YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 05:54:11,040 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 05:54:11,042 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 05:54:11,054 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 05:54:11,054 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 05:54:11,055 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 05:54:11,056 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 05:54:11,057 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 05:54:11,059 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 05:54:11,060 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 05:54:11,060 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 05:54:11,061 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 05:54:11,061 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 05:54:11,062 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 05:54:11,063 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 05:54:11,064 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 05:54:11,065 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 05:54:11,066 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 05:54:11,068 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 05:54:11,070 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 05:54:11,071 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 05:54:11,072 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 05:54:11,074 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 05:54:11,074 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 05:54:11,074 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 05:54:11,075 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 05:54:11,075 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 05:54:11,076 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 05:54:11,076 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 05:54:11,077 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 05:54:11,078 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 05:54:11,078 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 05:54:11,079 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 05:54:11,079 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 05:54:11,080 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 05:54:11,080 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 05:54:11,080 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 05:54:11,081 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 05:54:11,082 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 05:54:11,082 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 05:54:11,096 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 05:54:11,096 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 05:54:11,097 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 05:54:11,098 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 05:54:11,098 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 05:54:11,098 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 05:54:11,098 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 05:54:11,098 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 05:54:11,098 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 05:54:11,099 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 05:54:11,099 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 05:54:11,099 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 05:54:11,099 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 05:54:11,099 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 05:54:11,099 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:54:11,100 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 05:54:11,100 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 05:54:11,100 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 05:54:11,100 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 05:54:11,100 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 05:54:11,100 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 05:54:11,101 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 05:54:11,101 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 05:54:11,101 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 05:54:11,101 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 05:54:11,101 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 05:54:11,101 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 05:54:11,101 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 05:54:11,102 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 05:54:11,127 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 05:54:11,141 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 05:54:11,144 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 05:54:11,146 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 05:54:11,146 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 05:54:11,147 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 05:54:11,332 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/9063278109a04165a0512ae344dddd76/FLAGc518c1535 [2020-06-22 05:54:11,669 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 05:54:11,669 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 05:54:11,676 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/9063278109a04165a0512ae344dddd76/FLAGc518c1535 [2020-06-22 05:54:12,095 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/9063278109a04165a0512ae344dddd76 [2020-06-22 05:54:12,107 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 05:54:12,109 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 05:54:12,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 05:54:12,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 05:54:12,114 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 05:54:12,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 05:54:12" (1/1) ... [2020-06-22 05:54:12,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e127e75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:54:12, skipping insertion in model container [2020-06-22 05:54:12,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 05:54:12" (1/1) ... [2020-06-22 05:54:12,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 05:54:12,143 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 05:54:12,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 05:54:12,302 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 05:54:12,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 05:54:12,386 INFO L195 MainTranslator]: Completed translation [2020-06-22 05:54:12,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:54:12 WrapperNode [2020-06-22 05:54:12,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 05:54:12,388 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 05:54:12,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 05:54:12,388 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 05:54:12,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:54:12" (1/1) ... [2020-06-22 05:54:12,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:54:12" (1/1) ... [2020-06-22 05:54:12,423 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 05:54:12,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 05:54:12,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 05:54:12,423 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 05:54:12,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:54:12" (1/1) ... [2020-06-22 05:54:12,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:54:12" (1/1) ... [2020-06-22 05:54:12,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:54:12" (1/1) ... [2020-06-22 05:54:12,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:54:12" (1/1) ... [2020-06-22 05:54:12,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:54:12" (1/1) ... [2020-06-22 05:54:12,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:54:12" (1/1) ... [2020-06-22 05:54:12,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:54:12" (1/1) ... [2020-06-22 05:54:12,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 05:54:12,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 05:54:12,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 05:54:12,444 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 05:54:12,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:54:12" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 05:54:12,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 05:54:12,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 05:54:12,637 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 05:54:12,638 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 05:54:12,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:54:12 BoogieIcfgContainer [2020-06-22 05:54:12,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 05:54:12,640 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 05:54:12,640 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 05:54:12,642 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 05:54:12,642 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:54:12" (1/1) ... [2020-06-22 05:54:12,656 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2020-06-22 05:54:12,658 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 05:54:12,659 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 05:54:12,659 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 05:54:12,660 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 05:54:12,661 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 05:54:12,662 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 05:54:12,662 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 05:54:12,677 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 05:54:12,691 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 05:54:12,695 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 05:54:12,697 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 05:54:12,709 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 05:54:12,711 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 05:54:12,713 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 05:54:12,713 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 05:54:12,713 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 05:54:12,714 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 05:54:12,714 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 8 edges [2020-06-22 05:54:12,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:54:12 BasicIcfg [2020-06-22 05:54:12,715 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 05:54:12,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 05:54:12,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 05:54:12,719 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 05:54:12,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 05:54:12" (1/4) ... [2020-06-22 05:54:12,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370ee68b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:54:12, skipping insertion in model container [2020-06-22 05:54:12,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:54:12" (2/4) ... [2020-06-22 05:54:12,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370ee68b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:54:12, skipping insertion in model container [2020-06-22 05:54:12,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:54:12" (3/4) ... [2020-06-22 05:54:12,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370ee68b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:54:12, skipping insertion in model container [2020-06-22 05:54:12,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:54:12" (4/4) ... [2020-06-22 05:54:12,722 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 05:54:12,733 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 05:54:12,740 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 05:54:12,757 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 05:54:12,784 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 05:54:12,785 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 05:54:12,785 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 05:54:12,785 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 05:54:12,785 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 05:54:12,785 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 05:54:12,785 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 05:54:12,785 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 05:54:12,786 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 05:54:12,801 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-06-22 05:54:12,806 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 05:54:12,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-06-22 05:54:12,859 INFO L448 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. [2020-06-22 05:54:12,859 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 05:54:12,859 INFO L448 ceAbstractionStarter]: For program point L15-2(lines 12 20) no Hoare annotation was computed. [2020-06-22 05:54:12,859 INFO L448 ceAbstractionStarter]: For program point L12(lines 12 20) no Hoare annotation was computed. [2020-06-22 05:54:12,860 INFO L451 ceAbstractionStarter]: At program point L11-2(lines 11 22) the Hoare annotation is: true [2020-06-22 05:54:12,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:54:12 BasicIcfg [2020-06-22 05:54:12,868 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 05:54:12,868 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 05:54:12,869 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 05:54:12,872 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 05:54:12,872 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:54:12,873 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 05:54:12" (1/5) ... [2020-06-22 05:54:12,873 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52e8c688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 05:54:12, skipping insertion in model container [2020-06-22 05:54:12,873 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:54:12,874 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:54:12" (2/5) ... [2020-06-22 05:54:12,874 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52e8c688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 05:54:12, skipping insertion in model container [2020-06-22 05:54:12,874 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:54:12,874 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:54:12" (3/5) ... [2020-06-22 05:54:12,875 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52e8c688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:54:12, skipping insertion in model container [2020-06-22 05:54:12,875 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:54:12,875 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:54:12" (4/5) ... [2020-06-22 05:54:12,875 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52e8c688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:54:12, skipping insertion in model container [2020-06-22 05:54:12,875 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:54:12,875 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:54:12" (5/5) ... [2020-06-22 05:54:12,877 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 05:54:12,902 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 05:54:12,903 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 05:54:12,903 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 05:54:12,903 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 05:54:12,903 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 05:54:12,903 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 05:54:12,903 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 05:54:12,903 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 05:54:12,904 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 05:54:12,907 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-06-22 05:54:12,924 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 05:54:12,924 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:54:12,924 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:54:12,931 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 05:54:12,931 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 05:54:12,931 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 05:54:12,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-06-22 05:54:12,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 05:54:12,932 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:54:12,932 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:54:12,932 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 05:54:12,932 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 05:54:12,937 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [32] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 7#L11-2true [2020-06-22 05:54:12,938 INFO L796 eck$LassoCheckResult]: Loop: 7#L11-2true [41] L11-2-->L12: Formula: (< 0 (+ v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~y~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[] 5#L12true [33] L12-->L15-2: Formula: (and (< v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_12) (= v_ULTIMATE.start_main_~x~0_11 (+ v_ULTIMATE.start_main_~x~0_12 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 6#L15-2true [36] L15-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 7#L11-2true [2020-06-22 05:54:12,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:54:12,944 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times [2020-06-22 05:54:12,946 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:54:12,947 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:54:12,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:54:12,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:54:12,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:54:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:54:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:54:13,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:54:13,014 INFO L82 PathProgramCache]: Analyzing trace with hash 70251, now seen corresponding path program 1 times [2020-06-22 05:54:13,014 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:54:13,015 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:54:13,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:54:13,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:54:13,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:54:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:54:13,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:54:13,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:54:13,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1917293, now seen corresponding path program 1 times [2020-06-22 05:54:13,029 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:54:13,030 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:54:13,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:54:13,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:54:13,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:54:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:54:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:54:13,093 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:54:13,094 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:54:13,094 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:54:13,094 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:54:13,095 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:54:13,095 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:54:13,095 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:54:13,095 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:54:13,095 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 05:54:13,095 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:54:13,096 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:54:13,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:54:13,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:54:13,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:54:13,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:54:13,250 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:54:13,251 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:54:13,258 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:54:13,259 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:54:13,291 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:54:13,291 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: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:54:13,299 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:54:13,300 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:54:13,328 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:54:13,328 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: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:54:13,334 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:54:13,334 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:54:13,364 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:54:13,364 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:54:13,398 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:54:13,398 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=-1}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [4, 3, 1] Nus: [0, 1] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:54:13,425 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:54:13,425 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:54:13,457 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:54:13,457 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:54:13,597 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 05:54:13,600 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:54:13,600 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:54:13,600 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:54:13,600 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:54:13,600 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 05:54:13,600 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 05:54:13,601 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:54:13,601 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:54:13,601 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 05:54:13,601 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:54:13,601 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:54:13,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:54:13,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:54:13,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:54:13,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:54:13,723 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:54:13,728 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 05:54:13,730 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:54:13,732 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:54:13,732 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:54:13,732 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:54:13,732 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:54:13,738 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:54:13,738 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:54:13,747 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:54:13,747 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:54:13,748 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:54:13,748 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:54:13,749 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:54:13,749 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:54:13,751 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:54:13,751 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:54:13,759 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:54:13,760 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:54:13,761 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:54:13,761 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:54:13,761 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:54:13,762 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:54:13,762 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:54:13,762 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:54:13,763 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:54:13,767 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:54:13,767 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:54:13,768 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:54:13,768 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:54:13,768 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:54:13,769 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:54:13,769 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:54:13,769 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:54:13,770 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:54:13,777 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 05:54:13,783 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 05:54:13,783 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2020-06-22 05:54:13,786 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 05:54:13,786 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 05:54:13,786 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 05:54:13,787 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-06-22 05:54:13,788 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 05:54:13,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:54:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:54:13,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 05:54:13,822 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:54:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:54:13,832 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 05:54:13,832 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:54:13,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 05:54:13,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:54:13,924 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 05:54:13,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:54:13,933 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-06-22 05:54:13,939 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 4 loop predicates [2020-06-22 05:54:13,941 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states. Second operand 4 states. [2020-06-22 05:54:14,075 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states.. Second operand 4 states. Result 24 states and 35 transitions. Complement of second has 11 states. [2020-06-22 05:54:14,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 2 accepting loop states [2020-06-22 05:54:14,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 05:54:14,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 27 transitions. [2020-06-22 05:54:14,081 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 27 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 05:54:14,082 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:54:14,082 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 27 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 05:54:14,083 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:54:14,083 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 27 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 05:54:14,083 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:54:14,090 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 35 transitions. [2020-06-22 05:54:14,091 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-06-22 05:54:14,096 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 35 transitions. [2020-06-22 05:54:14,097 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-06-22 05:54:14,097 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-06-22 05:54:14,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 35 transitions. [2020-06-22 05:54:14,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 05:54:14,099 INFO L706 BuchiCegarLoop]: Abstraction has 24 states and 35 transitions. [2020-06-22 05:54:14,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 35 transitions. [2020-06-22 05:54:14,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 11. [2020-06-22 05:54:14,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-06-22 05:54:14,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 17 transitions. [2020-06-22 05:54:14,130 INFO L729 BuchiCegarLoop]: Abstraction has 11 states and 17 transitions. [2020-06-22 05:54:14,130 INFO L609 BuchiCegarLoop]: Abstraction has 11 states and 17 transitions. [2020-06-22 05:54:14,130 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 05:54:14,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 17 transitions. [2020-06-22 05:54:14,131 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 05:54:14,131 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:54:14,131 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:54:14,131 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 05:54:14,132 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-22 05:54:14,132 INFO L794 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 96#L11-2 [41] L11-2-->L12: Formula: (< 0 (+ v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~y~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[] 97#L12 [2020-06-22 05:54:14,133 INFO L796 eck$LassoCheckResult]: Loop: 97#L12 [43] L12-->L15: Formula: (>= v_ULTIMATE.start_main_~y~0_12 v_ULTIMATE.start_main_~x~0_13) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} AuxVars[] AssignedVars[] 90#L15 [45] L15-->L15-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (> v_ULTIMATE.start_main_~x~0_8 v_ULTIMATE.start_main_~y~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 91#L15-2 [36] L15-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 99#L11-2 [41] L11-2-->L12: Formula: (< 0 (+ v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~y~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[] 97#L12 [2020-06-22 05:54:14,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:54:14,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1994, now seen corresponding path program 1 times [2020-06-22 05:54:14,133 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:54:14,133 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:54:14,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:54:14,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:54:14,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:54:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:54:14,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:54:14,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:54:14,142 INFO L82 PathProgramCache]: Analyzing trace with hash 2248936, now seen corresponding path program 1 times [2020-06-22 05:54:14,142 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:54:14,142 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:54:14,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:54:14,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:54:14,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:54:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:54:14,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 05:54:14,179 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 05:54:14,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 05:54:14,181 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 05:54:14,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 05:54:14,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 05:54:14,185 INFO L87 Difference]: Start difference. First operand 11 states and 17 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-06-22 05:54:14,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 05:54:14,207 INFO L93 Difference]: Finished difference Result 16 states and 21 transitions. [2020-06-22 05:54:14,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 05:54:14,210 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 21 transitions. [2020-06-22 05:54:14,211 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 05:54:14,211 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 21 transitions. [2020-06-22 05:54:14,212 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-06-22 05:54:14,212 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-06-22 05:54:14,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2020-06-22 05:54:14,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 05:54:14,212 INFO L706 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-06-22 05:54:14,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2020-06-22 05:54:14,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2020-06-22 05:54:14,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-06-22 05:54:14,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2020-06-22 05:54:14,214 INFO L729 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2020-06-22 05:54:14,214 INFO L609 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2020-06-22 05:54:14,214 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 05:54:14,215 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 19 transitions. [2020-06-22 05:54:14,215 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 05:54:14,215 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:54:14,215 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:54:14,216 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 05:54:14,216 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-22 05:54:14,217 INFO L794 eck$LassoCheckResult]: Stem: 128#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 129#L11-2 [41] L11-2-->L12: Formula: (< 0 (+ v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~y~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[] 130#L12 [2020-06-22 05:54:14,217 INFO L796 eck$LassoCheckResult]: Loop: 130#L12 [43] L12-->L15: Formula: (>= v_ULTIMATE.start_main_~y~0_12 v_ULTIMATE.start_main_~x~0_13) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} AuxVars[] AssignedVars[] 123#L15 [46] L15-->L15-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (< v_ULTIMATE.start_main_~x~0_8 v_ULTIMATE.start_main_~y~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 124#L15-2 [36] L15-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 132#L11-2 [41] L11-2-->L12: Formula: (< 0 (+ v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~y~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[] 130#L12 [2020-06-22 05:54:14,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:54:14,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1994, now seen corresponding path program 2 times [2020-06-22 05:54:14,217 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:54:14,218 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:54:14,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:54:14,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:54:14,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:54:14,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:54:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:54:14,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:54:14,225 INFO L82 PathProgramCache]: Analyzing trace with hash 2249897, now seen corresponding path program 1 times [2020-06-22 05:54:14,225 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:54:14,225 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:54:14,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:54:14,227 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 05:54:14,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:54:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:54:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:54:14,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:54:14,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1842827250, now seen corresponding path program 1 times [2020-06-22 05:54:14,240 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:54:14,240 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:54:14,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:54:14,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:54:14,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:54:14,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:54:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:54:14,286 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:54:14,287 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:54:14,287 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:54:14,287 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:54:14,287 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:54:14,287 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:54:14,287 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:54:14,288 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:54:14,288 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 05:54:14,288 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:54:14,288 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:54:14,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:54:14,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:54:14,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:54:14,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:54:14,393 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:54:14,421 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:54:14,426 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:54:14,426 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:54:14,456 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:54:14,456 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: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-06-22 05:54:14,461 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:54:14,462 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:54:14,489 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:54:14,490 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: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:54:14,497 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:54:14,497 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:54:14,530 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:54:14,530 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:54:14,564 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:54:14,564 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=-1}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [4, 3, 1] Nus: [0, 1] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:54:14,593 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:54:14,593 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:54:14,624 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:54:14,624 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:54:14,773 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 05:54:14,775 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:54:14,775 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:54:14,775 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:54:14,775 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:54:14,776 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 05:54:14,776 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 05:54:14,776 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:54:14,776 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:54:14,776 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 05:54:14,776 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:54:14,776 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:54:14,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:54:14,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:54:14,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:54:14,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:54:14,845 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:54:14,846 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 05:54:14,846 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:54:14,847 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:54:14,847 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:54:14,847 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:54:14,847 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:54:14,849 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:54:14,849 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:54:14,852 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:54:14,853 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:54:14,853 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:54:14,854 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:54:14,854 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:54:14,854 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:54:14,856 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:54:14,856 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:54:14,861 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:54:14,861 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:54:14,862 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:54:14,862 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:54:14,862 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:54:14,862 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:54:14,862 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:54:14,863 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:54:14,863 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:54:14,866 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:54:14,866 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:54:14,867 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:54:14,867 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:54:14,867 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:54:14,867 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:54:14,868 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:54:14,868 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:54:14,868 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:54:14,872 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 05:54:14,878 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 05:54:14,878 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2020-06-22 05:54:14,878 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 05:54:14,879 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 05:54:14,879 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 05:54:14,879 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-06-22 05:54:14,879 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 05:54:14,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:54:14,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:54:14,900 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 05:54:14,900 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:54:14,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:54:14,905 WARN L254 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 05:54:14,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:54:14,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 05:54:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:54:14,971 WARN L254 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 05:54:14,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:54:15,028 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 6 predicates after loop cannibalization [2020-06-22 05:54:15,028 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 6 loop predicates [2020-06-22 05:54:15,029 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 14 states and 19 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-06-22 05:54:15,146 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 14 states and 19 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 34 states and 47 transitions. Complement of second has 13 states. [2020-06-22 05:54:15,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 2 accepting loop states [2020-06-22 05:54:15,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 05:54:15,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2020-06-22 05:54:15,147 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 05:54:15,148 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:54:15,148 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2020-06-22 05:54:15,148 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:54:15,149 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 2 letters. Loop has 8 letters. [2020-06-22 05:54:15,149 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:54:15,151 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 47 transitions. [2020-06-22 05:54:15,153 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 05:54:15,153 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 0 states and 0 transitions. [2020-06-22 05:54:15,166 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 05:54:15,166 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 05:54:15,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 05:54:15,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 05:54:15,167 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:54:15,167 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:54:15,167 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:54:15,167 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 05:54:15,167 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 05:54:15,167 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 05:54:15,168 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 05:54:15,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:54:15 BasicIcfg [2020-06-22 05:54:15,175 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 05:54:15,176 INFO L168 Benchmark]: Toolchain (without parser) took 3068.21 ms. Allocated memory was 649.6 MB in the beginning and 763.4 MB in the end (delta: 113.8 MB). Free memory was 560.3 MB in the beginning and 718.9 MB in the end (delta: -158.7 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 05:54:15,177 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 580.5 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 05:54:15,178 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.89 ms. Allocated memory was 649.6 MB in the beginning and 697.8 MB in the end (delta: 48.2 MB). Free memory was 558.9 MB in the beginning and 665.3 MB in the end (delta: -106.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 50.3 GB. [2020-06-22 05:54:15,178 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.81 ms. Allocated memory is still 697.8 MB. Free memory was 665.3 MB in the beginning and 663.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 05:54:15,179 INFO L168 Benchmark]: Boogie Preprocessor took 20.01 ms. Allocated memory is still 697.8 MB. Free memory was 663.9 MB in the beginning and 660.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. [2020-06-22 05:54:15,180 INFO L168 Benchmark]: RCFGBuilder took 195.90 ms. Allocated memory is still 697.8 MB. Free memory was 660.8 MB in the beginning and 646.8 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 50.3 GB. [2020-06-22 05:54:15,180 INFO L168 Benchmark]: BlockEncodingV2 took 75.00 ms. Allocated memory is still 697.8 MB. Free memory was 646.8 MB in the beginning and 641.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 05:54:15,181 INFO L168 Benchmark]: TraceAbstraction took 152.35 ms. Allocated memory is still 697.8 MB. Free memory was 641.4 MB in the beginning and 632.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. [2020-06-22 05:54:15,181 INFO L168 Benchmark]: BuchiAutomizer took 2306.93 ms. Allocated memory was 697.8 MB in the beginning and 763.4 MB in the end (delta: 65.5 MB). Free memory was 632.0 MB in the beginning and 718.9 MB in the end (delta: -87.0 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 05:54:15,186 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 12 edges - StatisticsResult: Encoded RCFG 5 locations, 8 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 580.5 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 277.89 ms. Allocated memory was 649.6 MB in the beginning and 697.8 MB in the end (delta: 48.2 MB). Free memory was 558.9 MB in the beginning and 665.3 MB in the end (delta: -106.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.81 ms. Allocated memory is still 697.8 MB. Free memory was 665.3 MB in the beginning and 663.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.01 ms. Allocated memory is still 697.8 MB. Free memory was 663.9 MB in the beginning and 660.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 195.90 ms. Allocated memory is still 697.8 MB. Free memory was 660.8 MB in the beginning and 646.8 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 75.00 ms. Allocated memory is still 697.8 MB. Free memory was 646.8 MB in the beginning and 641.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 152.35 ms. Allocated memory is still 697.8 MB. Free memory was 641.4 MB in the beginning and 632.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2306.93 ms. Allocated memory was 697.8 MB in the beginning and 763.4 MB in the end (delta: 65.5 MB). Free memory was 632.0 MB in the beginning and 718.9 MB in the end (delta: -87.0 MB). There was no memory consumed. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function x and consists of 7 locations. One nondeterministic module has affine ranking function y and consists of 7 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 14 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 21 SDtfs, 35 SDslu, 23 SDs, 0 SdLazy, 88 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax160 hnf100 lsp46 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq139 hnf95 smp100 dnf100 smp100 tf110 neg100 sie118 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 05:54:08.526 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 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 !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 05:54:15.417 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check