YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 02:06:41,205 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 02:06:41,207 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 02:06:41,218 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 02:06:41,219 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 02:06:41,220 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 02:06:41,221 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 02:06:41,222 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 02:06:41,224 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 02:06:41,225 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 02:06:41,225 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 02:06:41,226 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 02:06:41,226 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 02:06:41,227 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 02:06:41,228 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 02:06:41,229 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 02:06:41,230 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 02:06:41,232 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 02:06:41,233 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 02:06:41,235 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 02:06:41,236 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 02:06:41,237 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 02:06:41,239 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 02:06:41,239 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 02:06:41,239 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 02:06:41,240 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 02:06:41,240 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 02:06:41,241 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 02:06:41,242 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 02:06:41,242 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 02:06:41,243 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 02:06:41,244 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 02:06:41,244 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 02:06:41,245 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 02:06:41,246 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 02:06:41,246 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 02:06:41,246 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 02:06:41,247 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 02:06:41,248 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 02:06:41,248 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 02:06:41,262 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 02:06:41,262 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 02:06:41,263 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 02:06:41,263 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 02:06:41,264 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 02:06:41,264 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 02:06:41,264 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 02:06:41,264 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 02:06:41,264 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 02:06:41,265 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 02:06:41,265 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 02:06:41,265 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 02:06:41,265 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 02:06:41,265 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 02:06:41,265 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:06:41,265 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 02:06:41,266 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 02:06:41,266 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 02:06:41,266 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 02:06:41,266 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 02:06:41,266 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 02:06:41,267 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 02:06:41,267 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 02:06:41,267 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 02:06:41,267 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 02:06:41,267 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 02:06:41,267 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 02:06:41,267 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 02:06:41,268 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 02:06:41,292 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 02:06:41,305 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 02:06:41,309 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 02:06:41,310 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 02:06:41,310 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 02:06:41,311 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 02:06:41,383 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/04b2a9a76c564768bd85fab67f2e958d/FLAGd8da0e602 [2020-06-22 02:06:41,711 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 02:06:41,712 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 02:06:41,718 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/04b2a9a76c564768bd85fab67f2e958d/FLAGd8da0e602 [2020-06-22 02:06:42,121 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/04b2a9a76c564768bd85fab67f2e958d [2020-06-22 02:06:42,132 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 02:06:42,134 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 02:06:42,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 02:06:42,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 02:06:42,139 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 02:06:42,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 02:06:42" (1/1) ... [2020-06-22 02:06:42,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@520452e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:06:42, skipping insertion in model container [2020-06-22 02:06:42,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 02:06:42" (1/1) ... [2020-06-22 02:06:42,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 02:06:42,169 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 02:06:42,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 02:06:42,331 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 02:06:42,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 02:06:42,433 INFO L195 MainTranslator]: Completed translation [2020-06-22 02:06:42,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:06:42 WrapperNode [2020-06-22 02:06:42,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 02:06:42,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 02:06:42,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 02:06:42,435 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 02:06:42,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:06:42" (1/1) ... [2020-06-22 02:06:42,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:06:42" (1/1) ... [2020-06-22 02:06:42,468 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 02:06:42,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 02:06:42,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 02:06:42,469 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 02:06:42,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:06:42" (1/1) ... [2020-06-22 02:06:42,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:06:42" (1/1) ... [2020-06-22 02:06:42,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:06:42" (1/1) ... [2020-06-22 02:06:42,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:06:42" (1/1) ... [2020-06-22 02:06:42,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:06:42" (1/1) ... [2020-06-22 02:06:42,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:06:42" (1/1) ... [2020-06-22 02:06:42,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:06:42" (1/1) ... [2020-06-22 02:06:42,487 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 02:06:42,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 02:06:42,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 02:06:42,488 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 02:06:42,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:06:42" (1/1) ... No working directory specified, using /export/starexec/sandbox2/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 02:06:42,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 02:06:42,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 02:06:42,685 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 02:06:42,686 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2020-06-22 02:06:42,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:06:42 BoogieIcfgContainer [2020-06-22 02:06:42,687 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 02:06:42,688 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 02:06:42,688 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 02:06:42,690 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 02:06:42,690 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:06:42" (1/1) ... [2020-06-22 02:06:42,706 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-06-22 02:06:42,707 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 02:06:42,708 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 02:06:42,709 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 02:06:42,709 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 02:06:42,711 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 02:06:42,712 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 02:06:42,712 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 02:06:42,726 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 02:06:42,733 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 02:06:42,738 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-06-22 02:06:42,740 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 02:06:42,755 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-06-22 02:06:42,758 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 02:06:42,759 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 02:06:42,759 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 02:06:42,759 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 02:06:42,760 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 02:06:42,760 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-06-22 02:06:42,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:06:42 BasicIcfg [2020-06-22 02:06:42,761 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 02:06:42,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 02:06:42,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 02:06:42,765 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 02:06:42,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 02:06:42" (1/4) ... [2020-06-22 02:06:42,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f09af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:06:42, skipping insertion in model container [2020-06-22 02:06:42,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:06:42" (2/4) ... [2020-06-22 02:06:42,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f09af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:06:42, skipping insertion in model container [2020-06-22 02:06:42,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:06:42" (3/4) ... [2020-06-22 02:06:42,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f09af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:06:42, skipping insertion in model container [2020-06-22 02:06:42,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:06:42" (4/4) ... [2020-06-22 02:06:42,769 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 02:06:42,778 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 02:06:42,786 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 02:06:42,803 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 02:06:42,832 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 02:06:42,833 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 02:06:42,833 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 02:06:42,833 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 02:06:42,833 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 02:06:42,833 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 02:06:42,833 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 02:06:42,834 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 02:06:42,834 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 02:06:42,847 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 02:06:42,853 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 02:06:42,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 02:06:42,906 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 02:06:42,907 INFO L451 ceAbstractionStarter]: At program point L13-2(lines 13 16) the Hoare annotation is: true [2020-06-22 02:06:42,907 INFO L451 ceAbstractionStarter]: At program point L11-2(lines 11 18) the Hoare annotation is: true [2020-06-22 02:06:42,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:06:42 BasicIcfg [2020-06-22 02:06:42,915 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 02:06:42,916 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 02:06:42,916 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 02:06:42,919 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 02:06:42,920 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:06:42,921 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 02:06:42" (1/5) ... [2020-06-22 02:06:42,921 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@aab47b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 02:06:42, skipping insertion in model container [2020-06-22 02:06:42,922 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:06:42,922 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:06:42" (2/5) ... [2020-06-22 02:06:42,922 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@aab47b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 02:06:42, skipping insertion in model container [2020-06-22 02:06:42,922 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:06:42,922 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:06:42" (3/5) ... [2020-06-22 02:06:42,923 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@aab47b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:06:42, skipping insertion in model container [2020-06-22 02:06:42,923 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:06:42,923 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:06:42" (4/5) ... [2020-06-22 02:06:42,924 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@aab47b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:06:42, skipping insertion in model container [2020-06-22 02:06:42,924 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:06:42,924 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:06:42" (5/5) ... [2020-06-22 02:06:42,925 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 02:06:42,952 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 02:06:42,952 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 02:06:42,952 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 02:06:42,952 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 02:06:42,953 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 02:06:42,953 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 02:06:42,953 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 02:06:42,953 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 02:06:42,953 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 02:06:42,957 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 02:06:42,973 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 02:06:42,974 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:06:42,974 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:06:42,979 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 02:06:42,979 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 02:06:42,979 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 02:06:42,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 02:06:42,980 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 02:06:42,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:06:42,980 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:06:42,981 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 02:06:42,981 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 02:06:42,986 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [32] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 5#L11-2true [2020-06-22 02:06:42,986 INFO L796 eck$LassoCheckResult]: Loop: 5#L11-2true [41] L11-2-->L13-2: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_11) (= v_ULTIMATE.start_main_~y~0_9 0)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 4#L13-2true [45] L13-2-->L11-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_14 (- 1)) v_ULTIMATE.start_main_~x~0_13) (<= v_ULTIMATE.start_main_~x~0_14 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_14} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 5#L11-2true [2020-06-22 02:06:42,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:06:42,993 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times [2020-06-22 02:06:42,995 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:06:42,995 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:06:43,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:06:43,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:06:43,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:06:43,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:06:43,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:06:43,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:06:43,064 INFO L82 PathProgramCache]: Analyzing trace with hash 2277, now seen corresponding path program 1 times [2020-06-22 02:06:43,065 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:06:43,065 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:06:43,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:06:43,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:06:43,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:06:43,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:06:43,116 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 02:06:43,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 02:06:43,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-06-22 02:06:43,123 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 02:06:43,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 02:06:43,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 02:06:43,141 INFO L87 Difference]: Start difference. First operand 3 states. Second operand 3 states. [2020-06-22 02:06:43,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 02:06:43,159 INFO L93 Difference]: Finished difference Result 4 states and 5 transitions. [2020-06-22 02:06:43,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 02:06:43,163 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4 states and 5 transitions. [2020-06-22 02:06:43,163 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 02:06:43,167 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4 states to 4 states and 5 transitions. [2020-06-22 02:06:43,168 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 02:06:43,168 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 02:06:43,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2020-06-22 02:06:43,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 02:06:43,169 INFO L706 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2020-06-22 02:06:43,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2020-06-22 02:06:43,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2020-06-22 02:06:43,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 02:06:43,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2020-06-22 02:06:43,198 INFO L729 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2020-06-22 02:06:43,198 INFO L609 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2020-06-22 02:06:43,198 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 02:06:43,198 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2020-06-22 02:06:43,198 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 02:06:43,199 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:06:43,199 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:06:43,199 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 02:06:43,199 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 02:06:43,200 INFO L794 eck$LassoCheckResult]: Stem: 16#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] 17#L11-2 [2020-06-22 02:06:43,200 INFO L796 eck$LassoCheckResult]: Loop: 17#L11-2 [41] L11-2-->L13-2: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_11) (= v_ULTIMATE.start_main_~y~0_9 0)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 18#L13-2 [35] L13-2-->L13-2: Formula: (and (< v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~x~0_7) (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~y~0_8 1))) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0] 19#L13-2 [45] L13-2-->L11-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_14 (- 1)) v_ULTIMATE.start_main_~x~0_13) (<= v_ULTIMATE.start_main_~x~0_14 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_14} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 17#L11-2 [2020-06-22 02:06:43,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:06:43,201 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 2 times [2020-06-22 02:06:43,201 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:06:43,201 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:06:43,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:06:43,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:06:43,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:06:43,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:06:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:06:43,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:06:43,208 INFO L82 PathProgramCache]: Analyzing trace with hash 70322, now seen corresponding path program 1 times [2020-06-22 02:06:43,208 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:06:43,208 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:06:43,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:06:43,210 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 02:06:43,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:06:43,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:06:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:06:43,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:06:43,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1917364, now seen corresponding path program 1 times [2020-06-22 02:06:43,221 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:06:43,221 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:06:43,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:06:43,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:06:43,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:06:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:06:43,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:06:43,313 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:06:43,315 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:06:43,315 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:06:43,315 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:06:43,315 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:06:43,315 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:06:43,315 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:06:43,315 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:06:43,316 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 02:06:43,316 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:06:43,316 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:06:43,334 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 02:06:43,343 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 02:06:43,347 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 02:06:43,354 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 02:06:43,487 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:06:43,488 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 02:06:43,498 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:06:43,498 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:06:43,531 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:06:43,531 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/sandbox2/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 02:06:43,538 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:06:43,538 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:06:43,565 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:06:43,566 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/sandbox2/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 02:06:43,571 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:06:43,572 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/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 02:06:43,603 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:06:43,603 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:06:43,637 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:06:43,637 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/sandbox2/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 02:06:43,665 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:06:43,665 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/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 02:06:43,698 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:06:43,698 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:06:43,730 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 02:06:43,732 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:06:43,732 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:06:43,732 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:06:43,733 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:06:43,733 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 02:06:43,733 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 02:06:43,733 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:06:43,733 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:06:43,733 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 02:06:43,733 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:06:43,733 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:06:43,736 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 02:06:43,739 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 02:06:43,743 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 02:06:43,746 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 02:06:43,826 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:06:43,831 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 02:06:43,833 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 02:06:43,835 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:06:43,835 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:06:43,836 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:06:43,836 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:06:43,840 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 02:06:43,840 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 02:06:43,847 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:06:43,847 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 02:06:43,848 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:06:43,848 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:06:43,848 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:06:43,849 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:06:43,851 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 02:06:43,851 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 02:06:43,861 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:06:43,861 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 02:06:43,862 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:06:43,862 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:06:43,863 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:06:43,863 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:06:43,863 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:06:43,864 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:06:43,864 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:06:43,869 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:06:43,869 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 02:06:43,870 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:06:43,870 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:06:43,871 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:06:43,871 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:06:43,871 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:06:43,872 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:06:43,872 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:06:43,882 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 02:06:43,888 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 02:06:43,888 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 02:06:43,890 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 02:06:43,890 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 02:06:43,890 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 02:06:43,891 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 02:06:43,892 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 02:06:43,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:06:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:06:43,925 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 02:06:43,926 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:06:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:06:43,937 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 02:06:43,937 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:06:43,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-06-22 02:06:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:06:43,970 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 02:06:43,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:06:44,007 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 02:06:44,010 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-06-22 02:06:44,011 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand 3 states. [2020-06-22 02:06:44,037 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 7 states and 10 transitions. Complement of second has 4 states. [2020-06-22 02:06:44,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 02:06:44,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 02:06:44,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-06-22 02:06:44,041 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 02:06:44,042 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:06:44,043 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 02:06:44,043 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:06:44,043 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 02:06:44,043 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:06:44,048 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. [2020-06-22 02:06:44,048 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 02:06:44,049 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 10 transitions. [2020-06-22 02:06:44,049 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-06-22 02:06:44,049 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 02:06:44,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-06-22 02:06:44,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 02:06:44,050 INFO L706 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-06-22 02:06:44,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-06-22 02:06:44,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2020-06-22 02:06:44,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-06-22 02:06:44,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2020-06-22 02:06:44,052 INFO L729 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-06-22 02:06:44,052 INFO L609 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-06-22 02:06:44,052 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 02:06:44,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2020-06-22 02:06:44,053 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 02:06:44,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:06:44,053 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:06:44,053 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 02:06:44,053 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 02:06:44,054 INFO L794 eck$LassoCheckResult]: Stem: 68#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] 69#L11-2 [41] L11-2-->L13-2: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_11) (= v_ULTIMATE.start_main_~y~0_9 0)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 70#L13-2 [2020-06-22 02:06:44,054 INFO L796 eck$LassoCheckResult]: Loop: 70#L13-2 [35] L13-2-->L13-2: Formula: (and (< v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~x~0_7) (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~y~0_8 1))) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0] 70#L13-2 [2020-06-22 02:06:44,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:06:44,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1994, now seen corresponding path program 1 times [2020-06-22 02:06:44,054 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:06:44,054 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:06:44,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:06:44,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:06:44,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:06:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:06:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:06:44,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:06:44,063 INFO L82 PathProgramCache]: Analyzing trace with hash 66, now seen corresponding path program 1 times [2020-06-22 02:06:44,063 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:06:44,063 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:06:44,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:06:44,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:06:44,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:06:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:06:44,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:06:44,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:06:44,070 INFO L82 PathProgramCache]: Analyzing trace with hash 61849, now seen corresponding path program 1 times [2020-06-22 02:06:44,070 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:06:44,070 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:06:44,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:06:44,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:06:44,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:06:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:06:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:06:44,093 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:06:44,093 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:06:44,093 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:06:44,094 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:06:44,094 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:06:44,094 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:06:44,094 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:06:44,094 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:06:44,094 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 02:06:44,094 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:06:44,094 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:06:44,096 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 02:06:44,098 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 02:06:44,105 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 02:06:44,108 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 02:06:44,160 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:06:44,161 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 02:06:44,170 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:06:44,170 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:06:44,197 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:06:44,198 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/sandbox2/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 02:06:44,208 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:06:44,208 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 No working directory specified, using /export/starexec/sandbox2/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 02:06:44,241 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:06:44,242 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:06:44,428 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 02:06:44,431 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:06:44,431 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:06:44,431 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:06:44,431 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:06:44,431 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 02:06:44,431 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 02:06:44,432 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:06:44,432 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:06:44,432 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 02:06:44,433 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:06:44,433 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:06:44,434 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 02:06:44,444 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 02:06:44,449 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 02:06:44,454 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 02:06:44,508 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:06:44,509 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 02:06:44,509 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 02:06:44,510 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:06:44,510 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:06:44,510 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:06:44,510 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:06:44,511 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:06:44,511 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:06:44,511 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:06:44,516 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 02:06:44,520 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 02:06:44,520 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 02:06:44,521 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 02:06:44,521 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 02:06:44,521 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 02:06:44,521 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-06-22 02:06:44,522 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 02:06:44,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:06:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:06:44,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 02:06:44,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:06:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:06:44,560 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 02:06:44,560 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:06:44,560 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 02:06:44,561 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 02:06:44,561 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-06-22 02:06:44,561 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-06-22 02:06:44,572 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 8 states and 11 transitions. Complement of second has 4 states. [2020-06-22 02:06:44,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 02:06:44,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 02:06:44,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-06-22 02:06:44,574 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 1 letters. [2020-06-22 02:06:44,574 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:06:44,574 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 1 letters. [2020-06-22 02:06:44,575 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:06:44,575 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 02:06:44,575 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:06:44,576 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 11 transitions. [2020-06-22 02:06:44,577 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 02:06:44,577 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2020-06-22 02:06:44,577 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 02:06:44,577 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 02:06:44,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 02:06:44,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 02:06:44,578 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:06:44,578 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:06:44,578 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:06:44,578 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 02:06:44,578 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 02:06:44,578 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 02:06:44,578 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 02:06:44,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:06:44 BasicIcfg [2020-06-22 02:06:44,585 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 02:06:44,585 INFO L168 Benchmark]: Toolchain (without parser) took 2452.48 ms. Allocated memory was 649.6 MB in the beginning and 697.3 MB in the end (delta: 47.7 MB). Free memory was 565.2 MB in the beginning and 469.7 MB in the end (delta: 95.5 MB). Peak memory consumption was 143.2 MB. Max. memory is 50.3 GB. [2020-06-22 02:06:44,587 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 02:06:44,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.86 ms. Allocated memory was 649.6 MB in the beginning and 697.3 MB in the end (delta: 47.7 MB). Free memory was 565.2 MB in the beginning and 664.0 MB in the end (delta: -98.8 MB). Peak memory consumption was 30.6 MB. Max. memory is 50.3 GB. [2020-06-22 02:06:44,588 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.92 ms. Allocated memory is still 697.3 MB. Free memory was 664.0 MB in the beginning and 662.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 02:06:44,589 INFO L168 Benchmark]: Boogie Preprocessor took 18.86 ms. Allocated memory is still 697.3 MB. Free memory was 662.9 MB in the beginning and 661.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 02:06:44,590 INFO L168 Benchmark]: RCFGBuilder took 199.75 ms. Allocated memory is still 697.3 MB. Free memory was 660.7 MB in the beginning and 646.2 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 50.3 GB. [2020-06-22 02:06:44,590 INFO L168 Benchmark]: BlockEncodingV2 took 73.09 ms. Allocated memory is still 697.3 MB. Free memory was 646.2 MB in the beginning and 640.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 02:06:44,591 INFO L168 Benchmark]: TraceAbstraction took 153.80 ms. Allocated memory is still 697.3 MB. Free memory was 640.8 MB in the beginning and 632.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-06-22 02:06:44,592 INFO L168 Benchmark]: BuchiAutomizer took 1669.11 ms. Allocated memory is still 697.3 MB. Free memory was 632.2 MB in the beginning and 469.7 MB in the end (delta: 162.5 MB). Peak memory consumption was 162.5 MB. Max. memory is 50.3 GB. [2020-06-22 02:06:44,597 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 3 locations, 4 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 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 298.86 ms. Allocated memory was 649.6 MB in the beginning and 697.3 MB in the end (delta: 47.7 MB). Free memory was 565.2 MB in the beginning and 664.0 MB in the end (delta: -98.8 MB). Peak memory consumption was 30.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.92 ms. Allocated memory is still 697.3 MB. Free memory was 664.0 MB in the beginning and 662.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.86 ms. Allocated memory is still 697.3 MB. Free memory was 662.9 MB in the beginning and 661.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 199.75 ms. Allocated memory is still 697.3 MB. Free memory was 660.7 MB in the beginning and 646.2 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 73.09 ms. Allocated memory is still 697.3 MB. Free memory was 646.2 MB in the beginning and 640.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 153.80 ms. Allocated memory is still 697.3 MB. Free memory was 640.8 MB in the beginning and 632.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1669.11 ms. Allocated memory is still 697.3 MB. Free memory was 632.2 MB in the beginning and 469.7 MB in the end (delta: 162.5 MB). Peak memory consumption was 162.5 MB. 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: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 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 3 locations. One nondeterministic module has affine ranking function x + -1 * y and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 11 SDtfs, 11 SDslu, 0 SDs, 0 SdLazy, 19 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax168 hnf100 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq161 hnf93 smp93 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 02:06:38.911 ----------------------------------------------- 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/sandbox2/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/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 02:06:44.831 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check