NO Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 10:21:52,703 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 10:21:52,706 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 10:21:52,717 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 10:21:52,717 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 10:21:52,718 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 10:21:52,719 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 10:21:52,721 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 10:21:52,722 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 10:21:52,723 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 10:21:52,724 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 10:21:52,724 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 10:21:52,725 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 10:21:52,726 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 10:21:52,727 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 10:21:52,727 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 10:21:52,728 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 10:21:52,730 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 10:21:52,732 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 10:21:52,733 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 10:21:52,734 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 10:21:52,735 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 10:21:52,737 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 10:21:52,738 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 10:21:52,738 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 10:21:52,739 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 10:21:52,739 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 10:21:52,740 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 10:21:52,740 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 10:21:52,741 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 10:21:52,741 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 10:21:52,742 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 10:21:52,743 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 10:21:52,743 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 10:21:52,744 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 10:21:52,744 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 10:21:52,744 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 10:21:52,745 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 10:21:52,746 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 10:21:52,746 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 10:21:52,760 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 10:21:52,761 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 10:21:52,762 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 10:21:52,762 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 10:21:52,762 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 10:21:52,762 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 10:21:52,762 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 10:21:52,762 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 10:21:52,763 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 10:21:52,763 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 10:21:52,763 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 10:21:52,763 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 10:21:52,763 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 10:21:52,763 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 10:21:52,763 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:21:52,764 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 10:21:52,764 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 10:21:52,764 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 10:21:52,764 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 10:21:52,764 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 10:21:52,764 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 10:21:52,765 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 10:21:52,765 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 10:21:52,765 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 10:21:52,765 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 10:21:52,765 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 10:21:52,765 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 10:21:52,766 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 10:21:52,766 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 10:21:52,792 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 10:21:52,805 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 10:21:52,809 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 10:21:52,811 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 10:21:52,811 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 10:21:52,812 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 10:21:52,878 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/b16b44dd11c445d185c0187de1361ad7/FLAG3a7573986 [2020-06-22 10:21:53,210 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 10:21:53,211 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 10:21:53,217 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/b16b44dd11c445d185c0187de1361ad7/FLAG3a7573986 [2020-06-22 10:21:53,625 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/b16b44dd11c445d185c0187de1361ad7 [2020-06-22 10:21:53,637 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 10:21:53,638 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 10:21:53,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 10:21:53,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 10:21:53,643 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 10:21:53,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 10:21:53" (1/1) ... [2020-06-22 10:21:53,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54bae141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:21:53, skipping insertion in model container [2020-06-22 10:21:53,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 10:21:53" (1/1) ... [2020-06-22 10:21:53,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 10:21:53,673 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 10:21:53,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 10:21:53,831 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 10:21:53,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 10:21:53,922 INFO L195 MainTranslator]: Completed translation [2020-06-22 10:21:53,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:21:53 WrapperNode [2020-06-22 10:21:53,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 10:21:53,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 10:21:53,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 10:21:53,924 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 10:21:53,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:21:53" (1/1) ... [2020-06-22 10:21:53,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:21:53" (1/1) ... [2020-06-22 10:21:53,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 10:21:53,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 10:21:53,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 10:21:53,959 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 10:21:53,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:21:53" (1/1) ... [2020-06-22 10:21:53,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:21:53" (1/1) ... [2020-06-22 10:21:53,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:21:53" (1/1) ... [2020-06-22 10:21:53,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:21:53" (1/1) ... [2020-06-22 10:21:53,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:21:53" (1/1) ... [2020-06-22 10:21:53,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:21:53" (1/1) ... [2020-06-22 10:21:53,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:21:53" (1/1) ... [2020-06-22 10:21:53,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 10:21:53,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 10:21:53,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 10:21:53,978 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 10:21:53,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:21:53" (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 10:21:54,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 10:21:54,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 10:21:54,150 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 10:21:54,150 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 10:21:54,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:21:54 BoogieIcfgContainer [2020-06-22 10:21:54,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 10:21:54,152 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 10:21:54,152 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 10:21:54,154 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 10:21:54,155 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:21:54" (1/1) ... [2020-06-22 10:21:54,168 INFO L313 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2020-06-22 10:21:54,170 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 10:21:54,171 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 10:21:54,171 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 10:21:54,171 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 10:21:54,173 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 10:21:54,174 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 10:21:54,174 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 10:21:54,191 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 10:21:54,204 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 10:21:54,209 INFO L70 emoveInfeasibleEdges]: Removed 5 edges and 4 locations because of local infeasibility [2020-06-22 10:21:54,211 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 10:21:54,213 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 10:21:54,214 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 10:21:54,216 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 10:21:54,216 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 10:21:54,216 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 10:21:54,216 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 10:21:54,216 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 3 edges [2020-06-22 10:21:54,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 10:21:54 BasicIcfg [2020-06-22 10:21:54,217 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 10:21:54,218 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 10:21:54,218 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 10:21:54,222 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 10:21:54,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 10:21:53" (1/4) ... [2020-06-22 10:21:54,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d4bba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 10:21:54, skipping insertion in model container [2020-06-22 10:21:54,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:21:53" (2/4) ... [2020-06-22 10:21:54,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d4bba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 10:21:54, skipping insertion in model container [2020-06-22 10:21:54,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:21:54" (3/4) ... [2020-06-22 10:21:54,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d4bba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:21:54, skipping insertion in model container [2020-06-22 10:21:54,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 10:21:54" (4/4) ... [2020-06-22 10:21:54,226 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 10:21:54,236 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 10:21:54,243 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 10:21:54,260 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 10:21:54,289 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 10:21:54,289 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 10:21:54,290 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 10:21:54,290 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 10:21:54,290 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 10:21:54,290 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 10:21:54,290 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 10:21:54,290 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 10:21:54,291 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 10:21:54,304 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-06-22 10:21:54,309 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 10:21:54,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-06-22 10:21:54,364 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 10:21:54,364 INFO L451 ceAbstractionStarter]: At program point L9-2(lines 9 11) the Hoare annotation is: true [2020-06-22 10:21:54,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:21:54 BasicIcfg [2020-06-22 10:21:54,372 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 10:21:54,373 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 10:21:54,373 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 10:21:54,376 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 10:21:54,377 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 10:21:54,377 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 10:21:53" (1/5) ... [2020-06-22 10:21:54,378 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e8a19ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 10:21:54, skipping insertion in model container [2020-06-22 10:21:54,378 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 10:21:54,378 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:21:53" (2/5) ... [2020-06-22 10:21:54,378 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e8a19ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 10:21:54, skipping insertion in model container [2020-06-22 10:21:54,379 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 10:21:54,379 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:21:54" (3/5) ... [2020-06-22 10:21:54,379 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e8a19ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 10:21:54, skipping insertion in model container [2020-06-22 10:21:54,379 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 10:21:54,379 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 10:21:54" (4/5) ... [2020-06-22 10:21:54,380 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e8a19ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 10:21:54, skipping insertion in model container [2020-06-22 10:21:54,380 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 10:21:54,380 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:21:54" (5/5) ... [2020-06-22 10:21:54,382 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 10:21:54,407 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 10:21:54,408 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 10:21:54,408 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 10:21:54,408 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 10:21:54,408 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 10:21:54,408 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 10:21:54,409 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 10:21:54,409 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 10:21:54,409 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 10:21:54,412 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-22 10:21:54,428 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 10:21:54,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 10:21:54,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 10:21:54,434 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 10:21:54,434 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 10:21:54,435 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 10:21:54,435 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-22 10:21:54,435 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 10:21:54,435 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 10:21:54,435 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 10:21:54,436 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 10:21:54,436 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 10:21:54,441 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [18] ULTIMATE.startENTRY-->L9-2: Formula: (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 4#L9-2true [2020-06-22 10:21:54,441 INFO L796 eck$LassoCheckResult]: Loop: 4#L9-2true [26] L9-2-->L9-2: Formula: (and (< 0 v_rep~unnamed0~0~true_1) (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 (- 1)))) InVars {v_rep~unnamed0~0~true_1=v_rep~unnamed0~0~true_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{v_rep~unnamed0~0~true_1=v_rep~unnamed0~0~true_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 4#L9-2true [2020-06-22 10:21:54,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:21:54,447 INFO L82 PathProgramCache]: Analyzing trace with hash 49, now seen corresponding path program 1 times [2020-06-22 10:21:54,449 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 10:21:54,450 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 10:21:54,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:21:54,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 10:21:54,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:21:54,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:21:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:21:54,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:21:54,517 INFO L82 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times [2020-06-22 10:21:54,517 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 10:21:54,517 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 10:21:54,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:21:54,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 10:21:54,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:21:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:21:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:21:54,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:21:54,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1545, now seen corresponding path program 1 times [2020-06-22 10:21:54,529 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 10:21:54,529 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 10:21:54,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:21:54,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 10:21:54,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:21:54,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:21:54,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:21:54,585 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 10:21:54,586 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 10:21:54,586 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 10:21:54,587 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 10:21:54,587 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 10:21:54,587 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:21:54,587 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 10:21:54,587 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 10:21:54,587 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 10:21:54,588 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 10:21:54,588 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 10:21:54,607 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 10:21:54,617 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 10:21:54,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 10:21:54,630 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 10:21:54,697 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 10:21:54,697 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 10:21:54,703 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:21:54,704 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:21:54,737 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 10:21:54,737 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 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 10:21:54,743 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:21:54,744 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:21:54,772 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 10:21:54,772 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 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 10:21:54,777 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:21:54,777 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:21:54,804 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 10:21:54,805 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_2=1} Honda state: {v_rep~unnamed0~0~true_2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 10:21:54,809 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:21:54,809 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 10:21:54,840 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 10:21:54,840 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:21:54,876 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 10:21:54,876 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=6}, {ULTIMATE.start_main_~i~0=-6}, {ULTIMATE.start_main_~i~0=-1}] Lambdas: [2, 1, 1] Nus: [1, 0] [2020-06-22 10:21:54,909 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 10:21:54,909 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 10:21:54,909 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 10:21:54,910 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 10:21:54,910 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 10:21:54,910 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:21:54,910 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 10:21:54,910 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 10:21:54,910 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-06-22 10:21:54,910 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 10:21:54,910 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 10:21:54,913 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 10:21:54,920 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 10:21:54,924 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 10:21:54,928 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 10:21:54,931 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 10:21:54,934 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 10:21:54,997 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 10:21:54,997 INFO L412 LassoAnalysis]: Checking for nontermination... 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 10:21:55,003 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:21:55,003 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:21:55,031 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 10:21:55,032 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_2=0} Honda state: {v_rep~unnamed0~0~false_2=0} 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 10:21:55,037 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:21:55,037 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:21:55,065 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 10:21:55,065 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 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 10:21:55,071 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:21:55,072 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:21:55,099 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 10:21:55,099 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 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 10:21:55,106 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:21:55,106 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:21:55,110 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 10:21:55,110 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 10:21:55,137 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:21:55,138 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:21:55,141 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 10:21:55,141 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=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 10:21:55,169 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:21:55,169 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:21:55,199 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 10:21:55,199 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:21:55,233 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 10:21:55,233 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=6}, {ULTIMATE.start_main_~i~0=-6}, {ULTIMATE.start_main_~i~0=-1}] Lambdas: [2, 1, 1] Nus: [1, 0] [2020-06-22 10:21:55,269 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 10:21:55,271 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 10:21:55,272 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 10:21:55,272 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 10:21:55,273 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 10:21:55,273 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 10:21:55,273 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 10:21:55,274 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 10:21:55,274 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 10:21:55,275 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 10:21:55,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 10:21:55 BasicIcfg [2020-06-22 10:21:55,287 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 10:21:55,288 INFO L168 Benchmark]: Toolchain (without parser) took 1650.68 ms. Allocated memory was 649.6 MB in the beginning and 664.3 MB in the end (delta: 14.7 MB). Free memory was 565.2 MB in the beginning and 517.3 MB in the end (delta: 47.9 MB). Peak memory consumption was 62.6 MB. Max. memory is 50.3 GB. [2020-06-22 10:21:55,290 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 586.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 10:21:55,290 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.77 ms. Allocated memory was 649.6 MB in the beginning and 664.3 MB in the end (delta: 14.7 MB). Free memory was 565.2 MB in the beginning and 630.8 MB in the end (delta: -65.6 MB). Peak memory consumption was 30.2 MB. Max. memory is 50.3 GB. [2020-06-22 10:21:55,291 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.51 ms. Allocated memory is still 664.3 MB. Free memory was 630.8 MB in the beginning and 629.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 10:21:55,291 INFO L168 Benchmark]: Boogie Preprocessor took 18.69 ms. Allocated memory is still 664.3 MB. Free memory was 629.4 MB in the beginning and 626.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. [2020-06-22 10:21:55,292 INFO L168 Benchmark]: RCFGBuilder took 174.21 ms. Allocated memory is still 664.3 MB. Free memory was 626.3 MB in the beginning and 614.7 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 50.3 GB. [2020-06-22 10:21:55,293 INFO L168 Benchmark]: BlockEncodingV2 took 65.28 ms. Allocated memory is still 664.3 MB. Free memory was 614.7 MB in the beginning and 610.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. [2020-06-22 10:21:55,293 INFO L168 Benchmark]: TraceAbstraction took 153.90 ms. Allocated memory is still 664.3 MB. Free memory was 609.3 MB in the beginning and 601.1 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. [2020-06-22 10:21:55,294 INFO L168 Benchmark]: BuchiAutomizer took 914.82 ms. Allocated memory is still 664.3 MB. Free memory was 601.1 MB in the beginning and 517.3 MB in the end (delta: 83.8 MB). Peak memory consumption was 83.8 MB. Max. memory is 50.3 GB. [2020-06-22 10:21:55,298 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 6 locations, 7 edges - StatisticsResult: Encoded RCFG 2 locations, 3 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 586.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 283.77 ms. Allocated memory was 649.6 MB in the beginning and 664.3 MB in the end (delta: 14.7 MB). Free memory was 565.2 MB in the beginning and 630.8 MB in the end (delta: -65.6 MB). Peak memory consumption was 30.2 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.51 ms. Allocated memory is still 664.3 MB. Free memory was 630.8 MB in the beginning and 629.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.69 ms. Allocated memory is still 664.3 MB. Free memory was 629.4 MB in the beginning and 626.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 174.21 ms. Allocated memory is still 664.3 MB. Free memory was 626.3 MB in the beginning and 614.7 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 65.28 ms. Allocated memory is still 664.3 MB. Free memory was 614.7 MB in the beginning and 610.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. * TraceAbstraction took 153.90 ms. Allocated memory is still 664.3 MB. Free memory was 609.3 MB in the beginning and 601.1 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 914.82 ms. Allocated memory is still 664.3 MB. Free memory was 601.1 MB in the beginning and 517.3 MB in the end (delta: 83.8 MB). Peak memory consumption was 83.8 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false * 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: 9]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 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=2occurred 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp27 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq200 hnf100 smp100 dnf100 smp100 tf116 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 9]: Nontermination argument in form of an infinite program execution. [2020-06-22 10:21:55,308 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 10:21:55,308 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 10:21:55,309 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 10:21:55,309 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 10:21:55,309 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 10:21:55,310 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 10:21:55,310 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 10:21:55,310 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 10:21:55,311 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 10:21:55,311 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 10:21:55,311 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 10:21:55,311 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 10:21:55,312 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 10:21:55,312 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 10:21:55,312 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 10:21:55,313 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 10:21:55,313 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 10:21:55,313 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 10:21:55,314 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 10:21:55,314 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false Nontermination argument in form of an infinite execution {|ULTIMATE.start_main_#t~nondet0|=0, ULTIMATE.start_main_~i~0=0, ~unnamed0~0~false=0, ~unnamed0~0~true=1, |ULTIMATE.start_main_#res|=0} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@461b2ca1=0, ~unnamed0~0~true=1, \result=0, ~unnamed0~0~false=0, i=0} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@461b2ca1=0, ~unnamed0~0~true=1, \result=0, ~unnamed0~0~false=0, i=-1} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@461b2ca1=0, ~unnamed0~0~true=1, \result=0, ~unnamed0~0~false=0, i=-2} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@461b2ca1=0, ~unnamed0~0~true=1, \result=0, ~unnamed0~0~false=0, i=-3} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@461b2ca1=0, ~unnamed0~0~true=1, \result=0, ~unnamed0~0~false=0, i=-4} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 3GEVs Lambdas: [2, 1, 1] Mus: [1, 0] - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() Loop: [L9] COND TRUE \read(true) [L10] i = i-1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-22 10:21:50.382 ----------------------------------------------- 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 10:21:55.538 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check