NO Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-21 22:40:39,703 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-21 22:40:39,705 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-21 22:40:39,716 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-21 22:40:39,716 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-21 22:40:39,717 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-21 22:40:39,718 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-21 22:40:39,720 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-21 22:40:39,721 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-21 22:40:39,722 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-21 22:40:39,723 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-21 22:40:39,723 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-21 22:40:39,724 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-21 22:40:39,725 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-21 22:40:39,726 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-21 22:40:39,727 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-21 22:40:39,728 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-21 22:40:39,729 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-21 22:40:39,731 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-21 22:40:39,733 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-21 22:40:39,734 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-21 22:40:39,735 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-21 22:40:39,737 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-21 22:40:39,737 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-21 22:40:39,737 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-21 22:40:39,738 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-21 22:40:39,739 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-21 22:40:39,740 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-21 22:40:39,740 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-21 22:40:39,740 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-21 22:40:39,741 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-21 22:40:39,742 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-21 22:40:39,743 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-21 22:40:39,743 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-21 22:40:39,744 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-21 22:40:39,744 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-21 22:40:39,744 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-21 22:40:39,745 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-21 22:40:39,746 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-21 22:40:39,746 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-21 22:40:39,760 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-21 22:40:39,761 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-21 22:40:39,762 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-21 22:40:39,762 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-21 22:40:39,762 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-21 22:40:39,762 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-21 22:40:39,763 INFO L133 SettingsManager]: * Use SBE=true [2020-06-21 22:40:39,763 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-21 22:40:39,763 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-21 22:40:39,763 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-21 22:40:39,763 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-21 22:40:39,763 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-21 22:40:39,764 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-21 22:40:39,764 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-21 22:40:39,764 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:40:39,764 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-21 22:40:39,764 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-21 22:40:39,764 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-21 22:40:39,765 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-21 22:40:39,765 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-21 22:40:39,765 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-21 22:40:39,765 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-21 22:40:39,765 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-21 22:40:39,766 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-21 22:40:39,766 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-21 22:40:39,766 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-21 22:40:39,766 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-21 22:40:39,766 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-21 22:40:39,766 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-21 22:40:39,792 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-21 22:40:39,804 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-21 22:40:39,808 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-21 22:40:39,809 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-21 22:40:39,809 INFO L276 PluginConnector]: CDTParser initialized [2020-06-21 22:40:39,810 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-21 22:40:39,894 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/2052820dd16b466596bf1ac193c81baf/FLAGd0794525f [2020-06-21 22:40:40,233 INFO L307 CDTParser]: Found 1 translation units. [2020-06-21 22:40:40,233 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-21 22:40:40,240 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/2052820dd16b466596bf1ac193c81baf/FLAGd0794525f [2020-06-21 22:40:40,642 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/2052820dd16b466596bf1ac193c81baf [2020-06-21 22:40:40,654 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-21 22:40:40,656 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-21 22:40:40,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-21 22:40:40,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-21 22:40:40,661 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-21 22:40:40,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 10:40:40" (1/1) ... [2020-06-21 22:40:40,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345d0376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:40:40, skipping insertion in model container [2020-06-21 22:40:40,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 10:40:40" (1/1) ... [2020-06-21 22:40:40,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-21 22:40:40,690 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-21 22:40:40,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-21 22:40:40,850 INFO L191 MainTranslator]: Completed pre-run [2020-06-21 22:40:40,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-21 22:40:40,945 INFO L195 MainTranslator]: Completed translation [2020-06-21 22:40:40,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:40:40 WrapperNode [2020-06-21 22:40:40,946 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-21 22:40:40,947 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-21 22:40:40,947 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-21 22:40:40,947 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-21 22:40:40,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:40:40" (1/1) ... [2020-06-21 22:40:40,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:40:40" (1/1) ... [2020-06-21 22:40:40,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-21 22:40:40,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-21 22:40:40,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-21 22:40:40,981 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-21 22:40:40,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:40:40" (1/1) ... [2020-06-21 22:40:40,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:40:40" (1/1) ... [2020-06-21 22:40:40,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:40:40" (1/1) ... [2020-06-21 22:40:40,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:40:40" (1/1) ... [2020-06-21 22:40:40,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:40:40" (1/1) ... [2020-06-21 22:40:40,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:40:40" (1/1) ... [2020-06-21 22:40:40,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:40:40" (1/1) ... [2020-06-21 22:40:40,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-21 22:40:40,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-21 22:40:40,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-21 22:40:40,999 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-21 22:40:41,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:40:40" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-21 22:40:41,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-21 22:40:41,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-21 22:40:41,184 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-21 22:40:41,184 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-21 22:40:41,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 10:40:41 BoogieIcfgContainer [2020-06-21 22:40:41,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-21 22:40:41,186 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-21 22:40:41,186 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-21 22:40:41,188 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-21 22:40:41,189 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 10:40:41" (1/1) ... [2020-06-21 22:40:41,202 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-06-21 22:40:41,204 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-21 22:40:41,205 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-21 22:40:41,205 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-21 22:40:41,205 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-21 22:40:41,207 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-21 22:40:41,208 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-21 22:40:41,208 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-21 22:40:41,223 INFO L185 BlockEncoder]: Using Use SBE [2020-06-21 22:40:41,237 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-21 22:40:41,242 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-21 22:40:41,244 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 22:40:41,253 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-21 22:40:41,255 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-06-21 22:40:41,257 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-21 22:40:41,257 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 22:40:41,261 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-06-21 22:40:41,262 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-21 22:40:41,262 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-21 22:40:41,262 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 22:40:41,262 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-21 22:40:41,262 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-21 22:40:41,263 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 3 edges [2020-06-21 22:40:41,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 10:40:41 BasicIcfg [2020-06-21 22:40:41,263 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-21 22:40:41,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-21 22:40:41,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-21 22:40:41,267 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-21 22:40:41,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.06 10:40:40" (1/4) ... [2020-06-21 22:40:41,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6043ce29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 10:40:41, skipping insertion in model container [2020-06-21 22:40:41,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:40:40" (2/4) ... [2020-06-21 22:40:41,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6043ce29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 10:40:41, skipping insertion in model container [2020-06-21 22:40:41,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 10:40:41" (3/4) ... [2020-06-21 22:40:41,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6043ce29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 10:40:41, skipping insertion in model container [2020-06-21 22:40:41,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 10:40:41" (4/4) ... [2020-06-21 22:40:41,271 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-21 22:40:41,281 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-21 22:40:41,288 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-21 22:40:41,306 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-21 22:40:41,334 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-21 22:40:41,335 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-21 22:40:41,335 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-21 22:40:41,335 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-21 22:40:41,336 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-21 22:40:41,336 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-21 22:40:41,336 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-21 22:40:41,336 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-21 22:40:41,336 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-21 22:40:41,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-06-21 22:40:41,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-21 22:40:41,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-06-21 22:40:41,408 INFO L451 ceAbstractionStarter]: At program point L16-2(lines 16 18) the Hoare annotation is: true [2020-06-21 22:40:41,408 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-21 22:40:41,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 10:40:41 BasicIcfg [2020-06-21 22:40:41,416 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-21 22:40:41,416 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-21 22:40:41,417 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-21 22:40:41,420 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-21 22:40:41,421 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:40:41,421 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.06 10:40:40" (1/5) ... [2020-06-21 22:40:41,422 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c54e665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.06 10:40:41, skipping insertion in model container [2020-06-21 22:40:41,422 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:40:41,422 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:40:40" (2/5) ... [2020-06-21 22:40:41,423 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c54e665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.06 10:40:41, skipping insertion in model container [2020-06-21 22:40:41,423 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:40:41,423 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 10:40:41" (3/5) ... [2020-06-21 22:40:41,423 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c54e665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 10:40:41, skipping insertion in model container [2020-06-21 22:40:41,423 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:40:41,423 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 10:40:41" (4/5) ... [2020-06-21 22:40:41,424 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c54e665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 10:40:41, skipping insertion in model container [2020-06-21 22:40:41,424 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:40:41,424 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 10:40:41" (5/5) ... [2020-06-21 22:40:41,426 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-21 22:40:41,453 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-21 22:40:41,453 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-21 22:40:41,454 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-21 22:40:41,454 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-21 22:40:41,454 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-21 22:40:41,454 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-21 22:40:41,455 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-21 22:40:41,455 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-21 22:40:41,455 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-21 22:40:41,458 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-21 22:40:41,476 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-21 22:40:41,476 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 22:40:41,477 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 22:40:41,482 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-21 22:40:41,482 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-21 22:40:41,482 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-21 22:40:41,482 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-21 22:40:41,483 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-21 22:40:41,483 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 22:40:41,483 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 22:40:41,483 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-21 22:40:41,483 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-21 22:40:41,488 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [39] ULTIMATE.startENTRY-->L16-2: Formula: (< 0 v_ULTIMATE.start_main_~x~0_11) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 4#L16-2true [2020-06-21 22:40:41,489 INFO L796 eck$LassoCheckResult]: Loop: 4#L16-2true [35] L16-2-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 2))) (> 0 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 4#L16-2true [2020-06-21 22:40:41,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:40:41,494 INFO L82 PathProgramCache]: Analyzing trace with hash 70, now seen corresponding path program 1 times [2020-06-21 22:40:41,496 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:40:41,497 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:40:41,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:40:41,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:40:41,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:40:41,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:40:41,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:40:41,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:40:41,564 INFO L82 PathProgramCache]: Analyzing trace with hash 66, now seen corresponding path program 1 times [2020-06-21 22:40:41,564 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:40:41,564 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:40:41,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:40:41,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:40:41,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:40:41,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:40:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:40:41,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:40:41,579 INFO L82 PathProgramCache]: Analyzing trace with hash 2205, now seen corresponding path program 1 times [2020-06-21 22:40:41,579 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:40:41,579 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:40:41,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:40:41,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:40:41,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:40:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 22:40:41,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-21 22:40:41,628 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-21 22:40:41,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-06-21 22:40:41,661 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 22:40:41,662 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 22:40:41,662 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 22:40:41,663 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 22:40:41,663 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-21 22:40:41,663 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:40:41,663 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 22:40:41,663 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 22:40:41,663 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-21 22:40:41,664 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 22:40:41,664 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 22:40:41,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:40:41,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:40:41,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:40:41,772 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 22:40:41,773 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:40:41,780 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:40:41,780 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:40:41,813 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:40:41,813 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:40:41,819 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:40:41,819 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:40:41,846 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:40:41,847 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:40:41,851 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:40:41,851 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:40:41,884 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-21 22:40:41,884 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:40:41,901 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:40:41,901 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=-1} Honda state: {ULTIMATE.start_main_~x~0=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=-2}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [2, 1, 6] Nus: [0, 0] [2020-06-21 22:40:41,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-21 22:40:41,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-21 22:40:41,943 INFO L87 Difference]: Start difference. First operand 2 states. Second operand 3 states. [2020-06-21 22:40:41,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-21 22:40:41,958 INFO L93 Difference]: Finished difference Result 3 states and 4 transitions. [2020-06-21 22:40:41,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-21 22:40:41,962 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3 states and 4 transitions. [2020-06-21 22:40:41,962 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-21 22:40:41,966 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3 states to 3 states and 4 transitions. [2020-06-21 22:40:41,967 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-06-21 22:40:41,967 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2020-06-21 22:40:41,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 4 transitions. [2020-06-21 22:40:41,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-21 22:40:41,968 INFO L706 BuchiCegarLoop]: Abstraction has 3 states and 4 transitions. [2020-06-21 22:40:41,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3 states and 4 transitions. [2020-06-21 22:40:41,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3 to 3. [2020-06-21 22:40:41,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-21 22:40:41,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2020-06-21 22:40:41,996 INFO L729 BuchiCegarLoop]: Abstraction has 3 states and 4 transitions. [2020-06-21 22:40:41,996 INFO L609 BuchiCegarLoop]: Abstraction has 3 states and 4 transitions. [2020-06-21 22:40:41,996 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-21 22:40:41,996 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states and 4 transitions. [2020-06-21 22:40:41,996 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-21 22:40:41,997 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 22:40:41,997 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 22:40:41,997 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-21 22:40:41,997 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-21 22:40:41,998 INFO L794 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRY [39] ULTIMATE.startENTRY-->L16-2: Formula: (< 0 v_ULTIMATE.start_main_~x~0_11) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 17#L16-2 [36] L16-2-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 2))) (< 0 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 18#L16-2 [2020-06-21 22:40:41,998 INFO L796 eck$LassoCheckResult]: Loop: 18#L16-2 [35] L16-2-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 2))) (> 0 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 18#L16-2 [2020-06-21 22:40:41,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:40:41,998 INFO L82 PathProgramCache]: Analyzing trace with hash 2206, now seen corresponding path program 1 times [2020-06-21 22:40:41,998 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:40:41,998 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:40:42,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:40:42,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:40:42,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:40:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:40:42,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:40:42,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:40:42,006 INFO L82 PathProgramCache]: Analyzing trace with hash 66, now seen corresponding path program 2 times [2020-06-21 22:40:42,006 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:40:42,006 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:40:42,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:40:42,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:40:42,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:40:42,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:40:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:40:42,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:40:42,012 INFO L82 PathProgramCache]: Analyzing trace with hash 68421, now seen corresponding path program 1 times [2020-06-21 22:40:42,012 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:40:42,012 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:40:42,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:40:42,013 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-21 22:40:42,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:40:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:40:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:40:42,035 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 22:40:42,035 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 22:40:42,035 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 22:40:42,036 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 22:40:42,036 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-21 22:40:42,036 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:40:42,036 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 22:40:42,036 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 22:40:42,036 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-21 22:40:42,036 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 22:40:42,036 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 22:40:42,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:40:42,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:40:42,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:40:42,125 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 22:40:42,126 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:40:42,129 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:40:42,129 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:40:42,160 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-21 22:40:42,160 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:40:42,176 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:40:42,176 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=-1} Honda state: {ULTIMATE.start_main_~x~0=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=-2}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 1, 8] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:40:42,207 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:40:42,207 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:40:42,236 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:40:42,237 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/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:40:42,241 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:40:42,242 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:40:42,268 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:40:42,268 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: [] [2020-06-21 22:40:42,278 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 22:40:42,278 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 22:40:42,278 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 22:40:42,279 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 22:40:42,279 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-21 22:40:42,279 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:40:42,279 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 22:40:42,279 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 22:40:42,279 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Lasso [2020-06-21 22:40:42,279 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 22:40:42,279 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 22:40:42,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:40:42,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:40:42,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:40:42,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:40:42,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:40:42,388 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 22:40:42,388 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:40:42,393 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:40:42,394 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:40:42,420 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:40:42,421 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 [2020-06-21 22:40:42,426 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:40:42,426 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:40:42,430 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:40:42,431 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/sandbox2/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 [2020-06-21 22:40:42,458 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:40:42,458 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:40:42,484 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:40:42,485 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 [2020-06-21 22:40:42,489 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:40:42,489 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:40:42,493 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:40:42,493 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/sandbox2/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 [2020-06-21 22:40:42,519 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:40:42,519 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:40:42,549 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-21 22:40:42,549 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:40:42,565 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:40:42,565 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=-2}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 1, 8] Nus: [0, 0] [2020-06-21 22:40:42,600 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-21 22:40:42,601 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-21 22:40:42,602 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-21 22:40:42,602 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-21 22:40:42,603 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-21 22:40:42,603 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-21 22:40:42,603 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-21 22:40:42,604 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-21 22:40:42,604 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-21 22:40:42,604 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-21 22:40:42,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 10:40:42 BasicIcfg [2020-06-21 22:40:42,617 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-21 22:40:42,617 INFO L168 Benchmark]: Toolchain (without parser) took 1962.66 ms. Allocated memory was 514.9 MB in the beginning and 567.8 MB in the end (delta: 53.0 MB). Free memory was 439.5 MB in the beginning and 419.1 MB in the end (delta: 20.3 MB). Peak memory consumption was 73.3 MB. Max. memory is 50.3 GB. [2020-06-21 22:40:42,619 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 514.9 MB. Free memory is still 459.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-21 22:40:42,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.19 ms. Allocated memory was 514.9 MB in the beginning and 567.8 MB in the end (delta: 53.0 MB). Free memory was 438.9 MB in the beginning and 538.4 MB in the end (delta: -99.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 50.3 GB. [2020-06-21 22:40:42,620 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.75 ms. Allocated memory is still 567.8 MB. Free memory was 537.9 MB in the beginning and 536.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-21 22:40:42,621 INFO L168 Benchmark]: Boogie Preprocessor took 18.38 ms. Allocated memory is still 567.8 MB. Free memory was 536.8 MB in the beginning and 535.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. [2020-06-21 22:40:42,621 INFO L168 Benchmark]: RCFGBuilder took 186.37 ms. Allocated memory is still 567.8 MB. Free memory was 535.2 MB in the beginning and 524.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 50.3 GB. [2020-06-21 22:40:42,622 INFO L168 Benchmark]: BlockEncodingV2 took 77.46 ms. Allocated memory is still 567.8 MB. Free memory was 524.3 MB in the beginning and 518.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-21 22:40:42,623 INFO L168 Benchmark]: TraceAbstraction took 151.71 ms. Allocated memory is still 567.8 MB. Free memory was 518.9 MB in the beginning and 510.2 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. [2020-06-21 22:40:42,623 INFO L168 Benchmark]: BuchiAutomizer took 1200.17 ms. Allocated memory is still 567.8 MB. Free memory was 509.7 MB in the beginning and 419.1 MB in the end (delta: 90.6 MB). Peak memory consumption was 90.6 MB. Max. memory is 50.3 GB. [2020-06-21 22:40:42,628 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 2 locations, 3 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 514.9 MB. Free memory is still 459.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 289.19 ms. Allocated memory was 514.9 MB in the beginning and 567.8 MB in the end (delta: 53.0 MB). Free memory was 438.9 MB in the beginning and 538.4 MB in the end (delta: -99.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.75 ms. Allocated memory is still 567.8 MB. Free memory was 537.9 MB in the beginning and 536.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.38 ms. Allocated memory is still 567.8 MB. Free memory was 536.8 MB in the beginning and 535.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. * RCFGBuilder took 186.37 ms. Allocated memory is still 567.8 MB. Free memory was 535.2 MB in the beginning and 524.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 77.46 ms. Allocated memory is still 567.8 MB. Free memory was 524.3 MB in the beginning and 518.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 151.71 ms. Allocated memory is still 567.8 MB. Free memory was 518.9 MB in the beginning and 510.2 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1200.17 ms. Allocated memory is still 567.8 MB. Free memory was 509.7 MB in the beginning and 419.1 MB in the end (delta: 90.6 MB). Peak memory consumption was 90.6 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: 16]: 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 Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 3 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax210 hnf100 lsp47 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf94 smp100 dnf100 smp100 tf108 neg100 sie114 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 16]: Nontermination argument in form of an infinite program execution. [2020-06-21 22:40:42,637 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-21 22:40:42,638 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-21 22:40:42,638 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-21 22:40:42,638 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-21 22:40:42,639 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-21 22:40:42,639 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-21 22:40:42,639 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-21 22:40:42,640 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-21 22:40:42,640 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-21 22:40:42,640 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-21 22:40:42,641 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-21 22:40:42,641 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-21 22:40:42,641 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-21 22:40:42,641 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-21 22:40:42,642 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-21 22:40:42,642 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-21 22:40:42,643 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-21 22:40:42,643 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-21 22:40:42,643 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-21 22:40:42,643 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, ~unnamed0~0~false=0, ULTIMATE.start_main_~x~0=0, |ULTIMATE.start_main_#res|=0, ~unnamed0~0~true=1} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f6f27e3=0, \result=0, ~unnamed0~0~true=1, ~unnamed0~0~false=0, x=-1} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f6f27e3=0, \result=0, ~unnamed0~0~true=1, ~unnamed0~0~false=0, x=-3} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f6f27e3=0, \result=0, ~unnamed0~0~true=1, ~unnamed0~0~false=0, x=-5} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f6f27e3=0, \result=0, ~unnamed0~0~true=1, ~unnamed0~0~false=0, x=-7} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f6f27e3=0, \result=0, ~unnamed0~0~true=1, ~unnamed0~0~false=0, x=-9} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 1GEVs Lambdas: [1, 1, 8] Mus: [0, 0] - NonterminatingLassoResult [Line: 16]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int x; [L14] x = __VERIFIER_nondet_int() [L15] COND TRUE x > 0 [L16] COND TRUE x != 0 [L17] x = x - 2 Loop: [L16] COND TRUE x != 0 [L17] x = x - 2 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-21 22:40:37.418 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-21 22:40:42.869 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check