17.92/7.90 YES 17.92/7.90 17.92/7.90 Ultimate: Cannot open display: 17.92/7.90 This is Ultimate 0.1.24-8dc7c08-m 17.92/7.90 [2019-03-28 22:42:15,521 INFO L170 SettingsManager]: Resetting all preferences to default values... 17.92/7.90 [2019-03-28 22:42:15,523 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 17.92/7.90 [2019-03-28 22:42:15,535 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 17.92/7.90 [2019-03-28 22:42:15,535 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 17.92/7.90 [2019-03-28 22:42:15,536 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 17.92/7.90 [2019-03-28 22:42:15,537 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 17.92/7.90 [2019-03-28 22:42:15,539 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 17.92/7.90 [2019-03-28 22:42:15,540 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 17.92/7.90 [2019-03-28 22:42:15,541 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 17.92/7.90 [2019-03-28 22:42:15,542 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 17.92/7.90 [2019-03-28 22:42:15,542 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 17.92/7.90 [2019-03-28 22:42:15,543 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 17.92/7.90 [2019-03-28 22:42:15,544 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 17.92/7.90 [2019-03-28 22:42:15,545 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 17.92/7.90 [2019-03-28 22:42:15,546 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 17.92/7.90 [2019-03-28 22:42:15,547 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 17.92/7.90 [2019-03-28 22:42:15,548 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 17.92/7.90 [2019-03-28 22:42:15,550 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 17.92/7.90 [2019-03-28 22:42:15,552 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 17.92/7.90 [2019-03-28 22:42:15,553 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 17.92/7.90 [2019-03-28 22:42:15,554 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 17.92/7.90 [2019-03-28 22:42:15,556 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 17.92/7.90 [2019-03-28 22:42:15,556 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 17.92/7.90 [2019-03-28 22:42:15,557 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 17.92/7.90 [2019-03-28 22:42:15,558 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 17.92/7.90 [2019-03-28 22:42:15,558 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 17.92/7.90 [2019-03-28 22:42:15,559 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 17.92/7.90 [2019-03-28 22:42:15,559 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 17.92/7.90 [2019-03-28 22:42:15,560 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 17.92/7.90 [2019-03-28 22:42:15,561 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 17.92/7.90 [2019-03-28 22:42:15,561 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 17.92/7.90 [2019-03-28 22:42:15,562 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 17.92/7.90 [2019-03-28 22:42:15,562 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 17.92/7.90 [2019-03-28 22:42:15,563 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 17.92/7.90 [2019-03-28 22:42:15,563 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 17.92/7.90 [2019-03-28 22:42:15,563 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 17.92/7.90 [2019-03-28 22:42:15,564 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 17.92/7.90 [2019-03-28 22:42:15,565 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 17.92/7.90 [2019-03-28 22:42:15,565 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf 17.92/7.90 [2019-03-28 22:42:15,580 INFO L110 SettingsManager]: Loading preferences was successful 17.92/7.90 [2019-03-28 22:42:15,581 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 17.92/7.90 [2019-03-28 22:42:15,582 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 17.92/7.90 [2019-03-28 22:42:15,582 INFO L133 SettingsManager]: * Rewrite not-equals=true 17.92/7.90 [2019-03-28 22:42:15,582 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 17.92/7.90 [2019-03-28 22:42:15,582 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 17.92/7.90 [2019-03-28 22:42:15,582 INFO L133 SettingsManager]: * Use SBE=true 17.92/7.90 [2019-03-28 22:42:15,583 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 17.92/7.90 [2019-03-28 22:42:15,583 INFO L133 SettingsManager]: * Use old map elimination=false 17.92/7.90 [2019-03-28 22:42:15,583 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 17.92/7.90 [2019-03-28 22:42:15,583 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 17.92/7.90 [2019-03-28 22:42:15,583 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 17.92/7.90 [2019-03-28 22:42:15,584 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 17.92/7.90 [2019-03-28 22:42:15,584 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 17.92/7.90 [2019-03-28 22:42:15,584 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.92/7.90 [2019-03-28 22:42:15,584 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 17.92/7.90 [2019-03-28 22:42:15,584 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 17.92/7.90 [2019-03-28 22:42:15,584 INFO L133 SettingsManager]: * Check division by zero=IGNORE 17.92/7.90 [2019-03-28 22:42:15,585 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 17.92/7.90 [2019-03-28 22:42:15,585 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 17.92/7.90 [2019-03-28 22:42:15,585 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 17.92/7.90 [2019-03-28 22:42:15,585 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 17.92/7.90 [2019-03-28 22:42:15,585 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 17.92/7.90 [2019-03-28 22:42:15,586 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 17.92/7.90 [2019-03-28 22:42:15,586 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 17.92/7.90 [2019-03-28 22:42:15,586 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 17.92/7.90 [2019-03-28 22:42:15,586 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 17.92/7.90 [2019-03-28 22:42:15,586 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 17.92/7.90 [2019-03-28 22:42:15,586 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 17.92/7.90 [2019-03-28 22:42:15,612 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 17.92/7.90 [2019-03-28 22:42:15,625 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 17.92/7.90 [2019-03-28 22:42:15,628 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 17.92/7.90 [2019-03-28 22:42:15,630 INFO L271 PluginConnector]: Initializing CDTParser... 17.92/7.90 [2019-03-28 22:42:15,630 INFO L276 PluginConnector]: CDTParser initialized 17.92/7.90 [2019-03-28 22:42:15,631 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c 17.92/7.90 [2019-03-28 22:42:15,694 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/e3870101b207417baaf761fc97b92f03/FLAG8a19b54e6 17.92/7.90 [2019-03-28 22:42:16,056 INFO L307 CDTParser]: Found 1 translation units. 17.92/7.90 [2019-03-28 22:42:16,057 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c 17.92/7.90 [2019-03-28 22:42:16,063 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/e3870101b207417baaf761fc97b92f03/FLAG8a19b54e6 17.92/7.90 [2019-03-28 22:42:16,471 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/e3870101b207417baaf761fc97b92f03 17.92/7.90 [2019-03-28 22:42:16,482 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 17.92/7.90 [2019-03-28 22:42:16,483 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 17.92/7.90 [2019-03-28 22:42:16,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 17.92/7.90 [2019-03-28 22:42:16,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 17.92/7.90 [2019-03-28 22:42:16,488 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 17.92/7.90 [2019-03-28 22:42:16,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 10:42:16" (1/1) ... 17.92/7.90 [2019-03-28 22:42:16,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a09c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:42:16, skipping insertion in model container 17.92/7.90 [2019-03-28 22:42:16,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 10:42:16" (1/1) ... 17.92/7.90 [2019-03-28 22:42:16,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 17.92/7.90 [2019-03-28 22:42:16,516 INFO L176 MainTranslator]: Built tables and reachable declarations 17.92/7.90 [2019-03-28 22:42:16,673 INFO L206 PostProcessor]: Analyzing one entry point: main 17.92/7.90 [2019-03-28 22:42:16,677 INFO L191 MainTranslator]: Completed pre-run 17.92/7.90 [2019-03-28 22:42:16,693 INFO L206 PostProcessor]: Analyzing one entry point: main 17.92/7.90 [2019-03-28 22:42:16,708 INFO L195 MainTranslator]: Completed translation 17.92/7.90 [2019-03-28 22:42:16,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:42:16 WrapperNode 17.92/7.90 [2019-03-28 22:42:16,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 17.92/7.90 [2019-03-28 22:42:16,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 17.92/7.90 [2019-03-28 22:42:16,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 17.92/7.90 [2019-03-28 22:42:16,710 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 17.92/7.90 [2019-03-28 22:42:16,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:42:16" (1/1) ... 17.92/7.90 [2019-03-28 22:42:16,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:42:16" (1/1) ... 17.92/7.90 [2019-03-28 22:42:16,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 17.92/7.90 [2019-03-28 22:42:16,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 17.92/7.90 [2019-03-28 22:42:16,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 17.92/7.90 [2019-03-28 22:42:16,806 INFO L276 PluginConnector]: Boogie Preprocessor initialized 17.92/7.90 [2019-03-28 22:42:16,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:42:16" (1/1) ... 17.92/7.90 [2019-03-28 22:42:16,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:42:16" (1/1) ... 17.92/7.90 [2019-03-28 22:42:16,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:42:16" (1/1) ... 17.92/7.90 [2019-03-28 22:42:16,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:42:16" (1/1) ... 17.92/7.90 [2019-03-28 22:42:16,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:42:16" (1/1) ... 17.92/7.90 [2019-03-28 22:42:16,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:42:16" (1/1) ... 17.92/7.90 [2019-03-28 22:42:16,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:42:16" (1/1) ... 17.92/7.90 [2019-03-28 22:42:16,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 17.92/7.90 [2019-03-28 22:42:16,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 17.92/7.90 [2019-03-28 22:42:16,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... 17.92/7.90 [2019-03-28 22:42:16,826 INFO L276 PluginConnector]: RCFGBuilder initialized 17.92/7.90 [2019-03-28 22:42:16,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:42:16" (1/1) ... 17.92/7.90 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.92/7.90 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 17.92/7.90 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 17.92/7.90 [2019-03-28 22:42:16,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 17.92/7.90 [2019-03-28 22:42:16,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 17.92/7.90 [2019-03-28 22:42:17,021 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 17.92/7.90 [2019-03-28 22:42:17,021 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. 17.92/7.90 [2019-03-28 22:42:17,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:42:17 BoogieIcfgContainer 17.92/7.90 [2019-03-28 22:42:17,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 17.92/7.90 [2019-03-28 22:42:17,023 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 17.92/7.90 [2019-03-28 22:42:17,023 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 17.92/7.90 [2019-03-28 22:42:17,026 INFO L276 PluginConnector]: BlockEncodingV2 initialized 17.92/7.90 [2019-03-28 22:42:17,027 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:42:17" (1/1) ... 17.92/7.90 [2019-03-28 22:42:17,042 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges 17.92/7.90 [2019-03-28 22:42:17,044 INFO L258 BlockEncoder]: Using Remove infeasible edges 17.92/7.90 [2019-03-28 22:42:17,045 INFO L263 BlockEncoder]: Using Maximize final states 17.92/7.90 [2019-03-28 22:42:17,045 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 17.92/7.90 [2019-03-28 22:42:17,046 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 17.92/7.90 [2019-03-28 22:42:17,047 INFO L296 BlockEncoder]: Using Remove sink states 17.92/7.90 [2019-03-28 22:42:17,048 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 17.92/7.90 [2019-03-28 22:42:17,049 INFO L179 BlockEncoder]: Using Rewrite not-equals 17.92/7.90 [2019-03-28 22:42:17,064 INFO L185 BlockEncoder]: Using Use SBE 17.92/7.90 [2019-03-28 22:42:17,072 INFO L200 BlockEncoder]: SBE split 0 edges 17.92/7.90 [2019-03-28 22:42:17,077 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility 17.92/7.90 [2019-03-28 22:42:17,079 INFO L71 MaximizeFinalStates]: 0 new accepting states 17.92/7.90 [2019-03-28 22:42:17,094 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding 17.92/7.90 [2019-03-28 22:42:17,096 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states 17.92/7.90 [2019-03-28 22:42:17,097 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 17.92/7.90 [2019-03-28 22:42:17,098 INFO L71 MaximizeFinalStates]: 0 new accepting states 17.92/7.90 [2019-03-28 22:42:17,098 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 17.92/7.90 [2019-03-28 22:42:17,099 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 17.92/7.90 [2019-03-28 22:42:17,099 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges 17.92/7.90 [2019-03-28 22:42:17,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:42:17 BasicIcfg 17.92/7.90 [2019-03-28 22:42:17,100 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 17.92/7.90 [2019-03-28 22:42:17,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 17.92/7.90 [2019-03-28 22:42:17,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... 17.92/7.90 [2019-03-28 22:42:17,104 INFO L276 PluginConnector]: TraceAbstraction initialized 17.92/7.90 [2019-03-28 22:42:17,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 10:42:16" (1/4) ... 17.92/7.90 [2019-03-28 22:42:17,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1983a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 10:42:17, skipping insertion in model container 17.92/7.90 [2019-03-28 22:42:17,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:42:16" (2/4) ... 17.92/7.90 [2019-03-28 22:42:17,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1983a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 10:42:17, skipping insertion in model container 17.92/7.90 [2019-03-28 22:42:17,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:42:17" (3/4) ... 17.92/7.90 [2019-03-28 22:42:17,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1983a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:42:17, skipping insertion in model container 17.92/7.90 [2019-03-28 22:42:17,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:42:17" (4/4) ... 17.92/7.90 [2019-03-28 22:42:17,108 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 17.92/7.90 [2019-03-28 22:42:17,118 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 17.92/7.90 [2019-03-28 22:42:17,125 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. 17.92/7.90 [2019-03-28 22:42:17,143 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. 17.92/7.90 [2019-03-28 22:42:17,172 INFO L133 ementStrategyFactory]: Using default assertion order modulation 17.92/7.90 [2019-03-28 22:42:17,172 INFO L382 AbstractCegarLoop]: Interprodecural is true 17.92/7.90 [2019-03-28 22:42:17,173 INFO L383 AbstractCegarLoop]: Hoare is true 17.92/7.90 [2019-03-28 22:42:17,173 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 17.92/7.90 [2019-03-28 22:42:17,173 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 17.92/7.90 [2019-03-28 22:42:17,173 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 17.92/7.90 [2019-03-28 22:42:17,173 INFO L387 AbstractCegarLoop]: Difference is false 17.92/7.90 [2019-03-28 22:42:17,173 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 17.92/7.90 [2019-03-28 22:42:17,174 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 17.92/7.90 [2019-03-28 22:42:17,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. 17.92/7.90 [2019-03-28 22:42:17,194 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. 17.92/7.90 [2019-03-28 22:42:17,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. 17.92/7.90 [2019-03-28 22:42:17,246 INFO L451 ceAbstractionStarter]: At program point L19-2(lines 17 24) the Hoare annotation is: true 17.92/7.90 [2019-03-28 22:42:17,247 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. 17.92/7.90 [2019-03-28 22:42:17,247 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. 17.92/7.90 [2019-03-28 22:42:17,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:42:17 BasicIcfg 17.92/7.90 [2019-03-28 22:42:17,255 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 17.92/7.90 [2019-03-28 22:42:17,256 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 17.92/7.90 [2019-03-28 22:42:17,256 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 17.92/7.90 [2019-03-28 22:42:17,260 INFO L276 PluginConnector]: BuchiAutomizer initialized 17.92/7.90 [2019-03-28 22:42:17,261 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 17.92/7.90 [2019-03-28 22:42:17,261 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.03 10:42:16" (1/5) ... 17.92/7.90 [2019-03-28 22:42:17,261 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a31b192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 10:42:17, skipping insertion in model container 17.92/7.90 [2019-03-28 22:42:17,262 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 17.92/7.90 [2019-03-28 22:42:17,262 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:42:16" (2/5) ... 17.92/7.90 [2019-03-28 22:42:17,262 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a31b192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 10:42:17, skipping insertion in model container 17.92/7.90 [2019-03-28 22:42:17,262 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 17.92/7.90 [2019-03-28 22:42:17,262 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:42:17" (3/5) ... 17.92/7.90 [2019-03-28 22:42:17,263 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a31b192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:42:17, skipping insertion in model container 17.92/7.90 [2019-03-28 22:42:17,263 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 17.92/7.90 [2019-03-28 22:42:17,263 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:42:17" (4/5) ... 17.92/7.90 [2019-03-28 22:42:17,263 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a31b192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:42:17, skipping insertion in model container 17.92/7.90 [2019-03-28 22:42:17,263 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 17.92/7.90 [2019-03-28 22:42:17,264 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:42:17" (5/5) ... 17.92/7.90 [2019-03-28 22:42:17,265 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 17.92/7.90 [2019-03-28 22:42:17,292 INFO L133 ementStrategyFactory]: Using default assertion order modulation 17.92/7.90 [2019-03-28 22:42:17,293 INFO L374 BuchiCegarLoop]: Interprodecural is true 17.92/7.90 [2019-03-28 22:42:17,293 INFO L375 BuchiCegarLoop]: Hoare is true 17.92/7.90 [2019-03-28 22:42:17,293 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates 17.92/7.90 [2019-03-28 22:42:17,293 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE 17.92/7.90 [2019-03-28 22:42:17,293 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION 17.92/7.90 [2019-03-28 22:42:17,294 INFO L379 BuchiCegarLoop]: Difference is false 17.92/7.90 [2019-03-28 22:42:17,294 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA 17.92/7.90 [2019-03-28 22:42:17,294 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== 17.92/7.90 [2019-03-28 22:42:17,297 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. 17.92/7.90 [2019-03-28 22:42:17,315 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 17.92/7.90 [2019-03-28 22:42:17,315 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 17.92/7.90 [2019-03-28 22:42:17,316 INFO L119 BuchiIsEmpty]: Starting construction of run 17.92/7.90 [2019-03-28 22:42:17,321 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 17.92/7.90 [2019-03-28 22:42:17,321 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 17.92/7.90 [2019-03-28 22:42:17,321 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ 17.92/7.90 [2019-03-28 22:42:17,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. 17.92/7.90 [2019-03-28 22:42:17,322 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 17.92/7.90 [2019-03-28 22:42:17,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 17.92/7.90 [2019-03-28 22:42:17,322 INFO L119 BuchiIsEmpty]: Starting construction of run 17.92/7.90 [2019-03-28 22:42:17,322 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 17.92/7.90 [2019-03-28 22:42:17,323 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 17.92/7.90 [2019-03-28 22:42:17,328 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [25] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~a~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0] 4#L19-2true 17.92/7.90 [2019-03-28 22:42:17,328 INFO L796 eck$LassoCheckResult]: Loop: 4#L19-2true [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~a~0_7 (+ v_ULTIMATE.start_main_~b~0_6 v_ULTIMATE.start_main_~a~0_8)) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 5#L19true [34] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_9 (- v_ULTIMATE.start_main_~b~0_10)) (> 0 v_ULTIMATE.start_main_~b~0_10)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_10} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 4#L19-2true 17.92/7.90 [2019-03-28 22:42:17,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.92/7.90 [2019-03-28 22:42:17,335 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times 17.92/7.90 [2019-03-28 22:42:17,337 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.92/7.90 [2019-03-28 22:42:17,337 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.92/7.90 [2019-03-28 22:42:17,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:17,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:17,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:17,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.92/7.90 [2019-03-28 22:42:17,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1863, now seen corresponding path program 1 times 17.92/7.90 [2019-03-28 22:42:17,408 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.92/7.90 [2019-03-28 22:42:17,408 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.92/7.90 [2019-03-28 22:42:17,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:17,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:17,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:17,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:17,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.92/7.90 [2019-03-28 22:42:17,424 INFO L82 PathProgramCache]: Analyzing trace with hash 54718, now seen corresponding path program 1 times 17.92/7.90 [2019-03-28 22:42:17,424 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.92/7.90 [2019-03-28 22:42:17,425 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.92/7.90 [2019-03-28 22:42:17,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:17,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:17,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:17,478 INFO L216 LassoAnalysis]: Preferences: 17.92/7.90 [2019-03-28 22:42:17,480 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 17.92/7.90 [2019-03-28 22:42:17,480 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 17.92/7.90 [2019-03-28 22:42:17,480 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 17.92/7.90 [2019-03-28 22:42:17,481 INFO L127 ssoRankerPreferences]: Use exernal solver: true 17.92/7.90 [2019-03-28 22:42:17,481 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.92/7.90 [2019-03-28 22:42:17,481 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 17.92/7.90 [2019-03-28 22:42:17,481 INFO L130 ssoRankerPreferences]: Path of dumped script: 17.92/7.90 [2019-03-28 22:42:17,481 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 17.92/7.90 [2019-03-28 22:42:17,481 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 17.92/7.90 [2019-03-28 22:42:17,482 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 17.92/7.90 [2019-03-28 22:42:17,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:17,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:17,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:17,607 INFO L300 LassoAnalysis]: Preprocessing complete. 17.92/7.90 [2019-03-28 22:42:17,608 INFO L412 LassoAnalysis]: Checking for nontermination... 17.92/7.90 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.92/7.90 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.92/7.90 Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.92/7.90 [2019-03-28 22:42:17,615 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.92/7.90 [2019-03-28 22:42:17,615 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.92/7.90 [2019-03-28 22:42:17,648 INFO L445 LassoAnalysis]: Proved nontermination for one component. 17.92/7.90 [2019-03-28 22:42:17,648 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 17.92/7.90 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.92/7.90 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.92/7.90 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.92/7.90 [2019-03-28 22:42:17,653 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.92/7.90 [2019-03-28 22:42:17,654 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.92/7.90 [2019-03-28 22:42:17,681 INFO L445 LassoAnalysis]: Proved nontermination for one component. 17.92/7.90 [2019-03-28 22:42:17,681 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 17.92/7.90 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.92/7.90 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.92/7.90 Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.92/7.90 [2019-03-28 22:42:17,686 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.92/7.90 [2019-03-28 22:42:17,686 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.92/7.90 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.92/7.90 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.92/7.90 Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.92/7.90 [2019-03-28 22:42:17,718 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 17.92/7.90 [2019-03-28 22:42:17,718 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.92/7.90 [2019-03-28 22:42:17,761 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 17.92/7.90 [2019-03-28 22:42:17,763 INFO L216 LassoAnalysis]: Preferences: 17.92/7.90 [2019-03-28 22:42:17,763 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 17.92/7.90 [2019-03-28 22:42:17,764 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 17.92/7.90 [2019-03-28 22:42:17,764 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 17.92/7.90 [2019-03-28 22:42:17,764 INFO L127 ssoRankerPreferences]: Use exernal solver: false 17.92/7.90 [2019-03-28 22:42:17,764 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 17.92/7.90 [2019-03-28 22:42:17,764 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 17.92/7.90 [2019-03-28 22:42:17,764 INFO L130 ssoRankerPreferences]: Path of dumped script: 17.92/7.90 [2019-03-28 22:42:17,764 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 17.92/7.90 [2019-03-28 22:42:17,765 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 17.92/7.90 [2019-03-28 22:42:17,765 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 17.92/7.90 [2019-03-28 22:42:17,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:17,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:17,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:17,862 INFO L300 LassoAnalysis]: Preprocessing complete. 17.92/7.90 [2019-03-28 22:42:17,868 INFO L497 LassoAnalysis]: Using template 'affine'. 17.92/7.90 [2019-03-28 22:42:17,870 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.92/7.90 Termination analysis: LINEAR_WITH_GUESSES 17.92/7.90 Number of strict supporting invariants: 0 17.92/7.90 Number of non-strict supporting invariants: 1 17.92/7.90 Consider only non-deceasing supporting invariants: true 17.92/7.90 Simplify termination arguments: true 17.92/7.90 Simplify supporting invariants: trueOverapproximate stem: false 17.92/7.90 [2019-03-28 22:42:17,871 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.92/7.90 [2019-03-28 22:42:17,872 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.92/7.90 [2019-03-28 22:42:17,872 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.92/7.90 [2019-03-28 22:42:17,872 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.92/7.90 [2019-03-28 22:42:17,876 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 17.92/7.90 [2019-03-28 22:42:17,877 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 17.92/7.90 [2019-03-28 22:42:17,885 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 17.92/7.90 [2019-03-28 22:42:17,886 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.92/7.90 Termination analysis: LINEAR_WITH_GUESSES 17.92/7.90 Number of strict supporting invariants: 0 17.92/7.90 Number of non-strict supporting invariants: 1 17.92/7.90 Consider only non-deceasing supporting invariants: true 17.92/7.90 Simplify termination arguments: true 17.92/7.90 Simplify supporting invariants: trueOverapproximate stem: false 17.92/7.90 [2019-03-28 22:42:17,887 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.92/7.90 [2019-03-28 22:42:17,887 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 17.92/7.90 [2019-03-28 22:42:17,888 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.92/7.90 [2019-03-28 22:42:17,888 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.92/7.90 [2019-03-28 22:42:17,888 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.92/7.90 [2019-03-28 22:42:17,889 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 17.92/7.90 [2019-03-28 22:42:17,889 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 17.92/7.90 [2019-03-28 22:42:17,898 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 17.92/7.90 [2019-03-28 22:42:17,903 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. 17.92/7.90 [2019-03-28 22:42:17,903 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. 17.92/7.90 [2019-03-28 22:42:17,905 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 17.92/7.90 [2019-03-28 22:42:17,906 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 17.92/7.90 [2019-03-28 22:42:17,906 INFO L518 LassoAnalysis]: Proved termination. 17.92/7.90 [2019-03-28 22:42:17,907 INFO L520 LassoAnalysis]: Termination argument consisting of: 17.92/7.90 Ranking function f(ULTIMATE.start_main_~b~0) = -1*ULTIMATE.start_main_~b~0 17.92/7.90 Supporting invariants [] 17.92/7.90 [2019-03-28 22:42:17,908 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 17.92/7.90 [2019-03-28 22:42:17,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.92/7.90 [2019-03-28 22:42:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 17.92/7.90 [2019-03-28 22:42:17,955 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core 17.92/7.90 [2019-03-28 22:42:17,956 INFO L279 TraceCheckSpWp]: Computing forward predicates... 17.92/7.90 [2019-03-28 22:42:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 17.92/7.90 [2019-03-28 22:42:17,971 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core 17.92/7.90 [2019-03-28 22:42:17,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... 17.92/7.90 [2019-03-28 22:42:17,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 17.92/7.90 [2019-03-28 22:42:18,006 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization 17.92/7.90 [2019-03-28 22:42:18,010 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 17.92/7.90 [2019-03-28 22:42:18,012 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. 17.92/7.90 [2019-03-28 22:42:18,038 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 7 states and 10 transitions. Complement of second has 4 states. 17.92/7.90 [2019-03-28 22:42:18,038 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 17.92/7.90 [2019-03-28 22:42:18,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 17.92/7.90 [2019-03-28 22:42:18,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. 17.92/7.90 [2019-03-28 22:42:18,042 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 2 letters. 17.92/7.90 [2019-03-28 22:42:18,044 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.92/7.90 [2019-03-28 22:42:18,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. 17.92/7.90 [2019-03-28 22:42:18,044 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.92/7.90 [2019-03-28 22:42:18,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 4 letters. 17.92/7.90 [2019-03-28 22:42:18,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.92/7.90 [2019-03-28 22:42:18,050 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. 17.92/7.90 [2019-03-28 22:42:18,051 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 17.92/7.90 [2019-03-28 22:42:18,055 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 10 transitions. 17.92/7.90 [2019-03-28 22:42:18,056 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 17.92/7.90 [2019-03-28 22:42:18,056 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 17.92/7.90 [2019-03-28 22:42:18,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. 17.92/7.90 [2019-03-28 22:42:18,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 17.92/7.90 [2019-03-28 22:42:18,057 INFO L706 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. 17.92/7.90 [2019-03-28 22:42:18,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. 17.92/7.90 [2019-03-28 22:42:18,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. 17.92/7.90 [2019-03-28 22:42:18,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. 17.92/7.90 [2019-03-28 22:42:18,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. 17.92/7.90 [2019-03-28 22:42:18,085 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. 17.92/7.90 [2019-03-28 22:42:18,085 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. 17.92/7.90 [2019-03-28 22:42:18,085 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ 17.92/7.90 [2019-03-28 22:42:18,086 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. 17.92/7.90 [2019-03-28 22:42:18,086 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 17.92/7.90 [2019-03-28 22:42:18,086 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 17.92/7.90 [2019-03-28 22:42:18,086 INFO L119 BuchiIsEmpty]: Starting construction of run 17.92/7.90 [2019-03-28 22:42:18,087 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] 17.92/7.90 [2019-03-28 22:42:18,087 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 17.92/7.90 [2019-03-28 22:42:18,087 INFO L794 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~a~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0] 42#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~a~0_7 (+ v_ULTIMATE.start_main_~b~0_6 v_ULTIMATE.start_main_~a~0_8)) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 47#L19 [29] L19-->L19-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~b~0_8) (= v_ULTIMATE.start_main_~b~0_7 (+ (* (- 1) v_ULTIMATE.start_main_~b~0_8) (- 1)))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 43#L19-2 17.92/7.90 [2019-03-28 22:42:18,088 INFO L796 eck$LassoCheckResult]: Loop: 43#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~a~0_7 (+ v_ULTIMATE.start_main_~b~0_6 v_ULTIMATE.start_main_~a~0_8)) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 44#L19 [34] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_9 (- v_ULTIMATE.start_main_~b~0_10)) (> 0 v_ULTIMATE.start_main_~b~0_10)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_10} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 43#L19-2 17.92/7.90 [2019-03-28 22:42:18,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.92/7.90 [2019-03-28 22:42:18,088 INFO L82 PathProgramCache]: Analyzing trace with hash 54713, now seen corresponding path program 1 times 17.92/7.90 [2019-03-28 22:42:18,088 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.92/7.90 [2019-03-28 22:42:18,088 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.92/7.90 [2019-03-28 22:42:18,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:18,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.92/7.90 [2019-03-28 22:42:18,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1863, now seen corresponding path program 2 times 17.92/7.90 [2019-03-28 22:42:18,101 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.92/7.90 [2019-03-28 22:42:18,101 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.92/7.90 [2019-03-28 22:42:18,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:18,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.92/7.90 [2019-03-28 22:42:18,109 INFO L82 PathProgramCache]: Analyzing trace with hash 52580095, now seen corresponding path program 1 times 17.92/7.90 [2019-03-28 22:42:18,109 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.92/7.90 [2019-03-28 22:42:18,109 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.92/7.90 [2019-03-28 22:42:18,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,110 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:18,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:18,139 INFO L216 LassoAnalysis]: Preferences: 17.92/7.90 [2019-03-28 22:42:18,139 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 17.92/7.90 [2019-03-28 22:42:18,139 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 17.92/7.90 [2019-03-28 22:42:18,140 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 17.92/7.90 [2019-03-28 22:42:18,140 INFO L127 ssoRankerPreferences]: Use exernal solver: true 17.92/7.90 [2019-03-28 22:42:18,140 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.92/7.90 [2019-03-28 22:42:18,140 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 17.92/7.90 [2019-03-28 22:42:18,140 INFO L130 ssoRankerPreferences]: Path of dumped script: 17.92/7.90 [2019-03-28 22:42:18,140 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 17.92/7.90 [2019-03-28 22:42:18,140 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 17.92/7.90 [2019-03-28 22:42:18,141 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 17.92/7.90 [2019-03-28 22:42:18,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:18,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:18,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:18,217 INFO L300 LassoAnalysis]: Preprocessing complete. 17.92/7.90 [2019-03-28 22:42:18,217 INFO L412 LassoAnalysis]: Checking for nontermination... 17.92/7.90 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.92/7.90 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.92/7.90 Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.92/7.90 [2019-03-28 22:42:18,221 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.92/7.90 [2019-03-28 22:42:18,221 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.92/7.90 [2019-03-28 22:42:18,248 INFO L445 LassoAnalysis]: Proved nontermination for one component. 17.92/7.90 [2019-03-28 22:42:18,249 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 17.92/7.90 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.92/7.90 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.92/7.90 Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.92/7.90 [2019-03-28 22:42:18,253 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.92/7.90 [2019-03-28 22:42:18,253 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.92/7.90 [2019-03-28 22:42:18,281 INFO L445 LassoAnalysis]: Proved nontermination for one component. 17.92/7.90 [2019-03-28 22:42:18,281 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 17.92/7.90 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.92/7.90 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.92/7.90 Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.92/7.90 [2019-03-28 22:42:18,285 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.92/7.90 [2019-03-28 22:42:18,286 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.92/7.90 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.92/7.90 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.92/7.90 Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.92/7.90 [2019-03-28 22:42:18,318 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 17.92/7.90 [2019-03-28 22:42:18,318 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.92/7.90 [2019-03-28 22:42:18,359 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 17.92/7.90 [2019-03-28 22:42:18,362 INFO L216 LassoAnalysis]: Preferences: 17.92/7.90 [2019-03-28 22:42:18,362 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 17.92/7.90 [2019-03-28 22:42:18,362 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 17.92/7.90 [2019-03-28 22:42:18,362 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 17.92/7.90 [2019-03-28 22:42:18,362 INFO L127 ssoRankerPreferences]: Use exernal solver: false 17.92/7.90 [2019-03-28 22:42:18,362 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 17.92/7.90 [2019-03-28 22:42:18,363 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 17.92/7.90 [2019-03-28 22:42:18,363 INFO L130 ssoRankerPreferences]: Path of dumped script: 17.92/7.90 [2019-03-28 22:42:18,363 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 17.92/7.90 [2019-03-28 22:42:18,363 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 17.92/7.90 [2019-03-28 22:42:18,363 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 17.92/7.90 [2019-03-28 22:42:18,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:18,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:18,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:18,447 INFO L300 LassoAnalysis]: Preprocessing complete. 17.92/7.90 [2019-03-28 22:42:18,447 INFO L497 LassoAnalysis]: Using template 'affine'. 17.92/7.90 [2019-03-28 22:42:18,447 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.92/7.90 Termination analysis: LINEAR_WITH_GUESSES 17.92/7.90 Number of strict supporting invariants: 0 17.92/7.90 Number of non-strict supporting invariants: 1 17.92/7.90 Consider only non-deceasing supporting invariants: true 17.92/7.90 Simplify termination arguments: true 17.92/7.90 Simplify supporting invariants: trueOverapproximate stem: false 17.92/7.90 [2019-03-28 22:42:18,448 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.92/7.90 [2019-03-28 22:42:18,448 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.92/7.90 [2019-03-28 22:42:18,449 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.92/7.90 [2019-03-28 22:42:18,449 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.92/7.90 [2019-03-28 22:42:18,451 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 17.92/7.90 [2019-03-28 22:42:18,451 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 17.92/7.90 [2019-03-28 22:42:18,455 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 17.92/7.90 [2019-03-28 22:42:18,456 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.92/7.90 Termination analysis: LINEAR_WITH_GUESSES 17.92/7.90 Number of strict supporting invariants: 0 17.92/7.90 Number of non-strict supporting invariants: 1 17.92/7.90 Consider only non-deceasing supporting invariants: true 17.92/7.90 Simplify termination arguments: true 17.92/7.90 Simplify supporting invariants: trueOverapproximate stem: false 17.92/7.90 [2019-03-28 22:42:18,456 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.92/7.90 [2019-03-28 22:42:18,457 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.92/7.90 [2019-03-28 22:42:18,457 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.92/7.90 [2019-03-28 22:42:18,457 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.92/7.90 [2019-03-28 22:42:18,459 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 17.92/7.90 [2019-03-28 22:42:18,460 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 17.92/7.90 [2019-03-28 22:42:18,465 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 17.92/7.90 [2019-03-28 22:42:18,466 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.92/7.90 Termination analysis: LINEAR_WITH_GUESSES 17.92/7.90 Number of strict supporting invariants: 0 17.92/7.90 Number of non-strict supporting invariants: 1 17.92/7.90 Consider only non-deceasing supporting invariants: true 17.92/7.90 Simplify termination arguments: true 17.92/7.90 Simplify supporting invariants: trueOverapproximate stem: false 17.92/7.90 [2019-03-28 22:42:18,466 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.92/7.90 [2019-03-28 22:42:18,466 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 17.92/7.90 [2019-03-28 22:42:18,467 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.92/7.90 [2019-03-28 22:42:18,467 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.92/7.90 [2019-03-28 22:42:18,467 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.92/7.90 [2019-03-28 22:42:18,468 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 17.92/7.90 [2019-03-28 22:42:18,468 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 17.92/7.90 [2019-03-28 22:42:18,474 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 17.92/7.90 [2019-03-28 22:42:18,478 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. 17.92/7.90 [2019-03-28 22:42:18,478 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. 17.92/7.90 [2019-03-28 22:42:18,478 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 17.92/7.90 [2019-03-28 22:42:18,479 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 17.92/7.90 [2019-03-28 22:42:18,479 INFO L518 LassoAnalysis]: Proved termination. 17.92/7.90 [2019-03-28 22:42:18,479 INFO L520 LassoAnalysis]: Termination argument consisting of: 17.92/7.90 Ranking function f(ULTIMATE.start_main_~b~0) = -1*ULTIMATE.start_main_~b~0 17.92/7.90 Supporting invariants [] 17.92/7.90 [2019-03-28 22:42:18,479 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 17.92/7.90 [2019-03-28 22:42:18,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.92/7.90 [2019-03-28 22:42:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 17.92/7.90 [2019-03-28 22:42:18,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core 17.92/7.90 [2019-03-28 22:42:18,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... 17.92/7.90 [2019-03-28 22:42:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 17.92/7.90 [2019-03-28 22:42:18,511 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core 17.92/7.90 [2019-03-28 22:42:18,511 INFO L279 TraceCheckSpWp]: Computing forward predicates... 17.92/7.90 [2019-03-28 22:42:18,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 17.92/7.90 [2019-03-28 22:42:18,512 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization 17.92/7.90 [2019-03-28 22:42:18,512 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 17.92/7.90 [2019-03-28 22:42:18,513 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. 17.92/7.90 [2019-03-28 22:42:18,532 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 9 states and 13 transitions. Complement of second has 4 states. 17.92/7.90 [2019-03-28 22:42:18,532 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 17.92/7.90 [2019-03-28 22:42:18,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 17.92/7.90 [2019-03-28 22:42:18,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. 17.92/7.90 [2019-03-28 22:42:18,534 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. 17.92/7.90 [2019-03-28 22:42:18,534 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.92/7.90 [2019-03-28 22:42:18,534 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. 17.92/7.90 [2019-03-28 22:42:18,534 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.92/7.90 [2019-03-28 22:42:18,535 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 4 letters. 17.92/7.90 [2019-03-28 22:42:18,535 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.92/7.90 [2019-03-28 22:42:18,536 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 13 transitions. 17.92/7.90 [2019-03-28 22:42:18,537 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 17.92/7.90 [2019-03-28 22:42:18,537 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 13 transitions. 17.92/7.90 [2019-03-28 22:42:18,537 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 17.92/7.90 [2019-03-28 22:42:18,538 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 17.92/7.90 [2019-03-28 22:42:18,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. 17.92/7.90 [2019-03-28 22:42:18,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 17.92/7.90 [2019-03-28 22:42:18,538 INFO L706 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. 17.92/7.90 [2019-03-28 22:42:18,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. 17.92/7.90 [2019-03-28 22:42:18,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 5. 17.92/7.90 [2019-03-28 22:42:18,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. 17.92/7.90 [2019-03-28 22:42:18,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. 17.92/7.90 [2019-03-28 22:42:18,539 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. 17.92/7.90 [2019-03-28 22:42:18,540 INFO L609 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. 17.92/7.90 [2019-03-28 22:42:18,540 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ 17.92/7.90 [2019-03-28 22:42:18,540 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. 17.92/7.90 [2019-03-28 22:42:18,540 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 17.92/7.90 [2019-03-28 22:42:18,540 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 17.92/7.90 [2019-03-28 22:42:18,540 INFO L119 BuchiIsEmpty]: Starting construction of run 17.92/7.90 [2019-03-28 22:42:18,541 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 17.92/7.90 [2019-03-28 22:42:18,541 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 17.92/7.90 [2019-03-28 22:42:18,541 INFO L794 eck$LassoCheckResult]: Stem: 91#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~a~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0] 92#L19-2 17.92/7.90 [2019-03-28 22:42:18,541 INFO L796 eck$LassoCheckResult]: Loop: 92#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~a~0_7 (+ v_ULTIMATE.start_main_~b~0_6 v_ULTIMATE.start_main_~a~0_8)) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 94#L19 [29] L19-->L19-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~b~0_8) (= v_ULTIMATE.start_main_~b~0_7 (+ (* (- 1) v_ULTIMATE.start_main_~b~0_8) (- 1)))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 92#L19-2 17.92/7.90 [2019-03-28 22:42:18,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.92/7.90 [2019-03-28 22:42:18,542 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 2 times 17.92/7.90 [2019-03-28 22:42:18,542 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.92/7.90 [2019-03-28 22:42:18,542 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.92/7.90 [2019-03-28 22:42:18,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:18,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.92/7.90 [2019-03-28 22:42:18,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1858, now seen corresponding path program 1 times 17.92/7.90 [2019-03-28 22:42:18,549 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.92/7.90 [2019-03-28 22:42:18,549 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.92/7.90 [2019-03-28 22:42:18,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,550 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:18,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.92/7.90 [2019-03-28 22:42:18,556 INFO L82 PathProgramCache]: Analyzing trace with hash 54713, now seen corresponding path program 2 times 17.92/7.90 [2019-03-28 22:42:18,556 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.92/7.90 [2019-03-28 22:42:18,556 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.92/7.90 [2019-03-28 22:42:18,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:18,586 INFO L216 LassoAnalysis]: Preferences: 17.92/7.90 [2019-03-28 22:42:18,586 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 17.92/7.90 [2019-03-28 22:42:18,586 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 17.92/7.90 [2019-03-28 22:42:18,586 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 17.92/7.90 [2019-03-28 22:42:18,586 INFO L127 ssoRankerPreferences]: Use exernal solver: true 17.92/7.90 [2019-03-28 22:42:18,587 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.92/7.90 [2019-03-28 22:42:18,587 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 17.92/7.90 [2019-03-28 22:42:18,587 INFO L130 ssoRankerPreferences]: Path of dumped script: 17.92/7.90 [2019-03-28 22:42:18,587 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 17.92/7.90 [2019-03-28 22:42:18,587 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 17.92/7.90 [2019-03-28 22:42:18,587 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 17.92/7.90 [2019-03-28 22:42:18,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:18,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:18,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:18,669 INFO L300 LassoAnalysis]: Preprocessing complete. 17.92/7.90 [2019-03-28 22:42:18,670 INFO L412 LassoAnalysis]: Checking for nontermination... 17.92/7.90 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.92/7.90 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.92/7.90 Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.92/7.90 [2019-03-28 22:42:18,674 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.92/7.90 [2019-03-28 22:42:18,674 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.92/7.90 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.92/7.90 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.92/7.90 Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.92/7.90 [2019-03-28 22:42:18,706 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 17.92/7.90 [2019-03-28 22:42:18,706 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.92/7.90 [2019-03-28 22:42:18,740 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 17.92/7.90 [2019-03-28 22:42:18,742 INFO L216 LassoAnalysis]: Preferences: 17.92/7.90 [2019-03-28 22:42:18,742 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 17.92/7.90 [2019-03-28 22:42:18,743 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 17.92/7.90 [2019-03-28 22:42:18,743 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 17.92/7.90 [2019-03-28 22:42:18,743 INFO L127 ssoRankerPreferences]: Use exernal solver: false 17.92/7.90 [2019-03-28 22:42:18,743 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 17.92/7.90 [2019-03-28 22:42:18,744 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 17.92/7.90 [2019-03-28 22:42:18,744 INFO L130 ssoRankerPreferences]: Path of dumped script: 17.92/7.90 [2019-03-28 22:42:18,744 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 17.92/7.90 [2019-03-28 22:42:18,744 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 17.92/7.90 [2019-03-28 22:42:18,744 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 17.92/7.90 [2019-03-28 22:42:18,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:18,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:18,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:18,806 INFO L300 LassoAnalysis]: Preprocessing complete. 17.92/7.90 [2019-03-28 22:42:18,807 INFO L497 LassoAnalysis]: Using template 'affine'. 17.92/7.90 [2019-03-28 22:42:18,807 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.92/7.90 Termination analysis: LINEAR_WITH_GUESSES 17.92/7.90 Number of strict supporting invariants: 0 17.92/7.90 Number of non-strict supporting invariants: 1 17.92/7.90 Consider only non-deceasing supporting invariants: true 17.92/7.90 Simplify termination arguments: true 17.92/7.90 Simplify supporting invariants: trueOverapproximate stem: false 17.92/7.90 [2019-03-28 22:42:18,808 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.92/7.90 [2019-03-28 22:42:18,808 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 17.92/7.90 [2019-03-28 22:42:18,808 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.92/7.90 [2019-03-28 22:42:18,808 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.92/7.90 [2019-03-28 22:42:18,809 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.92/7.90 [2019-03-28 22:42:18,809 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 17.92/7.90 [2019-03-28 22:42:18,809 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 17.92/7.90 [2019-03-28 22:42:18,815 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 17.92/7.90 [2019-03-28 22:42:18,822 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. 17.92/7.90 [2019-03-28 22:42:18,822 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. 17.92/7.90 [2019-03-28 22:42:18,822 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 17.92/7.90 [2019-03-28 22:42:18,823 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 17.92/7.90 [2019-03-28 22:42:18,823 INFO L518 LassoAnalysis]: Proved termination. 17.92/7.90 [2019-03-28 22:42:18,823 INFO L520 LassoAnalysis]: Termination argument consisting of: 17.92/7.90 Ranking function f(ULTIMATE.start_main_~b~0) = 2*ULTIMATE.start_main_~b~0 + 1 17.92/7.90 Supporting invariants [] 17.92/7.90 [2019-03-28 22:42:18,823 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 17.92/7.90 [2019-03-28 22:42:18,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.92/7.90 [2019-03-28 22:42:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 17.92/7.90 [2019-03-28 22:42:18,846 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core 17.92/7.90 [2019-03-28 22:42:18,846 INFO L279 TraceCheckSpWp]: Computing forward predicates... 17.92/7.90 [2019-03-28 22:42:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 17.92/7.90 [2019-03-28 22:42:18,852 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core 17.92/7.90 [2019-03-28 22:42:18,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... 17.92/7.90 [2019-03-28 22:42:18,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 17.92/7.90 [2019-03-28 22:42:18,853 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization 17.92/7.90 [2019-03-28 22:42:18,853 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 17.92/7.90 [2019-03-28 22:42:18,854 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. 17.92/7.90 [2019-03-28 22:42:18,866 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 11 states and 17 transitions. Complement of second has 4 states. 17.92/7.90 [2019-03-28 22:42:18,867 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 17.92/7.90 [2019-03-28 22:42:18,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 17.92/7.90 [2019-03-28 22:42:18,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. 17.92/7.90 [2019-03-28 22:42:18,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 2 letters. 17.92/7.90 [2019-03-28 22:42:18,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.92/7.90 [2019-03-28 22:42:18,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. 17.92/7.90 [2019-03-28 22:42:18,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.92/7.90 [2019-03-28 22:42:18,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 4 letters. 17.92/7.90 [2019-03-28 22:42:18,869 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.92/7.90 [2019-03-28 22:42:18,870 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. 17.92/7.90 [2019-03-28 22:42:18,871 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 17.92/7.90 [2019-03-28 22:42:18,871 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 9 states and 13 transitions. 17.92/7.90 [2019-03-28 22:42:18,871 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 17.92/7.90 [2019-03-28 22:42:18,871 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 17.92/7.90 [2019-03-28 22:42:18,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. 17.92/7.90 [2019-03-28 22:42:18,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 17.92/7.90 [2019-03-28 22:42:18,872 INFO L706 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. 17.92/7.90 [2019-03-28 22:42:18,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. 17.92/7.90 [2019-03-28 22:42:18,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. 17.92/7.90 [2019-03-28 22:42:18,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. 17.92/7.90 [2019-03-28 22:42:18,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 12 transitions. 17.92/7.90 [2019-03-28 22:42:18,874 INFO L729 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. 17.92/7.90 [2019-03-28 22:42:18,874 INFO L609 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. 17.92/7.90 [2019-03-28 22:42:18,874 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ 17.92/7.90 [2019-03-28 22:42:18,874 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 12 transitions. 17.92/7.90 [2019-03-28 22:42:18,874 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 17.92/7.90 [2019-03-28 22:42:18,875 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 17.92/7.90 [2019-03-28 22:42:18,875 INFO L119 BuchiIsEmpty]: Starting construction of run 17.92/7.90 [2019-03-28 22:42:18,877 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] 17.92/7.90 [2019-03-28 22:42:18,877 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 17.92/7.90 [2019-03-28 22:42:18,878 INFO L794 eck$LassoCheckResult]: Stem: 135#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~a~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0] 136#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~a~0_7 (+ v_ULTIMATE.start_main_~b~0_6 v_ULTIMATE.start_main_~a~0_8)) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 138#L19 [34] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_9 (- v_ULTIMATE.start_main_~b~0_10)) (> 0 v_ULTIMATE.start_main_~b~0_10)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_10} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 142#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~a~0_7 (+ v_ULTIMATE.start_main_~b~0_6 v_ULTIMATE.start_main_~a~0_8)) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 140#L19 17.92/7.90 [2019-03-28 22:42:18,878 INFO L796 eck$LassoCheckResult]: Loop: 140#L19 [29] L19-->L19-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~b~0_8) (= v_ULTIMATE.start_main_~b~0_7 (+ (* (- 1) v_ULTIMATE.start_main_~b~0_8) (- 1)))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 141#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~a~0_7 (+ v_ULTIMATE.start_main_~b~0_6 v_ULTIMATE.start_main_~a~0_8)) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 140#L19 17.92/7.90 [2019-03-28 22:42:18,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.92/7.90 [2019-03-28 22:42:18,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1696286, now seen corresponding path program 2 times 17.92/7.90 [2019-03-28 22:42:18,878 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.92/7.90 [2019-03-28 22:42:18,879 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.92/7.90 [2019-03-28 22:42:18,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,880 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:18,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.92/7.90 [2019-03-28 22:42:18,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1888, now seen corresponding path program 2 times 17.92/7.90 [2019-03-28 22:42:18,889 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.92/7.90 [2019-03-28 22:42:18,889 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.92/7.90 [2019-03-28 22:42:18,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,891 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:18,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:18,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.92/7.90 [2019-03-28 22:42:18,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1630131773, now seen corresponding path program 2 times 17.92/7.90 [2019-03-28 22:42:18,896 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.92/7.90 [2019-03-28 22:42:18,897 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.92/7.90 [2019-03-28 22:42:18,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,898 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.90 [2019-03-28 22:42:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.90 [2019-03-28 22:42:18,928 INFO L216 LassoAnalysis]: Preferences: 17.92/7.90 [2019-03-28 22:42:18,928 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 17.92/7.90 [2019-03-28 22:42:18,928 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 17.92/7.90 [2019-03-28 22:42:18,928 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 17.92/7.90 [2019-03-28 22:42:18,928 INFO L127 ssoRankerPreferences]: Use exernal solver: true 17.92/7.90 [2019-03-28 22:42:18,929 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.92/7.90 [2019-03-28 22:42:18,929 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 17.92/7.90 [2019-03-28 22:42:18,929 INFO L130 ssoRankerPreferences]: Path of dumped script: 17.92/7.90 [2019-03-28 22:42:18,929 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop 17.92/7.90 [2019-03-28 22:42:18,929 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 17.92/7.90 [2019-03-28 22:42:18,929 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 17.92/7.90 [2019-03-28 22:42:18,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:18,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:18,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:19,006 INFO L300 LassoAnalysis]: Preprocessing complete. 17.92/7.90 [2019-03-28 22:42:19,007 INFO L412 LassoAnalysis]: Checking for nontermination... 17.92/7.90 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.92/7.90 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.92/7.90 Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.92/7.90 [2019-03-28 22:42:19,011 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.92/7.90 [2019-03-28 22:42:19,011 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.92/7.90 [2019-03-28 22:42:19,042 INFO L445 LassoAnalysis]: Proved nontermination for one component. 17.92/7.90 [2019-03-28 22:42:19,042 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 17.92/7.90 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.92/7.90 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.92/7.90 Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.92/7.90 [2019-03-28 22:42:19,047 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.92/7.90 [2019-03-28 22:42:19,048 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.92/7.90 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.92/7.90 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.92/7.90 Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.92/7.90 [2019-03-28 22:42:19,080 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 17.92/7.90 [2019-03-28 22:42:19,080 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.92/7.90 [2019-03-28 22:42:19,116 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 17.92/7.90 [2019-03-28 22:42:19,118 INFO L216 LassoAnalysis]: Preferences: 17.92/7.90 [2019-03-28 22:42:19,118 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 17.92/7.90 [2019-03-28 22:42:19,118 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 17.92/7.90 [2019-03-28 22:42:19,119 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 17.92/7.90 [2019-03-28 22:42:19,119 INFO L127 ssoRankerPreferences]: Use exernal solver: false 17.92/7.90 [2019-03-28 22:42:19,119 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 17.92/7.90 [2019-03-28 22:42:19,119 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 17.92/7.90 [2019-03-28 22:42:19,119 INFO L130 ssoRankerPreferences]: Path of dumped script: 17.92/7.90 [2019-03-28 22:42:19,119 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop 17.92/7.90 [2019-03-28 22:42:19,119 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 17.92/7.90 [2019-03-28 22:42:19,119 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 17.92/7.90 [2019-03-28 22:42:19,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:19,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:19,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.90 [2019-03-28 22:42:19,182 INFO L300 LassoAnalysis]: Preprocessing complete. 17.92/7.90 [2019-03-28 22:42:19,183 INFO L497 LassoAnalysis]: Using template 'affine'. 17.92/7.90 [2019-03-28 22:42:19,183 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.92/7.90 Termination analysis: LINEAR_WITH_GUESSES 17.92/7.90 Number of strict supporting invariants: 0 17.92/7.90 Number of non-strict supporting invariants: 1 17.92/7.90 Consider only non-deceasing supporting invariants: true 17.92/7.90 Simplify termination arguments: true 17.92/7.90 Simplify supporting invariants: trueOverapproximate stem: false 17.92/7.90 [2019-03-28 22:42:19,184 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.92/7.90 [2019-03-28 22:42:19,184 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.92/7.90 [2019-03-28 22:42:19,184 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.92/7.90 [2019-03-28 22:42:19,184 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.92/7.90 [2019-03-28 22:42:19,186 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 17.92/7.90 [2019-03-28 22:42:19,186 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 17.92/7.91 [2019-03-28 22:42:19,190 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 17.92/7.91 [2019-03-28 22:42:19,191 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.92/7.91 Termination analysis: LINEAR_WITH_GUESSES 17.92/7.91 Number of strict supporting invariants: 0 17.92/7.91 Number of non-strict supporting invariants: 1 17.92/7.91 Consider only non-deceasing supporting invariants: true 17.92/7.91 Simplify termination arguments: true 17.92/7.91 Simplify supporting invariants: trueOverapproximate stem: false 17.92/7.91 [2019-03-28 22:42:19,191 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.92/7.91 [2019-03-28 22:42:19,191 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 17.92/7.91 [2019-03-28 22:42:19,191 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.92/7.91 [2019-03-28 22:42:19,192 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.92/7.91 [2019-03-28 22:42:19,192 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.92/7.91 [2019-03-28 22:42:19,192 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 17.92/7.91 [2019-03-28 22:42:19,193 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 17.92/7.91 [2019-03-28 22:42:19,198 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 17.92/7.91 [2019-03-28 22:42:19,201 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 17.92/7.91 [2019-03-28 22:42:19,201 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. 17.92/7.91 [2019-03-28 22:42:19,201 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 17.92/7.91 [2019-03-28 22:42:19,201 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 17.92/7.91 [2019-03-28 22:42:19,202 INFO L518 LassoAnalysis]: Proved termination. 17.92/7.91 [2019-03-28 22:42:19,202 INFO L520 LassoAnalysis]: Termination argument consisting of: 17.92/7.91 Ranking function f(ULTIMATE.start_main_~a~0) = 2*ULTIMATE.start_main_~a~0 + 1 17.92/7.91 Supporting invariants [] 17.92/7.91 [2019-03-28 22:42:19,202 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 17.92/7.91 [2019-03-28 22:42:19,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.92/7.91 [2019-03-28 22:42:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 17.92/7.91 [2019-03-28 22:42:19,222 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core 17.92/7.91 [2019-03-28 22:42:19,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... 17.92/7.91 [2019-03-28 22:42:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 17.92/7.91 [2019-03-28 22:42:19,227 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core 17.92/7.91 [2019-03-28 22:42:19,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... 17.92/7.91 [2019-03-28 22:42:19,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 17.92/7.91 [2019-03-28 22:42:19,279 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization 17.92/7.91 [2019-03-28 22:42:19,279 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates 17.92/7.91 [2019-03-28 22:42:19,280 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand 3 states. 17.92/7.91 [2019-03-28 22:42:19,317 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 33 states and 49 transitions. Complement of second has 13 states. 17.92/7.91 [2019-03-28 22:42:19,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 2 non-accepting loop states 2 accepting loop states 17.92/7.91 [2019-03-28 22:42:19,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 17.92/7.91 [2019-03-28 22:42:19,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions. 17.92/7.91 [2019-03-28 22:42:19,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 4 letters. Loop has 2 letters. 17.92/7.91 [2019-03-28 22:42:19,319 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.92/7.91 [2019-03-28 22:42:19,319 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 6 letters. Loop has 2 letters. 17.92/7.91 [2019-03-28 22:42:19,319 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.92/7.91 [2019-03-28 22:42:19,320 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 4 letters. Loop has 4 letters. 17.92/7.91 [2019-03-28 22:42:19,320 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.92/7.91 [2019-03-28 22:42:19,322 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 49 transitions. 17.92/7.91 [2019-03-28 22:42:19,323 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 17.92/7.91 [2019-03-28 22:42:19,324 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 11 states and 14 transitions. 17.92/7.91 [2019-03-28 22:42:19,324 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 17.92/7.91 [2019-03-28 22:42:19,324 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 17.92/7.91 [2019-03-28 22:42:19,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. 17.92/7.91 [2019-03-28 22:42:19,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 17.92/7.91 [2019-03-28 22:42:19,325 INFO L706 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. 17.92/7.91 [2019-03-28 22:42:19,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. 17.92/7.91 [2019-03-28 22:42:19,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 7. 17.92/7.91 [2019-03-28 22:42:19,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. 17.92/7.91 [2019-03-28 22:42:19,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. 17.92/7.91 [2019-03-28 22:42:19,326 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. 17.92/7.91 [2019-03-28 22:42:19,326 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. 17.92/7.91 [2019-03-28 22:42:19,326 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ 17.92/7.91 [2019-03-28 22:42:19,326 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. 17.92/7.91 [2019-03-28 22:42:19,327 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 17.92/7.91 [2019-03-28 22:42:19,327 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 17.92/7.91 [2019-03-28 22:42:19,327 INFO L119 BuchiIsEmpty]: Starting construction of run 17.92/7.91 [2019-03-28 22:42:19,327 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] 17.92/7.91 [2019-03-28 22:42:19,327 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] 17.92/7.91 [2019-03-28 22:42:19,328 INFO L794 eck$LassoCheckResult]: Stem: 229#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~a~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0] 230#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~a~0_7 (+ v_ULTIMATE.start_main_~b~0_6 v_ULTIMATE.start_main_~a~0_8)) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 232#L19 [34] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_9 (- v_ULTIMATE.start_main_~b~0_10)) (> 0 v_ULTIMATE.start_main_~b~0_10)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_10} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 235#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~a~0_7 (+ v_ULTIMATE.start_main_~b~0_6 v_ULTIMATE.start_main_~a~0_8)) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 234#L19 17.92/7.91 [2019-03-28 22:42:19,328 INFO L796 eck$LassoCheckResult]: Loop: 234#L19 [29] L19-->L19-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~b~0_8) (= v_ULTIMATE.start_main_~b~0_7 (+ (* (- 1) v_ULTIMATE.start_main_~b~0_8) (- 1)))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 233#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~a~0_7 (+ v_ULTIMATE.start_main_~b~0_6 v_ULTIMATE.start_main_~a~0_8)) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 232#L19 [34] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_9 (- v_ULTIMATE.start_main_~b~0_10)) (> 0 v_ULTIMATE.start_main_~b~0_10)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_10} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 235#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~a~0_7 (+ v_ULTIMATE.start_main_~b~0_6 v_ULTIMATE.start_main_~a~0_8)) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 234#L19 17.92/7.91 [2019-03-28 22:42:19,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.92/7.91 [2019-03-28 22:42:19,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1696286, now seen corresponding path program 3 times 17.92/7.91 [2019-03-28 22:42:19,329 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.92/7.91 [2019-03-28 22:42:19,329 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.92/7.91 [2019-03-28 22:42:19,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.91 [2019-03-28 22:42:19,330 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 17.92/7.91 [2019-03-28 22:42:19,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.91 [2019-03-28 22:42:19,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.91 [2019-03-28 22:42:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.91 [2019-03-28 22:42:19,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.92/7.91 [2019-03-28 22:42:19,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1815450, now seen corresponding path program 1 times 17.92/7.91 [2019-03-28 22:42:19,338 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.92/7.91 [2019-03-28 22:42:19,338 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.92/7.91 [2019-03-28 22:42:19,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.91 [2019-03-28 22:42:19,339 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 17.92/7.91 [2019-03-28 22:42:19,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.91 [2019-03-28 22:42:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.91 [2019-03-28 22:42:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.91 [2019-03-28 22:42:19,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.92/7.91 [2019-03-28 22:42:19,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1106428105, now seen corresponding path program 3 times 17.92/7.91 [2019-03-28 22:42:19,346 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.92/7.91 [2019-03-28 22:42:19,346 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.92/7.91 [2019-03-28 22:42:19,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.91 [2019-03-28 22:42:19,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 17.92/7.91 [2019-03-28 22:42:19,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.92/7.91 [2019-03-28 22:42:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.91 [2019-03-28 22:42:19,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.91 [2019-03-28 22:42:19,400 INFO L216 LassoAnalysis]: Preferences: 17.92/7.91 [2019-03-28 22:42:19,400 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 17.92/7.91 [2019-03-28 22:42:19,400 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 17.92/7.91 [2019-03-28 22:42:19,401 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 17.92/7.91 [2019-03-28 22:42:19,401 INFO L127 ssoRankerPreferences]: Use exernal solver: true 17.92/7.91 [2019-03-28 22:42:19,401 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.92/7.91 [2019-03-28 22:42:19,401 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 17.92/7.91 [2019-03-28 22:42:19,401 INFO L130 ssoRankerPreferences]: Path of dumped script: 17.92/7.91 [2019-03-28 22:42:19,401 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop 17.92/7.91 [2019-03-28 22:42:19,401 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 17.92/7.91 [2019-03-28 22:42:19,402 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 17.92/7.91 [2019-03-28 22:42:19,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.91 [2019-03-28 22:42:19,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.91 [2019-03-28 22:42:19,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.91 [2019-03-28 22:42:19,466 INFO L300 LassoAnalysis]: Preprocessing complete. 17.92/7.91 [2019-03-28 22:42:19,467 INFO L412 LassoAnalysis]: Checking for nontermination... 17.92/7.91 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.92/7.91 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.92/7.91 Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.92/7.91 [2019-03-28 22:42:19,471 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.92/7.91 [2019-03-28 22:42:19,471 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.92/7.91 [2019-03-28 22:42:19,498 INFO L445 LassoAnalysis]: Proved nontermination for one component. 17.92/7.91 [2019-03-28 22:42:19,499 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 17.92/7.91 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.92/7.91 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.92/7.91 Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.92/7.91 [2019-03-28 22:42:19,503 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.92/7.91 [2019-03-28 22:42:19,503 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.92/7.91 [2019-03-28 22:42:19,530 INFO L445 LassoAnalysis]: Proved nontermination for one component. 17.92/7.91 [2019-03-28 22:42:19,530 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 17.92/7.91 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.92/7.91 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.92/7.91 Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.92/7.91 [2019-03-28 22:42:19,534 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.92/7.91 [2019-03-28 22:42:19,534 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.92/7.91 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.92/7.91 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.92/7.91 Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.92/7.91 [2019-03-28 22:42:19,564 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 17.92/7.91 [2019-03-28 22:42:19,564 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.92/7.91 [2019-03-28 22:42:19,824 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 17.92/7.91 [2019-03-28 22:42:19,826 INFO L216 LassoAnalysis]: Preferences: 17.92/7.91 [2019-03-28 22:42:19,826 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 17.92/7.91 [2019-03-28 22:42:19,827 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 17.92/7.91 [2019-03-28 22:42:19,827 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 17.92/7.91 [2019-03-28 22:42:19,827 INFO L127 ssoRankerPreferences]: Use exernal solver: false 17.92/7.91 [2019-03-28 22:42:19,827 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 17.92/7.91 [2019-03-28 22:42:19,827 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 17.92/7.91 [2019-03-28 22:42:19,827 INFO L130 ssoRankerPreferences]: Path of dumped script: 17.92/7.91 [2019-03-28 22:42:19,827 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop 17.92/7.91 [2019-03-28 22:42:19,827 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 17.92/7.91 [2019-03-28 22:42:19,827 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 17.92/7.91 [2019-03-28 22:42:19,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.91 [2019-03-28 22:42:19,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.91 [2019-03-28 22:42:19,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.92/7.91 [2019-03-28 22:42:19,880 INFO L300 LassoAnalysis]: Preprocessing complete. 17.92/7.91 [2019-03-28 22:42:19,880 INFO L497 LassoAnalysis]: Using template 'affine'. 17.92/7.91 [2019-03-28 22:42:19,880 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.92/7.91 Termination analysis: LINEAR_WITH_GUESSES 17.92/7.91 Number of strict supporting invariants: 0 17.92/7.91 Number of non-strict supporting invariants: 1 17.92/7.91 Consider only non-deceasing supporting invariants: true 17.92/7.91 Simplify termination arguments: true 17.92/7.91 Simplify supporting invariants: trueOverapproximate stem: false 17.92/7.91 [2019-03-28 22:42:19,881 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.92/7.91 [2019-03-28 22:42:19,881 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.92/7.91 [2019-03-28 22:42:19,881 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.92/7.91 [2019-03-28 22:42:19,881 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.92/7.91 [2019-03-28 22:42:19,883 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 17.92/7.91 [2019-03-28 22:42:19,883 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 17.92/7.91 [2019-03-28 22:42:19,886 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 17.92/7.91 [2019-03-28 22:42:19,886 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.92/7.91 Termination analysis: LINEAR_WITH_GUESSES 17.92/7.91 Number of strict supporting invariants: 0 17.92/7.91 Number of non-strict supporting invariants: 1 17.92/7.91 Consider only non-deceasing supporting invariants: true 17.92/7.91 Simplify termination arguments: true 17.92/7.91 Simplify supporting invariants: trueOverapproximate stem: false 17.92/7.91 [2019-03-28 22:42:19,887 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.92/7.91 [2019-03-28 22:42:19,887 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.92/7.91 [2019-03-28 22:42:19,887 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.92/7.91 [2019-03-28 22:42:19,887 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.92/7.91 [2019-03-28 22:42:19,889 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 17.92/7.91 [2019-03-28 22:42:19,889 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 17.92/7.91 [2019-03-28 22:42:19,893 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 17.92/7.91 [2019-03-28 22:42:19,893 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.92/7.91 Termination analysis: LINEAR_WITH_GUESSES 17.92/7.91 Number of strict supporting invariants: 0 17.92/7.91 Number of non-strict supporting invariants: 1 17.92/7.91 Consider only non-deceasing supporting invariants: true 17.92/7.91 Simplify termination arguments: true 17.92/7.91 Simplify supporting invariants: trueOverapproximate stem: false 17.92/7.91 [2019-03-28 22:42:19,894 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.92/7.91 [2019-03-28 22:42:19,894 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 17.92/7.91 [2019-03-28 22:42:19,894 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.92/7.91 [2019-03-28 22:42:19,894 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.92/7.91 [2019-03-28 22:42:19,894 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.92/7.91 [2019-03-28 22:42:19,895 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 17.92/7.91 [2019-03-28 22:42:19,895 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 17.92/7.91 [2019-03-28 22:42:19,899 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 17.92/7.91 [2019-03-28 22:42:19,904 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. 17.92/7.91 [2019-03-28 22:42:19,904 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. 17.92/7.91 [2019-03-28 22:42:19,904 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 17.92/7.91 [2019-03-28 22:42:19,904 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 17.92/7.91 [2019-03-28 22:42:19,905 INFO L518 LassoAnalysis]: Proved termination. 17.92/7.91 [2019-03-28 22:42:19,905 INFO L520 LassoAnalysis]: Termination argument consisting of: 17.92/7.91 Ranking function f(ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~a~0) = -1*ULTIMATE.start_main_~b~0 + 1*ULTIMATE.start_main_~a~0 17.92/7.91 Supporting invariants [] 17.92/7.91 [2019-03-28 22:42:19,905 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 17.92/7.91 [2019-03-28 22:42:19,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.92/7.91 [2019-03-28 22:42:19,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 17.92/7.91 [2019-03-28 22:42:19,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core 17.92/7.91 [2019-03-28 22:42:19,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... 17.92/7.91 [2019-03-28 22:42:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 17.92/7.91 [2019-03-28 22:42:19,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core 17.92/7.91 [2019-03-28 22:42:19,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... 17.92/7.91 [2019-03-28 22:42:19,952 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 17.92/7.91 [2019-03-28 22:42:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.91 [2019-03-28 22:42:19,956 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings 17.92/7.91 [2019-03-28 22:42:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.92/7.91 [2019-03-28 22:42:19,960 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings 17.92/7.91 [2019-03-28 22:42:19,961 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization 17.92/7.91 [2019-03-28 22:42:19,961 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates 17.92/7.91 [2019-03-28 22:42:19,961 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand 4 states. 17.92/7.91 [2019-03-28 22:42:19,992 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 18 states and 24 transitions. Complement of second has 8 states. 17.92/7.91 [2019-03-28 22:42:19,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states 17.92/7.91 [2019-03-28 22:42:19,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. 17.92/7.91 [2019-03-28 22:42:19,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. 17.92/7.91 [2019-03-28 22:42:19,993 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 4 letters. Loop has 4 letters. 17.92/7.91 [2019-03-28 22:42:19,993 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.92/7.91 [2019-03-28 22:42:19,993 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 8 letters. Loop has 4 letters. 17.92/7.91 [2019-03-28 22:42:19,994 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.92/7.91 [2019-03-28 22:42:19,994 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 4 letters. Loop has 8 letters. 17.92/7.91 [2019-03-28 22:42:19,995 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.92/7.91 [2019-03-28 22:42:19,996 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 24 transitions. 17.92/7.91 [2019-03-28 22:42:19,996 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 17.92/7.91 [2019-03-28 22:42:19,997 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. 17.92/7.91 [2019-03-28 22:42:19,997 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 17.92/7.91 [2019-03-28 22:42:19,997 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 17.92/7.91 [2019-03-28 22:42:19,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. 17.92/7.91 [2019-03-28 22:42:19,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 17.92/7.91 [2019-03-28 22:42:19,997 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 17.92/7.91 [2019-03-28 22:42:19,997 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 17.92/7.91 [2019-03-28 22:42:19,997 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 17.92/7.91 [2019-03-28 22:42:19,998 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ 17.92/7.91 [2019-03-28 22:42:19,998 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. 17.92/7.91 [2019-03-28 22:42:19,998 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 17.92/7.91 [2019-03-28 22:42:19,998 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true 17.92/7.91 [2019-03-28 22:42:20,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:42:20 BasicIcfg 17.92/7.91 [2019-03-28 22:42:20,004 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 17.92/7.91 [2019-03-28 22:42:20,005 INFO L168 Benchmark]: Toolchain (without parser) took 3522.28 ms. Allocated memory was 649.6 MB in the beginning and 746.6 MB in the end (delta: 97.0 MB). Free memory was 563.9 MB in the beginning and 620.0 MB in the end (delta: -56.2 MB). Peak memory consumption was 40.8 MB. Max. memory is 50.3 GB. 17.92/7.91 [2019-03-28 22:42:20,006 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 591.9 MB. There was no memory consumed. Max. memory is 50.3 GB. 17.92/7.91 [2019-03-28 22:42:20,007 INFO L168 Benchmark]: CACSL2BoogieTranslator took 225.05 ms. Allocated memory is still 649.6 MB. Free memory was 563.9 MB in the beginning and 554.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 50.3 GB. 17.92/7.91 [2019-03-28 22:42:20,007 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.62 ms. Allocated memory was 649.6 MB in the beginning and 670.0 MB in the end (delta: 20.4 MB). Free memory was 554.2 MB in the beginning and 637.7 MB in the end (delta: -83.5 MB). Peak memory consumption was 21.7 MB. Max. memory is 50.3 GB. 17.92/7.91 [2019-03-28 22:42:20,008 INFO L168 Benchmark]: Boogie Preprocessor took 19.94 ms. Allocated memory is still 670.0 MB. Free memory was 637.7 MB in the beginning and 634.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. 17.92/7.91 [2019-03-28 22:42:20,008 INFO L168 Benchmark]: RCFGBuilder took 196.90 ms. Allocated memory is still 670.0 MB. Free memory was 634.6 MB in the beginning and 621.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 50.3 GB. 17.92/7.91 [2019-03-28 22:42:20,009 INFO L168 Benchmark]: BlockEncodingV2 took 76.75 ms. Allocated memory is still 670.0 MB. Free memory was 621.6 MB in the beginning and 616.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 17.92/7.91 [2019-03-28 22:42:20,009 INFO L168 Benchmark]: TraceAbstraction took 154.69 ms. Allocated memory is still 670.0 MB. Free memory was 616.2 MB in the beginning and 607.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 50.3 GB. 17.92/7.91 [2019-03-28 22:42:20,010 INFO L168 Benchmark]: BuchiAutomizer took 2748.15 ms. Allocated memory was 670.0 MB in the beginning and 746.6 MB in the end (delta: 76.5 MB). Free memory was 605.7 MB in the beginning and 620.0 MB in the end (delta: -14.4 MB). Peak memory consumption was 62.2 MB. Max. memory is 50.3 GB. 17.92/7.91 [2019-03-28 22:42:20,014 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 17.92/7.91 --- Results --- 17.92/7.91 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 17.92/7.91 - StatisticsResult: Initial Icfg 17.92/7.91 7 locations, 9 edges 17.92/7.91 - StatisticsResult: Encoded RCFG 17.92/7.91 3 locations, 4 edges 17.92/7.91 * Results from de.uni_freiburg.informatik.ultimate.core: 17.92/7.91 - StatisticsResult: Toolchain Benchmarks 17.92/7.91 Benchmark results are: 17.92/7.91 * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 591.9 MB. There was no memory consumed. Max. memory is 50.3 GB. 17.92/7.91 * CACSL2BoogieTranslator took 225.05 ms. Allocated memory is still 649.6 MB. Free memory was 563.9 MB in the beginning and 554.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 50.3 GB. 17.92/7.91 * Boogie Procedure Inliner took 95.62 ms. Allocated memory was 649.6 MB in the beginning and 670.0 MB in the end (delta: 20.4 MB). Free memory was 554.2 MB in the beginning and 637.7 MB in the end (delta: -83.5 MB). Peak memory consumption was 21.7 MB. Max. memory is 50.3 GB. 17.92/7.91 * Boogie Preprocessor took 19.94 ms. Allocated memory is still 670.0 MB. Free memory was 637.7 MB in the beginning and 634.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. 17.92/7.91 * RCFGBuilder took 196.90 ms. Allocated memory is still 670.0 MB. Free memory was 634.6 MB in the beginning and 621.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 50.3 GB. 17.92/7.91 * BlockEncodingV2 took 76.75 ms. Allocated memory is still 670.0 MB. Free memory was 621.6 MB in the beginning and 616.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 17.92/7.91 * TraceAbstraction took 154.69 ms. Allocated memory is still 670.0 MB. Free memory was 616.2 MB in the beginning and 607.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 50.3 GB. 17.92/7.91 * BuchiAutomizer took 2748.15 ms. Allocated memory was 670.0 MB in the beginning and 746.6 MB in the end (delta: 76.5 MB). Free memory was 605.7 MB in the beginning and 620.0 MB in the end (delta: -14.4 MB). Peak memory consumption was 62.2 MB. Max. memory is 50.3 GB. 17.92/7.91 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 17.92/7.91 - AllSpecificationsHoldResult: All specifications hold 17.92/7.91 We were not able to verify any specifiation because the program does not contain any specification. 17.92/7.91 - InvariantResult [Line: 17]: Loop Invariant 17.92/7.91 Derived loop invariant: 1 17.92/7.91 - StatisticsResult: Ultimate Automizer benchmark data 17.92/7.91 CFG has 1 procedures, 3 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available 17.92/7.91 - StatisticsResult: Constructed decomposition of program 17.92/7.91 Your program was decomposed into 5 terminating modules (0 trivial, 0 deterministic, 5 nondeterministic). One nondeterministic module has affine ranking function -1 * b and consists of 3 locations. One nondeterministic module has affine ranking function -1 * b and consists of 3 locations. One nondeterministic module has affine ranking function 2 * b + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * a + 1 and consists of 6 locations. One nondeterministic module has affine ranking function -1 * b + a and consists of 5 locations. 17.92/7.91 - StatisticsResult: Timing statistics 17.92/7.91 BüchiAutomizer plugin needed 2.7s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 3. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/2 HoareTripleCheckerStatistics: 16 SDtfs, 26 SDslu, 2 SDs, 0 SdLazy, 49 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax163 hnf100 lsp61 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf93 smp100 dnf100 smp100 tf106 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s 17.92/7.91 - TerminationAnalysisResult: Termination proven 17.92/7.91 Buchi Automizer proved that your program is terminating 17.92/7.91 RESULT: Ultimate proved your program to be correct! 17.92/7.91 !SESSION 2019-03-28 22:42:13.188 ----------------------------------------------- 17.92/7.91 eclipse.buildId=unknown 17.92/7.91 java.version=1.8.0_181 17.92/7.91 java.vendor=Oracle Corporation 17.92/7.91 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 17.92/7.91 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 17.92/7.91 Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c 17.92/7.91 17.92/7.91 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 22:42:20.247 17.92/7.91 !MESSAGE The workspace will exit with unsaved changes in this session. 17.92/7.91 Received shutdown request... 17.92/7.91 Ultimate: 17.92/7.91 GTK+ Version Check 17.92/7.91 EOF