NO Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 09:49:53,717 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 09:49:53,719 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 09:49:53,730 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 09:49:53,730 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 09:49:53,731 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 09:49:53,732 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 09:49:53,734 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 09:49:53,735 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 09:49:53,736 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 09:49:53,737 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 09:49:53,737 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 09:49:53,738 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 09:49:53,739 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 09:49:53,740 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 09:49:53,741 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 09:49:53,741 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 09:49:53,743 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 09:49:53,745 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 09:49:53,746 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 09:49:53,747 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 09:49:53,748 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 09:49:53,751 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 09:49:53,751 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 09:49:53,751 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 09:49:53,752 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 09:49:53,752 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 09:49:53,753 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 09:49:53,753 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 09:49:53,754 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 09:49:53,755 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 09:49:53,755 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 09:49:53,756 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 09:49:53,757 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 09:49:53,757 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 09:49:53,757 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 09:49:53,758 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 09:49:53,758 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 09:49:53,759 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 09:49:53,759 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 09:49:53,773 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 09:49:53,774 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 09:49:53,775 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 09:49:53,775 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 09:49:53,775 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 09:49:53,775 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 09:49:53,775 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 09:49:53,776 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 09:49:53,776 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 09:49:53,776 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 09:49:53,776 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 09:49:53,776 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 09:49:53,776 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 09:49:53,777 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 09:49:53,777 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:49:53,777 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 09:49:53,777 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 09:49:53,777 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 09:49:53,777 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 09:49:53,778 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 09:49:53,778 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 09:49:53,778 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 09:49:53,778 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 09:49:53,778 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 09:49:53,778 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 09:49:53,779 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 09:49:53,779 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 09:49:53,779 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 09:49:53,779 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 09:49:53,805 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 09:49:53,818 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 09:49:53,822 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 09:49:53,823 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 09:49:53,824 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 09:49:53,824 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 09:49:53,893 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/fec96a00018d4e52b783fb33b6c13806/FLAG3c05e81fb [2020-06-22 09:49:54,220 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 09:49:54,220 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 09:49:54,227 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/fec96a00018d4e52b783fb33b6c13806/FLAG3c05e81fb [2020-06-22 09:49:54,635 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/fec96a00018d4e52b783fb33b6c13806 [2020-06-22 09:49:54,647 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 09:49:54,648 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 09:49:54,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 09:49:54,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 09:49:54,653 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 09:49:54,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 09:49:54" (1/1) ... [2020-06-22 09:49:54,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a9229e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:49:54, skipping insertion in model container [2020-06-22 09:49:54,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 09:49:54" (1/1) ... [2020-06-22 09:49:54,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 09:49:54,680 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 09:49:54,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 09:49:54,836 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 09:49:54,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 09:49:54,931 INFO L195 MainTranslator]: Completed translation [2020-06-22 09:49:54,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:49:54 WrapperNode [2020-06-22 09:49:54,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 09:49:54,932 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 09:49:54,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 09:49:54,932 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 09:49:54,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:49:54" (1/1) ... [2020-06-22 09:49:54,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:49:54" (1/1) ... [2020-06-22 09:49:54,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 09:49:54,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 09:49:54,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 09:49:54,968 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 09:49:54,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:49:54" (1/1) ... [2020-06-22 09:49:54,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:49:54" (1/1) ... [2020-06-22 09:49:54,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:49:54" (1/1) ... [2020-06-22 09:49:54,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:49:54" (1/1) ... [2020-06-22 09:49:54,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:49:54" (1/1) ... [2020-06-22 09:49:54,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:49:54" (1/1) ... [2020-06-22 09:49:54,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:49:54" (1/1) ... [2020-06-22 09:49:54,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 09:49:54,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 09:49:54,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 09:49:54,988 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 09:49:54,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:49:54" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 09:49:55,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 09:49:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 09:49:55,175 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 09:49:55,175 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 09:49:55,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:49:55 BoogieIcfgContainer [2020-06-22 09:49:55,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 09:49:55,177 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 09:49:55,178 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 09:49:55,180 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 09:49:55,181 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:49:55" (1/1) ... [2020-06-22 09:49:55,199 INFO L313 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2020-06-22 09:49:55,201 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 09:49:55,202 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 09:49:55,202 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 09:49:55,203 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 09:49:55,205 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 09:49:55,206 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 09:49:55,206 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 09:49:55,220 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 09:49:55,228 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 09:49:55,233 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 09:49:55,235 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 09:49:55,252 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 09:49:55,254 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 09:49:55,256 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 09:49:55,256 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 09:49:55,256 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 09:49:55,257 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 09:49:55,257 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 2 edges [2020-06-22 09:49:55,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:49:55 BasicIcfg [2020-06-22 09:49:55,258 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 09:49:55,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 09:49:55,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 09:49:55,262 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 09:49:55,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 09:49:54" (1/4) ... [2020-06-22 09:49:55,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4267d161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 09:49:55, skipping insertion in model container [2020-06-22 09:49:55,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:49:54" (2/4) ... [2020-06-22 09:49:55,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4267d161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 09:49:55, skipping insertion in model container [2020-06-22 09:49:55,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:49:55" (3/4) ... [2020-06-22 09:49:55,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4267d161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:49:55, skipping insertion in model container [2020-06-22 09:49:55,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:49:55" (4/4) ... [2020-06-22 09:49:55,266 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 09:49:55,276 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 09:49:55,283 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 09:49:55,299 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 09:49:55,328 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 09:49:55,329 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 09:49:55,329 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 09:49:55,329 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 09:49:55,329 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 09:49:55,329 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 09:49:55,330 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 09:49:55,330 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 09:49:55,330 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 09:49:55,344 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-06-22 09:49:55,350 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 09:49:55,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-06-22 09:49:55,401 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 09:49:55,402 INFO L451 ceAbstractionStarter]: At program point L14-2(lines 14 16) the Hoare annotation is: true [2020-06-22 09:49:55,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:49:55 BasicIcfg [2020-06-22 09:49:55,409 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 09:49:55,409 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 09:49:55,410 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 09:49:55,413 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 09:49:55,414 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:49:55,414 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 09:49:54" (1/5) ... [2020-06-22 09:49:55,415 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@606eb77c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 09:49:55, skipping insertion in model container [2020-06-22 09:49:55,415 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:49:55,415 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:49:54" (2/5) ... [2020-06-22 09:49:55,415 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@606eb77c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 09:49:55, skipping insertion in model container [2020-06-22 09:49:55,415 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:49:55,416 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:49:55" (3/5) ... [2020-06-22 09:49:55,416 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@606eb77c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:49:55, skipping insertion in model container [2020-06-22 09:49:55,416 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:49:55,416 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:49:55" (4/5) ... [2020-06-22 09:49:55,417 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@606eb77c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:49:55, skipping insertion in model container [2020-06-22 09:49:55,417 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:49:55,417 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:49:55" (5/5) ... [2020-06-22 09:49:55,418 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 09:49:55,444 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 09:49:55,444 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 09:49:55,444 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 09:49:55,444 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 09:49:55,445 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 09:49:55,445 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 09:49:55,445 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 09:49:55,445 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 09:49:55,445 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 09:49:55,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-22 09:49:55,465 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 09:49:55,465 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:49:55,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:49:55,470 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 09:49:55,470 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 09:49:55,471 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 09:49:55,471 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-22 09:49:55,471 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 09:49:55,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:49:55,471 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:49:55,472 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 09:49:55,472 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 09:49:55,477 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [18] ULTIMATE.startENTRY-->L14-2: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 4#L14-2true [2020-06-22 09:49:55,477 INFO L796 eck$LassoCheckResult]: Loop: 4#L14-2true [23] L14-2-->L14-2: Formula: (and (< 1 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~x~0_7 (* 2 v_ULTIMATE.start_main_~x~0_8))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 4#L14-2true [2020-06-22 09:49:55,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:49:55,483 INFO L82 PathProgramCache]: Analyzing trace with hash 49, now seen corresponding path program 1 times [2020-06-22 09:49:55,485 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:49:55,486 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:49:55,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:49:55,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:49:55,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:49:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:49:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:49:55,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:49:55,552 INFO L82 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times [2020-06-22 09:49:55,552 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:49:55,553 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:49:55,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:49:55,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:49:55,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:49:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:49:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:49:55,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:49:55,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1542, now seen corresponding path program 1 times [2020-06-22 09:49:55,564 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:49:55,565 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:49:55,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:49:55,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:49:55,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:49:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:49:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:49:55,626 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:49:55,627 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:49:55,627 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:49:55,628 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:49:55,628 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 09:49:55,628 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:49:55,628 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:49:55,628 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:49:55,628 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 09:49:55,629 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:49:55,629 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:49:55,647 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 09:49:55,657 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 09:49:55,661 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 09:49:55,739 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:49:55,740 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:49:55,746 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:49:55,746 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:49:55,779 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:49:55,780 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:49:55,790 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:49:55,790 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:49:55,818 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:49:55,818 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:49:55,823 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:49:55,823 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:49:55,855 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:49:55,855 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:49:55,869 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:49:55,869 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=6} Honda state: {ULTIMATE.start_main_~x~0=6} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=5}, {ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [2, 2, 0] Nus: [0, 0] [2020-06-22 09:49:55,900 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:49:55,901 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:49:55,901 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:49:55,901 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:49:55,901 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 09:49:55,901 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:49:55,901 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:49:55,902 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:49:55,902 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-06-22 09:49:55,902 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:49:55,902 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:49:55,904 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 09:49:55,911 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 09:49:55,925 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 09:49:55,928 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 09:49:55,933 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 09:49:56,007 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:49:56,007 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:49:56,011 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:49:56,011 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:49:56,017 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:49:56,017 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 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 09:49:56,046 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:49:56,046 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:49:56,077 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:49:56,077 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 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 09:49:56,082 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:49:56,083 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:49:56,086 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:49:56,087 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 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 09:49:56,114 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:49:56,115 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:49:56,142 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:49:56,142 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/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:49:56,147 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:49:56,147 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 [2020-06-22 09:49:56,180 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:49:56,180 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:49:56,192 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:49:56,192 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=6} Honda state: {ULTIMATE.start_main_~x~0=6} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=5}, {ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [2, 2, 0] Nus: [0, 0] [2020-06-22 09:49:56,227 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 09:49:56,229 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 09:49:56,229 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 09:49:56,230 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 09:49:56,230 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 09:49:56,230 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 09:49:56,231 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 09:49:56,231 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 09:49:56,232 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 09:49:56,232 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 09:49:56,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:49:56 BasicIcfg [2020-06-22 09:49:56,242 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 09:49:56,243 INFO L168 Benchmark]: Toolchain (without parser) took 1595.95 ms. Allocated memory was 649.6 MB in the beginning and 681.6 MB in the end (delta: 32.0 MB). Free memory was 563.6 MB in the beginning and 537.4 MB in the end (delta: 26.3 MB). Peak memory consumption was 58.2 MB. Max. memory is 50.3 GB. [2020-06-22 09:49:56,245 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 591.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 09:49:56,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.65 ms. Allocated memory was 649.6 MB in the beginning and 681.6 MB in the end (delta: 32.0 MB). Free memory was 563.6 MB in the beginning and 648.4 MB in the end (delta: -84.7 MB). Peak memory consumption was 30.3 MB. Max. memory is 50.3 GB. [2020-06-22 09:49:56,246 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.09 ms. Allocated memory is still 681.6 MB. Free memory was 648.4 MB in the beginning and 647.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 09:49:56,247 INFO L168 Benchmark]: Boogie Preprocessor took 19.72 ms. Allocated memory is still 681.6 MB. Free memory was 647.3 MB in the beginning and 644.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 50.3 GB. [2020-06-22 09:49:56,247 INFO L168 Benchmark]: RCFGBuilder took 189.56 ms. Allocated memory is still 681.6 MB. Free memory was 644.4 MB in the beginning and 631.7 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 50.3 GB. [2020-06-22 09:49:56,248 INFO L168 Benchmark]: BlockEncodingV2 took 80.30 ms. Allocated memory is still 681.6 MB. Free memory was 631.7 MB in the beginning and 627.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. [2020-06-22 09:49:56,249 INFO L168 Benchmark]: TraceAbstraction took 150.28 ms. Allocated memory is still 681.6 MB. Free memory was 626.3 MB in the beginning and 617.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-06-22 09:49:56,249 INFO L168 Benchmark]: BuchiAutomizer took 833.10 ms. Allocated memory is still 681.6 MB. Free memory was 617.7 MB in the beginning and 537.4 MB in the end (delta: 80.4 MB). Peak memory consumption was 80.4 MB. Max. memory is 50.3 GB. [2020-06-22 09:49:56,253 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, 2 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 591.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 282.65 ms. Allocated memory was 649.6 MB in the beginning and 681.6 MB in the end (delta: 32.0 MB). Free memory was 563.6 MB in the beginning and 648.4 MB in the end (delta: -84.7 MB). Peak memory consumption was 30.3 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.09 ms. Allocated memory is still 681.6 MB. Free memory was 648.4 MB in the beginning and 647.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.72 ms. Allocated memory is still 681.6 MB. Free memory was 647.3 MB in the beginning and 644.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 50.3 GB. * RCFGBuilder took 189.56 ms. Allocated memory is still 681.6 MB. Free memory was 644.4 MB in the beginning and 631.7 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 80.30 ms. Allocated memory is still 681.6 MB. Free memory was 631.7 MB in the beginning and 627.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. * TraceAbstraction took 150.28 ms. Allocated memory is still 681.6 MB. Free memory was 626.3 MB in the beginning and 617.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 833.10 ms. Allocated memory is still 681.6 MB. Free memory was 617.7 MB in the beginning and 537.4 MB in the end (delta: 80.4 MB). Peak memory consumption was 80.4 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: 14]: 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 0.7s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. 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 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 14]: Nontermination argument in form of an infinite program execution. [2020-06-22 09:49:56,263 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 09:49:56,264 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 09:49:56,264 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 09:49:56,264 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 09:49:56,265 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 09:49:56,265 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 09:49:56,265 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 09:49:56,266 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 09:49:56,266 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 09:49:56,266 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 09:49:56,267 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 09:49:56,267 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 09:49:56,267 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 09:49:56,267 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 09:49:56,268 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 09:49:56,268 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 09:49:56,268 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 09:49:56,269 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 09:49:56,269 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 09:49:56,269 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=6, |ULTIMATE.start_main_#res|=0, ~unnamed0~0~true=1} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ea52993=0, \result=0, ~unnamed0~0~true=1, ~unnamed0~0~false=0, x=6} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ea52993=0, \result=0, ~unnamed0~0~true=1, ~unnamed0~0~false=0, x=12} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ea52993=0, \result=0, ~unnamed0~0~true=1, ~unnamed0~0~false=0, x=24} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ea52993=0, \result=0, ~unnamed0~0~true=1, ~unnamed0~0~false=0, x=48} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ea52993=0, \result=0, ~unnamed0~0~true=1, ~unnamed0~0~false=0, x=96} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 2GEVs Lambdas: [2, 2, 0] Mus: [0, 0] - NonterminatingLassoResult [Line: 14]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int x; [L13] x = __VERIFIER_nondet_int() Loop: [L14] COND TRUE x > 1 [L15] x = 2*x End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-22 09:49:51.422 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 09:49:56.493 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check