NO Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 11:06:11,734 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 11:06:11,736 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 11:06:11,747 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 11:06:11,747 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 11:06:11,748 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 11:06:11,749 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 11:06:11,751 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 11:06:11,752 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 11:06:11,753 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 11:06:11,754 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 11:06:11,754 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 11:06:11,755 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 11:06:11,756 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 11:06:11,757 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 11:06:11,757 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 11:06:11,758 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 11:06:11,760 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 11:06:11,762 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 11:06:11,763 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 11:06:11,764 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 11:06:11,765 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 11:06:11,767 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 11:06:11,767 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 11:06:11,767 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 11:06:11,768 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 11:06:11,768 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 11:06:11,769 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 11:06:11,769 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 11:06:11,770 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 11:06:11,771 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 11:06:11,771 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 11:06:11,772 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 11:06:11,773 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 11:06:11,773 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 11:06:11,773 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 11:06:11,774 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 11:06:11,774 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 11:06:11,775 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 11:06:11,775 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 11:06:11,789 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 11:06:11,790 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 11:06:11,791 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 11:06:11,791 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 11:06:11,791 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 11:06:11,791 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 11:06:11,791 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 11:06:11,792 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 11:06:11,792 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 11:06:11,792 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 11:06:11,792 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 11:06:11,792 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 11:06:11,792 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 11:06:11,793 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 11:06:11,793 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:06:11,793 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 11:06:11,793 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 11:06:11,793 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 11:06:11,794 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 11:06:11,794 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 11:06:11,794 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 11:06:11,794 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 11:06:11,794 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 11:06:11,794 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 11:06:11,795 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 11:06:11,795 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 11:06:11,795 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 11:06:11,795 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 11:06:11,795 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 11:06:11,820 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 11:06:11,833 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 11:06:11,836 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 11:06:11,838 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 11:06:11,838 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 11:06:11,839 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 11:06:11,903 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/8b31d70c83bf4613ab14e5d5a959d9d7/FLAG6334de1fa [2020-06-22 11:06:12,228 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 11:06:12,229 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 11:06:12,236 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/8b31d70c83bf4613ab14e5d5a959d9d7/FLAG6334de1fa [2020-06-22 11:06:12,650 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/8b31d70c83bf4613ab14e5d5a959d9d7 [2020-06-22 11:06:12,662 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 11:06:12,663 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 11:06:12,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 11:06:12,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 11:06:12,668 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 11:06:12,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 11:06:12" (1/1) ... [2020-06-22 11:06:12,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ee77a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:12, skipping insertion in model container [2020-06-22 11:06:12,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 11:06:12" (1/1) ... [2020-06-22 11:06:12,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 11:06:12,698 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 11:06:12,854 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 11:06:12,859 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 11:06:12,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 11:06:12,945 INFO L195 MainTranslator]: Completed translation [2020-06-22 11:06:12,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:12 WrapperNode [2020-06-22 11:06:12,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 11:06:12,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 11:06:12,946 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 11:06:12,947 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 11:06:12,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:12" (1/1) ... [2020-06-22 11:06:12,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:12" (1/1) ... [2020-06-22 11:06:12,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 11:06:12,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 11:06:12,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 11:06:12,982 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 11:06:12,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:12" (1/1) ... [2020-06-22 11:06:12,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:12" (1/1) ... [2020-06-22 11:06:12,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:12" (1/1) ... [2020-06-22 11:06:12,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:12" (1/1) ... [2020-06-22 11:06:12,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:12" (1/1) ... [2020-06-22 11:06:12,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:12" (1/1) ... [2020-06-22 11:06:12,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:12" (1/1) ... [2020-06-22 11:06:13,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 11:06:13,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 11:06:13,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 11:06:13,001 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 11:06:13,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:12" (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 11:06:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 11:06:13,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 11:06:13,191 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 11:06:13,191 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2020-06-22 11:06:13,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:06:13 BoogieIcfgContainer [2020-06-22 11:06:13,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 11:06:13,193 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 11:06:13,194 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 11:06:13,196 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 11:06:13,196 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:06:13" (1/1) ... [2020-06-22 11:06:13,210 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-06-22 11:06:13,212 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 11:06:13,212 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 11:06:13,213 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 11:06:13,213 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 11:06:13,215 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 11:06:13,216 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 11:06:13,216 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 11:06:13,230 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 11:06:13,237 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 11:06:13,242 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-06-22 11:06:13,244 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 11:06:13,259 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-06-22 11:06:13,261 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 11:06:13,263 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 11:06:13,263 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 11:06:13,263 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 11:06:13,263 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 11:06:13,264 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-06-22 11:06:13,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:06:13 BasicIcfg [2020-06-22 11:06:13,264 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 11:06:13,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 11:06:13,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 11:06:13,268 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 11:06:13,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 11:06:12" (1/4) ... [2020-06-22 11:06:13,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56bb759b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:06:13, skipping insertion in model container [2020-06-22 11:06:13,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:12" (2/4) ... [2020-06-22 11:06:13,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56bb759b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:06:13, skipping insertion in model container [2020-06-22 11:06:13,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:06:13" (3/4) ... [2020-06-22 11:06:13,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56bb759b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:06:13, skipping insertion in model container [2020-06-22 11:06:13,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:06:13" (4/4) ... [2020-06-22 11:06:13,272 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 11:06:13,282 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 11:06:13,289 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 11:06:13,306 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 11:06:13,334 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 11:06:13,334 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 11:06:13,334 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 11:06:13,335 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 11:06:13,335 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 11:06:13,335 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 11:06:13,335 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 11:06:13,335 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 11:06:13,335 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 11:06:13,349 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 11:06:13,354 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 11:06:13,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 11:06:13,409 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 11:06:13,409 INFO L451 ceAbstractionStarter]: At program point L12-2(lines 12 14) the Hoare annotation is: true [2020-06-22 11:06:13,410 INFO L451 ceAbstractionStarter]: At program point L10-2(lines 10 16) the Hoare annotation is: true [2020-06-22 11:06:13,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:06:13 BasicIcfg [2020-06-22 11:06:13,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 11:06:13,419 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 11:06:13,419 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 11:06:13,422 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 11:06:13,423 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:06:13,423 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 11:06:12" (1/5) ... [2020-06-22 11:06:13,424 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@dce28b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 11:06:13, skipping insertion in model container [2020-06-22 11:06:13,424 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:06:13,424 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:12" (2/5) ... [2020-06-22 11:06:13,424 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@dce28b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 11:06:13, skipping insertion in model container [2020-06-22 11:06:13,424 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:06:13,425 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:06:13" (3/5) ... [2020-06-22 11:06:13,425 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@dce28b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:06:13, skipping insertion in model container [2020-06-22 11:06:13,425 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:06:13,425 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:06:13" (4/5) ... [2020-06-22 11:06:13,426 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@dce28b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:06:13, skipping insertion in model container [2020-06-22 11:06:13,426 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:06:13,426 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:06:13" (5/5) ... [2020-06-22 11:06:13,428 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 11:06:13,455 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 11:06:13,455 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 11:06:13,455 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 11:06:13,455 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 11:06:13,456 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 11:06:13,456 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 11:06:13,456 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 11:06:13,456 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 11:06:13,456 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 11:06:13,459 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 11:06:13,476 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 11:06:13,477 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:06:13,477 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:06:13,482 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 11:06:13,482 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 11:06:13,482 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 11:06:13,483 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 11:06:13,483 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 11:06:13,484 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:06:13,484 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:06:13,484 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 11:06:13,484 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 11:06:13,489 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [34] ULTIMATE.startENTRY-->L10-2: Formula: (= v_ULTIMATE.start_main_~i~0_1 0) InVars {} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 5#L10-2true [2020-06-22 11:06:13,490 INFO L796 eck$LassoCheckResult]: Loop: 5#L10-2true [39] L10-2-->L12-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_9 100) (= v_ULTIMATE.start_main_~j~0_7 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 3#L12-2true [45] L12-2-->L10-2: Formula: (and (= (+ v_ULTIMATE.start_main_~i~0_12 1) v_ULTIMATE.start_main_~i~0_11) (<= 1 v_ULTIMATE.start_main_~j~0_8)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 5#L10-2true [2020-06-22 11:06:13,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:06:13,497 INFO L82 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2020-06-22 11:06:13,499 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:06:13,500 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:06:13,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:13,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:06:13,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:13,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:13,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:13,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:06:13,570 INFO L82 PathProgramCache]: Analyzing trace with hash 2215, now seen corresponding path program 1 times [2020-06-22 11:06:13,570 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:06:13,570 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:06:13,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:13,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:06:13,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:06:13,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 11:06:13,620 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 11:06:13,621 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-06-22 11:06:13,625 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 11:06:13,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 11:06:13,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 11:06:13,642 INFO L87 Difference]: Start difference. First operand 3 states. Second operand 3 states. [2020-06-22 11:06:13,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 11:06:13,657 INFO L93 Difference]: Finished difference Result 3 states and 3 transitions. [2020-06-22 11:06:13,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 11:06:13,661 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3 states and 3 transitions. [2020-06-22 11:06:13,661 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 11:06:13,665 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3 states to 3 states and 3 transitions. [2020-06-22 11:06:13,666 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-06-22 11:06:13,666 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2020-06-22 11:06:13,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3 transitions. [2020-06-22 11:06:13,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 11:06:13,667 INFO L706 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2020-06-22 11:06:13,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3 states and 3 transitions. [2020-06-22 11:06:13,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3 to 3. [2020-06-22 11:06:13,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 11:06:13,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3 transitions. [2020-06-22 11:06:13,695 INFO L729 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2020-06-22 11:06:13,695 INFO L609 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2020-06-22 11:06:13,696 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 11:06:13,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states and 3 transitions. [2020-06-22 11:06:13,696 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 11:06:13,696 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:06:13,696 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:06:13,697 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 11:06:13,697 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 11:06:13,697 INFO L794 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L10-2: Formula: (= v_ULTIMATE.start_main_~i~0_1 0) InVars {} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 17#L10-2 [39] L10-2-->L12-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_9 100) (= v_ULTIMATE.start_main_~j~0_7 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 15#L12-2 [2020-06-22 11:06:13,698 INFO L796 eck$LassoCheckResult]: Loop: 15#L12-2 [33] L12-2-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_5 v_ULTIMATE.start_main_~j~0_6) (< v_ULTIMATE.start_main_~j~0_6 1)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 15#L12-2 [2020-06-22 11:06:13,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:06:13,698 INFO L82 PathProgramCache]: Analyzing trace with hash 2054, now seen corresponding path program 1 times [2020-06-22 11:06:13,698 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:06:13,698 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:06:13,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:13,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:06:13,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:13,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:13,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:06:13,705 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2020-06-22 11:06:13,706 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:06:13,706 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:06:13,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:13,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:06:13,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:13,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:06:13,712 INFO L82 PathProgramCache]: Analyzing trace with hash 63707, now seen corresponding path program 1 times [2020-06-22 11:06:13,712 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:06:13,712 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:06:13,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:13,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:06:13,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:13,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:06:13 BasicIcfg [2020-06-22 11:06:13,791 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 11:06:13,792 INFO L168 Benchmark]: Toolchain (without parser) took 1129.27 ms. Allocated memory was 514.9 MB in the beginning and 564.7 MB in the end (delta: 49.8 MB). Free memory was 437.6 MB in the beginning and 481.8 MB in the end (delta: -44.1 MB). Peak memory consumption was 5.7 MB. Max. memory is 50.3 GB. [2020-06-22 11:06:13,794 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 456.9 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 11:06:13,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.41 ms. Allocated memory was 514.9 MB in the beginning and 564.7 MB in the end (delta: 49.8 MB). Free memory was 437.6 MB in the beginning and 536.4 MB in the end (delta: -98.8 MB). Peak memory consumption was 30.7 MB. Max. memory is 50.3 GB. [2020-06-22 11:06:13,795 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.03 ms. Allocated memory is still 564.7 MB. Free memory was 536.4 MB in the beginning and 534.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 50.3 GB. [2020-06-22 11:06:13,796 INFO L168 Benchmark]: Boogie Preprocessor took 18.88 ms. Allocated memory is still 564.7 MB. Free memory was 534.7 MB in the beginning and 533.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. [2020-06-22 11:06:13,797 INFO L168 Benchmark]: RCFGBuilder took 192.24 ms. Allocated memory is still 564.7 MB. Free memory was 533.3 MB in the beginning and 522.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 50.3 GB. [2020-06-22 11:06:13,797 INFO L168 Benchmark]: BlockEncodingV2 took 70.97 ms. Allocated memory is still 564.7 MB. Free memory was 522.6 MB in the beginning and 518.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 50.3 GB. [2020-06-22 11:06:13,798 INFO L168 Benchmark]: TraceAbstraction took 152.85 ms. Allocated memory is still 564.7 MB. Free memory was 517.2 MB in the beginning and 508.7 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 50.3 GB. [2020-06-22 11:06:13,799 INFO L168 Benchmark]: BuchiAutomizer took 372.84 ms. Allocated memory is still 564.7 MB. Free memory was 507.8 MB in the beginning and 481.8 MB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 50.3 GB. [2020-06-22 11:06:13,803 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 456.9 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 281.41 ms. Allocated memory was 514.9 MB in the beginning and 564.7 MB in the end (delta: 49.8 MB). Free memory was 437.6 MB in the beginning and 536.4 MB in the end (delta: -98.8 MB). Peak memory consumption was 30.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.03 ms. Allocated memory is still 564.7 MB. Free memory was 536.4 MB in the beginning and 534.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.88 ms. Allocated memory is still 564.7 MB. Free memory was 534.7 MB in the beginning and 533.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. * RCFGBuilder took 192.24 ms. Allocated memory is still 564.7 MB. Free memory was 533.3 MB in the beginning and 522.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 70.97 ms. Allocated memory is still 564.7 MB. Free memory was 522.6 MB in the beginning and 518.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 152.85 ms. Allocated memory is still 564.7 MB. Free memory was 517.2 MB in the beginning and 508.7 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 372.84 ms. Allocated memory is still 564.7 MB. Free memory was 507.8 MB in the beginning and 481.8 MB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 0.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. 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: 2 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 2 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 12]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0, i=0, j=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 12]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] i = 0 [L10] COND TRUE i < 100 [L11] j = 0 Loop: [L12] COND TRUE j < 1 [L13] j = j+0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-22 11:06:09.475 ----------------------------------------------- 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 11:06:14.037 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check