:39,746 INFO L82 PathProgramCache]: Analyzing trace with hash 62, now seen corresponding path program 1 times 16.80/10.60 [2019-03-28 12:17:39,746 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.80/10.60 [2019-03-28 12:17:39,747 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.80/10.60 [2019-03-28 12:17:39,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:39,748 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:39,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.80/10.60 [2019-03-28 12:17:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.80/10.60 [2019-03-28 12:17:39,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.80/10.60 [2019-03-28 12:17:39,753 INFO L82 PathProgramCache]: Analyzing trace with hash 53847, now seen corresponding path program 3 times 16.80/10.60 [2019-03-28 12:17:39,753 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.80/10.60 [2019-03-28 12:17:39,753 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.80/10.60 [2019-03-28 12:17:39,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:39,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:39,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.80/10.60 [2019-03-28 12:17:39,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.80/10.60 [2019-03-28 12:17:39,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.80/10.60 [2019-03-28 12:17:39,768 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 16.80/10.60 [2019-03-28 12:17:39,768 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 16.80/10.60 [2019-03-28 12:17:39,788 INFO L216 LassoAnalysis]: Preferences: 16.80/10.60 [2019-03-28 12:17:39,789 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 16.80/10.60 [2019-03-28 12:17:39,789 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 16.80/10.60 [2019-03-28 12:17:39,789 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 16.80/10.60 [2019-03-28 12:17:39,789 INFO L127 ssoRankerPreferences]: Use exernal solver: true 16.80/10.60 [2019-03-28 12:17:39,789 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:39,789 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 16.80/10.60 [2019-03-28 12:17:39,789 INFO L130 ssoRankerPreferences]: Path of dumped script: 16.80/10.60 [2019-03-28 12:17:39,790 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop 16.80/10.60 [2019-03-28 12:17:39,790 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 16.80/10.60 [2019-03-28 12:17:39,790 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 16.80/10.60 [2019-03-28 12:17:39,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:39,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:39,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:39,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:39,851 INFO L300 LassoAnalysis]: Preprocessing complete. 16.80/10.60 [2019-03-28 12:17:39,851 INFO L412 LassoAnalysis]: Checking for nontermination... 16.80/10.60 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.80/10.60 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.80/10.60 Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:39,890 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.80/10.60 [2019-03-28 12:17:39,890 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.80/10.60 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.80/10.60 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.80/10.60 Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:39,921 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 16.80/10.60 [2019-03-28 12:17:39,921 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.80/10.60 [2019-03-28 12:17:39,946 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.80/10.60 [2019-03-28 12:17:39,946 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~y=0, ULTIMATE.start_f_~x=0} Honda state: {ULTIMATE.start_f_~y=0, ULTIMATE.start_f_~x=0} Generalized eigenvectors: [{ULTIMATE.start_f_~y=7, ULTIMATE.start_f_~x=7}, {ULTIMATE.start_f_~y=-5, ULTIMATE.start_f_~x=-5}, {ULTIMATE.start_f_~y=-2, ULTIMATE.start_f_~x=-1}] Lambdas: [1, 1, 1] Nus: [0, 0] 16.80/10.60 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.80/10.60 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.80/10.60 Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:39,974 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.80/10.60 [2019-03-28 12:17:39,974 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.80/10.60 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 16.80/10.60 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.80/10.60 Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:40,005 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 16.80/10.60 [2019-03-28 12:17:40,005 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.80/10.60 [2019-03-28 12:17:40,036 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 16.80/10.60 [2019-03-28 12:17:40,037 INFO L216 LassoAnalysis]: Preferences: 16.80/10.60 [2019-03-28 12:17:40,037 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 16.80/10.60 [2019-03-28 12:17:40,038 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 16.80/10.60 [2019-03-28 12:17:40,038 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 16.80/10.60 [2019-03-28 12:17:40,038 INFO L127 ssoRankerPreferences]: Use exernal solver: false 16.80/10.60 [2019-03-28 12:17:40,038 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 16.80/10.60 [2019-03-28 12:17:40,038 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 16.80/10.60 [2019-03-28 12:17:40,038 INFO L130 ssoRankerPreferences]: Path of dumped script: 16.80/10.60 [2019-03-28 12:17:40,038 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop 16.80/10.60 [2019-03-28 12:17:40,038 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 16.80/10.60 [2019-03-28 12:17:40,039 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 16.80/10.60 [2019-03-28 12:17:40,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:40,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:40,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:40,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.80/10.60 [2019-03-28 12:17:40,088 INFO L300 LassoAnalysis]: Preprocessing complete. 16.80/10.60 [2019-03-28 12:17:40,089 INFO L497 LassoAnalysis]: Using template 'affine'. 16.80/10.60 [2019-03-28 12:17:40,089 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.80/10.60 Termination analysis: LINEAR_WITH_GUESSES 16.80/10.60 Number of strict supporting invariants: 0 16.80/10.60 Number of non-strict supporting invariants: 1 16.80/10.60 Consider only non-deceasing supporting invariants: true 16.80/10.60 Simplify termination arguments: true 16.80/10.60 Simplify supporting invariants: trueOverapproximate stem: false 16.80/10.60 [2019-03-28 12:17:40,090 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.80/10.60 [2019-03-28 12:17:40,090 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 16.80/10.60 [2019-03-28 12:17:40,090 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.80/10.60 [2019-03-28 12:17:40,090 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.80/10.60 [2019-03-28 12:17:40,090 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.80/10.60 [2019-03-28 12:17:40,091 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 16.80/10.60 [2019-03-28 12:17:40,091 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 16.80/10.60 [2019-03-28 12:17:40,095 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 16.80/10.60 [2019-03-28 12:17:40,095 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.80/10.60 Termination analysis: LINEAR_WITH_GUESSES 16.80/10.60 Number of strict supporting invariants: 0 16.80/10.60 Number of non-strict supporting invariants: 1 16.80/10.60 Consider only non-deceasing supporting invariants: true 16.80/10.60 Simplify termination arguments: true 16.80/10.60 Simplify supporting invariants: trueOverapproximate stem: false 16.80/10.60 [2019-03-28 12:17:40,096 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.80/10.60 [2019-03-28 12:17:40,096 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 16.80/10.60 [2019-03-28 12:17:40,096 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.80/10.60 [2019-03-28 12:17:40,096 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.80/10.60 [2019-03-28 12:17:40,096 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.80/10.60 [2019-03-28 12:17:40,097 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 16.80/10.60 [2019-03-28 12:17:40,097 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 16.80/10.60 [2019-03-28 12:17:40,100 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 16.80/10.60 [2019-03-28 12:17:40,102 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 16.80/10.60 [2019-03-28 12:17:40,102 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. 16.80/10.60 [2019-03-28 12:17:40,102 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 16.80/10.60 [2019-03-28 12:17:40,102 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 16.80/10.60 [2019-03-28 12:17:40,103 INFO L518 LassoAnalysis]: Proved termination. 16.80/10.60 [2019-03-28 12:17:40,103 INFO L520 LassoAnalysis]: Termination argument consisting of: 16.80/10.60 Ranking function f(ULTIMATE.start_f_~flag~0) = 1*ULTIMATE.start_f_~flag~0 16.80/10.60 Supporting invariants [] 16.80/10.60 [2019-03-28 12:17:40,103 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 16.80/10.60 [2019-03-28 12:17:40,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.80/10.60 [2019-03-28 12:17:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.80/10.60 [2019-03-28 12:17:40,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core 16.80/10.60 [2019-03-28 12:17:40,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... 16.80/10.60 [2019-03-28 12:17:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.80/10.60 [2019-03-28 12:17:40,135 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core 16.80/10.60 [2019-03-28 12:17:40,135 INFO L279 TraceCheckSpWp]: Computing forward predicates... 16.80/10.60 [2019-03-28 12:17:40,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.80/10.60 [2019-03-28 12:17:40,135 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization 16.80/10.60 [2019-03-28 12:17:40,136 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates 16.80/10.60 [2019-03-28 12:17:40,136 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 10 transitions. cyclomatic complexity: 7 Second operand 2 states. 16.80/10.60 [2019-03-28 12:17:40,148 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 10 transitions. cyclomatic complexity: 7. Second operand 2 states. Result 8 states and 16 transitions. Complement of second has 4 states. 16.80/10.60 [2019-03-28 12:17:40,149 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 16.80/10.60 [2019-03-28 12:17:40,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. 16.80/10.60 [2019-03-28 12:17:40,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. 16.80/10.60 [2019-03-28 12:17:40,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 1 letters. 16.80/10.60 [2019-03-28 12:17:40,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.80/10.60 [2019-03-28 12:17:40,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 1 letters. 16.80/10.60 [2019-03-28 12:17:40,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.80/10.60 [2019-03-28 12:17:40,151 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. 16.80/10.60 [2019-03-28 12:17:40,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.80/10.60 [2019-03-28 12:17:40,152 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 16 transitions. 16.80/10.60 [2019-03-28 12:17:40,153 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 16.80/10.60 [2019-03-28 12:17:40,153 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. 16.80/10.60 [2019-03-28 12:17:40,153 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 16.80/10.60 [2019-03-28 12:17:40,153 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 16.80/10.60 [2019-03-28 12:17:40,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. 16.80/10.60 [2019-03-28 12:17:40,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 16.80/10.60 [2019-03-28 12:17:40,153 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 16.80/10.60 [2019-03-28 12:17:40,154 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 16.80/10.60 [2019-03-28 12:17:40,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. 16.80/10.60 [2019-03-28 12:17:40,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 16.80/10.60 [2019-03-28 12:17:40,154 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. 16.80/10.60 [2019-03-28 12:17:40,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 16.80/10.60 [2019-03-28 12:17:40,154 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. 16.80/10.60 [2019-03-28 12:17:40,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 16.80/10.60 [2019-03-28 12:17:40,155 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. 16.80/10.60 [2019-03-28 12:17:40,156 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 16.80/10.60 [2019-03-28 12:17:40,156 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. 16.80/10.60 [2019-03-28 12:17:40,156 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 16.80/10.60 [2019-03-28 12:17:40,156 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 16.80/10.60 [2019-03-28 12:17:40,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. 16.80/10.60 [2019-03-28 12:17:40,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 16.80/10.60 [2019-03-28 12:17:40,156 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 16.80/10.60 [2019-03-28 12:17:40,156 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 16.80/10.60 [2019-03-28 12:17:40,156 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 16.80/10.60 [2019-03-28 12:17:40,157 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ 16.80/10.60 [2019-03-28 12:17:40,157 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. 16.80/10.60 [2019-03-28 12:17:40,157 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 16.80/10.60 [2019-03-28 12:17:40,157 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true 16.80/10.60 [2019-03-28 12:17:40,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 12:17:40 BasicIcfg 16.80/10.60 [2019-03-28 12:17:40,163 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 16.80/10.60 [2019-03-28 12:17:40,164 INFO L168 Benchmark]: Toolchain (without parser) took 3318.80 ms. Allocated memory was 649.6 MB in the beginning and 740.3 MB in the end (delta: 90.7 MB). Free memory was 559.8 MB in the beginning and 653.6 MB in the end (delta: -93.8 MB). There was no memory consumed. Max. memory is 50.3 GB. 16.80/10.60 [2019-03-28 12:17:40,165 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 580.0 MB. There was no memory consumed. Max. memory is 50.3 GB. 16.80/10.60 [2019-03-28 12:17:40,166 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.45 ms. Allocated memory is still 649.6 MB. Free memory was 559.8 MB in the beginning and 548.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 50.3 GB. 16.80/10.60 [2019-03-28 12:17:40,166 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.20 ms. Allocated memory is still 649.6 MB. Free memory was 548.8 MB in the beginning and 615.9 MB in the end (delta: -67.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 50.3 GB. 16.80/10.60 [2019-03-28 12:17:40,167 INFO L168 Benchmark]: Boogie Preprocessor took 19.91 ms. Allocated memory is still 649.6 MB. Free memory was 615.9 MB in the beginning and 614.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 50.3 GB. 16.80/10.60 [2019-03-28 12:17:40,167 INFO L168 Benchmark]: RCFGBuilder took 219.62 ms. Allocated memory is still 649.6 MB. Free memory was 612.8 MB in the beginning and 599.7 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 50.3 GB. 16.80/10.60 [2019-03-28 12:17:40,168 INFO L168 Benchmark]: BlockEncodingV2 took 84.92 ms. Allocated memory is still 649.6 MB. Free memory was 599.7 MB in the beginning and 594.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 16.80/10.60 [2019-03-28 12:17:40,168 INFO L168 Benchmark]: TraceAbstraction took 167.22 ms. Allocated memory is still 649.6 MB. Free memory was 594.3 MB in the beginning and 586.2 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. 16.80/10.60 [2019-03-28 12:17:40,169 INFO L168 Benchmark]: BuchiAutomizer took 2504.21 ms. Allocated memory was 649.6 MB in the beginning and 740.3 MB in the end (delta: 90.7 MB). Free memory was 586.2 MB in the beginning and 653.6 MB in the end (delta: -67.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 50.3 GB. 16.80/10.60 [2019-03-28 12:17:40,173 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 16.80/10.60 --- Results --- 16.80/10.60 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 16.80/10.60 - StatisticsResult: Initial Icfg 16.80/10.60 7 locations, 8 edges 16.80/10.60 - StatisticsResult: Encoded RCFG 16.80/10.60 2 locations, 5 edges 16.80/10.60 * Results from de.uni_freiburg.informatik.ultimate.core: 16.80/10.60 - StatisticsResult: Toolchain Benchmarks 16.80/10.60 Benchmark results are: 16.80/10.60 * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 580.0 MB. There was no memory consumed. Max. memory is 50.3 GB. 16.80/10.60 * CACSL2BoogieTranslator took 224.45 ms. Allocated memory is still 649.6 MB. Free memory was 559.8 MB in the beginning and 548.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 50.3 GB. 16.80/10.60 * Boogie Procedure Inliner took 93.20 ms. Allocated memory is still 649.6 MB. Free memory was 548.8 MB in the beginning and 615.9 MB in the end (delta: -67.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 50.3 GB. 16.80/10.60 * Boogie Preprocessor took 19.91 ms. Allocated memory is still 649.6 MB. Free memory was 615.9 MB in the beginning and 614.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 50.3 GB. 16.80/10.60 * RCFGBuilder took 219.62 ms. Allocated memory is still 649.6 MB. Free memory was 612.8 MB in the beginning and 599.7 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 50.3 GB. 16.80/10.60 * BlockEncodingV2 took 84.92 ms. Allocated memory is still 649.6 MB. Free memory was 599.7 MB in the beginning and 594.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 16.80/10.60 * TraceAbstraction took 167.22 ms. Allocated memory is still 649.6 MB. Free memory was 594.3 MB in the beginning and 586.2 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. 16.80/10.60 * BuchiAutomizer took 2504.21 ms. Allocated memory was 649.6 MB in the beginning and 740.3 MB in the end (delta: 90.7 MB). Free memory was 586.2 MB in the beginning and 653.6 MB in the end (delta: -67.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 50.3 GB. 16.80/10.60 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 16.80/10.60 - AllSpecificationsHoldResult: All specifications hold 16.80/10.60 We were not able to verify any specifiation because the program does not contain any specification. 16.80/10.60 - InvariantResult [Line: 7]: Loop Invariant 16.80/10.60 Derived loop invariant: 1 16.80/10.60 - StatisticsResult: Ultimate Automizer benchmark data 16.80/10.60 CFG has 1 procedures, 2 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available 16.80/10.60 - StatisticsResult: Constructed decomposition of program 16.80/10.60 Your program was decomposed into 7 terminating modules (3 trivial, 0 deterministic, 4 nondeterministic). One nondeterministic module has affine ranking function -1 * flag and consists of 2 locations. One nondeterministic module has affine ranking function y + -1 * x and consists of 3 locations. One nondeterministic module has affine ranking function -1 * flag and consists of 2 locations. One nondeterministic module has affine ranking function flag and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 3 locations. 16.80/10.60 - StatisticsResult: Timing statistics 16.80/10.60 BüchiAutomizer plugin needed 2.4s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 2. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 18 SDslu, 0 SDs, 0 SdLazy, 47 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT3 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf100 lsp47 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s 16.80/10.60 - TerminationAnalysisResult: Termination proven 16.80/10.60 Buchi Automizer proved that your program is terminating 16.80/10.60 RESULT: Ultimate proved your program to be correct! 16.80/10.60 !SESSION 2019-03-28 12:17:31.720 ----------------------------------------------- 16.80/10.60 eclipse.buildId=unknown 16.80/10.60 java.version=1.8.0_181 16.80/10.60 java.vendor=Oracle Corporation 16.80/10.60 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 16.80/10.60 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c 16.80/10.60 Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c 16.80/10.60 16.80/10.60 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 12:17:40.406 16.80/10.60 !MESSAGE The workspace will exit with unsaved changes in this session. 16.80/10.60 Received shutdown request... 16.80/10.60 Ultimate: 16.80/10.60 GTK+ Version Check 16.80/10.60 EOF