YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 07:33:09,422 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 07:33:09,424 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 07:33:09,435 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 07:33:09,435 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 07:33:09,436 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 07:33:09,438 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 07:33:09,439 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 07:33:09,441 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 07:33:09,442 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 07:33:09,443 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 07:33:09,443 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 07:33:09,444 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 07:33:09,444 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 07:33:09,446 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 07:33:09,446 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 07:33:09,447 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 07:33:09,449 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 07:33:09,451 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 07:33:09,452 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 07:33:09,453 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 07:33:09,454 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 07:33:09,456 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 07:33:09,456 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 07:33:09,456 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 07:33:09,457 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 07:33:09,458 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 07:33:09,458 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 07:33:09,459 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 07:33:09,459 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 07:33:09,460 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 07:33:09,461 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 07:33:09,462 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 07:33:09,462 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 07:33:09,462 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 07:33:09,463 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 07:33:09,463 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 07:33:09,464 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 07:33:09,464 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 07:33:09,465 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 07:33:09,479 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 07:33:09,479 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 07:33:09,480 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 07:33:09,480 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 07:33:09,481 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 07:33:09,481 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 07:33:09,481 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 07:33:09,481 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 07:33:09,481 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 07:33:09,482 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 07:33:09,482 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 07:33:09,482 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 07:33:09,482 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 07:33:09,482 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 07:33:09,482 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:33:09,483 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 07:33:09,483 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 07:33:09,483 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 07:33:09,483 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 07:33:09,483 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 07:33:09,483 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 07:33:09,484 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 07:33:09,484 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 07:33:09,484 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 07:33:09,484 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 07:33:09,484 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 07:33:09,484 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 07:33:09,485 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 07:33:09,485 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 07:33:09,510 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 07:33:09,523 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 07:33:09,527 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 07:33:09,528 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 07:33:09,528 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 07:33:09,529 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 07:33:09,594 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/2ef153007cd740219f882fdfbbab5238/FLAG05ac565ea [2020-06-22 07:33:09,929 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 07:33:09,930 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 07:33:09,936 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/2ef153007cd740219f882fdfbbab5238/FLAG05ac565ea [2020-06-22 07:33:10,353 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/2ef153007cd740219f882fdfbbab5238 [2020-06-22 07:33:10,364 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 07:33:10,367 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 07:33:10,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 07:33:10,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 07:33:10,371 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 07:33:10,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 07:33:10" (1/1) ... [2020-06-22 07:33:10,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61bb0dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:33:10, skipping insertion in model container [2020-06-22 07:33:10,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 07:33:10" (1/1) ... [2020-06-22 07:33:10,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 07:33:10,400 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 07:33:10,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 07:33:10,560 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 07:33:10,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 07:33:10,643 INFO L195 MainTranslator]: Completed translation [2020-06-22 07:33:10,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:33:10 WrapperNode [2020-06-22 07:33:10,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 07:33:10,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 07:33:10,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 07:33:10,645 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 07:33:10,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:33:10" (1/1) ... [2020-06-22 07:33:10,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:33:10" (1/1) ... [2020-06-22 07:33:10,678 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 07:33:10,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 07:33:10,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 07:33:10,679 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 07:33:10,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:33:10" (1/1) ... [2020-06-22 07:33:10,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:33:10" (1/1) ... [2020-06-22 07:33:10,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:33:10" (1/1) ... [2020-06-22 07:33:10,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:33:10" (1/1) ... [2020-06-22 07:33:10,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:33:10" (1/1) ... [2020-06-22 07:33:10,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:33:10" (1/1) ... [2020-06-22 07:33:10,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:33:10" (1/1) ... [2020-06-22 07:33:10,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 07:33:10,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 07:33:10,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 07:33:10,698 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 07:33:10,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:33:10" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 07:33:10,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 07:33:10,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 07:33:10,899 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 07:33:10,899 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2020-06-22 07:33:10,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:33:10 BoogieIcfgContainer [2020-06-22 07:33:10,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 07:33:10,901 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 07:33:10,901 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 07:33:10,903 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 07:33:10,904 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:33:10" (1/1) ... [2020-06-22 07:33:10,918 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 11 edges [2020-06-22 07:33:10,919 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 07:33:10,920 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 07:33:10,921 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 07:33:10,921 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 07:33:10,923 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 07:33:10,924 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 07:33:10,924 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 07:33:10,938 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 07:33:10,945 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 07:33:10,949 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 07:33:10,951 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 07:33:10,965 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-06-22 07:33:10,968 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 07:33:10,969 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 07:33:10,969 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 07:33:10,969 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 07:33:10,970 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 07:33:10,970 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 5 edges [2020-06-22 07:33:10,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:33:10 BasicIcfg [2020-06-22 07:33:10,971 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 07:33:10,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 07:33:10,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 07:33:10,975 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 07:33:10,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 07:33:10" (1/4) ... [2020-06-22 07:33:10,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d455d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 07:33:10, skipping insertion in model container [2020-06-22 07:33:10,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:33:10" (2/4) ... [2020-06-22 07:33:10,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d455d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 07:33:10, skipping insertion in model container [2020-06-22 07:33:10,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:33:10" (3/4) ... [2020-06-22 07:33:10,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d455d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:33:10, skipping insertion in model container [2020-06-22 07:33:10,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:33:10" (4/4) ... [2020-06-22 07:33:10,979 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 07:33:10,988 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 07:33:10,996 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 07:33:11,013 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 07:33:11,042 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 07:33:11,042 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 07:33:11,042 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 07:33:11,043 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 07:33:11,043 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 07:33:11,043 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 07:33:11,043 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 07:33:11,043 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 07:33:11,043 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 07:33:11,057 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-06-22 07:33:11,063 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 07:33:11,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-06-22 07:33:11,113 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 07:33:11,114 INFO L448 ceAbstractionStarter]: For program point L7(lines 7 11) no Hoare annotation was computed. [2020-06-22 07:33:11,114 INFO L448 ceAbstractionStarter]: For program point L7-2(lines 7 11) no Hoare annotation was computed. [2020-06-22 07:33:11,114 INFO L451 ceAbstractionStarter]: At program point L6-2(lines 6 13) the Hoare annotation is: true [2020-06-22 07:33:11,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:33:11 BasicIcfg [2020-06-22 07:33:11,122 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 07:33:11,123 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 07:33:11,123 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 07:33:11,126 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 07:33:11,127 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:33:11,127 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 07:33:10" (1/5) ... [2020-06-22 07:33:11,128 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33e5db14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 07:33:11, skipping insertion in model container [2020-06-22 07:33:11,128 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:33:11,128 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:33:10" (2/5) ... [2020-06-22 07:33:11,129 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33e5db14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 07:33:11, skipping insertion in model container [2020-06-22 07:33:11,129 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:33:11,129 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:33:10" (3/5) ... [2020-06-22 07:33:11,129 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33e5db14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:33:11, skipping insertion in model container [2020-06-22 07:33:11,129 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:33:11,130 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:33:10" (4/5) ... [2020-06-22 07:33:11,130 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33e5db14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:33:11, skipping insertion in model container [2020-06-22 07:33:11,130 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:33:11,130 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:33:11" (5/5) ... [2020-06-22 07:33:11,132 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 07:33:11,158 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 07:33:11,158 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 07:33:11,159 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 07:33:11,159 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 07:33:11,159 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 07:33:11,159 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 07:33:11,160 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 07:33:11,160 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 07:33:11,160 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 07:33:11,163 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 07:33:11,181 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 07:33:11,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:33:11,182 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:33:11,187 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 07:33:11,187 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 07:33:11,187 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 07:33:11,188 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 07:33:11,188 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 07:33:11,188 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:33:11,188 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:33:11,189 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 07:33:11,189 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 07:33:11,194 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [28] ULTIMATE.startENTRY-->L6-2: Formula: (and (= |v_ULTIMATE.start_test_fun_#in~z_1| |v_ULTIMATE.start_main_#t~nondet2_1|) (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= v_ULTIMATE.start_test_fun_~z_1 |v_ULTIMATE.start_test_fun_#in~z_1|) (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_test_fun_#in~z=|v_ULTIMATE.start_test_fun_#in~z_1|, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_1, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_test_fun_#in~z, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_~z, ULTIMATE.start_test_fun_#in~x, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_main_#t~ret3] 6#L6-2true [2020-06-22 07:33:11,195 INFO L796 eck$LassoCheckResult]: Loop: 6#L6-2true [37] L6-2-->L7: Formula: (< v_ULTIMATE.start_test_fun_~x_4 v_ULTIMATE.start_test_fun_~y_4) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 5#L7true [39] L7-->L7-2: Formula: (and (>= v_ULTIMATE.start_test_fun_~x_7 v_ULTIMATE.start_test_fun_~z_5) (= v_ULTIMATE.start_test_fun_~z_4 (+ v_ULTIMATE.start_test_fun_~z_5 1))) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_5} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_4} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~z] 3#L7-2true [27] L7-2-->L6-2: Formula: (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) InVars {ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4} OutVars{ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~c~0] 6#L6-2true [2020-06-22 07:33:11,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:33:11,201 INFO L82 PathProgramCache]: Analyzing trace with hash 59, now seen corresponding path program 1 times [2020-06-22 07:33:11,203 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:33:11,204 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:33:11,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:11,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:33:11,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:11,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:11,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:33:11,274 INFO L82 PathProgramCache]: Analyzing trace with hash 66584, now seen corresponding path program 1 times [2020-06-22 07:33:11,274 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:33:11,274 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:33:11,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:11,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:33:11,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:11,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:33:11,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1794462, now seen corresponding path program 1 times [2020-06-22 07:33:11,290 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:33:11,290 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:33:11,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:11,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:33:11,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:11,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:11,357 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:33:11,358 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:33:11,359 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:33:11,359 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:33:11,359 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:33:11,359 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:33:11,359 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:33:11,359 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:33:11,360 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 07:33:11,360 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:33:11,360 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:33:11,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:33:11,388 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 07:33:11,455 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:33:11,455 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:33:11,463 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:33:11,463 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:33:11,496 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:33:11,496 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:33:11,517 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:33:11,518 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_fun_~c~0=0} Honda state: {ULTIMATE.start_test_fun_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_test_fun_~c~0=-4}, {ULTIMATE.start_test_fun_~c~0=7}, {ULTIMATE.start_test_fun_~c~0=-2}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:33:11,545 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:33:11,545 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:33:11,576 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:33:11,576 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:33:11,860 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 07:33:11,863 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:33:11,863 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:33:11,863 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:33:11,863 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:33:11,863 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 07:33:11,863 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 07:33:11,863 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:33:11,864 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:33:11,864 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 07:33:11,864 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:33:11,864 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:33:11,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:33:11,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:33:11,926 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:33:11,931 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 07:33:11,933 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 07:33:11,935 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:33:11,935 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:33:11,936 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:33:11,936 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:33:11,936 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:33:11,938 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:33:11,938 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:33:11,946 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:33:11,946 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 07:33:11,947 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:33:11,947 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:33:11,948 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:33:11,948 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:33:11,948 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:33:11,949 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:33:11,949 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:33:11,956 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 07:33:11,963 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 07:33:11,963 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 07:33:11,965 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 07:33:11,966 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 07:33:11,966 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 07:33:11,966 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~z, ULTIMATE.start_test_fun_~x) = -2*ULTIMATE.start_test_fun_~z + 2*ULTIMATE.start_test_fun_~x + 1 Supporting invariants [] [2020-06-22 07:33:11,968 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 07:33:12,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:33:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:33:12,025 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 07:33:12,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:33:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:33:12,038 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 07:33:12,038 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:33:12,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 07:33:12,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:33:12,089 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 07:33:12,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:33:12,090 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 07:33:12,095 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 07:33:12,096 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 4 states. [2020-06-22 07:33:12,124 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 4 states. Result 11 states and 14 transitions. Complement of second has 4 states. [2020-06-22 07:33:12,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 07:33:12,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 07:33:12,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2020-06-22 07:33:12,128 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 07:33:12,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:33:12,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 07:33:12,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:33:12,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 07:33:12,131 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:33:12,137 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2020-06-22 07:33:12,138 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 07:33:12,143 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 14 transitions. [2020-06-22 07:33:12,144 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 07:33:12,144 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-06-22 07:33:12,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2020-06-22 07:33:12,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 07:33:12,145 INFO L706 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-06-22 07:33:12,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2020-06-22 07:33:12,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-06-22 07:33:12,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-06-22 07:33:12,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2020-06-22 07:33:12,174 INFO L729 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-06-22 07:33:12,174 INFO L609 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-06-22 07:33:12,174 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 07:33:12,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2020-06-22 07:33:12,175 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 07:33:12,175 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:33:12,175 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:33:12,176 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-22 07:33:12,176 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 07:33:12,176 INFO L794 eck$LassoCheckResult]: Stem: 61#ULTIMATE.startENTRY [28] ULTIMATE.startENTRY-->L6-2: Formula: (and (= |v_ULTIMATE.start_test_fun_#in~z_1| |v_ULTIMATE.start_main_#t~nondet2_1|) (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= v_ULTIMATE.start_test_fun_~z_1 |v_ULTIMATE.start_test_fun_#in~z_1|) (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_test_fun_#in~z=|v_ULTIMATE.start_test_fun_#in~z_1|, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_1, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_test_fun_#in~z, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_~z, ULTIMATE.start_test_fun_#in~x, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_main_#t~ret3] 62#L6-2 [37] L6-2-->L7: Formula: (< v_ULTIMATE.start_test_fun_~x_4 v_ULTIMATE.start_test_fun_~y_4) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 63#L7 [29] L7-->L7-2: Formula: (and (= v_ULTIMATE.start_test_fun_~x_5 (+ v_ULTIMATE.start_test_fun_~x_6 1)) (< v_ULTIMATE.start_test_fun_~x_6 v_ULTIMATE.start_test_fun_~z_3)) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_3} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_5, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~x] 56#L7-2 [2020-06-22 07:33:12,176 INFO L796 eck$LassoCheckResult]: Loop: 56#L7-2 [27] L7-2-->L6-2: Formula: (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) InVars {ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4} OutVars{ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~c~0] 57#L6-2 [37] L6-2-->L7: Formula: (< v_ULTIMATE.start_test_fun_~x_4 v_ULTIMATE.start_test_fun_~y_4) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 65#L7 [39] L7-->L7-2: Formula: (and (>= v_ULTIMATE.start_test_fun_~x_7 v_ULTIMATE.start_test_fun_~z_5) (= v_ULTIMATE.start_test_fun_~z_4 (+ v_ULTIMATE.start_test_fun_~z_5 1))) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_5} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_4} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~z] 56#L7-2 [2020-06-22 07:33:12,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:33:12,177 INFO L82 PathProgramCache]: Analyzing trace with hash 57875, now seen corresponding path program 1 times [2020-06-22 07:33:12,177 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:33:12,177 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:33:12,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:12,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:33:12,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:12,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:12,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:33:12,188 INFO L82 PathProgramCache]: Analyzing trace with hash 56924, now seen corresponding path program 2 times [2020-06-22 07:33:12,189 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:33:12,189 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:33:12,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:12,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:33:12,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:12,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:33:12,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1724181258, now seen corresponding path program 1 times [2020-06-22 07:33:12,197 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:33:12,197 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:33:12,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:12,198 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 07:33:12,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:12,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:12,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:12,237 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:33:12,237 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:33:12,238 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:33:12,238 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:33:12,238 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:33:12,238 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:33:12,238 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:33:12,238 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:33:12,238 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 07:33:12,238 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:33:12,238 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:33:12,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:33:12,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:33:12,313 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:33:12,314 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:33:12,319 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:33:12,319 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:33:12,354 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:33:12,354 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:33:12,371 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:33:12,371 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_fun_~c~0=0} Honda state: {ULTIMATE.start_test_fun_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_test_fun_~c~0=-4}, {ULTIMATE.start_test_fun_~c~0=7}, {ULTIMATE.start_test_fun_~c~0=-2}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:33:12,399 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:33:12,399 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:33:12,429 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:33:12,430 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:33:12,721 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 07:33:12,724 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:33:12,724 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:33:12,724 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:33:12,724 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:33:12,724 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 07:33:12,725 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 07:33:12,725 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:33:12,725 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:33:12,725 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 07:33:12,725 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:33:12,725 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:33:12,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:33:12,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:33:12,774 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:33:12,775 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 07:33:12,775 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 07:33:12,776 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:33:12,776 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:33:12,776 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:33:12,776 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:33:12,777 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:33:12,777 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:33:12,777 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:33:12,782 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:33:12,783 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 07:33:12,784 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:33:12,784 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:33:12,784 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:33:12,784 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:33:12,785 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:33:12,785 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:33:12,786 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:33:12,791 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 07:33:12,796 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 07:33:12,797 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 07:33:12,797 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 07:33:12,797 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 07:33:12,797 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 07:33:12,798 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~z, ULTIMATE.start_test_fun_~x) = -2*ULTIMATE.start_test_fun_~z + 2*ULTIMATE.start_test_fun_~x + 1 Supporting invariants [] [2020-06-22 07:33:12,798 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 07:33:12,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:33:12,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:33:12,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 07:33:12,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:33:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:33:12,843 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 07:33:12,843 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:33:12,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 07:33:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:33:12,850 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 07:33:12,851 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:33:12,872 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 07:33:12,873 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 07:33:12,873 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-06-22 07:33:12,886 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 13 states and 17 transitions. Complement of second has 4 states. [2020-06-22 07:33:12,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 07:33:12,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 07:33:12,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-06-22 07:33:12,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 3 letters. [2020-06-22 07:33:12,889 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:33:12,889 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 3 letters. [2020-06-22 07:33:12,889 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:33:12,889 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 6 letters. [2020-06-22 07:33:12,890 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:33:12,891 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 17 transitions. [2020-06-22 07:33:12,892 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-06-22 07:33:12,892 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 17 transitions. [2020-06-22 07:33:12,892 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 07:33:12,892 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-06-22 07:33:12,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2020-06-22 07:33:12,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 07:33:12,893 INFO L706 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-06-22 07:33:12,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2020-06-22 07:33:12,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 8. [2020-06-22 07:33:12,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-06-22 07:33:12,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2020-06-22 07:33:12,895 INFO L729 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-06-22 07:33:12,895 INFO L609 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-06-22 07:33:12,895 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 07:33:12,895 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2020-06-22 07:33:12,895 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-06-22 07:33:12,895 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:33:12,896 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:33:12,896 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 07:33:12,896 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 07:33:12,897 INFO L794 eck$LassoCheckResult]: Stem: 127#ULTIMATE.startENTRY [28] ULTIMATE.startENTRY-->L6-2: Formula: (and (= |v_ULTIMATE.start_test_fun_#in~z_1| |v_ULTIMATE.start_main_#t~nondet2_1|) (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= v_ULTIMATE.start_test_fun_~z_1 |v_ULTIMATE.start_test_fun_#in~z_1|) (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_test_fun_#in~z=|v_ULTIMATE.start_test_fun_#in~z_1|, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_1, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_test_fun_#in~z, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_~z, ULTIMATE.start_test_fun_#in~x, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_main_#t~ret3] 128#L6-2 [37] L6-2-->L7: Formula: (< v_ULTIMATE.start_test_fun_~x_4 v_ULTIMATE.start_test_fun_~y_4) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 129#L7 [2020-06-22 07:33:12,897 INFO L796 eck$LassoCheckResult]: Loop: 129#L7 [29] L7-->L7-2: Formula: (and (= v_ULTIMATE.start_test_fun_~x_5 (+ v_ULTIMATE.start_test_fun_~x_6 1)) (< v_ULTIMATE.start_test_fun_~x_6 v_ULTIMATE.start_test_fun_~z_3)) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_3} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_5, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~x] 123#L7-2 [27] L7-2-->L6-2: Formula: (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) InVars {ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4} OutVars{ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~c~0] 125#L6-2 [37] L6-2-->L7: Formula: (< v_ULTIMATE.start_test_fun_~x_4 v_ULTIMATE.start_test_fun_~y_4) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 129#L7 [2020-06-22 07:33:12,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:33:12,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1866, now seen corresponding path program 1 times [2020-06-22 07:33:12,897 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:33:12,898 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:33:12,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:12,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:33:12,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:12,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:12,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:33:12,906 INFO L82 PathProgramCache]: Analyzing trace with hash 58534, now seen corresponding path program 1 times [2020-06-22 07:33:12,906 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:33:12,906 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:33:12,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:12,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:33:12,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:12,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:12,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:33:12,914 INFO L82 PathProgramCache]: Analyzing trace with hash 55618749, now seen corresponding path program 1 times [2020-06-22 07:33:12,914 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:33:12,914 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:33:12,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:12,915 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:33:12,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:12,948 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:33:12,948 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:33:12,948 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:33:12,949 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:33:12,949 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:33:12,949 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:33:12,949 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:33:12,949 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:33:12,949 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 07:33:12,949 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:33:12,949 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:33:12,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:33:12,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:33:13,005 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:33:13,005 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:33:13,010 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:33:13,010 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:33:13,042 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:33:13,042 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:33:13,059 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:33:13,059 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_fun_~c~0=0} Honda state: {ULTIMATE.start_test_fun_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_test_fun_~c~0=-4}, {ULTIMATE.start_test_fun_~c~0=7}, {ULTIMATE.start_test_fun_~c~0=-2}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:33:13,088 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:33:13,088 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:33:13,121 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:33:13,121 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:33:13,506 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 07:33:13,508 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:33:13,658 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:33:13,658 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:33:13,658 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:33:13,659 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 07:33:13,659 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 07:33:13,659 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:33:13,659 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:33:13,659 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 07:33:13,659 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:33:13,659 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:33:13,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:33:13,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:33:13,702 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:33:13,703 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 07:33:13,703 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 07:33:13,704 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:33:13,704 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:33:13,704 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:33:13,704 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:33:13,704 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:33:13,706 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:33:13,706 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:33:13,709 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:33:13,709 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 07:33:13,710 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:33:13,710 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:33:13,710 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:33:13,710 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:33:13,710 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:33:13,711 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:33:13,711 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:33:13,715 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 07:33:13,723 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 07:33:13,723 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 07:33:13,724 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 07:33:13,724 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 07:33:13,725 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 07:33:13,725 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~x, ULTIMATE.start_test_fun_~z) = -1*ULTIMATE.start_test_fun_~x + 1*ULTIMATE.start_test_fun_~z Supporting invariants [] [2020-06-22 07:33:13,725 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 07:33:13,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:33:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:33:13,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 07:33:13,749 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:33:13,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:33:13,759 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 07:33:13,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:33:13,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 07:33:13,788 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 07:33:13,789 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 07:33:13,789 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 11 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-06-22 07:33:13,802 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 11 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 16 states and 19 transitions. Complement of second has 6 states. [2020-06-22 07:33:13,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 07:33:13,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 07:33:13,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2020-06-22 07:33:13,804 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 3 letters. [2020-06-22 07:33:13,804 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:33:13,804 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 3 letters. [2020-06-22 07:33:13,805 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:33:13,805 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 6 letters. [2020-06-22 07:33:13,805 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:33:13,806 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2020-06-22 07:33:13,808 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2020-06-22 07:33:13,808 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 15 transitions. [2020-06-22 07:33:13,809 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 07:33:13,809 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 07:33:13,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2020-06-22 07:33:13,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 07:33:13,809 INFO L706 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-06-22 07:33:13,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2020-06-22 07:33:13,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2020-06-22 07:33:13,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-06-22 07:33:13,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2020-06-22 07:33:13,811 INFO L729 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-06-22 07:33:13,811 INFO L609 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-06-22 07:33:13,811 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 07:33:13,811 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2020-06-22 07:33:13,812 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-06-22 07:33:13,812 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:33:13,812 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:33:13,812 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 07:33:13,812 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1] [2020-06-22 07:33:13,813 INFO L794 eck$LassoCheckResult]: Stem: 189#ULTIMATE.startENTRY [28] ULTIMATE.startENTRY-->L6-2: Formula: (and (= |v_ULTIMATE.start_test_fun_#in~z_1| |v_ULTIMATE.start_main_#t~nondet2_1|) (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= v_ULTIMATE.start_test_fun_~z_1 |v_ULTIMATE.start_test_fun_#in~z_1|) (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_test_fun_#in~z=|v_ULTIMATE.start_test_fun_#in~z_1|, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_1, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_test_fun_#in~z, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_~z, ULTIMATE.start_test_fun_#in~x, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_main_#t~ret3] 190#L6-2 [37] L6-2-->L7: Formula: (< v_ULTIMATE.start_test_fun_~x_4 v_ULTIMATE.start_test_fun_~y_4) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 191#L7 [2020-06-22 07:33:13,813 INFO L796 eck$LassoCheckResult]: Loop: 191#L7 [29] L7-->L7-2: Formula: (and (= v_ULTIMATE.start_test_fun_~x_5 (+ v_ULTIMATE.start_test_fun_~x_6 1)) (< v_ULTIMATE.start_test_fun_~x_6 v_ULTIMATE.start_test_fun_~z_3)) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_3} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_5, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~x] 186#L7-2 [27] L7-2-->L6-2: Formula: (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) InVars {ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4} OutVars{ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~c~0] 188#L6-2 [37] L6-2-->L7: Formula: (< v_ULTIMATE.start_test_fun_~x_4 v_ULTIMATE.start_test_fun_~y_4) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 192#L7 [39] L7-->L7-2: Formula: (and (>= v_ULTIMATE.start_test_fun_~x_7 v_ULTIMATE.start_test_fun_~z_5) (= v_ULTIMATE.start_test_fun_~z_4 (+ v_ULTIMATE.start_test_fun_~z_5 1))) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_5} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_4} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~z] 193#L7-2 [27] L7-2-->L6-2: Formula: (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) InVars {ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4} OutVars{ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~c~0] 194#L6-2 [37] L6-2-->L7: Formula: (< v_ULTIMATE.start_test_fun_~x_4 v_ULTIMATE.start_test_fun_~y_4) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 191#L7 [2020-06-22 07:33:13,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:33:13,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1866, now seen corresponding path program 2 times [2020-06-22 07:33:13,814 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:33:13,814 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:33:13,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:13,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:33:13,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:13,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:13,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:33:13,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1743824747, now seen corresponding path program 1 times [2020-06-22 07:33:13,821 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:33:13,822 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:33:13,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:13,822 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 07:33:13,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:13,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:33:13,829 INFO L82 PathProgramCache]: Analyzing trace with hash -919186444, now seen corresponding path program 2 times [2020-06-22 07:33:13,830 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:33:13,830 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:33:13,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:13,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:33:13,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:33:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:33:13,875 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:33:13,876 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:33:13,876 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:33:13,876 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:33:13,876 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:33:13,876 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:33:13,877 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:33:13,877 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:33:13,877 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 07:33:13,877 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:33:13,877 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:33:13,878 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 07:33:13,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:33:13,943 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:33:13,943 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:33:13,946 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:33:13,946 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:33:13,976 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:33:13,976 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:33:14,537 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 07:33:14,540 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:33:14,540 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:33:14,540 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:33:14,540 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:33:14,541 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 07:33:14,541 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 07:33:14,541 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:33:14,541 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:33:14,541 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 07:33:14,541 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:33:14,541 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:33:14,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:33:14,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:33:14,601 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:33:14,602 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 07:33:14,602 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 07:33:14,603 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:33:14,603 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:33:14,603 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:33:14,603 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:33:14,603 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:33:14,604 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:33:14,604 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:33:14,610 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 07:33:14,614 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 07:33:14,615 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 07:33:14,615 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 07:33:14,615 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 07:33:14,615 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 07:33:14,615 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~x, ULTIMATE.start_test_fun_~y) = -1*ULTIMATE.start_test_fun_~x + 1*ULTIMATE.start_test_fun_~y Supporting invariants [] [2020-06-22 07:33:14,616 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 07:33:14,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:33:14,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:33:14,634 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 07:33:14,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:33:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:33:14,656 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 07:33:14,659 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:33:14,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 07:33:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:33:14,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 07:33:14,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:33:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:33:14,717 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 07:33:14,717 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:33:14,720 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 07:33:14,720 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 07:33:14,720 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 10 states and 13 transitions. cyclomatic complexity: 4 Second operand 4 states. [2020-06-22 07:33:14,759 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 10 states and 13 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 25 states and 31 transitions. Complement of second has 9 states. [2020-06-22 07:33:14,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2020-06-22 07:33:14,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 07:33:14,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2020-06-22 07:33:14,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 2 letters. Loop has 6 letters. [2020-06-22 07:33:14,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:33:14,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 8 letters. Loop has 6 letters. [2020-06-22 07:33:14,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:33:14,762 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 2 letters. Loop has 12 letters. [2020-06-22 07:33:14,763 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:33:14,764 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 31 transitions. [2020-06-22 07:33:14,765 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 07:33:14,766 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 0 states and 0 transitions. [2020-06-22 07:33:14,766 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 07:33:14,766 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 07:33:14,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 07:33:14,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 07:33:14,766 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 07:33:14,766 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 07:33:14,766 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 07:33:14,766 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 07:33:14,767 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 07:33:14,767 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 07:33:14,767 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 07:33:14,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:33:14 BasicIcfg [2020-06-22 07:33:14,773 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 07:33:14,773 INFO L168 Benchmark]: Toolchain (without parser) took 4408.55 ms. Allocated memory was 649.6 MB in the beginning and 765.5 MB in the end (delta: 115.9 MB). Free memory was 564.1 MB in the beginning and 706.0 MB in the end (delta: -141.9 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 07:33:14,775 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 07:33:14,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.40 ms. Allocated memory was 649.6 MB in the beginning and 702.5 MB in the end (delta: 53.0 MB). Free memory was 563.0 MB in the beginning and 668.5 MB in the end (delta: -105.5 MB). Peak memory consumption was 28.8 MB. Max. memory is 50.3 GB. [2020-06-22 07:33:14,776 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.61 ms. Allocated memory is still 702.5 MB. Free memory was 668.5 MB in the beginning and 665.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. [2020-06-22 07:33:14,777 INFO L168 Benchmark]: Boogie Preprocessor took 18.56 ms. Allocated memory is still 702.5 MB. Free memory was 665.6 MB in the beginning and 664.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 07:33:14,777 INFO L168 Benchmark]: RCFGBuilder took 203.74 ms. Allocated memory is still 702.5 MB. Free memory was 664.6 MB in the beginning and 650.8 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 50.3 GB. [2020-06-22 07:33:14,778 INFO L168 Benchmark]: BlockEncodingV2 took 69.32 ms. Allocated memory is still 702.5 MB. Free memory was 650.8 MB in the beginning and 645.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 07:33:14,778 INFO L168 Benchmark]: TraceAbstraction took 150.74 ms. Allocated memory is still 702.5 MB. Free memory was 645.4 MB in the beginning and 635.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 50.3 GB. [2020-06-22 07:33:14,779 INFO L168 Benchmark]: BuchiAutomizer took 3650.19 ms. Allocated memory was 702.5 MB in the beginning and 765.5 MB in the end (delta: 62.9 MB). Free memory was 635.7 MB in the beginning and 706.0 MB in the end (delta: -70.3 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 07:33:14,783 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 11 edges - StatisticsResult: Encoded RCFG 4 locations, 5 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 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 276.40 ms. Allocated memory was 649.6 MB in the beginning and 702.5 MB in the end (delta: 53.0 MB). Free memory was 563.0 MB in the beginning and 668.5 MB in the end (delta: -105.5 MB). Peak memory consumption was 28.8 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.61 ms. Allocated memory is still 702.5 MB. Free memory was 668.5 MB in the beginning and 665.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.56 ms. Allocated memory is still 702.5 MB. Free memory was 665.6 MB in the beginning and 664.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 203.74 ms. Allocated memory is still 702.5 MB. Free memory was 664.6 MB in the beginning and 650.8 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 69.32 ms. Allocated memory is still 702.5 MB. Free memory was 650.8 MB in the beginning and 645.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 150.74 ms. Allocated memory is still 702.5 MB. Free memory was 645.4 MB in the beginning and 635.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 3650.19 ms. Allocated memory was 702.5 MB in the beginning and 765.5 MB in the end (delta: 62.9 MB). Free memory was 635.7 MB in the beginning and 706.0 MB in the end (delta: -70.3 MB). There was no memory consumed. 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: 6]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 0 deterministic, 4 nondeterministic). One nondeterministic module has affine ranking function -2 * z + 2 * x + 1 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * z + 2 * x + 1 and consists of 3 locations. One nondeterministic module has affine ranking function -1 * x + z and consists of 3 locations. One nondeterministic module has affine ranking function -1 * x + y and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 10 states and ocurred in iteration 1. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 3/3 HoareTripleCheckerStatistics: 20 SDtfs, 34 SDslu, 8 SDs, 0 SdLazy, 33 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp74 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq148 hnf94 smp95 dnf100 smp100 tf110 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 07:33:07.112 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 07:33:15.019 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check