YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 01:20:25,112 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 01:20:25,114 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 01:20:25,126 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 01:20:25,126 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 01:20:25,127 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 01:20:25,128 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 01:20:25,130 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 01:20:25,132 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 01:20:25,132 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 01:20:25,133 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 01:20:25,134 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 01:20:25,134 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 01:20:25,135 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 01:20:25,136 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 01:20:25,137 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 01:20:25,138 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 01:20:25,140 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 01:20:25,142 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 01:20:25,143 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 01:20:25,144 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 01:20:25,145 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 01:20:25,147 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 01:20:25,147 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 01:20:25,147 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 01:20:25,148 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 01:20:25,149 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 01:20:25,150 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 01:20:25,150 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 01:20:25,150 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 01:20:25,151 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 01:20:25,152 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 01:20:25,153 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 01:20:25,153 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 01:20:25,153 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 01:20:25,154 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 01:20:25,154 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 01:20:25,155 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 01:20:25,155 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 01:20:25,156 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 01:20:25,169 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 01:20:25,170 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 01:20:25,171 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 01:20:25,171 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 01:20:25,171 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 01:20:25,171 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 01:20:25,172 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 01:20:25,172 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 01:20:25,172 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 01:20:25,172 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 01:20:25,172 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 01:20:25,172 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 01:20:25,173 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 01:20:25,173 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 01:20:25,173 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:20:25,173 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 01:20:25,173 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 01:20:25,174 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 01:20:25,174 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 01:20:25,174 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 01:20:25,174 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 01:20:25,174 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 01:20:25,174 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 01:20:25,175 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 01:20:25,175 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 01:20:25,175 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 01:20:25,175 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 01:20:25,175 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 01:20:25,175 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 01:20:25,200 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 01:20:25,214 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 01:20:25,217 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 01:20:25,219 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 01:20:25,219 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 01:20:25,220 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 01:20:25,289 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/be9faa1bcc0d40a7b2ec0308c572ceef/FLAGd6684503f [2020-06-22 01:20:25,624 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 01:20:25,625 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 01:20:25,631 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/be9faa1bcc0d40a7b2ec0308c572ceef/FLAGd6684503f [2020-06-22 01:20:26,029 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/be9faa1bcc0d40a7b2ec0308c572ceef [2020-06-22 01:20:26,040 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 01:20:26,042 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 01:20:26,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 01:20:26,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 01:20:26,047 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 01:20:26,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 01:20:26" (1/1) ... [2020-06-22 01:20:26,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5de2ad6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:20:26, skipping insertion in model container [2020-06-22 01:20:26,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 01:20:26" (1/1) ... [2020-06-22 01:20:26,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 01:20:26,076 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 01:20:26,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 01:20:26,235 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 01:20:26,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 01:20:26,321 INFO L195 MainTranslator]: Completed translation [2020-06-22 01:20:26,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:20:26 WrapperNode [2020-06-22 01:20:26,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 01:20:26,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 01:20:26,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 01:20:26,323 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 01:20:26,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:20:26" (1/1) ... [2020-06-22 01:20:26,338 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:20:26" (1/1) ... [2020-06-22 01:20:26,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 01:20:26,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 01:20:26,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 01:20:26,358 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 01:20:26,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:20:26" (1/1) ... [2020-06-22 01:20:26,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:20:26" (1/1) ... [2020-06-22 01:20:26,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:20:26" (1/1) ... [2020-06-22 01:20:26,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:20:26" (1/1) ... [2020-06-22 01:20:26,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:20:26" (1/1) ... [2020-06-22 01:20:26,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:20:26" (1/1) ... [2020-06-22 01:20:26,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:20:26" (1/1) ... [2020-06-22 01:20:26,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 01:20:26,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 01:20:26,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 01:20:26,379 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 01:20:26,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:20:26" (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 01:20:26,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 01:20:26,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 01:20:26,592 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 01:20:26,592 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2020-06-22 01:20:26,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:20:26 BoogieIcfgContainer [2020-06-22 01:20:26,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 01:20:26,594 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 01:20:26,594 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 01:20:26,596 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 01:20:26,597 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:20:26" (1/1) ... [2020-06-22 01:20:26,613 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 13 edges [2020-06-22 01:20:26,615 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 01:20:26,616 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 01:20:26,616 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 01:20:26,617 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 01:20:26,618 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 01:20:26,619 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 01:20:26,619 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 01:20:26,636 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 01:20:26,651 INFO L200 BlockEncoder]: SBE split 2 edges [2020-06-22 01:20:26,656 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-06-22 01:20:26,658 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 01:20:26,686 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 01:20:26,689 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-06-22 01:20:26,691 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 01:20:26,691 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 01:20:26,691 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 01:20:26,691 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 01:20:26,692 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 7 edges [2020-06-22 01:20:26,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:20:26 BasicIcfg [2020-06-22 01:20:26,692 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 01:20:26,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 01:20:26,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 01:20:26,697 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 01:20:26,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 01:20:26" (1/4) ... [2020-06-22 01:20:26,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e42e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:20:26, skipping insertion in model container [2020-06-22 01:20:26,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:20:26" (2/4) ... [2020-06-22 01:20:26,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e42e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:20:26, skipping insertion in model container [2020-06-22 01:20:26,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:20:26" (3/4) ... [2020-06-22 01:20:26,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e42e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:20:26, skipping insertion in model container [2020-06-22 01:20:26,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:20:26" (4/4) ... [2020-06-22 01:20:26,701 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 01:20:26,713 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 01:20:26,721 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 01:20:26,740 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 01:20:26,770 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 01:20:26,771 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 01:20:26,771 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 01:20:26,771 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 01:20:26,771 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 01:20:26,771 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 01:20:26,772 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 01:20:26,772 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 01:20:26,772 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 01:20:26,787 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-06-22 01:20:26,793 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 01:20:26,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-06-22 01:20:26,849 INFO L448 ceAbstractionStarter]: For program point L17(lines 17 23) no Hoare annotation was computed. [2020-06-22 01:20:26,849 INFO L451 ceAbstractionStarter]: At program point L17-2(lines 16 24) the Hoare annotation is: true [2020-06-22 01:20:26,850 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 01:20:26,850 INFO L451 ceAbstractionStarter]: At program point L14-2(lines 14 26) the Hoare annotation is: true [2020-06-22 01:20:26,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:20:26 BasicIcfg [2020-06-22 01:20:26,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 01:20:26,859 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 01:20:26,859 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 01:20:26,862 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 01:20:26,863 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:20:26,863 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 01:20:26" (1/5) ... [2020-06-22 01:20:26,864 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e34f623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 01:20:26, skipping insertion in model container [2020-06-22 01:20:26,864 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:20:26,864 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:20:26" (2/5) ... [2020-06-22 01:20:26,864 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e34f623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 01:20:26, skipping insertion in model container [2020-06-22 01:20:26,865 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:20:26,865 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:20:26" (3/5) ... [2020-06-22 01:20:26,865 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e34f623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:20:26, skipping insertion in model container [2020-06-22 01:20:26,865 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:20:26,865 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:20:26" (4/5) ... [2020-06-22 01:20:26,866 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e34f623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:20:26, skipping insertion in model container [2020-06-22 01:20:26,866 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:20:26,866 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:20:26" (5/5) ... [2020-06-22 01:20:26,867 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 01:20:26,892 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 01:20:26,892 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 01:20:26,893 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 01:20:26,893 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 01:20:26,893 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 01:20:26,893 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 01:20:26,893 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 01:20:26,893 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 01:20:26,893 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 01:20:26,896 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 01:20:26,913 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 01:20:26,914 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:20:26,914 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:20:26,919 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 01:20:26,919 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 01:20:26,919 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 01:20:26,919 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 01:20:26,920 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 01:20:26,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:20:26,920 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:20:26,920 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 01:20:26,921 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 01:20:26,926 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [40] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~res~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~res~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~ytmp~0] 6#L14-2true [2020-06-22 01:20:26,926 INFO L796 eck$LassoCheckResult]: Loop: 6#L14-2true [46] L14-2-->L17-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~ytmp~0_4 v_ULTIMATE.start_main_~y~0_7) (<= v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~ytmp~0] 3#L17-2true [57] L17-2-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~res~0_9 1) v_ULTIMATE.start_main_~res~0_8) (= v_ULTIMATE.start_main_~ytmp~0_11 0)) InVars {ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_9, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_11} OutVars{ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_8, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~0] 6#L14-2true [2020-06-22 01:20:26,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:20:26,932 INFO L82 PathProgramCache]: Analyzing trace with hash 71, now seen corresponding path program 1 times [2020-06-22 01:20:26,934 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:20:26,935 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:20:26,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:20:26,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:20:26,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:20:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:20:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:20:27,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:20:27,003 INFO L82 PathProgramCache]: Analyzing trace with hash 2444, now seen corresponding path program 1 times [2020-06-22 01:20:27,004 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:20:27,004 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:20:27,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:20:27,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:20:27,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:20:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:20:27,054 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 01:20:27,056 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:20:27,056 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-06-22 01:20:27,061 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 01:20:27,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 01:20:27,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 01:20:27,079 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states. [2020-06-22 01:20:27,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:20:27,118 INFO L93 Difference]: Finished difference Result 6 states and 9 transitions. [2020-06-22 01:20:27,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 01:20:27,122 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 9 transitions. [2020-06-22 01:20:27,123 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 01:20:27,127 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 9 transitions. [2020-06-22 01:20:27,128 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 01:20:27,128 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-06-22 01:20:27,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 9 transitions. [2020-06-22 01:20:27,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 01:20:27,129 INFO L706 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-06-22 01:20:27,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 9 transitions. [2020-06-22 01:20:27,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-06-22 01:20:27,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-06-22 01:20:27,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2020-06-22 01:20:27,157 INFO L729 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-06-22 01:20:27,158 INFO L609 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-06-22 01:20:27,158 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 01:20:27,158 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2020-06-22 01:20:27,158 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 01:20:27,158 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:20:27,159 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:20:27,159 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 01:20:27,159 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-22 01:20:27,159 INFO L794 eck$LassoCheckResult]: Stem: 21#ULTIMATE.startENTRY [40] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~res~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~0=v_ULTIMATE.start_main_~res~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_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, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~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~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~ytmp~0] 22#L14-2 [2020-06-22 01:20:27,160 INFO L796 eck$LassoCheckResult]: Loop: 22#L14-2 [46] L14-2-->L17-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~ytmp~0_4 v_ULTIMATE.start_main_~y~0_7) (<= v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~ytmp~0] 19#L17-2 [55] L17-2-->L17: Formula: (< 0 v_ULTIMATE.start_main_~ytmp~0_6) InVars {ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_6} OutVars{ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_6} AuxVars[] AssignedVars[] 20#L17 [42] L17-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~ytmp~0_7 (+ v_ULTIMATE.start_main_~ytmp~0_8 (- 1))) (< 0 v_ULTIMATE.start_main_~ytmp~0_8) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1)))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_8} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~ytmp~0] 23#L17-2 [57] L17-2-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~res~0_9 1) v_ULTIMATE.start_main_~res~0_8) (= v_ULTIMATE.start_main_~ytmp~0_11 0)) InVars {ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_9, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_11} OutVars{ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_8, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~0] 22#L14-2 [2020-06-22 01:20:27,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:20:27,160 INFO L82 PathProgramCache]: Analyzing trace with hash 71, now seen corresponding path program 2 times [2020-06-22 01:20:27,160 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:20:27,161 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:20:27,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:20:27,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:20:27,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:20:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:20:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:20:27,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:20:27,168 INFO L82 PathProgramCache]: Analyzing trace with hash 2348121, now seen corresponding path program 1 times [2020-06-22 01:20:27,168 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:20:27,168 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:20:27,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:20:27,170 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 01:20:27,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:20:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:20:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:20:27,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:20:27,181 INFO L82 PathProgramCache]: Analyzing trace with hash 66994591, now seen corresponding path program 1 times [2020-06-22 01:20:27,182 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:20:27,182 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:20:27,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:20:27,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:20:27,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:20:27,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:20:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:20:27,277 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:20:27,278 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:20:27,278 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:20:27,279 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:20:27,279 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 01:20:27,279 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:20:27,279 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:20:27,279 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:20:27,279 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 01:20:27,279 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:20:27,280 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:20:27,300 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 01:20:27,309 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 01:20:27,312 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 01:20:27,324 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 01:20:27,432 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:20:27,433 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 01:20:27,441 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:20:27,441 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:20:27,474 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:20:27,474 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 01:20:27,484 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:20:27,484 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:20:27,512 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:20:27,512 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 01:20:27,519 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:20:27,519 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 01:20:27,551 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 01:20:27,551 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:20:27,811 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 01:20:27,815 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:20:27,815 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:20:27,815 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:20:27,815 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:20:27,815 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 01:20:27,815 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 01:20:27,816 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:20:27,816 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:20:27,816 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 01:20:27,816 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:20:27,816 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:20:27,818 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 01:20:27,822 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 01:20:27,828 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 01:20:27,831 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 01:20:27,916 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:20:27,922 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 01:20:27,924 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 01:20:27,925 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:20:27,925 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:20:27,926 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:20:27,926 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:20:27,930 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 01:20:27,930 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 01:20:27,936 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:20:27,936 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 01:20:27,937 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:20:27,937 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:20:27,937 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:20:27,938 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:20:27,940 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 01:20:27,940 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 01:20:27,948 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:20:27,949 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 01:20:27,949 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:20:27,949 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 01:20:27,950 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:20:27,950 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:20:27,950 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:20:27,951 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 01:20:27,951 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 01:20:27,955 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:20:27,956 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 01:20:27,956 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:20:27,956 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 01:20:27,956 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:20:27,957 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:20:27,957 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:20:27,958 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 01:20:27,958 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 01:20:27,965 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 01:20:27,975 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 01:20:27,975 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 2 variables to zero. [2020-06-22 01:20:27,977 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 01:20:27,977 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 01:20:27,977 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 01:20:27,978 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 01:20:27,979 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 01:20:27,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:20:28,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:20:28,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 01:20:28,007 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:20:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:20:28,017 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 01:20:28,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:20:28,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 01:20:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:20:28,098 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 01:20:28,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:20:28,110 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-06-22 01:20:28,113 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 01:20:28,114 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 9 transitions. cyclomatic complexity: 4 Second operand 4 states. [2020-06-22 01:20:28,249 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 9 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 34 states and 53 transitions. Complement of second has 9 states. [2020-06-22 01:20:28,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2020-06-22 01:20:28,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 01:20:28,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 26 transitions. [2020-06-22 01:20:28,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 26 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 01:20:28,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:20:28,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 26 transitions. Stem has 5 letters. Loop has 4 letters. [2020-06-22 01:20:28,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:20:28,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 26 transitions. Stem has 1 letters. Loop has 8 letters. [2020-06-22 01:20:28,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:20:28,262 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 53 transitions. [2020-06-22 01:20:28,264 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2020-06-22 01:20:28,267 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 27 states and 44 transitions. [2020-06-22 01:20:28,267 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-06-22 01:20:28,267 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-06-22 01:20:28,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 44 transitions. [2020-06-22 01:20:28,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 01:20:28,268 INFO L706 BuchiCegarLoop]: Abstraction has 27 states and 44 transitions. [2020-06-22 01:20:28,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 44 transitions. [2020-06-22 01:20:28,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 20. [2020-06-22 01:20:28,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-06-22 01:20:28,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 36 transitions. [2020-06-22 01:20:28,272 INFO L729 BuchiCegarLoop]: Abstraction has 20 states and 36 transitions. [2020-06-22 01:20:28,272 INFO L609 BuchiCegarLoop]: Abstraction has 20 states and 36 transitions. [2020-06-22 01:20:28,272 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 01:20:28,272 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 36 transitions. [2020-06-22 01:20:28,273 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2020-06-22 01:20:28,273 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:20:28,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:20:28,274 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2020-06-22 01:20:28,274 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 01:20:28,275 INFO L794 eck$LassoCheckResult]: Stem: 123#ULTIMATE.startENTRY [40] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~res~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~0=v_ULTIMATE.start_main_~res~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_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, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~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~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~ytmp~0] 124#L14-2 [46] L14-2-->L17-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~ytmp~0_4 v_ULTIMATE.start_main_~y~0_7) (<= v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~ytmp~0] 121#L17-2 [55] L17-2-->L17: Formula: (< 0 v_ULTIMATE.start_main_~ytmp~0_6) InVars {ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_6} OutVars{ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_6} AuxVars[] AssignedVars[] 122#L17 [42] L17-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~ytmp~0_7 (+ v_ULTIMATE.start_main_~ytmp~0_8 (- 1))) (< 0 v_ULTIMATE.start_main_~ytmp~0_8) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1)))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_8} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~ytmp~0] 136#L17-2 [55] L17-2-->L17: Formula: (< 0 v_ULTIMATE.start_main_~ytmp~0_6) InVars {ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_6} OutVars{ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_6} AuxVars[] AssignedVars[] 119#L17 [2020-06-22 01:20:28,275 INFO L796 eck$LassoCheckResult]: Loop: 119#L17 [42] L17-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~ytmp~0_7 (+ v_ULTIMATE.start_main_~ytmp~0_8 (- 1))) (< 0 v_ULTIMATE.start_main_~ytmp~0_8) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1)))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_8} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~ytmp~0] 118#L17-2 [55] L17-2-->L17: Formula: (< 0 v_ULTIMATE.start_main_~ytmp~0_6) InVars {ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_6} OutVars{ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_6} AuxVars[] AssignedVars[] 119#L17 [2020-06-22 01:20:28,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:20:28,275 INFO L82 PathProgramCache]: Analyzing trace with hash 66994589, now seen corresponding path program 1 times [2020-06-22 01:20:28,275 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:20:28,276 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:20:28,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:20:28,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:20:28,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:20:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:20:28,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:20:28,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:20:28,290 INFO L82 PathProgramCache]: Analyzing trace with hash 2318, now seen corresponding path program 1 times [2020-06-22 01:20:28,290 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:20:28,290 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:20:28,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:20:28,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:20:28,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:20:28,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:20:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:20:28,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:20:28,297 INFO L82 PathProgramCache]: Analyzing trace with hash -42708054, now seen corresponding path program 2 times [2020-06-22 01:20:28,297 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:20:28,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:20:28,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:20:28,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:20:28,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:20:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:20:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:20:28,334 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:20:28,334 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:20:28,334 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:20:28,335 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:20:28,335 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 01:20:28,335 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:20:28,335 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:20:28,335 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:20:28,335 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 01:20:28,335 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:20:28,335 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:20:28,337 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 01:20:28,340 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 01:20:28,343 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 01:20:28,348 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 01:20:28,398 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:20:28,399 INFO L412 LassoAnalysis]: Checking for nontermination... 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 01:20:28,409 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:20:28,409 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:20:28,437 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:20:28,438 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 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 01:20:28,443 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:20:28,444 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:20:28,471 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:20:28,472 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/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 01:20:28,478 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:20:28,478 INFO L163 nArgumentSynthesizer]: Using integer mode. 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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:20:28,524 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 01:20:28,524 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:20:28,595 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 01:20:28,599 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:20:28,599 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:20:28,599 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:20:28,599 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:20:28,600 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 01:20:28,600 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 01:20:28,600 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:20:28,600 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:20:28,600 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 01:20:28,600 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:20:28,600 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:20:28,602 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 01:20:28,614 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 01:20:28,620 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 01:20:28,626 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 01:20:28,677 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:20:28,677 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 01:20:28,678 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 01:20:28,679 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:20:28,679 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:20:28,679 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:20:28,679 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:20:28,681 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 01:20:28,681 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 01:20:28,685 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:20:28,685 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 01:20:28,686 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:20:28,686 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:20:28,686 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:20:28,686 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:20:28,688 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 01:20:28,688 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 01:20:28,693 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:20:28,694 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 01:20:28,694 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:20:28,694 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 01:20:28,695 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:20:28,695 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:20:28,695 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:20:28,695 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 01:20:28,696 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 01:20:28,699 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 01:20:28,702 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 01:20:28,702 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 01:20:28,703 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 01:20:28,703 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 01:20:28,703 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 01:20:28,703 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~ytmp~0) = 1*ULTIMATE.start_main_~ytmp~0 Supporting invariants [] [2020-06-22 01:20:28,704 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 01:20:28,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:20:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:20:28,727 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 01:20:28,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:20:28,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:20:28,733 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 01:20:28,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:20:28,740 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 01:20:28,741 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 01:20:28,741 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 01:20:28,741 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 20 states and 36 transitions. cyclomatic complexity: 19 Second operand 3 states. [2020-06-22 01:20:28,775 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 20 states and 36 transitions. cyclomatic complexity: 19. Second operand 3 states. Result 46 states and 73 transitions. Complement of second has 6 states. [2020-06-22 01:20:28,776 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 01:20:28,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 01:20:28,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2020-06-22 01:20:28,776 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 5 letters. Loop has 2 letters. [2020-06-22 01:20:28,777 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:20:28,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 7 letters. Loop has 2 letters. [2020-06-22 01:20:28,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:20:28,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 5 letters. Loop has 4 letters. [2020-06-22 01:20:28,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:20:28,779 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 73 transitions. [2020-06-22 01:20:28,782 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2020-06-22 01:20:28,783 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 39 states and 64 transitions. [2020-06-22 01:20:28,783 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-06-22 01:20:28,783 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-06-22 01:20:28,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 64 transitions. [2020-06-22 01:20:28,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 01:20:28,784 INFO L706 BuchiCegarLoop]: Abstraction has 39 states and 64 transitions. [2020-06-22 01:20:28,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 64 transitions. [2020-06-22 01:20:28,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 29. [2020-06-22 01:20:28,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-06-22 01:20:28,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 54 transitions. [2020-06-22 01:20:28,788 INFO L729 BuchiCegarLoop]: Abstraction has 29 states and 54 transitions. [2020-06-22 01:20:28,788 INFO L609 BuchiCegarLoop]: Abstraction has 29 states and 54 transitions. [2020-06-22 01:20:28,788 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 01:20:28,788 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 54 transitions. [2020-06-22 01:20:28,789 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2020-06-22 01:20:28,790 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:20:28,790 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:20:28,790 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-06-22 01:20:28,790 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-22 01:20:28,791 INFO L794 eck$LassoCheckResult]: Stem: 232#ULTIMATE.startENTRY [40] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~res~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~0=v_ULTIMATE.start_main_~res~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_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, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~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~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~ytmp~0] 233#L14-2 [46] L14-2-->L17-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~ytmp~0_4 v_ULTIMATE.start_main_~y~0_7) (<= v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~ytmp~0] 230#L17-2 [55] L17-2-->L17: Formula: (< 0 v_ULTIMATE.start_main_~ytmp~0_6) InVars {ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_6} OutVars{ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_6} AuxVars[] AssignedVars[] 231#L17 [42] L17-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~ytmp~0_7 (+ v_ULTIMATE.start_main_~ytmp~0_8 (- 1))) (< 0 v_ULTIMATE.start_main_~ytmp~0_8) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1)))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_8} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~ytmp~0] 252#L17-2 [56] L17-2-->L17: Formula: (> 0 v_ULTIMATE.start_main_~ytmp~0_6) InVars {ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_6} OutVars{ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_6} AuxVars[] AssignedVars[] 228#L17 [2020-06-22 01:20:28,791 INFO L796 eck$LassoCheckResult]: Loop: 228#L17 [42] L17-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~ytmp~0_7 (+ v_ULTIMATE.start_main_~ytmp~0_8 (- 1))) (< 0 v_ULTIMATE.start_main_~ytmp~0_8) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1)))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_8} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~ytmp~0] 249#L17-2 [56] L17-2-->L17: Formula: (> 0 v_ULTIMATE.start_main_~ytmp~0_6) InVars {ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_6} OutVars{ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_6} AuxVars[] AssignedVars[] 234#L17 [52] L17-->L17-2: Formula: (and (>= 0 v_ULTIMATE.start_main_~ytmp~0_10) (= v_ULTIMATE.start_main_~x~0_10 (+ v_ULTIMATE.start_main_~x~0_11 1)) (= v_ULTIMATE.start_main_~ytmp~0_9 (+ v_ULTIMATE.start_main_~ytmp~0_10 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_10} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~ytmp~0] 235#L17-2 [55] L17-2-->L17: Formula: (< 0 v_ULTIMATE.start_main_~ytmp~0_6) InVars {ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_6} OutVars{ULTIMATE.start_main_~ytmp~0=v_ULTIMATE.start_main_~ytmp~0_6} AuxVars[] AssignedVars[] 228#L17 [2020-06-22 01:20:28,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:20:28,791 INFO L82 PathProgramCache]: Analyzing trace with hash 66994590, now seen corresponding path program 1 times [2020-06-22 01:20:28,791 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:20:28,791 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:20:28,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:20:28,793 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 01:20:28,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:20:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:20:28,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 01:20:28,811 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:20:28,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 01:20:28,812 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-06-22 01:20:28,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:20:28,812 INFO L82 PathProgramCache]: Analyzing trace with hash 2230226, now seen corresponding path program 1 times [2020-06-22 01:20:28,812 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:20:28,812 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:20:28,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:20:28,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:20:28,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:20:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:20:28,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 01:20:28,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:20:28,823 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 01:20:28,824 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 01:20:28,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 01:20:28,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 01:20:28,824 INFO L87 Difference]: Start difference. First operand 29 states and 54 transitions. cyclomatic complexity: 28 Second operand 3 states. [2020-06-22 01:20:28,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:20:28,831 INFO L93 Difference]: Finished difference Result 11 states and 14 transitions. [2020-06-22 01:20:28,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 01:20:28,833 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2020-06-22 01:20:28,834 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 01:20:28,834 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-06-22 01:20:28,834 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 01:20:28,834 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 01:20:28,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 01:20:28,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 01:20:28,834 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 01:20:28,834 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 01:20:28,835 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 01:20:28,835 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 01:20:28,835 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 01:20:28,835 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 01:20:28,835 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 01:20:28,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:20:28 BasicIcfg [2020-06-22 01:20:28,841 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 01:20:28,841 INFO L168 Benchmark]: Toolchain (without parser) took 2800.38 ms. Allocated memory was 649.6 MB in the beginning and 676.9 MB in the end (delta: 27.3 MB). Free memory was 563.8 MB in the beginning and 418.2 MB in the end (delta: 145.6 MB). Peak memory consumption was 172.9 MB. Max. memory is 50.3 GB. [2020-06-22 01:20:28,843 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 01:20:28,843 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.14 ms. Allocated memory was 649.6 MB in the beginning and 676.9 MB in the end (delta: 27.3 MB). Free memory was 563.8 MB in the beginning and 640.7 MB in the end (delta: -76.8 MB). Peak memory consumption was 29.1 MB. Max. memory is 50.3 GB. [2020-06-22 01:20:28,844 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.35 ms. Allocated memory is still 676.9 MB. Free memory was 640.7 MB in the beginning and 639.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 01:20:28,845 INFO L168 Benchmark]: Boogie Preprocessor took 19.87 ms. Allocated memory is still 676.9 MB. Free memory was 639.6 MB in the beginning and 638.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 01:20:28,845 INFO L168 Benchmark]: RCFGBuilder took 215.17 ms. Allocated memory is still 676.9 MB. Free memory was 638.4 MB in the beginning and 624.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 50.3 GB. [2020-06-22 01:20:28,846 INFO L168 Benchmark]: BlockEncodingV2 took 98.52 ms. Allocated memory is still 676.9 MB. Free memory was 624.8 MB in the beginning and 619.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 01:20:28,846 INFO L168 Benchmark]: TraceAbstraction took 165.10 ms. Allocated memory is still 676.9 MB. Free memory was 618.3 MB in the beginning and 609.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 50.3 GB. [2020-06-22 01:20:28,847 INFO L168 Benchmark]: BuchiAutomizer took 1982.12 ms. Allocated memory is still 676.9 MB. Free memory was 609.6 MB in the beginning and 418.2 MB in the end (delta: 191.4 MB). Peak memory consumption was 191.4 MB. Max. memory is 50.3 GB. [2020-06-22 01:20:28,851 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 13 edges - StatisticsResult: Encoded RCFG 4 locations, 7 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 279.14 ms. Allocated memory was 649.6 MB in the beginning and 676.9 MB in the end (delta: 27.3 MB). Free memory was 563.8 MB in the beginning and 640.7 MB in the end (delta: -76.8 MB). Peak memory consumption was 29.1 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.35 ms. Allocated memory is still 676.9 MB. Free memory was 640.7 MB in the beginning and 639.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.87 ms. Allocated memory is still 676.9 MB. Free memory was 639.6 MB in the beginning and 638.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 215.17 ms. Allocated memory is still 676.9 MB. Free memory was 638.4 MB in the beginning and 624.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 98.52 ms. Allocated memory is still 676.9 MB. Free memory was 624.8 MB in the beginning and 619.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 165.10 ms. Allocated memory is still 676.9 MB. Free memory was 618.3 MB in the beginning and 609.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1982.12 ms. Allocated memory is still 676.9 MB. Free memory was 609.6 MB in the beginning and 418.2 MB in the end (delta: 191.4 MB). Peak memory consumption was 191.4 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: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 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=4occurred 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 4 terminating modules (2 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function x and consists of 6 locations. One nondeterministic module has affine ranking function ytmp and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 17 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 29 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 17 SDtfs, 30 SDslu, 21 SDs, 0 SdLazy, 75 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax166 hnf100 lsp44 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq174 hnf92 smp100 dnf100 smp100 tf109 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 01:20:22.808 ----------------------------------------------- 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 01:20:29.083 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check