YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 04:52:25,000 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 04:52:25,002 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 04:52:25,013 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 04:52:25,013 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 04:52:25,014 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 04:52:25,016 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 04:52:25,017 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 04:52:25,019 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 04:52:25,019 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 04:52:25,020 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 04:52:25,020 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 04:52:25,021 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 04:52:25,022 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 04:52:25,023 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 04:52:25,024 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 04:52:25,025 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 04:52:25,026 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 04:52:25,028 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 04:52:25,029 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 04:52:25,030 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 04:52:25,031 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 04:52:25,033 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 04:52:25,034 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 04:52:25,034 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 04:52:25,034 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 04:52:25,035 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 04:52:25,036 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 04:52:25,036 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 04:52:25,037 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 04:52:25,037 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 04:52:25,038 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 04:52:25,039 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 04:52:25,039 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 04:52:25,040 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 04:52:25,040 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 04:52:25,040 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 04:52:25,041 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 04:52:25,041 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 04:52:25,042 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 04:52:25,056 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 04:52:25,056 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 04:52:25,057 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 04:52:25,058 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 04:52:25,058 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 04:52:25,058 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 04:52:25,058 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 04:52:25,058 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 04:52:25,058 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 04:52:25,058 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 04:52:25,059 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 04:52:25,059 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 04:52:25,059 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 04:52:25,059 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 04:52:25,059 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:52:25,059 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 04:52:25,060 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 04:52:25,060 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 04:52:25,060 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 04:52:25,060 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 04:52:25,060 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 04:52:25,060 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 04:52:25,061 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 04:52:25,061 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 04:52:25,061 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 04:52:25,061 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 04:52:25,061 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 04:52:25,061 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 04:52:25,061 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 04:52:25,086 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 04:52:25,099 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 04:52:25,102 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 04:52:25,104 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 04:52:25,104 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 04:52:25,105 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 04:52:25,167 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/f8b613fb31c3408da632c3881eae7ba4/FLAGdad339c8d [2020-06-22 04:52:25,499 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 04:52:25,500 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 04:52:25,506 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/f8b613fb31c3408da632c3881eae7ba4/FLAGdad339c8d [2020-06-22 04:52:25,914 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/f8b613fb31c3408da632c3881eae7ba4 [2020-06-22 04:52:25,925 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 04:52:25,927 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 04:52:25,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 04:52:25,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 04:52:25,931 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 04:52:25,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 04:52:25" (1/1) ... [2020-06-22 04:52:25,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@610ac2ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:52:25, skipping insertion in model container [2020-06-22 04:52:25,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 04:52:25" (1/1) ... [2020-06-22 04:52:25,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 04:52:25,959 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 04:52:26,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 04:52:26,118 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 04:52:26,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 04:52:26,222 INFO L195 MainTranslator]: Completed translation [2020-06-22 04:52:26,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:52:26 WrapperNode [2020-06-22 04:52:26,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 04:52:26,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 04:52:26,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 04:52:26,224 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 04:52:26,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:52:26" (1/1) ... [2020-06-22 04:52:26,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:52:26" (1/1) ... [2020-06-22 04:52:26,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 04:52:26,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 04:52:26,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 04:52:26,259 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 04:52:26,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:52:26" (1/1) ... [2020-06-22 04:52:26,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:52:26" (1/1) ... [2020-06-22 04:52:26,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:52:26" (1/1) ... [2020-06-22 04:52:26,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:52:26" (1/1) ... [2020-06-22 04:52:26,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:52:26" (1/1) ... [2020-06-22 04:52:26,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:52:26" (1/1) ... [2020-06-22 04:52:26,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:52:26" (1/1) ... [2020-06-22 04:52:26,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 04:52:26,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 04:52:26,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 04:52:26,280 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 04:52:26,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:52:26" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 04:52:26,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 04:52:26,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 04:52:26,478 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 04:52:26,478 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 04:52:26,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:52:26 BoogieIcfgContainer [2020-06-22 04:52:26,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 04:52:26,480 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 04:52:26,480 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 04:52:26,483 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 04:52:26,484 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:52:26" (1/1) ... [2020-06-22 04:52:26,498 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-06-22 04:52:26,500 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 04:52:26,501 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 04:52:26,502 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 04:52:26,502 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 04:52:26,504 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 04:52:26,505 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 04:52:26,505 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 04:52:26,520 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 04:52:26,534 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 04:52:26,539 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 04:52:26,541 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 04:52:26,551 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 04:52:26,553 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-06-22 04:52:26,554 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 04:52:26,554 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 04:52:26,554 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 04:52:26,555 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 04:52:26,555 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-06-22 04:52:26,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 04:52:26 BasicIcfg [2020-06-22 04:52:26,556 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 04:52:26,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 04:52:26,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 04:52:26,560 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 04:52:26,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 04:52:25" (1/4) ... [2020-06-22 04:52:26,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@737124ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 04:52:26, skipping insertion in model container [2020-06-22 04:52:26,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:52:26" (2/4) ... [2020-06-22 04:52:26,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@737124ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 04:52:26, skipping insertion in model container [2020-06-22 04:52:26,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:52:26" (3/4) ... [2020-06-22 04:52:26,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@737124ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:52:26, skipping insertion in model container [2020-06-22 04:52:26,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 04:52:26" (4/4) ... [2020-06-22 04:52:26,564 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 04:52:26,573 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 04:52:26,580 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 04:52:26,597 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 04:52:26,625 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 04:52:26,626 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 04:52:26,626 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 04:52:26,627 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 04:52:26,627 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 04:52:26,627 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 04:52:26,627 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 04:52:26,627 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 04:52:26,627 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 04:52:26,641 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 04:52:26,647 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 04:52:26,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 04:52:26,698 INFO L451 ceAbstractionStarter]: At program point L19-2(lines 17 23) the Hoare annotation is: true [2020-06-22 04:52:26,698 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 04:52:26,699 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 22) no Hoare annotation was computed. [2020-06-22 04:52:26,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:52:26 BasicIcfg [2020-06-22 04:52:26,707 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 04:52:26,707 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 04:52:26,707 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 04:52:26,711 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 04:52:26,712 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:52:26,712 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 04:52:25" (1/5) ... [2020-06-22 04:52:26,712 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54341c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 04:52:26, skipping insertion in model container [2020-06-22 04:52:26,713 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:52:26,713 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:52:26" (2/5) ... [2020-06-22 04:52:26,713 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54341c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 04:52:26, skipping insertion in model container [2020-06-22 04:52:26,713 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:52:26,713 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:52:26" (3/5) ... [2020-06-22 04:52:26,714 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54341c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 04:52:26, skipping insertion in model container [2020-06-22 04:52:26,714 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:52:26,714 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 04:52:26" (4/5) ... [2020-06-22 04:52:26,714 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54341c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 04:52:26, skipping insertion in model container [2020-06-22 04:52:26,715 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:52:26,715 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:52:26" (5/5) ... [2020-06-22 04:52:26,716 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 04:52:26,742 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 04:52:26,742 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 04:52:26,742 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 04:52:26,742 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 04:52:26,742 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 04:52:26,743 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 04:52:26,743 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 04:52:26,743 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 04:52:26,743 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 04:52:26,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 04:52:26,763 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 04:52:26,763 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:52:26,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:52:26,769 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 04:52:26,769 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 04:52:26,769 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 04:52:26,769 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 04:52:26,770 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 04:52:26,770 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:52:26,770 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:52:26,770 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 04:52:26,770 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 04:52:26,775 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [25] ULTIMATE.startENTRY-->L19-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 4#L19-2true [2020-06-22 04:52:26,776 INFO L796 eck$LassoCheckResult]: Loop: 4#L19-2true [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~y~0_5 (+ v_ULTIMATE.start_main_~y~0_6 (- 1))) (<= 0 v_ULTIMATE.start_main_~x~0_5) (<= 0 v_ULTIMATE.start_main_~y~0_6)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 5#L19true [34] L19-->L19-2: Formula: (>= v_ULTIMATE.start_main_~y~0_9 0) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9} AuxVars[] AssignedVars[] 4#L19-2true [2020-06-22 04:52:26,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:52:26,782 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2020-06-22 04:52:26,784 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:52:26,784 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:52:26,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:26,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:52:26,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:26,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:52:26,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1863, now seen corresponding path program 1 times [2020-06-22 04:52:26,848 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:52:26,849 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:52:26,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:26,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:52:26,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:26,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:52:26,862 INFO L82 PathProgramCache]: Analyzing trace with hash 54718, now seen corresponding path program 1 times [2020-06-22 04:52:26,863 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:52:26,863 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:52:26,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:26,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:52:26,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:26,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:26,934 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:52:26,935 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:52:26,936 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:52:26,936 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:52:26,936 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 04:52:26,936 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:52:26,936 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:52:26,936 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:52:26,936 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 04:52:26,937 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:52:26,937 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:52:26,957 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 04:52:26,966 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 04:52:26,971 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 04:52:26,979 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 04:52:27,062 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:52:27,063 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:52:27,076 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:52:27,076 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:52:27,110 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:52:27,111 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:52:27,118 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:52:27,118 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:52:27,145 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:52:27,145 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:52:27,150 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:52:27,150 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:52:27,180 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 04:52:27,180 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:52:27,235 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 04:52:27,237 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:52:27,237 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:52:27,237 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:52:27,237 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:52:27,237 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 04:52:27,238 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 04:52:27,238 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:52:27,238 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:52:27,238 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 04:52:27,238 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:52:27,238 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:52:27,240 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 04:52:27,245 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 04:52:27,248 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 04:52:27,258 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 04:52:27,320 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:52:27,326 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 04:52:27,327 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 04:52:27,329 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:52:27,329 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:52:27,329 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:52:27,330 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:52:27,334 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 04:52:27,335 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 04:52:27,343 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:52:27,344 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 04:52:27,345 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:52:27,345 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:52:27,345 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:52:27,345 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:52:27,348 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 04:52:27,348 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 04:52:27,357 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:52:27,357 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 04:52:27,358 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:52:27,358 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:52:27,358 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:52:27,359 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:52:27,359 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:52:27,360 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:52:27,360 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:52:27,365 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 04:52:27,369 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 04:52:27,369 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 04:52:27,371 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 04:52:27,372 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 04:52:27,372 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 04:52:27,372 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-06-22 04:52:27,374 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 04:52:27,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:52:27,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:52:27,413 WARN L254 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 04:52:27,414 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:52:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:52:27,425 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 04:52:27,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:52:27,449 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 04:52:27,461 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 04:52:27,466 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 04:52:27,468 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-06-22 04:52:27,500 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 8 states and 10 transitions. Complement of second has 4 states. [2020-06-22 04:52:27,501 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 04:52:27,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 04:52:27,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-06-22 04:52:27,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 04:52:27,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:52:27,507 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 04:52:27,507 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:52:27,507 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 04:52:27,507 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:52:27,513 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 10 transitions. [2020-06-22 04:52:27,514 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 04:52:27,517 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 7 states and 9 transitions. [2020-06-22 04:52:27,518 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 04:52:27,519 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-06-22 04:52:27,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2020-06-22 04:52:27,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 04:52:27,520 INFO L706 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-06-22 04:52:27,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2020-06-22 04:52:27,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2020-06-22 04:52:27,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-06-22 04:52:27,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2020-06-22 04:52:27,548 INFO L729 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-06-22 04:52:27,548 INFO L609 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-06-22 04:52:27,548 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 04:52:27,549 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2020-06-22 04:52:27,549 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 04:52:27,549 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:52:27,549 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:52:27,550 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-22 04:52:27,550 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 04:52:27,550 INFO L794 eck$LassoCheckResult]: Stem: 43#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L19-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 44#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~y~0_5 (+ v_ULTIMATE.start_main_~y~0_6 (- 1))) (<= 0 v_ULTIMATE.start_main_~x~0_5) (<= 0 v_ULTIMATE.start_main_~y~0_6)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 48#L19 [30] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 |v_ULTIMATE.start_main_#t~nondet0_3|) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1))) (< v_ULTIMATE.start_main_~y~0_8 0)) InVars {ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_3|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 45#L19-2 [2020-06-22 04:52:27,551 INFO L796 eck$LassoCheckResult]: Loop: 45#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~y~0_5 (+ v_ULTIMATE.start_main_~y~0_6 (- 1))) (<= 0 v_ULTIMATE.start_main_~x~0_5) (<= 0 v_ULTIMATE.start_main_~y~0_6)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 46#L19 [34] L19-->L19-2: Formula: (>= v_ULTIMATE.start_main_~y~0_9 0) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9} AuxVars[] AssignedVars[] 45#L19-2 [2020-06-22 04:52:27,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:52:27,551 INFO L82 PathProgramCache]: Analyzing trace with hash 54714, now seen corresponding path program 1 times [2020-06-22 04:52:27,551 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:52:27,551 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:52:27,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:27,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:52:27,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:27,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:27,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:52:27,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1863, now seen corresponding path program 2 times [2020-06-22 04:52:27,564 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:52:27,564 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:52:27,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:27,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:52:27,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:27,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:27,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:52:27,570 INFO L82 PathProgramCache]: Analyzing trace with hash 52581056, now seen corresponding path program 1 times [2020-06-22 04:52:27,571 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:52:27,571 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:52:27,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:27,572 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 04:52:27,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:27,606 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:52:27,606 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:52:27,606 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:52:27,606 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:52:27,606 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 04:52:27,606 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:52:27,606 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:52:27,607 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:52:27,607 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 04:52:27,607 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:52:27,607 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:52:27,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:52:27,612 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 04:52:27,615 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 04:52:27,618 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 04:52:27,665 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:52:27,665 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:52:27,669 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:52:27,670 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:52:27,697 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:52:27,697 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 04:52:27,702 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:52:27,702 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:52:27,729 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:52:27,729 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 04:52:27,735 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:52:27,735 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:52:27,761 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:52:27,761 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:52:27,766 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:52:27,766 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:52:27,795 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 04:52:27,796 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:52:27,848 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 04:52:27,851 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:52:27,851 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:52:27,851 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:52:27,851 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:52:27,851 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 04:52:27,852 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 04:52:27,852 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:52:27,852 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:52:27,852 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 04:52:27,852 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:52:27,852 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:52:27,854 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 04:52:27,857 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 04:52:27,861 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 04:52:27,866 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 04:52:27,927 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:52:27,927 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 04:52:27,928 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 04:52:27,929 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:52:27,929 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:52:27,929 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:52:27,929 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:52:27,931 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 04:52:27,931 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 04:52:27,936 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:52:27,936 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 04:52:27,937 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:52:27,938 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:52:27,938 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:52:27,938 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:52:27,940 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 04:52:27,940 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 04:52:27,946 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:52:27,946 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 04:52:27,947 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:52:27,947 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:52:27,947 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:52:27,947 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:52:27,947 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:52:27,948 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:52:27,948 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:52:27,949 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:52:27,949 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 04:52:27,950 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:52:27,950 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:52:27,951 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:52:27,951 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:52:27,951 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:52:27,952 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:52:27,952 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:52:27,956 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 04:52:27,959 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 04:52:27,959 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 04:52:27,960 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 04:52:27,960 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 04:52:27,960 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 04:52:27,960 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-06-22 04:52:27,961 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 04:52:27,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:52:27,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:52:27,991 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 04:52:27,992 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:52:28,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:52:28,001 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 04:52:28,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:52:28,010 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 04:52:28,011 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 04:52:28,011 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 04:52:28,011 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-06-22 04:52:28,025 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 10 states and 14 transitions. Complement of second has 5 states. [2020-06-22 04:52:28,025 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 04:52:28,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 04:52:28,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-06-22 04:52:28,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 04:52:28,027 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:52:28,027 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2020-06-22 04:52:28,027 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:52:28,027 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 4 letters. [2020-06-22 04:52:28,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:52:28,029 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 14 transitions. [2020-06-22 04:52:28,030 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 04:52:28,030 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 12 transitions. [2020-06-22 04:52:28,030 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 04:52:28,031 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-06-22 04:52:28,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2020-06-22 04:52:28,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 04:52:28,031 INFO L706 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2020-06-22 04:52:28,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2020-06-22 04:52:28,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-06-22 04:52:28,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-06-22 04:52:28,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2020-06-22 04:52:28,033 INFO L729 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2020-06-22 04:52:28,033 INFO L609 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2020-06-22 04:52:28,033 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 04:52:28,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2020-06-22 04:52:28,034 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 04:52:28,034 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:52:28,034 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:52:28,035 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2020-06-22 04:52:28,035 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 04:52:28,035 INFO L794 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L19-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_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_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 96#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~y~0_5 (+ v_ULTIMATE.start_main_~y~0_6 (- 1))) (<= 0 v_ULTIMATE.start_main_~x~0_5) (<= 0 v_ULTIMATE.start_main_~y~0_6)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 97#L19 [30] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 |v_ULTIMATE.start_main_#t~nondet0_3|) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1))) (< v_ULTIMATE.start_main_~y~0_8 0)) InVars {ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_3|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 102#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~y~0_5 (+ v_ULTIMATE.start_main_~y~0_6 (- 1))) (<= 0 v_ULTIMATE.start_main_~x~0_5) (<= 0 v_ULTIMATE.start_main_~y~0_6)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 103#L19 [30] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 |v_ULTIMATE.start_main_#t~nondet0_3|) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1))) (< v_ULTIMATE.start_main_~y~0_8 0)) InVars {ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_3|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 101#L19-2 [2020-06-22 04:52:28,035 INFO L796 eck$LassoCheckResult]: Loop: 101#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~y~0_5 (+ v_ULTIMATE.start_main_~y~0_6 (- 1))) (<= 0 v_ULTIMATE.start_main_~x~0_5) (<= 0 v_ULTIMATE.start_main_~y~0_6)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 99#L19 [30] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 |v_ULTIMATE.start_main_#t~nondet0_3|) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1))) (< v_ULTIMATE.start_main_~y~0_8 0)) InVars {ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_3|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 101#L19-2 [2020-06-22 04:52:28,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:52:28,036 INFO L82 PathProgramCache]: Analyzing trace with hash 52581052, now seen corresponding path program 2 times [2020-06-22 04:52:28,036 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:52:28,036 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:52:28,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:28,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:52:28,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:28,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:52:28,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1859, now seen corresponding path program 1 times [2020-06-22 04:52:28,048 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:52:28,048 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:52:28,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:28,049 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 04:52:28,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:28,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:28,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:52:28,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1009215682, now seen corresponding path program 3 times [2020-06-22 04:52:28,056 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:52:28,057 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:52:28,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:28,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:52:28,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:28,103 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:52:28,103 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:52:28,103 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:52:28,103 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:52:28,103 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 04:52:28,104 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:52:28,104 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:52:28,104 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:52:28,104 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 04:52:28,104 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:52:28,104 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:52:28,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:52:28,124 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 04:52:28,127 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 04:52:28,135 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 04:52:28,190 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:52:28,190 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:52:28,195 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:52:28,195 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:52:28,201 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:52:28,201 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0, ULTIMATE.start_main_~y~0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0, ULTIMATE.start_main_~y~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:52:28,230 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:52:28,230 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:52:28,258 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:52:28,258 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:52:28,264 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:52:28,265 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:52:28,298 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 04:52:28,298 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:52:28,329 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 04:52:28,331 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:52:28,331 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:52:28,331 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:52:28,331 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:52:28,332 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 04:52:28,332 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 04:52:28,332 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:52:28,332 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:52:28,332 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 04:52:28,332 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:52:28,332 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:52:28,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:52:28,343 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 04:52:28,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:52:28,353 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 04:52:28,414 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:52:28,415 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 04:52:28,415 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 04:52:28,416 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:52:28,416 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:52:28,416 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:52:28,416 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:52:28,416 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:52:28,417 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:52:28,417 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:52:28,420 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:52:28,421 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 04:52:28,422 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:52:28,422 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:52:28,422 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:52:28,422 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:52:28,424 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 04:52:28,424 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 04:52:28,428 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:52:28,429 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 04:52:28,429 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:52:28,429 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:52:28,430 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:52:28,430 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:52:28,430 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:52:28,430 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:52:28,430 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:52:28,435 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 04:52:28,438 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 04:52:28,438 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 04:52:28,439 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 04:52:28,439 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 04:52:28,439 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 04:52:28,439 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-06-22 04:52:28,439 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 04:52:28,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:52:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:52:28,489 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 04:52:28,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:52:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:52:28,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 04:52:28,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:52:28,512 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 04:52:28,526 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 04:52:28,526 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 04:52:28,527 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-06-22 04:52:28,543 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 9 states and 12 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 13 states and 18 transitions. Complement of second has 4 states. [2020-06-22 04:52:28,544 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 04:52:28,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 04:52:28,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-06-22 04:52:28,545 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2020-06-22 04:52:28,545 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:52:28,545 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2020-06-22 04:52:28,545 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:52:28,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2020-06-22 04:52:28,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:52:28,547 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2020-06-22 04:52:28,548 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 04:52:28,548 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2020-06-22 04:52:28,549 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 04:52:28,549 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 04:52:28,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 04:52:28,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 04:52:28,549 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 04:52:28,549 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 04:52:28,549 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 04:52:28,549 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 04:52:28,549 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 04:52:28,550 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 04:52:28,550 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 04:52:28,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 04:52:28 BasicIcfg [2020-06-22 04:52:28,556 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 04:52:28,556 INFO L168 Benchmark]: Toolchain (without parser) took 2630.71 ms. Allocated memory was 649.6 MB in the beginning and 709.9 MB in the end (delta: 60.3 MB). Free memory was 565.4 MB in the beginning and 442.9 MB in the end (delta: 122.5 MB). Peak memory consumption was 182.8 MB. Max. memory is 50.3 GB. [2020-06-22 04:52:28,558 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 586.9 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 04:52:28,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.35 ms. Allocated memory was 649.6 MB in the beginning and 709.9 MB in the end (delta: 60.3 MB). Free memory was 565.4 MB in the beginning and 676.2 MB in the end (delta: -110.8 MB). Peak memory consumption was 30.9 MB. Max. memory is 50.3 GB. [2020-06-22 04:52:28,559 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.45 ms. Allocated memory is still 709.9 MB. Free memory was 676.2 MB in the beginning and 674.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 04:52:28,560 INFO L168 Benchmark]: Boogie Preprocessor took 19.85 ms. Allocated memory is still 709.9 MB. Free memory was 674.8 MB in the beginning and 673.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 04:52:28,560 INFO L168 Benchmark]: RCFGBuilder took 200.48 ms. Allocated memory is still 709.9 MB. Free memory was 673.5 MB in the beginning and 658.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. [2020-06-22 04:52:28,561 INFO L168 Benchmark]: BlockEncodingV2 took 75.43 ms. Allocated memory is still 709.9 MB. Free memory was 658.8 MB in the beginning and 654.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. [2020-06-22 04:52:28,561 INFO L168 Benchmark]: TraceAbstraction took 150.23 ms. Allocated memory is still 709.9 MB. Free memory was 653.4 MB in the beginning and 645.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-06-22 04:52:28,562 INFO L168 Benchmark]: BuchiAutomizer took 1848.71 ms. Allocated memory is still 709.9 MB. Free memory was 645.3 MB in the beginning and 442.9 MB in the end (delta: 202.5 MB). Peak memory consumption was 202.5 MB. Max. memory is 50.3 GB. [2020-06-22 04:52:28,566 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 586.9 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 295.35 ms. Allocated memory was 649.6 MB in the beginning and 709.9 MB in the end (delta: 60.3 MB). Free memory was 565.4 MB in the beginning and 676.2 MB in the end (delta: -110.8 MB). Peak memory consumption was 30.9 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.45 ms. Allocated memory is still 709.9 MB. Free memory was 676.2 MB in the beginning and 674.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.85 ms. Allocated memory is still 709.9 MB. Free memory was 674.8 MB in the beginning and 673.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 200.48 ms. Allocated memory is still 709.9 MB. Free memory was 673.5 MB in the beginning and 658.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 75.43 ms. Allocated memory is still 709.9 MB. Free memory was 658.8 MB in the beginning and 654.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. * TraceAbstraction took 150.23 ms. Allocated memory is still 709.9 MB. Free memory was 653.4 MB in the beginning and 645.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1848.71 ms. Allocated memory is still 709.9 MB. Free memory was 645.3 MB in the beginning and 442.9 MB in the end (delta: 202.5 MB). Peak memory consumption was 202.5 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function y and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. One nondeterministic module has affine ranking function 2 * x + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 9 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 17 SDslu, 1 SDs, 0 SdLazy, 27 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax182 hnf100 lsp38 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq155 hnf93 smp100 dnf100 smp100 tf113 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 04:52:22.716 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 04:52:28.799 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check