NO Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 07:11:23,206 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 07:11:23,208 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 07:11:23,220 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 07:11:23,221 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 07:11:23,222 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 07:11:23,223 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 07:11:23,224 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 07:11:23,226 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 07:11:23,227 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 07:11:23,227 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 07:11:23,228 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 07:11:23,228 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 07:11:23,229 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 07:11:23,231 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 07:11:23,232 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 07:11:23,233 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 07:11:23,234 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 07:11:23,236 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 07:11:23,237 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 07:11:23,238 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 07:11:23,240 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 07:11:23,242 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 07:11:23,242 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 07:11:23,242 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 07:11:23,243 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 07:11:23,243 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 07:11:23,244 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 07:11:23,244 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 07:11:23,245 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 07:11:23,246 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 07:11:23,246 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 07:11:23,248 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 07:11:23,248 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 07:11:23,250 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 07:11:23,250 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 07:11:23,250 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 07:11:23,251 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 07:11:23,252 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 07:11:23,252 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 07:11:23,266 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 07:11:23,266 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 07:11:23,267 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 07:11:23,267 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 07:11:23,268 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 07:11:23,268 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 07:11:23,268 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 07:11:23,268 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 07:11:23,268 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 07:11:23,268 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 07:11:23,269 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 07:11:23,269 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 07:11:23,269 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 07:11:23,269 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 07:11:23,269 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:23,269 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 07:11:23,269 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 07:11:23,270 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 07:11:23,270 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 07:11:23,270 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 07:11:23,270 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 07:11:23,270 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 07:11:23,270 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 07:11:23,271 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 07:11:23,271 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 07:11:23,271 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 07:11:23,271 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 07:11:23,271 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 07:11:23,271 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 07:11:23,296 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 07:11:23,310 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 07:11:23,313 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 07:11:23,315 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 07:11:23,315 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 07:11:23,316 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 07:11:23,416 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/53df5bd9707047dda957dd39d69d56fc/FLAGc4d56b2b1 [2020-06-22 07:11:23,752 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 07:11:23,753 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 07:11:23,759 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/53df5bd9707047dda957dd39d69d56fc/FLAGc4d56b2b1 [2020-06-22 07:11:24,170 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/53df5bd9707047dda957dd39d69d56fc [2020-06-22 07:11:24,182 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 07:11:24,183 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 07:11:24,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 07:11:24,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 07:11:24,188 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 07:11:24,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 07:11:24" (1/1) ... [2020-06-22 07:11:24,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@452b6e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:24, skipping insertion in model container [2020-06-22 07:11:24,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 07:11:24" (1/1) ... [2020-06-22 07:11:24,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 07:11:24,218 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 07:11:24,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 07:11:24,381 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 07:11:24,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 07:11:24,470 INFO L195 MainTranslator]: Completed translation [2020-06-22 07:11:24,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:24 WrapperNode [2020-06-22 07:11:24,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 07:11:24,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 07:11:24,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 07:11:24,471 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 07:11:24,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:24" (1/1) ... [2020-06-22 07:11:24,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:24" (1/1) ... [2020-06-22 07:11:24,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 07:11:24,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 07:11:24,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 07:11:24,506 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 07:11:24,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:24" (1/1) ... [2020-06-22 07:11:24,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:24" (1/1) ... [2020-06-22 07:11:24,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:24" (1/1) ... [2020-06-22 07:11:24,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:24" (1/1) ... [2020-06-22 07:11:24,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:24" (1/1) ... [2020-06-22 07:11:24,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:24" (1/1) ... [2020-06-22 07:11:24,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:24" (1/1) ... [2020-06-22 07:11:24,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 07:11:24,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 07:11:24,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 07:11:24,526 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 07:11:24,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:24" (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 07:11:24,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 07:11:24,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 07:11:24,714 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 07:11:24,714 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 07:11:24,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:11:24 BoogieIcfgContainer [2020-06-22 07:11:24,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 07:11:24,718 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 07:11:24,718 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 07:11:24,720 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 07:11:24,721 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:11:24" (1/1) ... [2020-06-22 07:11:24,734 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-06-22 07:11:24,736 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 07:11:24,737 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 07:11:24,737 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 07:11:24,738 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 07:11:24,739 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 07:11:24,740 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 07:11:24,740 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 07:11:24,754 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 07:11:24,763 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 07:11:24,768 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 07:11:24,769 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 07:11:24,782 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 07:11:24,785 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 07:11:24,786 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 07:11:24,786 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 07:11:24,786 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 07:11:24,787 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 07:11:24,787 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 6 edges [2020-06-22 07:11:24,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:11:24 BasicIcfg [2020-06-22 07:11:24,788 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 07:11:24,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 07:11:24,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 07:11:24,792 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 07:11:24,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 07:11:24" (1/4) ... [2020-06-22 07:11:24,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a58bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 07:11:24, skipping insertion in model container [2020-06-22 07:11:24,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:24" (2/4) ... [2020-06-22 07:11:24,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a58bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 07:11:24, skipping insertion in model container [2020-06-22 07:11:24,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:11:24" (3/4) ... [2020-06-22 07:11:24,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a58bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:11:24, skipping insertion in model container [2020-06-22 07:11:24,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:11:24" (4/4) ... [2020-06-22 07:11:24,796 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 07:11:24,805 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 07:11:24,812 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 07:11:24,829 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 07:11:24,858 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 07:11:24,859 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 07:11:24,859 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 07:11:24,859 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 07:11:24,859 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 07:11:24,859 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 07:11:24,859 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 07:11:24,860 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 07:11:24,860 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 07:11:24,873 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-06-22 07:11:24,879 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 07:11:24,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-06-22 07:11:24,931 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 07:11:24,931 INFO L448 ceAbstractionStarter]: For program point L13(lines 13 17) no Hoare annotation was computed. [2020-06-22 07:11:24,931 INFO L451 ceAbstractionStarter]: At program point L13-2(lines 9 19) the Hoare annotation is: true [2020-06-22 07:11:24,931 INFO L448 ceAbstractionStarter]: For program point L10(lines 10 18) no Hoare annotation was computed. [2020-06-22 07:11:24,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:11:24 BasicIcfg [2020-06-22 07:11:24,939 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 07:11:24,940 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 07:11:24,940 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 07:11:24,944 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 07:11:24,944 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:11:24,945 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 07:11:24" (1/5) ... [2020-06-22 07:11:24,945 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@129c5ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 07:11:24, skipping insertion in model container [2020-06-22 07:11:24,945 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:11:24,946 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:24" (2/5) ... [2020-06-22 07:11:24,946 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@129c5ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 07:11:24, skipping insertion in model container [2020-06-22 07:11:24,946 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:11:24,946 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:11:24" (3/5) ... [2020-06-22 07:11:24,947 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@129c5ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:11:24, skipping insertion in model container [2020-06-22 07:11:24,947 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:11:24,947 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:11:24" (4/5) ... [2020-06-22 07:11:24,947 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@129c5ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:11:24, skipping insertion in model container [2020-06-22 07:11:24,948 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:11:24,948 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:11:24" (5/5) ... [2020-06-22 07:11:24,949 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 07:11:24,977 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 07:11:24,977 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 07:11:24,977 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 07:11:24,977 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 07:11:24,978 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 07:11:24,978 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 07:11:24,978 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 07:11:24,978 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 07:11:24,978 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 07:11:24,982 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 07:11:25,001 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 07:11:25,002 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:11:25,002 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:11:25,009 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 07:11:25,009 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 07:11:25,009 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 07:11:25,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 07:11:25,010 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 07:11:25,010 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:11:25,010 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:11:25,010 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 07:11:25,010 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 07:11:25,015 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [32] ULTIMATE.startENTRY-->L13-2: Formula: (= v_ULTIMATE.start_main_~i~0_1 3) InVars {} OutVars{ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 5#L13-2true [2020-06-22 07:11:25,016 INFO L796 eck$LassoCheckResult]: Loop: 5#L13-2true [35] L13-2-->L10: Formula: (<= 3 v_ULTIMATE.start_main_~i~0_11) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[] 3#L10true [29] L10-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_12 (+ v_ULTIMATE.start_main_~i~0_13 3)) (< 5 v_ULTIMATE.start_main_~i~0_13)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 5#L13-2true [2020-06-22 07:11:25,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:25,023 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times [2020-06-22 07:11:25,025 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:11:25,026 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:11:25,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:25,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:11:25,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:25,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:25,096 INFO L82 PathProgramCache]: Analyzing trace with hash 2075, now seen corresponding path program 1 times [2020-06-22 07:11:25,097 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:11:25,097 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:11:25,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:25,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:11:25,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:25,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:25,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:25,110 INFO L82 PathProgramCache]: Analyzing trace with hash 61657, now seen corresponding path program 1 times [2020-06-22 07:11:25,110 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:11:25,110 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:11:25,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:25,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:11:25,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:11:25,157 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 07:11:25,159 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 07:11:25,159 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-06-22 07:11:25,197 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:11:25,199 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:11:25,199 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:11:25,199 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:11:25,199 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:11:25,199 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:25,199 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:11:25,200 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:11:25,200 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 07:11:25,200 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:11:25,201 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:11:25,220 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 07:11:25,230 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 07:11:25,235 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 07:11:25,305 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:11:25,306 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 07:11:25,313 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:11:25,313 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:11:25,346 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:11:25,346 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 07:11:25,353 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:11:25,353 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:11:25,380 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:11:25,380 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 07:11:25,387 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:11:25,387 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 07:11:25,418 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:11:25,418 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:11:25,430 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:11:25,430 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=6} Honda state: {ULTIMATE.start_main_~i~0=6} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=1}, {ULTIMATE.start_main_~i~0=2}, {ULTIMATE.start_main_~i~0=0}] Lambdas: [1, 1, 0] Nus: [0, 0] [2020-06-22 07:11:25,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 07:11:25,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 07:11:25,471 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states. [2020-06-22 07:11:25,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 07:11:25,497 INFO L93 Difference]: Finished difference Result 7 states and 9 transitions. [2020-06-22 07:11:25,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 07:11:25,501 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 9 transitions. [2020-06-22 07:11:25,501 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 07:11:25,505 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 9 transitions. [2020-06-22 07:11:25,506 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-06-22 07:11:25,507 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-06-22 07:11:25,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2020-06-22 07:11:25,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 07:11:25,508 INFO L706 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-06-22 07:11:25,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2020-06-22 07:11:25,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-06-22 07:11:25,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-06-22 07:11:25,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2020-06-22 07:11:25,537 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-06-22 07:11:25,537 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-06-22 07:11:25,537 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 07:11:25,538 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2020-06-22 07:11:25,538 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 07:11:25,538 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:11:25,538 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:11:25,539 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-06-22 07:11:25,539 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 07:11:25,539 INFO L794 eck$LassoCheckResult]: Stem: 24#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L13-2: Formula: (= v_ULTIMATE.start_main_~i~0_1 3) InVars {} OutVars{ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 25#L13-2 [35] L13-2-->L10: Formula: (<= 3 v_ULTIMATE.start_main_~i~0_11) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[] 22#L10 [41] L10-->L13: Formula: (>= 5 v_ULTIMATE.start_main_~i~0_14) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} AuxVars[] AssignedVars[] 23#L13 [42] L13-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_8 (+ v_ULTIMATE.start_main_~i~0_9 1)) (>= 10 v_ULTIMATE.start_main_~i~0_9)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 26#L13-2 [2020-06-22 07:11:25,540 INFO L796 eck$LassoCheckResult]: Loop: 26#L13-2 [35] L13-2-->L10: Formula: (<= 3 v_ULTIMATE.start_main_~i~0_11) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[] 28#L10 [29] L10-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_12 (+ v_ULTIMATE.start_main_~i~0_13 3)) (< 5 v_ULTIMATE.start_main_~i~0_13)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 26#L13-2 [2020-06-22 07:11:25,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:25,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1911781, now seen corresponding path program 1 times [2020-06-22 07:11:25,540 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:11:25,540 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:11:25,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:25,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:11:25,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:25,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:25,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:25,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:25,549 INFO L82 PathProgramCache]: Analyzing trace with hash 2075, now seen corresponding path program 2 times [2020-06-22 07:11:25,549 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:11:25,550 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:11:25,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:25,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:11:25,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:25,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:25,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1837222655, now seen corresponding path program 1 times [2020-06-22 07:11:25,556 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:11:25,556 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:11:25,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:25,558 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 07:11:25,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:11:25,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 07:11:25,580 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 07:11:25,580 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 07:11:25,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:11:25,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:11:25,609 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 3 conjunts are in the unsatisfiable core [2020-06-22 07:11:25,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:11:25,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 07:11:25,652 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 07:11:25,652 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2020-06-22 07:11:25,677 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:11:25,677 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:11:25,677 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:11:25,677 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:11:25,678 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:11:25,678 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:25,678 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:11:25,678 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:11:25,678 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 07:11:25,678 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:11:25,678 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:11:25,680 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 07:11:25,683 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 07:11:25,688 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 07:11:25,756 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:11:25,756 INFO L412 LassoAnalysis]: Checking for nontermination... 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) [2020-06-22 07:11:25,762 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:11:25,762 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:25,795 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:11:25,795 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 07:11:25,800 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:11:25,801 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:11:25,828 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:11:25,828 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 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 07:11:25,833 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:11:25,833 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 07:11:25,864 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:11:25,864 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:11:25,875 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:11:25,875 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=6} Honda state: {ULTIMATE.start_main_~i~0=6} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=1}, {ULTIMATE.start_main_~i~0=2}, {ULTIMATE.start_main_~i~0=0}] Lambdas: [1, 1, 0] Nus: [0, 0] [2020-06-22 07:11:25,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 07:11:25,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-06-22 07:11:25,900 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand 4 states. [2020-06-22 07:11:25,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 07:11:25,925 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2020-06-22 07:11:25,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-22 07:11:25,926 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2020-06-22 07:11:25,927 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 07:11:25,927 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 12 transitions. [2020-06-22 07:11:25,928 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-06-22 07:11:25,928 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-06-22 07:11:25,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2020-06-22 07:11:25,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 07:11:25,928 INFO L706 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-06-22 07:11:25,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2020-06-22 07:11:25,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-06-22 07:11:25,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-06-22 07:11:25,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2020-06-22 07:11:25,930 INFO L729 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-06-22 07:11:25,930 INFO L609 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-06-22 07:11:25,930 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 07:11:25,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2020-06-22 07:11:25,931 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 07:11:25,931 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:11:25,932 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:11:25,932 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1] [2020-06-22 07:11:25,932 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 07:11:25,933 INFO L794 eck$LassoCheckResult]: Stem: 65#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L13-2: Formula: (= v_ULTIMATE.start_main_~i~0_1 3) InVars {} OutVars{ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 66#L13-2 [35] L13-2-->L10: Formula: (<= 3 v_ULTIMATE.start_main_~i~0_11) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[] 63#L10 [41] L10-->L13: Formula: (>= 5 v_ULTIMATE.start_main_~i~0_14) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} AuxVars[] AssignedVars[] 64#L13 [42] L13-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_8 (+ v_ULTIMATE.start_main_~i~0_9 1)) (>= 10 v_ULTIMATE.start_main_~i~0_9)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 67#L13-2 [35] L13-2-->L10: Formula: (<= 3 v_ULTIMATE.start_main_~i~0_11) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[] 72#L10 [41] L10-->L13: Formula: (>= 5 v_ULTIMATE.start_main_~i~0_14) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} AuxVars[] AssignedVars[] 71#L13 [42] L13-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_8 (+ v_ULTIMATE.start_main_~i~0_9 1)) (>= 10 v_ULTIMATE.start_main_~i~0_9)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 69#L13-2 [2020-06-22 07:11:25,933 INFO L796 eck$LassoCheckResult]: Loop: 69#L13-2 [35] L13-2-->L10: Formula: (<= 3 v_ULTIMATE.start_main_~i~0_11) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[] 70#L10 [29] L10-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_12 (+ v_ULTIMATE.start_main_~i~0_13 3)) (< 5 v_ULTIMATE.start_main_~i~0_13)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 69#L13-2 [2020-06-22 07:11:25,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:25,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1119327871, now seen corresponding path program 2 times [2020-06-22 07:11:25,933 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:11:25,933 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:11:25,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:25,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:11:25,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:25,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:25,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:25,946 INFO L82 PathProgramCache]: Analyzing trace with hash 2075, now seen corresponding path program 3 times [2020-06-22 07:11:25,946 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:11:25,946 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:11:25,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:25,947 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 07:11:25,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:25,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:25,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:25,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1932261145, now seen corresponding path program 2 times [2020-06-22 07:11:25,952 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:11:25,952 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:11:25,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:25,954 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 07:11:25,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:11:25,983 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 07:11:25,983 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 07:11:25,983 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 07:11:25,997 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2020-06-22 07:11:26,004 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-06-22 07:11:26,004 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 07:11:26,005 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 07:11:26,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:11:26,009 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 07:11:26,038 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 07:11:26,038 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-06-22 07:11:26,057 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:11:26,057 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:11:26,057 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:11:26,057 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:11:26,057 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:11:26,057 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:26,057 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:11:26,058 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:11:26,058 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 07:11:26,058 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:11:26,058 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:11:26,059 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 07:11:26,064 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 07:11:26,072 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 07:11:26,106 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:11:26,106 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:26,110 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:11:26,110 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:11:26,136 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:11:26,137 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:26,155 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:11:26,155 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:26,185 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:11:26,186 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:11:26,196 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:11:26,196 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=6} Honda state: {ULTIMATE.start_main_~i~0=6} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=1}, {ULTIMATE.start_main_~i~0=2}, {ULTIMATE.start_main_~i~0=0}] Lambdas: [1, 1, 0] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:26,224 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:11:26,224 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:11:26,252 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:11:26,252 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-22 07:11:26,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 07:11:26,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-06-22 07:11:26,254 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. cyclomatic complexity: 3 Second operand 5 states. [2020-06-22 07:11:26,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 07:11:26,278 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2020-06-22 07:11:26,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-06-22 07:11:26,279 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 13 transitions. [2020-06-22 07:11:26,280 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 07:11:26,280 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 13 transitions. [2020-06-22 07:11:26,281 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-06-22 07:11:26,281 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-06-22 07:11:26,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2020-06-22 07:11:26,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 07:11:26,281 INFO L706 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2020-06-22 07:11:26,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2020-06-22 07:11:26,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-06-22 07:11:26,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-06-22 07:11:26,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2020-06-22 07:11:26,283 INFO L729 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2020-06-22 07:11:26,283 INFO L609 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2020-06-22 07:11:26,284 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 07:11:26,284 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 13 transitions. [2020-06-22 07:11:26,284 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 07:11:26,284 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:11:26,285 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:11:26,285 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1] [2020-06-22 07:11:26,285 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 07:11:26,286 INFO L794 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L13-2: Formula: (= v_ULTIMATE.start_main_~i~0_1 3) InVars {} OutVars{ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 122#L13-2 [35] L13-2-->L10: Formula: (<= 3 v_ULTIMATE.start_main_~i~0_11) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[] 119#L10 [41] L10-->L13: Formula: (>= 5 v_ULTIMATE.start_main_~i~0_14) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} AuxVars[] AssignedVars[] 120#L13 [42] L13-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_8 (+ v_ULTIMATE.start_main_~i~0_9 1)) (>= 10 v_ULTIMATE.start_main_~i~0_9)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 123#L13-2 [35] L13-2-->L10: Formula: (<= 3 v_ULTIMATE.start_main_~i~0_11) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[] 130#L10 [41] L10-->L13: Formula: (>= 5 v_ULTIMATE.start_main_~i~0_14) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} AuxVars[] AssignedVars[] 129#L13 [42] L13-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_8 (+ v_ULTIMATE.start_main_~i~0_9 1)) (>= 10 v_ULTIMATE.start_main_~i~0_9)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 128#L13-2 [35] L13-2-->L10: Formula: (<= 3 v_ULTIMATE.start_main_~i~0_11) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[] 127#L10 [41] L10-->L13: Formula: (>= 5 v_ULTIMATE.start_main_~i~0_14) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} AuxVars[] AssignedVars[] 125#L13 [2020-06-22 07:11:26,286 INFO L796 eck$LassoCheckResult]: Loop: 125#L13 [42] L13-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_8 (+ v_ULTIMATE.start_main_~i~0_9 1)) (>= 10 v_ULTIMATE.start_main_~i~0_9)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 126#L13-2 [35] L13-2-->L10: Formula: (<= 3 v_ULTIMATE.start_main_~i~0_11) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[] 124#L10 [41] L10-->L13: Formula: (>= 5 v_ULTIMATE.start_main_~i~0_14) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} AuxVars[] AssignedVars[] 125#L13 [2020-06-22 07:11:26,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:26,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1932261157, now seen corresponding path program 3 times [2020-06-22 07:11:26,286 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:11:26,286 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:11:26,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:26,288 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 07:11:26,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:26,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:26,299 INFO L82 PathProgramCache]: Analyzing trace with hash 71279, now seen corresponding path program 1 times [2020-06-22 07:11:26,299 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:11:26,299 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:11:26,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:26,300 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 07:11:26,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:26,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:26,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1454498613, now seen corresponding path program 4 times [2020-06-22 07:11:26,305 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:11:26,305 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:11:26,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:26,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:11:26,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:11:26,356 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 07:11:26,356 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 07:11:26,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-06-22 07:11:26,378 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:11:26,378 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:11:26,378 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:11:26,378 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:11:26,378 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:11:26,378 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:26,379 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:11:26,379 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:11:26,379 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 07:11:26,379 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:11:26,379 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:11:26,380 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 07:11:26,383 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 07:11:26,386 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 07:11:26,435 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:11:26,435 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:26,440 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:11:26,440 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:11:26,468 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:11:26,468 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_4=0} Honda state: {v_rep~unnamed0~0~false_4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:26,475 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:11:26,476 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:11:26,503 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:11:26,503 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_4=1} Honda state: {v_rep~unnamed0~0~true_4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:26,508 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:11:26,508 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:26,539 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:11:26,540 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:11:26,619 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 07:11:26,621 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:11:26,621 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:11:26,622 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:11:26,622 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:11:26,622 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 07:11:26,622 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 07:11:26,622 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:11:26,622 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:11:26,622 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 07:11:26,622 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:11:26,623 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:11:26,624 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 07:11:26,628 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 07:11:26,638 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 07:11:26,692 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:11:26,698 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 07:11:26,700 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 07:11:26,702 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:11:26,702 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:11:26,703 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:11:26,703 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:11:26,707 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 07:11:26,708 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 07:11:26,715 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:11:26,715 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 07:11:26,716 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:11:26,716 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:11:26,717 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:11:26,717 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:11:26,717 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:11:26,718 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:11:26,718 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:11:26,723 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 07:11:26,729 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 07:11:26,729 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 07:11:26,731 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 07:11:26,731 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 07:11:26,731 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 07:11:26,732 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 9 Supporting invariants [] [2020-06-22 07:11:26,733 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 07:11:26,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:11:26,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 07:11:26,771 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:11:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:11:26,776 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 07:11:26,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:11:26,802 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 07:11:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:26,810 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-06-22 07:11:26,810 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 07:11:26,813 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 07:11:26,813 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand 3 states. [2020-06-22 07:11:26,853 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 19 states and 21 transitions. Complement of second has 4 states. [2020-06-22 07:11:26,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 07:11:26,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 07:11:26,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2020-06-22 07:11:26,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 3 letters. [2020-06-22 07:11:26,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:11:26,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 12 letters. Loop has 3 letters. [2020-06-22 07:11:26,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:11:26,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 6 letters. [2020-06-22 07:11:26,859 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:11:26,863 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 21 transitions. [2020-06-22 07:11:26,864 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 07:11:26,864 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 15 states and 17 transitions. [2020-06-22 07:11:26,865 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 07:11:26,865 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-06-22 07:11:26,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 17 transitions. [2020-06-22 07:11:26,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 07:11:26,865 INFO L706 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2020-06-22 07:11:26,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 17 transitions. [2020-06-22 07:11:26,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2020-06-22 07:11:26,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-06-22 07:11:26,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2020-06-22 07:11:26,867 INFO L729 BuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2020-06-22 07:11:26,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-06-22 07:11:26,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-06-22 07:11:26,868 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 6 states. [2020-06-22 07:11:26,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 07:11:26,892 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2020-06-22 07:11:26,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-06-22 07:11:26,893 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 15 transitions. [2020-06-22 07:11:26,894 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 07:11:26,895 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 12 transitions. [2020-06-22 07:11:26,895 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 07:11:26,895 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-06-22 07:11:26,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 12 transitions. [2020-06-22 07:11:26,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 07:11:26,895 INFO L706 BuchiCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-06-22 07:11:26,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 12 transitions. [2020-06-22 07:11:26,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-06-22 07:11:26,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-06-22 07:11:26,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-06-22 07:11:26,897 INFO L729 BuchiCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-06-22 07:11:26,897 INFO L609 BuchiCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-06-22 07:11:26,897 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 07:11:26,897 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 12 transitions. [2020-06-22 07:11:26,898 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 07:11:26,898 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:11:26,898 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:11:26,899 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 1] [2020-06-22 07:11:26,899 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 07:11:26,899 INFO L794 eck$LassoCheckResult]: Stem: 240#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L13-2: Formula: (= v_ULTIMATE.start_main_~i~0_1 3) InVars {} OutVars{ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 241#L13-2 [35] L13-2-->L10: Formula: (<= 3 v_ULTIMATE.start_main_~i~0_11) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[] 244#L10 [41] L10-->L13: Formula: (>= 5 v_ULTIMATE.start_main_~i~0_14) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} AuxVars[] AssignedVars[] 242#L13 [42] L13-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_8 (+ v_ULTIMATE.start_main_~i~0_9 1)) (>= 10 v_ULTIMATE.start_main_~i~0_9)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 243#L13-2 [35] L13-2-->L10: Formula: (<= 3 v_ULTIMATE.start_main_~i~0_11) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[] 249#L10 [41] L10-->L13: Formula: (>= 5 v_ULTIMATE.start_main_~i~0_14) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} AuxVars[] AssignedVars[] 248#L13 [42] L13-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_8 (+ v_ULTIMATE.start_main_~i~0_9 1)) (>= 10 v_ULTIMATE.start_main_~i~0_9)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 247#L13-2 [35] L13-2-->L10: Formula: (<= 3 v_ULTIMATE.start_main_~i~0_11) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[] 246#L10 [41] L10-->L13: Formula: (>= 5 v_ULTIMATE.start_main_~i~0_14) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} AuxVars[] AssignedVars[] 245#L13 [42] L13-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_8 (+ v_ULTIMATE.start_main_~i~0_9 1)) (>= 10 v_ULTIMATE.start_main_~i~0_9)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 239#L13-2 [2020-06-22 07:11:26,899 INFO L796 eck$LassoCheckResult]: Loop: 239#L13-2 [35] L13-2-->L10: Formula: (<= 3 v_ULTIMATE.start_main_~i~0_11) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[] 238#L10 [29] L10-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_12 (+ v_ULTIMATE.start_main_~i~0_13 3)) (< 5 v_ULTIMATE.start_main_~i~0_13)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 239#L13-2 [2020-06-22 07:11:26,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:26,900 INFO L82 PathProgramCache]: Analyzing trace with hash -229446235, now seen corresponding path program 5 times [2020-06-22 07:11:26,900 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:11:26,900 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:11:26,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:26,902 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 07:11:26,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:26,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:26,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:26,911 INFO L82 PathProgramCache]: Analyzing trace with hash 2075, now seen corresponding path program 4 times [2020-06-22 07:11:26,912 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:11:26,912 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:11:26,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:26,913 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 07:11:26,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:26,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:26,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1454498625, now seen corresponding path program 3 times [2020-06-22 07:11:26,917 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:11:26,917 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:11:26,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:26,918 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 07:11:26,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:26,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:26,952 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:11:26,953 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:11:26,953 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:11:26,953 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:11:26,953 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:11:26,953 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:26,953 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:11:26,953 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:11:26,953 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-06-22 07:11:26,953 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:11:26,954 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:11:26,955 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 07:11:26,958 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 07:11:26,964 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 07:11:27,008 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:11:27,009 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:27,013 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:11:27,013 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:11:27,041 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:11:27,041 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_6=1} Honda state: {v_rep~unnamed0~0~true_6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:27,045 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:11:27,046 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:27,076 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:11:27,076 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:11:27,086 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:11:27,086 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=6} Honda state: {ULTIMATE.start_main_~i~0=6} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=1}, {ULTIMATE.start_main_~i~0=2}, {ULTIMATE.start_main_~i~0=0}] Lambdas: [1, 1, 0] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:27,113 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:11:27,113 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:11:27,140 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:11:27,140 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_6=0} Honda state: {v_rep~unnamed0~0~false_6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-22 07:11:27,174 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:11:27,174 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:11:27,174 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:11:27,174 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:11:27,174 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:11:27,175 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:27,175 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:11:27,175 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:11:27,175 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Lasso [2020-06-22 07:11:27,175 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:11:27,175 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:11:27,176 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 07:11:27,179 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 07:11:27,187 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 07:11:27,191 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 07:11:27,236 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:11:27,236 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:27,240 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:11:27,241 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:11:27,244 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:11:27,244 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 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:27,271 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:11:27,271 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:27,301 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:11:27,301 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:11:27,311 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:11:27,311 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~i~0=6} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=0}, {ULTIMATE.start_main_~i~0=3}, {ULTIMATE.start_main_~i~0=0}] Lambdas: [0, 1, 0] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:27,339 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:11:27,339 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:11:27,366 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:11:27,366 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:27,371 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:11:27,371 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:11:27,398 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:11:27,398 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-22 07:11:27,407 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 07:11:27,408 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 07:11:27,408 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 07:11:27,408 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 07:11:27,409 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 07:11:27,409 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 07:11:27,409 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 07:11:27,410 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 07:11:27,410 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 07:11:27,410 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 07:11:27,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:11:27 BasicIcfg [2020-06-22 07:11:27,422 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 07:11:27,423 INFO L168 Benchmark]: Toolchain (without parser) took 3240.14 ms. Allocated memory was 514.9 MB in the beginning and 586.2 MB in the end (delta: 71.3 MB). Free memory was 440.8 MB in the beginning and 411.7 MB in the end (delta: 29.1 MB). Peak memory consumption was 100.4 MB. Max. memory is 50.3 GB. [2020-06-22 07:11:27,424 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 514.9 MB. Free memory is still 459.5 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 07:11:27,425 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.33 ms. Allocated memory was 514.9 MB in the beginning and 559.9 MB in the end (delta: 45.1 MB). Free memory was 440.1 MB in the beginning and 529.4 MB in the end (delta: -89.3 MB). Peak memory consumption was 29.1 MB. Max. memory is 50.3 GB. [2020-06-22 07:11:27,425 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.70 ms. Allocated memory is still 559.9 MB. Free memory was 529.4 MB in the beginning and 528.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 07:11:27,426 INFO L168 Benchmark]: Boogie Preprocessor took 19.00 ms. Allocated memory is still 559.9 MB. Free memory was 528.0 MB in the beginning and 526.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 07:11:27,426 INFO L168 Benchmark]: RCFGBuilder took 190.65 ms. Allocated memory is still 559.9 MB. Free memory was 526.7 MB in the beginning and 516.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 50.3 GB. [2020-06-22 07:11:27,427 INFO L168 Benchmark]: BlockEncodingV2 took 69.98 ms. Allocated memory is still 559.9 MB. Free memory was 516.0 MB in the beginning and 511.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 50.3 GB. [2020-06-22 07:11:27,427 INFO L168 Benchmark]: TraceAbstraction took 151.19 ms. Allocated memory is still 559.9 MB. Free memory was 511.3 MB in the beginning and 502.5 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 50.3 GB. [2020-06-22 07:11:27,428 INFO L168 Benchmark]: BuchiAutomizer took 2481.97 ms. Allocated memory was 559.9 MB in the beginning and 586.2 MB in the end (delta: 26.2 MB). Free memory was 501.8 MB in the beginning and 411.7 MB in the end (delta: 90.2 MB). Peak memory consumption was 116.4 MB. Max. memory is 50.3 GB. [2020-06-22 07:11:27,432 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 4 locations, 6 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 514.9 MB. Free memory is still 459.5 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 286.33 ms. Allocated memory was 514.9 MB in the beginning and 559.9 MB in the end (delta: 45.1 MB). Free memory was 440.1 MB in the beginning and 529.4 MB in the end (delta: -89.3 MB). Peak memory consumption was 29.1 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.70 ms. Allocated memory is still 559.9 MB. Free memory was 529.4 MB in the beginning and 528.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.00 ms. Allocated memory is still 559.9 MB. Free memory was 528.0 MB in the beginning and 526.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 190.65 ms. Allocated memory is still 559.9 MB. Free memory was 526.7 MB in the beginning and 516.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 69.98 ms. Allocated memory is still 559.9 MB. Free memory was 516.0 MB in the beginning and 511.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 50.3 GB. * TraceAbstraction took 151.19 ms. Allocated memory is still 559.9 MB. Free memory was 511.3 MB in the beginning and 502.5 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2481.97 ms. Allocated memory was 559.9 MB in the beginning and 586.2 MB in the end (delta: 26.2 MB). Free memory was 501.8 MB in the beginning and 411.7 MB in the end (delta: 90.2 MB). Peak memory consumption was 116.4 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: 9]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 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=4occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (4 trivial, 0 deterministic, 1 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function -2 * i + 9 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 12 SDtfs, 13 SDslu, 0 SDs, 0 SdLazy, 64 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc3 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax210 hnf100 lsp47 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq159 hnf94 smp100 dnf100 smp100 tf110 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 13 LassoNonterminationAnalysisSatUnbounded: 5 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 9]: Nontermination argument in form of an infinite program execution. [2020-06-22 07:11:27,441 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 07:11:27,441 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 07:11:27,442 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 07:11:27,442 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 07:11:27,442 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 07:11:27,442 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 07:11:27,443 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 07:11:27,443 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 07:11:27,443 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 07:11:27,443 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 07:11:27,444 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 07:11:27,444 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 07:11:27,444 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 07:11:27,445 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 07:11:27,445 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 07:11:27,445 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 07:11:27,445 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 07:11:27,446 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 07:11:27,446 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 07:11:27,446 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_~i~0=0, ~unnamed0~0~true=1, ~unnamed0~0~false=0, |ULTIMATE.start_main_#res|=0} {~unnamed0~0~true=1, \result=0, ~unnamed0~0~false=0, i=6} {~unnamed0~0~true=1, \result=0, ~unnamed0~0~false=0, i=9} {~unnamed0~0~true=1, \result=0, ~unnamed0~0~false=0, i=12} {~unnamed0~0~true=1, \result=0, ~unnamed0~0~false=0, i=15} {~unnamed0~0~true=1, \result=0, ~unnamed0~0~false=0, i=18} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 1GEVs Lambdas: [0, 1, 0] Mus: [0, 0] - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = 3 [L9] COND TRUE i >= 3 [L10] COND FALSE !(i > 5) [L13] COND FALSE !(i > 10) [L16] i = i+1 [L9] COND TRUE i >= 3 [L10] COND FALSE !(i > 5) [L13] COND FALSE !(i > 10) [L16] i = i+1 [L9] COND TRUE i >= 3 [L10] COND FALSE !(i > 5) [L13] COND FALSE !(i > 10) [L16] i = i+1 Loop: [L9] COND TRUE i >= 3 [L10] COND TRUE i > 5 [L11] i = i+3 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-22 07:11:20.937 ----------------------------------------------- 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 07:11:27.672 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check