YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 03:59:54,320 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 03:59:54,322 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 03:59:54,333 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 03:59:54,334 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 03:59:54,335 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 03:59:54,336 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 03:59:54,337 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 03:59:54,339 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 03:59:54,340 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 03:59:54,340 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 03:59:54,341 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 03:59:54,342 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 03:59:54,342 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 03:59:54,343 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 03:59:54,344 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 03:59:54,345 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 03:59:54,347 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 03:59:54,349 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 03:59:54,350 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 03:59:54,351 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 03:59:54,352 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 03:59:54,354 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 03:59:54,354 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 03:59:54,354 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 03:59:54,355 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 03:59:54,356 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 03:59:54,356 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 03:59:54,357 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 03:59:54,357 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 03:59:54,358 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 03:59:54,359 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 03:59:54,359 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 03:59:54,360 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 03:59:54,360 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 03:59:54,360 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 03:59:54,361 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 03:59:54,361 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 03:59:54,362 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 03:59:54,362 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 03:59:54,376 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 03:59:54,377 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 03:59:54,378 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 03:59:54,378 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 03:59:54,378 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 03:59:54,378 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 03:59:54,378 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 03:59:54,378 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 03:59:54,379 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 03:59:54,379 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 03:59:54,379 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 03:59:54,379 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 03:59:54,379 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 03:59:54,379 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 03:59:54,379 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:59:54,380 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 03:59:54,380 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 03:59:54,380 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 03:59:54,380 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 03:59:54,380 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 03:59:54,380 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 03:59:54,381 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 03:59:54,381 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 03:59:54,381 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 03:59:54,381 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 03:59:54,381 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 03:59:54,381 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 03:59:54,382 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 03:59:54,382 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 03:59:54,407 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 03:59:54,421 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 03:59:54,424 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 03:59:54,425 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 03:59:54,426 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 03:59:54,426 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 03:59:54,489 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/12be0d2305ba46118826f766498ae412/FLAGef98ae27c [2020-06-22 03:59:54,818 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 03:59:54,818 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 03:59:54,825 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/12be0d2305ba46118826f766498ae412/FLAGef98ae27c [2020-06-22 03:59:55,232 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/12be0d2305ba46118826f766498ae412 [2020-06-22 03:59:55,243 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 03:59:55,245 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 03:59:55,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 03:59:55,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 03:59:55,249 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 03:59:55,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 03:59:55" (1/1) ... [2020-06-22 03:59:55,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62548ab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:59:55, skipping insertion in model container [2020-06-22 03:59:55,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 03:59:55" (1/1) ... [2020-06-22 03:59:55,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 03:59:55,278 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 03:59:55,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 03:59:55,437 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 03:59:55,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 03:59:55,535 INFO L195 MainTranslator]: Completed translation [2020-06-22 03:59:55,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:59:55 WrapperNode [2020-06-22 03:59:55,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 03:59:55,536 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 03:59:55,536 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 03:59:55,537 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 03:59:55,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:59:55" (1/1) ... [2020-06-22 03:59:55,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:59:55" (1/1) ... [2020-06-22 03:59:55,572 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 03:59:55,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 03:59:55,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 03:59:55,573 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 03:59:55,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:59:55" (1/1) ... [2020-06-22 03:59:55,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:59:55" (1/1) ... [2020-06-22 03:59:55,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:59:55" (1/1) ... [2020-06-22 03:59:55,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:59:55" (1/1) ... [2020-06-22 03:59:55,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:59:55" (1/1) ... [2020-06-22 03:59:55,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:59:55" (1/1) ... [2020-06-22 03:59:55,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:59:55" (1/1) ... [2020-06-22 03:59:55,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 03:59:55,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 03:59:55,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 03:59:55,593 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 03:59:55,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:59:55" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 03:59:55,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 03:59:55,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 03:59:55,797 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 03:59:55,797 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2020-06-22 03:59:55,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:59:55 BoogieIcfgContainer [2020-06-22 03:59:55,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 03:59:55,799 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 03:59:55,799 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 03:59:55,801 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 03:59:55,802 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:59:55" (1/1) ... [2020-06-22 03:59:55,818 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-06-22 03:59:55,819 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 03:59:55,820 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 03:59:55,821 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 03:59:55,821 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 03:59:55,823 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 03:59:55,824 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 03:59:55,824 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 03:59:55,840 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 03:59:55,854 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 03:59:55,859 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-06-22 03:59:55,861 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 03:59:55,874 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 03:59:55,876 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 03:59:55,878 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 03:59:55,878 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 03:59:55,878 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 03:59:55,878 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 03:59:55,879 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 6 edges [2020-06-22 03:59:55,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 03:59:55 BasicIcfg [2020-06-22 03:59:55,879 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 03:59:55,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 03:59:55,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 03:59:55,884 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 03:59:55,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 03:59:55" (1/4) ... [2020-06-22 03:59:55,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3023de04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 03:59:55, skipping insertion in model container [2020-06-22 03:59:55,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:59:55" (2/4) ... [2020-06-22 03:59:55,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3023de04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 03:59:55, skipping insertion in model container [2020-06-22 03:59:55,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:59:55" (3/4) ... [2020-06-22 03:59:55,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3023de04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 03:59:55, skipping insertion in model container [2020-06-22 03:59:55,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 03:59:55" (4/4) ... [2020-06-22 03:59:55,887 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 03:59:55,897 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 03:59:55,905 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 03:59:55,923 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 03:59:55,951 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 03:59:55,952 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 03:59:55,952 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 03:59:55,952 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 03:59:55,952 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 03:59:55,953 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 03:59:55,953 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 03:59:55,953 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 03:59:55,953 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 03:59:55,967 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-06-22 03:59:55,972 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 03:59:55,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-06-22 03:59:56,027 INFO L451 ceAbstractionStarter]: At program point L16-2(lines 16 17) the Hoare annotation is: true [2020-06-22 03:59:56,027 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 03:59:56,028 INFO L448 ceAbstractionStarter]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2020-06-22 03:59:56,028 INFO L451 ceAbstractionStarter]: At program point L14-2(lines 14 19) the Hoare annotation is: true [2020-06-22 03:59:56,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 03:59:56 BasicIcfg [2020-06-22 03:59:56,036 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 03:59:56,037 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 03:59:56,037 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 03:59:56,040 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 03:59:56,041 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 03:59:56,041 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 03:59:55" (1/5) ... [2020-06-22 03:59:56,042 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@647e2aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 03:59:56, skipping insertion in model container [2020-06-22 03:59:56,042 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 03:59:56,042 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:59:55" (2/5) ... [2020-06-22 03:59:56,042 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@647e2aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 03:59:56, skipping insertion in model container [2020-06-22 03:59:56,042 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 03:59:56,043 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:59:55" (3/5) ... [2020-06-22 03:59:56,043 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@647e2aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 03:59:56, skipping insertion in model container [2020-06-22 03:59:56,043 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 03:59:56,043 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 03:59:55" (4/5) ... [2020-06-22 03:59:56,044 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@647e2aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 03:59:56, skipping insertion in model container [2020-06-22 03:59:56,044 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 03:59:56,044 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 03:59:56" (5/5) ... [2020-06-22 03:59:56,045 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 03:59:56,071 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 03:59:56,072 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 03:59:56,072 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 03:59:56,072 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 03:59:56,072 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 03:59:56,073 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 03:59:56,073 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 03:59:56,073 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 03:59:56,073 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 03:59:56,077 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 03:59:56,094 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 03:59:56,095 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 03:59:56,095 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 03:59:56,100 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 03:59:56,100 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 03:59:56,100 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 03:59:56,100 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 03:59:56,101 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 03:59:56,101 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 03:59:56,101 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 03:59:56,102 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 03:59:56,102 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 03:59:56,107 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [31] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_1|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~i~0] 4#L14-2true [2020-06-22 03:59:56,107 INFO L796 eck$LassoCheckResult]: Loop: 4#L14-2true [35] L14-2-->L16-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_9 5) (= v_ULTIMATE.start_main_~j~0_7 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 6#L16-2true [44] L16-2-->L16-3: Formula: (> v_ULTIMATE.start_main_~j~0_4 9) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_4} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_4} AuxVars[] AssignedVars[] 5#L16-3true [36] L16-3-->L14-2: Formula: (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 1)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_2|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~i~0] 4#L14-2true [2020-06-22 03:59:56,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:59:56,113 INFO L82 PathProgramCache]: Analyzing trace with hash 62, now seen corresponding path program 1 times [2020-06-22 03:59:56,115 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:59:56,116 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:59:56,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:59:56,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:59:56,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:59:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:59:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:59:56,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:59:56,177 INFO L82 PathProgramCache]: Analyzing trace with hash 64826, now seen corresponding path program 1 times [2020-06-22 03:59:56,177 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:59:56,177 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:59:56,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:59:56,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:59:56,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:59:56,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:59:56,227 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 03:59:56,229 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 03:59:56,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 03:59:56,234 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 03:59:56,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 03:59:56,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 03:59:56,250 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states. [2020-06-22 03:59:56,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 03:59:56,272 INFO L93 Difference]: Finished difference Result 7 states and 10 transitions. [2020-06-22 03:59:56,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 03:59:56,276 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. [2020-06-22 03:59:56,277 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-06-22 03:59:56,281 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 10 transitions. [2020-06-22 03:59:56,282 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-06-22 03:59:56,282 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-06-22 03:59:56,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-06-22 03:59:56,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 03:59:56,283 INFO L706 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-06-22 03:59:56,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-06-22 03:59:56,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 5. [2020-06-22 03:59:56,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-06-22 03:59:56,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-06-22 03:59:56,313 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-06-22 03:59:56,313 INFO L609 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-06-22 03:59:56,313 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 03:59:56,313 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 8 transitions. [2020-06-22 03:59:56,314 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 03:59:56,314 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 03:59:56,314 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 03:59:56,314 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 03:59:56,314 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 03:59:56,315 INFO L794 eck$LassoCheckResult]: Stem: 20#ULTIMATE.startENTRY [31] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_1|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~i~0] 21#L14-2 [2020-06-22 03:59:56,315 INFO L796 eck$LassoCheckResult]: Loop: 21#L14-2 [35] L14-2-->L16-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_9 5) (= v_ULTIMATE.start_main_~j~0_7 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 22#L16-2 [45] L16-2-->L16-3: Formula: (>= 2 v_ULTIMATE.start_main_~i~0_4) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_4} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_4} AuxVars[] AssignedVars[] 23#L16-3 [36] L16-3-->L14-2: Formula: (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 1)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_2|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~i~0] 21#L14-2 [2020-06-22 03:59:56,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:59:56,316 INFO L82 PathProgramCache]: Analyzing trace with hash 62, now seen corresponding path program 2 times [2020-06-22 03:59:56,316 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:59:56,316 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:59:56,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:59:56,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:59:56,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:59:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:59:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:59:56,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:59:56,321 INFO L82 PathProgramCache]: Analyzing trace with hash 64857, now seen corresponding path program 1 times [2020-06-22 03:59:56,322 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:59:56,322 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:59:56,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:59:56,323 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 03:59:56,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:59:56,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:59:56,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:59:56,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:59:56,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1882108, now seen corresponding path program 1 times [2020-06-22 03:59:56,332 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:59:56,332 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:59:56,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:59:56,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:59:56,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:59:56,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:59:56,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:59:56,396 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 03:59:56,397 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 03:59:56,397 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 03:59:56,398 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 03:59:56,398 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 03:59:56,398 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:59:56,398 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 03:59:56,398 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 03:59:56,399 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 03:59:56,399 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 03:59:56,399 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 03:59:56,418 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 03:59:56,432 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 03:59:56,436 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 03:59:56,494 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 03:59:56,495 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:59:56,506 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:59:56,506 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:59:56,540 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 03:59:56,540 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:59:56,571 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 03:59:56,573 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 03:59:56,574 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 03:59:56,574 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 03:59:56,574 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 03:59:56,574 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 03:59:56,574 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 03:59:56,574 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 03:59:56,574 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 03:59:56,575 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 03:59:56,575 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 03:59:56,575 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 03:59:56,576 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 03:59:56,580 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 03:59:56,590 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 03:59:56,638 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 03:59:56,643 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 03:59:56,645 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 03:59:56,647 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:59:56,647 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:59:56,648 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:59:56,648 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:59:56,648 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:59:56,650 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:59:56,650 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:59:56,654 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 03:59:56,654 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 03:59:56,655 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:59:56,655 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:59:56,655 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:59:56,655 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:59:56,656 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:59:56,656 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:59:56,657 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:59:56,663 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 03:59:56,670 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 03:59:56,670 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 03:59:56,672 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 03:59:56,672 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 03:59:56,672 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 03:59:56,673 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 5 Supporting invariants [] [2020-06-22 03:59:56,675 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 03:59:56,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:59:56,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:59:56,719 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 03:59:56,721 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:59:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:59:56,730 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 03:59:56,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:59:56,751 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 03:59:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:59:56,777 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 03:59:56,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:59:56,810 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 03:59:56,813 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 3 loop predicates [2020-06-22 03:59:56,813 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 4 Second operand 4 states. [2020-06-22 03:59:56,913 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 20 states and 31 transitions. Complement of second has 9 states. [2020-06-22 03:59:56,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2020-06-22 03:59:56,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 03:59:56,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2020-06-22 03:59:56,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 03:59:56,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:59:56,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 03:59:56,920 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:59:56,920 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 03:59:56,920 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:59:56,925 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 31 transitions. [2020-06-22 03:59:56,926 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-06-22 03:59:56,927 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 19 states and 29 transitions. [2020-06-22 03:59:56,927 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-06-22 03:59:56,928 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-06-22 03:59:56,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 29 transitions. [2020-06-22 03:59:56,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 03:59:56,928 INFO L706 BuchiCegarLoop]: Abstraction has 19 states and 29 transitions. [2020-06-22 03:59:56,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 29 transitions. [2020-06-22 03:59:56,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 12. [2020-06-22 03:59:56,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-06-22 03:59:56,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 18 transitions. [2020-06-22 03:59:56,930 INFO L729 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2020-06-22 03:59:56,930 INFO L609 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2020-06-22 03:59:56,931 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 03:59:56,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 18 transitions. [2020-06-22 03:59:56,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 03:59:56,932 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 03:59:56,932 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 03:59:56,932 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 03:59:56,932 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-22 03:59:56,933 INFO L794 eck$LassoCheckResult]: Stem: 96#ULTIMATE.startENTRY [31] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_1|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~i~0] 97#L14-2 [35] L14-2-->L16-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_9 5) (= v_ULTIMATE.start_main_~j~0_7 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 99#L16-2 [2020-06-22 03:59:56,933 INFO L796 eck$LassoCheckResult]: Loop: 99#L16-2 [40] L16-2-->L16-2: Formula: (and (<= v_ULTIMATE.start_main_~j~0_6 9) (< 2 v_ULTIMATE.start_main_~i~0_5) (= (+ v_ULTIMATE.start_main_~j~0_6 1) v_ULTIMATE.start_main_~j~0_5)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} OutVars{ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~post2] 105#L16-2 [44] L16-2-->L16-3: Formula: (> v_ULTIMATE.start_main_~j~0_4 9) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_4} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_4} AuxVars[] AssignedVars[] 102#L16-3 [36] L16-3-->L14-2: Formula: (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 1)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_2|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~i~0] 98#L14-2 [35] L14-2-->L16-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_9 5) (= v_ULTIMATE.start_main_~j~0_7 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 99#L16-2 [2020-06-22 03:59:56,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:59:56,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1957, now seen corresponding path program 1 times [2020-06-22 03:59:56,933 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:59:56,934 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:59:56,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:59:56,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:59:56,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:59:56,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:59:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:59:56,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:59:56,940 INFO L82 PathProgramCache]: Analyzing trace with hash 2158596, now seen corresponding path program 1 times [2020-06-22 03:59:56,941 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:59:56,941 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:59:56,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:59:56,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:59:56,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:59:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:59:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:59:56,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:59:56,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1808565672, now seen corresponding path program 1 times [2020-06-22 03:59:56,950 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:59:56,950 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:59:56,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:59:56,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:59:56,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:59:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:59:56,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 03:59:56,969 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 03:59:56,969 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 03:59:56,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:59:56,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:59:56,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjunts are in the unsatisfiable core [2020-06-22 03:59:56,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:59:56,992 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 03:59:57,018 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 03:59:57,019 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-06-22 03:59:57,051 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 03:59:57,052 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 03:59:57,052 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 03:59:57,052 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 03:59:57,052 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 03:59:57,052 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:59:57,052 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 03:59:57,052 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 03:59:57,052 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 03:59:57,053 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 03:59:57,053 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 03:59:57,054 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 03:59:57,065 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 03:59:57,073 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 03:59:57,078 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 03:59:57,140 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 03:59:57,140 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:59:57,145 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:59:57,145 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:59:57,151 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 03:59:57,151 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3=0} Honda state: {ULTIMATE.start_main_#t~post3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:59:57,180 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:59:57,180 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:59:57,214 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 03:59:57,214 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:59:57,221 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 03:59:57,247 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 03:59:57,247 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 03:59:57,247 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 03:59:57,247 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 03:59:57,247 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 03:59:57,247 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 03:59:57,248 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 03:59:57,248 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 03:59:57,248 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 03:59:57,248 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 03:59:57,248 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 03:59:57,251 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 03:59:57,269 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 03:59:57,272 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 03:59:57,282 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 03:59:57,352 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 03:59:57,352 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 03:59:57,353 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 03:59:57,353 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:59:57,354 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:59:57,354 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:59:57,354 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:59:57,354 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:59:57,355 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:59:57,355 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:59:57,360 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 03:59:57,364 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 03:59:57,364 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 03:59:57,365 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 03:59:57,365 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 03:59:57,365 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 03:59:57,366 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2020-06-22 03:59:57,366 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 03:59:57,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:59:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:59:57,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 03:59:57,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:59:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:59:57,403 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 03:59:57,404 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:59:57,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 03:59:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:59:57,432 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 3 conjunts are in the unsatisfiable core [2020-06-22 03:59:57,432 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:59:57,457 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 6 predicates after loop cannibalization [2020-06-22 03:59:57,458 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 6 loop predicates [2020-06-22 03:59:57,458 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 12 states and 18 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-06-22 03:59:57,674 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 12 states and 18 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 125 states and 189 transitions. Complement of second has 36 states. [2020-06-22 03:59:57,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2020-06-22 03:59:57,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 03:59:57,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 35 transitions. [2020-06-22 03:59:57,677 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 35 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 03:59:57,678 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:59:57,678 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 35 transitions. Stem has 6 letters. Loop has 4 letters. [2020-06-22 03:59:57,678 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:59:57,678 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 35 transitions. Stem has 2 letters. Loop has 8 letters. [2020-06-22 03:59:57,679 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:59:57,681 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 189 transitions. [2020-06-22 03:59:57,687 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 03:59:57,690 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 26 states and 39 transitions. [2020-06-22 03:59:57,690 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-06-22 03:59:57,690 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-06-22 03:59:57,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 39 transitions. [2020-06-22 03:59:57,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 03:59:57,691 INFO L706 BuchiCegarLoop]: Abstraction has 26 states and 39 transitions. [2020-06-22 03:59:57,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 39 transitions. [2020-06-22 03:59:57,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 14. [2020-06-22 03:59:57,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-06-22 03:59:57,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 21 transitions. [2020-06-22 03:59:57,694 INFO L729 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2020-06-22 03:59:57,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 03:59:57,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-06-22 03:59:57,695 INFO L87 Difference]: Start difference. First operand 14 states and 21 transitions. Second operand 4 states. [2020-06-22 03:59:57,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 03:59:57,712 INFO L93 Difference]: Finished difference Result 18 states and 27 transitions. [2020-06-22 03:59:57,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-22 03:59:57,714 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 27 transitions. [2020-06-22 03:59:57,715 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 03:59:57,715 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 27 transitions. [2020-06-22 03:59:57,716 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-06-22 03:59:57,716 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-06-22 03:59:57,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 27 transitions. [2020-06-22 03:59:57,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 03:59:57,716 INFO L706 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2020-06-22 03:59:57,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 27 transitions. [2020-06-22 03:59:57,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2020-06-22 03:59:57,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-06-22 03:59:57,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 21 transitions. [2020-06-22 03:59:57,718 INFO L729 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2020-06-22 03:59:57,719 INFO L609 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2020-06-22 03:59:57,719 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 03:59:57,719 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 21 transitions. [2020-06-22 03:59:57,720 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 03:59:57,720 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 03:59:57,720 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 03:59:57,720 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 03:59:57,720 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1] [2020-06-22 03:59:57,721 INFO L794 eck$LassoCheckResult]: Stem: 371#ULTIMATE.startENTRY [31] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_1|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~i~0] 372#L14-2 [35] L14-2-->L16-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_9 5) (= v_ULTIMATE.start_main_~j~0_7 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 374#L16-2 [2020-06-22 03:59:57,721 INFO L796 eck$LassoCheckResult]: Loop: 374#L16-2 [40] L16-2-->L16-2: Formula: (and (<= v_ULTIMATE.start_main_~j~0_6 9) (< 2 v_ULTIMATE.start_main_~i~0_5) (= (+ v_ULTIMATE.start_main_~j~0_6 1) v_ULTIMATE.start_main_~j~0_5)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} OutVars{ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~post2] 380#L16-2 [40] L16-2-->L16-2: Formula: (and (<= v_ULTIMATE.start_main_~j~0_6 9) (< 2 v_ULTIMATE.start_main_~i~0_5) (= (+ v_ULTIMATE.start_main_~j~0_6 1) v_ULTIMATE.start_main_~j~0_5)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} OutVars{ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~post2] 382#L16-2 [44] L16-2-->L16-3: Formula: (> v_ULTIMATE.start_main_~j~0_4 9) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_4} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_4} AuxVars[] AssignedVars[] 377#L16-3 [36] L16-3-->L14-2: Formula: (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 1)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_2|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~i~0] 373#L14-2 [35] L14-2-->L16-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_9 5) (= v_ULTIMATE.start_main_~j~0_7 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 374#L16-2 [2020-06-22 03:59:57,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:59:57,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1957, now seen corresponding path program 2 times [2020-06-22 03:59:57,721 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:59:57,721 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:59:57,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:59:57,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:59:57,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:59:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:59:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:59:57,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:59:57,727 INFO L82 PathProgramCache]: Analyzing trace with hash 66805066, now seen corresponding path program 2 times [2020-06-22 03:59:57,727 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:59:57,727 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:59:57,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:59:57,728 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 03:59:57,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:59:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:59:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:59:57,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:59:57,737 INFO L82 PathProgramCache]: Analyzing trace with hash 230849574, now seen corresponding path program 2 times [2020-06-22 03:59:57,737 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:59:57,738 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:59:57,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:59:57,738 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 03:59:57,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:59:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:59:57,762 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 03:59:57,762 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 03:59:57,762 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 03:59:57,773 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2020-06-22 03:59:57,781 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-06-22 03:59:57,781 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 03:59:57,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 03:59:57,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:59:57,786 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 03:59:57,813 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 03:59:57,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-06-22 03:59:57,862 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 03:59:57,862 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 03:59:57,862 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 03:59:57,862 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 03:59:57,863 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 03:59:57,863 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:59:57,863 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 03:59:57,863 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 03:59:57,863 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 03:59:57,864 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 03:59:57,864 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 03:59:57,865 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 03:59:57,867 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 03:59:57,869 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 03:59:57,878 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 03:59:57,925 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 03:59:57,925 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:59:57,932 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:59:57,933 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:59:57,936 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 03:59:57,936 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:59:57,963 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:59:57,963 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:59:57,966 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 03:59:57,967 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3=0} Honda state: {ULTIMATE.start_main_#t~post3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:59:57,997 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:59:57,997 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:59:58,031 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 03:59:58,032 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:59:58,063 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 03:59:58,065 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 03:59:58,065 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 03:59:58,065 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 03:59:58,065 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 03:59:58,065 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 03:59:58,065 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 03:59:58,066 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 03:59:58,066 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 03:59:58,066 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 03:59:58,066 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 03:59:58,066 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 03:59:58,067 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 03:59:58,070 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 03:59:58,076 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 03:59:58,078 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 03:59:58,147 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 03:59:58,148 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 03:59:58,148 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 03:59:58,149 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:59:58,149 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:59:58,150 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:59:58,150 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:59:58,150 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:59:58,150 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:59:58,150 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:59:58,152 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 03:59:58,153 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 03:59:58,153 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:59:58,153 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:59:58,153 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:59:58,153 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:59:58,153 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:59:58,154 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:59:58,154 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:59:58,159 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 03:59:58,162 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 03:59:58,162 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 03:59:58,163 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 03:59:58,163 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 03:59:58,163 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 03:59:58,163 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 7 Supporting invariants [] [2020-06-22 03:59:58,164 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 03:59:58,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:59:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:59:58,179 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 03:59:58,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:59:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:59:58,184 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 03:59:58,185 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:59:58,195 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-06-22 03:59:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:59:58,200 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 03:59:58,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:59:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:59:58,239 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 03:59:58,239 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:59:58,707 WARN L188 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-06-22 03:59:59,148 WARN L188 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-06-22 03:59:59,592 WARN L188 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-06-22 04:00:01,285 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~i~0 Int)) (<= 7 (+ c_oldRank0 (* 2 ULTIMATE.start_main_~i~0)))) is different from true [2020-06-22 04:00:02,572 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 8 predicates after loop cannibalization [2020-06-22 04:00:02,573 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 8 loop predicates [2020-06-22 04:00:02,573 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 14 states and 21 transitions. cyclomatic complexity: 9 Second operand 4 states. [2020-06-22 04:00:04,159 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 14 states and 21 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 84 states and 115 transitions. Complement of second has 36 states. [2020-06-22 04:00:04,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 1 stem states 8 non-accepting loop states 1 accepting loop states [2020-06-22 04:00:04,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 04:00:04,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 30 transitions. [2020-06-22 04:00:04,161 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 30 transitions. Stem has 2 letters. Loop has 5 letters. [2020-06-22 04:00:04,161 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:00:04,161 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 30 transitions. Stem has 7 letters. Loop has 5 letters. [2020-06-22 04:00:04,161 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:00:04,162 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 30 transitions. Stem has 2 letters. Loop has 10 letters. [2020-06-22 04:00:04,162 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:00:04,163 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 115 transitions. [2020-06-22 04:00:04,166 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 04:00:04,167 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 26 states and 39 transitions. [2020-06-22 04:00:04,167 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-06-22 04:00:04,167 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-06-22 04:00:04,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 39 transitions. [2020-06-22 04:00:04,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 04:00:04,168 INFO L706 BuchiCegarLoop]: Abstraction has 26 states and 39 transitions. [2020-06-22 04:00:04,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 39 transitions. [2020-06-22 04:00:04,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 18. [2020-06-22 04:00:04,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-06-22 04:00:04,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 28 transitions. [2020-06-22 04:00:04,170 INFO L729 BuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2020-06-22 04:00:04,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 04:00:04,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-06-22 04:00:04,171 INFO L87 Difference]: Start difference. First operand 18 states and 28 transitions. Second operand 5 states. [2020-06-22 04:00:04,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 04:00:04,193 INFO L93 Difference]: Finished difference Result 26 states and 39 transitions. [2020-06-22 04:00:04,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-06-22 04:00:04,195 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 39 transitions. [2020-06-22 04:00:04,196 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 04:00:04,196 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 26 states and 39 transitions. [2020-06-22 04:00:04,196 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 04:00:04,197 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-06-22 04:00:04,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 39 transitions. [2020-06-22 04:00:04,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 04:00:04,197 INFO L706 BuchiCegarLoop]: Abstraction has 26 states and 39 transitions. [2020-06-22 04:00:04,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 39 transitions. [2020-06-22 04:00:04,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 18. [2020-06-22 04:00:04,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-06-22 04:00:04,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 28 transitions. [2020-06-22 04:00:04,199 INFO L729 BuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2020-06-22 04:00:04,199 INFO L609 BuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2020-06-22 04:00:04,199 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 04:00:04,199 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 28 transitions. [2020-06-22 04:00:04,200 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 04:00:04,200 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:00:04,200 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:00:04,200 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-22 04:00:04,201 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 04:00:04,201 INFO L794 eck$LassoCheckResult]: Stem: 656#ULTIMATE.startENTRY [31] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_1|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~i~0] 657#L14-2 [35] L14-2-->L16-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_9 5) (= v_ULTIMATE.start_main_~j~0_7 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 658#L16-2 [40] L16-2-->L16-2: Formula: (and (<= v_ULTIMATE.start_main_~j~0_6 9) (< 2 v_ULTIMATE.start_main_~i~0_5) (= (+ v_ULTIMATE.start_main_~j~0_6 1) v_ULTIMATE.start_main_~j~0_5)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} OutVars{ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~post2] 663#L16-2 [2020-06-22 04:00:04,201 INFO L796 eck$LassoCheckResult]: Loop: 663#L16-2 [40] L16-2-->L16-2: Formula: (and (<= v_ULTIMATE.start_main_~j~0_6 9) (< 2 v_ULTIMATE.start_main_~i~0_5) (= (+ v_ULTIMATE.start_main_~j~0_6 1) v_ULTIMATE.start_main_~j~0_5)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} OutVars{ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~post2] 663#L16-2 [2020-06-22 04:00:04,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:00:04,201 INFO L82 PathProgramCache]: Analyzing trace with hash 60707, now seen corresponding path program 1 times [2020-06-22 04:00:04,201 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:00:04,202 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:00:04,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:00:04,203 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 04:00:04,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:00:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:00:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:00:04,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:00:04,209 INFO L82 PathProgramCache]: Analyzing trace with hash 71, now seen corresponding path program 1 times [2020-06-22 04:00:04,209 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:00:04,209 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:00:04,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:00:04,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:00:04,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:00:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:00:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:00:04,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:00:04,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1881957, now seen corresponding path program 2 times [2020-06-22 04:00:04,214 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:00:04,214 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:00:04,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:00:04,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:00:04,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:00:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:00:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:00:04,245 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:00:04,245 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:00:04,245 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:00:04,245 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:00:04,245 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 04:00:04,245 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:00:04,245 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:00:04,246 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:00:04,246 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-06-22 04:00:04,246 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:00:04,246 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:00:04,247 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 04:00:04,250 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 04:00:04,256 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 04:00:04,280 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:00:04,281 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:00:04,289 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:00:04,289 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:00:04,317 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:00:04,317 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=3} Honda state: {ULTIMATE.start_main_~i~0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 04:00:04,322 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:00:04,323 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/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 04:00:04,353 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 04:00:04,354 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:00:04,384 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 04:00:04,386 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:00:04,386 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:00:04,387 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:00:04,387 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:00:04,387 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 04:00:04,387 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 04:00:04,387 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:00:04,387 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:00:04,387 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-06-22 04:00:04,387 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:00:04,387 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:00:04,388 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 04:00:04,399 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 04:00:04,409 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 04:00:04,437 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:00:04,437 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 04:00:04,437 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 04:00:04,438 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:00:04,438 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:00:04,438 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:00:04,438 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:00:04,439 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:00:04,439 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:00:04,439 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:00:04,440 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:00:04,441 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 04:00:04,441 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:00:04,441 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:00:04,441 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:00:04,442 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:00:04,442 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:00:04,442 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:00:04,442 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:00:04,446 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 04:00:04,449 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 04:00:04,449 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 04:00:04,450 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 04:00:04,450 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 04:00:04,450 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 04:00:04,450 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 19 Supporting invariants [] [2020-06-22 04:00:04,450 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 04:00:04,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:00:04,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:00:04,476 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 04:00:04,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:00:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:00:04,481 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 04:00:04,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:00:04,481 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 04:00:04,481 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 04:00:04,482 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 1 loop predicates [2020-06-22 04:00:04,482 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 18 states and 28 transitions. cyclomatic complexity: 13 Second operand 2 states. [2020-06-22 04:00:04,494 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 18 states and 28 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 27 states and 40 transitions. Complement of second has 4 states. [2020-06-22 04:00:04,495 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 04:00:04,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 04:00:04,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-06-22 04:00:04,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2020-06-22 04:00:04,496 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:00:04,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 4 letters. Loop has 1 letters. [2020-06-22 04:00:04,496 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:00:04,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 04:00:04,496 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:00:04,497 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 40 transitions. [2020-06-22 04:00:04,498 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 04:00:04,498 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 0 states and 0 transitions. [2020-06-22 04:00:04,499 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 04:00:04,499 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 04:00:04,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 04:00:04,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 04:00:04,499 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 04:00:04,499 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 04:00:04,499 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 04:00:04,499 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2020-06-22 04:00:04,499 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 04:00:04,499 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 04:00:04,500 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 04:00:04,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 04:00:04 BasicIcfg [2020-06-22 04:00:04,506 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 04:00:04,506 INFO L168 Benchmark]: Toolchain (without parser) took 9262.42 ms. Allocated memory was 649.6 MB in the beginning and 762.3 MB in the end (delta: 112.7 MB). Free memory was 563.6 MB in the beginning and 586.2 MB in the end (delta: -22.5 MB). Peak memory consumption was 90.2 MB. Max. memory is 50.3 GB. [2020-06-22 04:00:04,507 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 04:00:04,507 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.11 ms. Allocated memory was 649.6 MB in the beginning and 704.6 MB in the end (delta: 55.1 MB). Free memory was 563.6 MB in the beginning and 671.3 MB in the end (delta: -107.7 MB). Peak memory consumption was 30.6 MB. Max. memory is 50.3 GB. [2020-06-22 04:00:04,508 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.02 ms. Allocated memory is still 704.6 MB. Free memory was 671.3 MB in the beginning and 670.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 04:00:04,509 INFO L168 Benchmark]: Boogie Preprocessor took 20.24 ms. Allocated memory is still 704.6 MB. Free memory was 670.2 MB in the beginning and 667.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. [2020-06-22 04:00:04,509 INFO L168 Benchmark]: RCFGBuilder took 205.32 ms. Allocated memory is still 704.6 MB. Free memory was 666.3 MB in the beginning and 653.9 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 50.3 GB. [2020-06-22 04:00:04,510 INFO L168 Benchmark]: BlockEncodingV2 took 80.55 ms. Allocated memory is still 704.6 MB. Free memory was 653.9 MB in the beginning and 648.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 04:00:04,510 INFO L168 Benchmark]: TraceAbstraction took 155.81 ms. Allocated memory is still 704.6 MB. Free memory was 648.5 MB in the beginning and 638.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 50.3 GB. [2020-06-22 04:00:04,511 INFO L168 Benchmark]: BuchiAutomizer took 8469.29 ms. Allocated memory was 704.6 MB in the beginning and 762.3 MB in the end (delta: 57.7 MB). Free memory was 638.8 MB in the beginning and 586.2 MB in the end (delta: 52.7 MB). Peak memory consumption was 110.3 MB. Max. memory is 50.3 GB. [2020-06-22 04:00:04,516 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 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 290.11 ms. Allocated memory was 649.6 MB in the beginning and 704.6 MB in the end (delta: 55.1 MB). Free memory was 563.6 MB in the beginning and 671.3 MB in the end (delta: -107.7 MB). Peak memory consumption was 30.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 36.02 ms. Allocated memory is still 704.6 MB. Free memory was 671.3 MB in the beginning and 670.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.24 ms. Allocated memory is still 704.6 MB. Free memory was 670.2 MB in the beginning and 667.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. * RCFGBuilder took 205.32 ms. Allocated memory is still 704.6 MB. Free memory was 666.3 MB in the beginning and 653.9 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 80.55 ms. Allocated memory is still 704.6 MB. Free memory was 653.9 MB in the beginning and 648.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 155.81 ms. Allocated memory is still 704.6 MB. Free memory was 648.5 MB in the beginning and 638.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 8469.29 ms. Allocated memory was 704.6 MB in the beginning and 762.3 MB in the end (delta: 57.7 MB). Free memory was 638.8 MB in the beginning and 586.2 MB in the end (delta: 52.7 MB). Peak memory consumption was 110.3 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (3 trivial, 0 deterministic, 4 nondeterministic). One nondeterministic module has affine ranking function -2 * i + 5 and consists of 6 locations. One nondeterministic module has affine ranking function j and consists of 8 locations. One nondeterministic module has affine ranking function -2 * i + 7 and consists of 11 locations. One nondeterministic module has affine ranking function -2 * j + 19 and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.4s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 1.6s. Construction of modules took 0.1s. Büchi inclusion checks took 6.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 41 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 4. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 3/4 HoareTripleCheckerStatistics: 32 SDtfs, 75 SDslu, 37 SDs, 0 SdLazy, 128 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp68 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp88 dnf100 smp100 tf113 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 03:59:52.023 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 04:00:04.750 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check