YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 09:54:38,331 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 09:54:38,333 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 09:54:38,344 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 09:54:38,345 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 09:54:38,346 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 09:54:38,347 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 09:54:38,348 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 09:54:38,350 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 09:54:38,351 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 09:54:38,351 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 09:54:38,352 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 09:54:38,352 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 09:54:38,353 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 09:54:38,354 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 09:54:38,355 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 09:54:38,356 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 09:54:38,358 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 09:54:38,359 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 09:54:38,361 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 09:54:38,362 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 09:54:38,363 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 09:54:38,365 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 09:54:38,365 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 09:54:38,365 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 09:54:38,366 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 09:54:38,366 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 09:54:38,367 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 09:54:38,367 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 09:54:38,368 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 09:54:38,369 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 09:54:38,369 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 09:54:38,370 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 09:54:38,370 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 09:54:38,371 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 09:54:38,371 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 09:54:38,371 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 09:54:38,372 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 09:54:38,373 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 09:54:38,373 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 09:54:38,387 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 09:54:38,387 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 09:54:38,388 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 09:54:38,389 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 09:54:38,389 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 09:54:38,389 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 09:54:38,389 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 09:54:38,389 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 09:54:38,389 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 09:54:38,390 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 09:54:38,390 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 09:54:38,390 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 09:54:38,390 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 09:54:38,390 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 09:54:38,391 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:38,391 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 09:54:38,391 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 09:54:38,391 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 09:54:38,391 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 09:54:38,391 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 09:54:38,392 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 09:54:38,392 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 09:54:38,392 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 09:54:38,392 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 09:54:38,392 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 09:54:38,393 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 09:54:38,393 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 09:54:38,393 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 09:54:38,393 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 09:54:38,418 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 09:54:38,431 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 09:54:38,434 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 09:54:38,436 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 09:54:38,436 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 09:54:38,437 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 09:54:38,538 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/3829f831589f4fd7b12a8565be1cf1d5/FLAG112816c02 [2020-06-22 09:54:38,868 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 09:54:38,868 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 09:54:38,875 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/3829f831589f4fd7b12a8565be1cf1d5/FLAG112816c02 [2020-06-22 09:54:39,277 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/3829f831589f4fd7b12a8565be1cf1d5 [2020-06-22 09:54:39,288 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 09:54:39,290 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 09:54:39,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 09:54:39,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 09:54:39,295 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 09:54:39,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 09:54:39" (1/1) ... [2020-06-22 09:54:39,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ebbd14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:54:39, skipping insertion in model container [2020-06-22 09:54:39,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 09:54:39" (1/1) ... [2020-06-22 09:54:39,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 09:54:39,324 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 09:54:39,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 09:54:39,484 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 09:54:39,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 09:54:39,574 INFO L195 MainTranslator]: Completed translation [2020-06-22 09:54:39,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:54:39 WrapperNode [2020-06-22 09:54:39,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 09:54:39,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 09:54:39,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 09:54:39,576 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 09:54:39,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:54:39" (1/1) ... [2020-06-22 09:54:39,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:54:39" (1/1) ... [2020-06-22 09:54:39,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 09:54:39,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 09:54:39,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 09:54:39,613 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 09:54:39,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:54:39" (1/1) ... [2020-06-22 09:54:39,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:54:39" (1/1) ... [2020-06-22 09:54:39,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:54:39" (1/1) ... [2020-06-22 09:54:39,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:54:39" (1/1) ... [2020-06-22 09:54:39,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:54:39" (1/1) ... [2020-06-22 09:54:39,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:54:39" (1/1) ... [2020-06-22 09:54:39,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:54:39" (1/1) ... [2020-06-22 09:54:39,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 09:54:39,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 09:54:39,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 09:54:39,634 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 09:54:39,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:54:39" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 09:54:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 09:54:39,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 09:54:39,855 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 09:54:39,855 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 09:54:39,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:54:39 BoogieIcfgContainer [2020-06-22 09:54:39,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 09:54:39,857 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 09:54:39,857 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 09:54:39,860 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 09:54:39,860 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:54:39" (1/1) ... [2020-06-22 09:54:39,876 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-06-22 09:54:39,878 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 09:54:39,878 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 09:54:39,879 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 09:54:39,879 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 09:54:39,881 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 09:54:39,882 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 09:54:39,882 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 09:54:39,898 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 09:54:39,915 INFO L200 BlockEncoder]: SBE split 3 edges [2020-06-22 09:54:39,920 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 09:54:39,922 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 09:54:39,932 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 09:54:39,934 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2020-06-22 09:54:39,936 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 09:54:39,936 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 09:54:39,936 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 09:54:39,936 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 09:54:39,937 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 8 edges [2020-06-22 09:54:39,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:54:39 BasicIcfg [2020-06-22 09:54:39,937 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 09:54:39,938 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 09:54:39,938 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 09:54:39,941 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 09:54:39,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 09:54:39" (1/4) ... [2020-06-22 09:54:39,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@297aa68a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 09:54:39, skipping insertion in model container [2020-06-22 09:54:39,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:54:39" (2/4) ... [2020-06-22 09:54:39,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@297aa68a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 09:54:39, skipping insertion in model container [2020-06-22 09:54:39,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:54:39" (3/4) ... [2020-06-22 09:54:39,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@297aa68a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:54:39, skipping insertion in model container [2020-06-22 09:54:39,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:54:39" (4/4) ... [2020-06-22 09:54:39,945 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 09:54:39,956 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 09:54:39,964 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 09:54:39,982 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 09:54:40,010 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 09:54:40,011 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 09:54:40,011 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 09:54:40,011 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 09:54:40,012 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 09:54:40,012 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 09:54:40,012 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 09:54:40,012 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 09:54:40,012 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 09:54:40,026 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-06-22 09:54:40,032 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 09:54:40,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-06-22 09:54:40,087 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 09:54:40,087 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 29) no Hoare annotation was computed. [2020-06-22 09:54:40,088 INFO L451 ceAbstractionStarter]: At program point L23-2(lines 20 30) the Hoare annotation is: true [2020-06-22 09:54:40,088 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 29) no Hoare annotation was computed. [2020-06-22 09:54:40,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:54:40 BasicIcfg [2020-06-22 09:54:40,096 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 09:54:40,097 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 09:54:40,097 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 09:54:40,101 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 09:54:40,102 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:54:40,102 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 09:54:39" (1/5) ... [2020-06-22 09:54:40,102 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e0259bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 09:54:40, skipping insertion in model container [2020-06-22 09:54:40,103 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:54:40,103 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:54:39" (2/5) ... [2020-06-22 09:54:40,103 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e0259bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 09:54:40, skipping insertion in model container [2020-06-22 09:54:40,103 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:54:40,103 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:54:39" (3/5) ... [2020-06-22 09:54:40,104 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e0259bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:54:40, skipping insertion in model container [2020-06-22 09:54:40,104 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:54:40,104 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:54:39" (4/5) ... [2020-06-22 09:54:40,104 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e0259bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:54:40, skipping insertion in model container [2020-06-22 09:54:40,105 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:54:40,105 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:54:40" (5/5) ... [2020-06-22 09:54:40,106 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 09:54:40,134 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 09:54:40,134 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 09:54:40,134 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 09:54:40,135 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 09:54:40,135 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 09:54:40,135 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 09:54:40,135 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 09:54:40,135 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 09:54:40,135 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 09:54:40,138 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 09:54:40,156 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 09:54:40,156 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:54:40,156 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:54:40,163 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 09:54:40,163 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 09:54:40,163 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 09:54:40,163 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 09:54:40,164 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 09:54:40,164 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:54:40,164 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:54:40,164 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 09:54:40,164 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 09:54:40,169 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue [35] ULTIMATE.startENTRY-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 3#L23-2true [2020-06-22 09:54:40,170 INFO L796 eck$LassoCheckResult]: Loop: 3#L23-2true [32] L23-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~z~0_10) (< 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 4#L21true [46] L21-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (< 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 3#L23-2true [2020-06-22 09:54:40,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:54:40,176 INFO L82 PathProgramCache]: Analyzing trace with hash 66, now seen corresponding path program 1 times [2020-06-22 09:54:40,178 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:54:40,179 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:54:40,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:40,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:54:40,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:40,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:54:40,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1999, now seen corresponding path program 1 times [2020-06-22 09:54:40,248 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:54:40,248 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:54:40,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:40,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:54:40,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:40,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:54:40,262 INFO L82 PathProgramCache]: Analyzing trace with hash 64464, now seen corresponding path program 1 times [2020-06-22 09:54:40,262 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:54:40,262 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:54:40,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:40,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:54:40,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:40,331 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:54:40,332 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:54:40,333 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:54:40,333 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:54:40,333 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 09:54:40,333 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:40,333 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:54:40,333 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:54:40,334 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 09:54:40,334 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:54:40,334 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:54:40,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:40,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:40,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:40,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:40,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:40,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:40,477 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:54:40,478 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:40,489 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:54:40,489 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:54:40,522 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:54:40,522 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:40,530 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:54:40,530 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:54:40,557 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:54:40,558 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:40,566 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:54:40,566 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:40,598 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:54:40,598 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:54:40,628 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 09:54:40,631 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:54:40,631 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:54:40,631 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:54:40,631 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:54:40,631 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 09:54:40,631 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 09:54:40,631 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:54:40,631 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:54:40,632 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 09:54:40,632 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:54:40,632 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:54:40,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:40,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:40,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:40,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:40,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:40,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:40,708 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:54:40,714 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 09:54:40,716 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 09:54:40,717 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:54:40,718 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:54:40,718 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:54:40,718 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:54:40,724 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:54:40,724 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:54:40,732 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:54:40,733 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 09:54:40,733 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:54:40,734 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:54:40,734 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:54:40,734 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:54:40,737 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:54:40,737 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:54:40,745 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:54:40,745 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 09:54:40,746 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:54:40,746 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:54:40,747 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:54:40,747 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:54:40,747 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:54:40,748 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:54:40,748 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:54:40,753 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 09:54:40,757 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 09:54:40,757 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 09:54:40,759 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 09:54:40,759 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 09:54:40,759 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 09:54:40,760 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-06-22 09:54:40,761 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 09:54:40,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:54:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:54:40,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 09:54:40,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:54:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:54:40,810 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 09:54:40,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:54:40,825 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 09:54:40,852 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 09:54:40,857 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 09:54:40,858 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 3 states. [2020-06-22 09:54:40,905 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 3 states. Result 13 states and 24 transitions. Complement of second has 4 states. [2020-06-22 09:54:40,905 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 09:54:40,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 09:54:40,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2020-06-22 09:54:40,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 09:54:40,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:54:40,911 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 09:54:40,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:54:40,911 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 09:54:40,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:54:40,918 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 24 transitions. [2020-06-22 09:54:40,919 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-06-22 09:54:40,923 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 24 transitions. [2020-06-22 09:54:40,924 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-06-22 09:54:40,925 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-06-22 09:54:40,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 24 transitions. [2020-06-22 09:54:40,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 09:54:40,926 INFO L706 BuchiCegarLoop]: Abstraction has 13 states and 24 transitions. [2020-06-22 09:54:40,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 24 transitions. [2020-06-22 09:54:40,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2020-06-22 09:54:40,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-06-22 09:54:40,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 23 transitions. [2020-06-22 09:54:40,956 INFO L729 BuchiCegarLoop]: Abstraction has 12 states and 23 transitions. [2020-06-22 09:54:40,956 INFO L609 BuchiCegarLoop]: Abstraction has 12 states and 23 transitions. [2020-06-22 09:54:40,956 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 09:54:40,956 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 23 transitions. [2020-06-22 09:54:40,957 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-06-22 09:54:40,957 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:54:40,957 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:54:40,957 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 09:54:40,958 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 09:54:40,958 INFO L794 eck$LassoCheckResult]: Stem: 57#ULTIMATE.startENTRY [35] ULTIMATE.startENTRY-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 58#L23-2 [32] L23-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~z~0_10) (< 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 51#L21 [2020-06-22 09:54:40,958 INFO L796 eck$LassoCheckResult]: Loop: 51#L21 [34] L21-->L23: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 54#L23 [48] L23-->L23-2: Formula: (and (> 0 |v_ULTIMATE.start_main_#t~nondet4_3|) (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~y~0_7 (- 1))) (= v_ULTIMATE.start_main_~z~0_6 |v_ULTIMATE.start_main_#t~nondet5_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0] 50#L23-2 [32] L23-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~z~0_10) (< 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 51#L21 [2020-06-22 09:54:40,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:54:40,959 INFO L82 PathProgramCache]: Analyzing trace with hash 2078, now seen corresponding path program 1 times [2020-06-22 09:54:40,959 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:54:40,959 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:54:40,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:40,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:54:40,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:40,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:54:40,969 INFO L82 PathProgramCache]: Analyzing trace with hash 63985, now seen corresponding path program 1 times [2020-06-22 09:54:40,969 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:54:40,970 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:54:40,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:40,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:54:40,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:40,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:40,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:54:40,978 INFO L82 PathProgramCache]: Analyzing trace with hash 61939892, now seen corresponding path program 1 times [2020-06-22 09:54:40,978 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:54:40,978 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:54:40,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:40,980 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:54:40,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:40,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:41,024 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:54:41,024 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:54:41,025 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:54:41,025 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:54:41,025 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 09:54:41,025 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:41,025 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:54:41,025 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:54:41,025 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 09:54:41,025 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:54:41,025 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:54:41,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:41,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:41,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:41,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:41,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:41,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:41,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:41,119 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:54:41,120 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:41,125 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:54:41,125 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:54:41,153 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:54:41,153 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:41,160 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:54:41,161 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:54:41,165 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:54:41,165 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:41,197 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:54:41,197 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:54:41,225 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:54:41,226 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:41,234 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:54:41,234 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:41,268 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:54:41,268 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:54:41,339 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 09:54:41,342 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:54:41,342 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:54:41,342 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:54:41,342 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:54:41,342 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 09:54:41,342 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 09:54:41,342 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:54:41,343 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:54:41,343 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 09:54:41,343 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:54:41,343 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:54:41,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:41,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:41,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:41,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:41,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:41,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:41,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:41,466 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:54:41,466 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 09:54:41,467 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 09:54:41,468 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:54:41,468 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:54:41,469 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:54:41,469 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:54:41,471 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:54:41,471 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:54:41,475 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:54:41,476 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 09:54:41,476 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:54:41,476 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:54:41,477 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:54:41,477 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:54:41,477 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:54:41,478 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:54:41,478 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:54:41,479 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:54:41,480 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 09:54:41,480 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:54:41,481 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:54:41,481 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:54:41,481 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:54:41,483 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:54:41,483 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:54:41,489 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:54:41,489 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 09:54:41,490 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:54:41,490 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:54:41,490 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:54:41,490 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:54:41,490 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:54:41,491 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:54:41,491 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:54:41,496 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 09:54:41,500 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 09:54:41,500 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 09:54:41,501 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 09:54:41,501 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 09:54:41,501 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 09:54:41,501 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-06-22 09:54:41,502 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 09:54:41,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:54:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:54:41,529 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 09:54:41,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:54:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:54:41,540 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 09:54:41,540 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:54:41,564 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 09:54:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:54:41,574 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 09:54:41,575 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:54:41,619 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 09:54:41,620 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 09:54:41,620 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 12 states and 23 transitions. cyclomatic complexity: 14 Second operand 4 states. [2020-06-22 09:54:41,678 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 12 states and 23 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 30 states and 58 transitions. Complement of second has 8 states. [2020-06-22 09:54:41,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2020-06-22 09:54:41,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 09:54:41,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2020-06-22 09:54:41,680 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 2 letters. Loop has 3 letters. [2020-06-22 09:54:41,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:54:41,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 5 letters. Loop has 3 letters. [2020-06-22 09:54:41,681 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:54:41,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 2 letters. Loop has 6 letters. [2020-06-22 09:54:41,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:54:41,684 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 58 transitions. [2020-06-22 09:54:41,686 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 09:54:41,687 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 29 states and 55 transitions. [2020-06-22 09:54:41,687 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-06-22 09:54:41,688 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-06-22 09:54:41,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 55 transitions. [2020-06-22 09:54:41,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 09:54:41,688 INFO L706 BuchiCegarLoop]: Abstraction has 29 states and 55 transitions. [2020-06-22 09:54:41,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 55 transitions. [2020-06-22 09:54:41,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 22. [2020-06-22 09:54:41,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-06-22 09:54:41,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 45 transitions. [2020-06-22 09:54:41,691 INFO L729 BuchiCegarLoop]: Abstraction has 22 states and 45 transitions. [2020-06-22 09:54:41,691 INFO L609 BuchiCegarLoop]: Abstraction has 22 states and 45 transitions. [2020-06-22 09:54:41,692 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 09:54:41,692 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 45 transitions. [2020-06-22 09:54:41,693 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 09:54:41,693 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:54:41,693 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:54:41,694 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-22 09:54:41,694 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 09:54:41,694 INFO L794 eck$LassoCheckResult]: Stem: 150#ULTIMATE.startENTRY [35] ULTIMATE.startENTRY-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 147#L23-2 [32] L23-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~z~0_10) (< 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 148#L21 [34] L21-->L23: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 144#L23 [2020-06-22 09:54:41,695 INFO L796 eck$LassoCheckResult]: Loop: 144#L23 [37] L23-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_7 (+ v_ULTIMATE.start_main_~z~0_8 (- 1))) (= 0 |v_ULTIMATE.start_main_#t~nondet4_5|) (= v_ULTIMATE.start_main_~x~0_6 |v_ULTIMATE.start_main_#t~nondet6_3|)) InVars {ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_3|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|} OutVars{ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_2|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 151#L23-2 [32] L23-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~z~0_10) (< 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 154#L21 [34] L21-->L23: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 144#L23 [2020-06-22 09:54:41,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:54:41,695 INFO L82 PathProgramCache]: Analyzing trace with hash 64452, now seen corresponding path program 1 times [2020-06-22 09:54:41,695 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:54:41,695 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:54:41,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:41,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:54:41,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:41,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:41,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:41,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:54:41,705 INFO L82 PathProgramCache]: Analyzing trace with hash 66374, now seen corresponding path program 1 times [2020-06-22 09:54:41,705 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:54:41,705 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:54:41,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:41,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:54:41,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:41,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:41,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:54:41,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1920126115, now seen corresponding path program 1 times [2020-06-22 09:54:41,712 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:54:41,713 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:54:41,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:41,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:54:41,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:41,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:41,755 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:54:41,756 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:54:41,756 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:54:41,756 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:54:41,756 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 09:54:41,756 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:41,756 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:54:41,757 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:54:41,757 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 09:54:41,757 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:54:41,757 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:54:41,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:41,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:41,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:41,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:41,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:41,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:41,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:41,861 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:54:41,862 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:41,868 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:54:41,869 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:54:41,874 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:54:41,874 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:41,902 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:54:41,903 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:54:41,906 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:54:41,906 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:41,935 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:54:41,935 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:54:41,962 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:54:41,962 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:41,968 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:54:41,968 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:54:41,995 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:54:41,995 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:42,001 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:54:42,001 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:42,032 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:54:42,033 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:54:42,104 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 09:54:42,107 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:54:42,107 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:54:42,107 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:54:42,107 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:54:42,108 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 09:54:42,108 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 09:54:42,108 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:54:42,108 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:54:42,108 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 09:54:42,108 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:54:42,108 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:54:42,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,222 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:54:42,223 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 09:54:42,223 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 09:54:42,224 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:54:42,224 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:54:42,224 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:54:42,224 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:54:42,224 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:54:42,225 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:54:42,225 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:54:42,226 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:54:42,227 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 09:54:42,227 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:54:42,227 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:54:42,227 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:54:42,228 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:54:42,228 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:54:42,228 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:54:42,228 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:54:42,229 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:54:42,229 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 09:54:42,230 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:54:42,230 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:54:42,230 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:54:42,230 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:54:42,231 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:54:42,231 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:54:42,231 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:54:42,232 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:54:42,232 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 09:54:42,233 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:54:42,233 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:54:42,233 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:54:42,233 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:54:42,233 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:54:42,234 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:54:42,234 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:54:42,237 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 09:54:42,240 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 09:54:42,240 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 09:54:42,240 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 09:54:42,240 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 09:54:42,241 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 09:54:42,241 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2020-06-22 09:54:42,241 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 09:54:42,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:54:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:54:42,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 09:54:42,260 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:54:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:54:42,265 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 09:54:42,265 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:54:42,282 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 09:54:42,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:54:42,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 09:54:42,294 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:54:42,295 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 09:54:42,296 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 09:54:42,296 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 22 states and 45 transitions. cyclomatic complexity: 28 Second operand 4 states. [2020-06-22 09:54:42,371 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 22 states and 45 transitions. cyclomatic complexity: 28. Second operand 4 states. Result 51 states and 103 transitions. Complement of second has 14 states. [2020-06-22 09:54:42,372 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 09:54:42,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 09:54:42,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2020-06-22 09:54:42,372 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 3 letters. Loop has 3 letters. [2020-06-22 09:54:42,373 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:54:42,373 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 6 letters. Loop has 3 letters. [2020-06-22 09:54:42,373 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:54:42,373 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 3 letters. Loop has 6 letters. [2020-06-22 09:54:42,374 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:54:42,375 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 103 transitions. [2020-06-22 09:54:42,378 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-06-22 09:54:42,379 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 45 states and 95 transitions. [2020-06-22 09:54:42,380 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-06-22 09:54:42,380 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-06-22 09:54:42,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 95 transitions. [2020-06-22 09:54:42,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 09:54:42,380 INFO L706 BuchiCegarLoop]: Abstraction has 45 states and 95 transitions. [2020-06-22 09:54:42,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 95 transitions. [2020-06-22 09:54:42,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2020-06-22 09:54:42,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-06-22 09:54:42,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 81 transitions. [2020-06-22 09:54:42,385 INFO L729 BuchiCegarLoop]: Abstraction has 39 states and 81 transitions. [2020-06-22 09:54:42,385 INFO L609 BuchiCegarLoop]: Abstraction has 39 states and 81 transitions. [2020-06-22 09:54:42,385 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 09:54:42,385 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 81 transitions. [2020-06-22 09:54:42,387 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-06-22 09:54:42,387 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:54:42,387 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:54:42,387 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2020-06-22 09:54:42,387 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 09:54:42,388 INFO L794 eck$LassoCheckResult]: Stem: 286#ULTIMATE.startENTRY [35] ULTIMATE.startENTRY-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 287#L23-2 [32] L23-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~z~0_10) (< 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 305#L21 [34] L21-->L23: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 288#L23 [37] L23-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_7 (+ v_ULTIMATE.start_main_~z~0_8 (- 1))) (= 0 |v_ULTIMATE.start_main_#t~nondet4_5|) (= v_ULTIMATE.start_main_~x~0_6 |v_ULTIMATE.start_main_#t~nondet6_3|)) InVars {ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_3|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|} OutVars{ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_2|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 289#L23-2 [32] L23-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~z~0_10) (< 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 293#L21 [47] L21-->L23-2: Formula: (and (> 0 |v_ULTIMATE.start_main_#t~nondet3_3|) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1)))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 282#L23-2 [2020-06-22 09:54:42,388 INFO L796 eck$LassoCheckResult]: Loop: 282#L23-2 [32] L23-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~z~0_10) (< 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 283#L21 [46] L21-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (< 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 282#L23-2 [2020-06-22 09:54:42,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:54:42,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1920126128, now seen corresponding path program 1 times [2020-06-22 09:54:42,388 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:54:42,388 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:54:42,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:42,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:54:42,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:42,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:42,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:54:42,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1999, now seen corresponding path program 2 times [2020-06-22 09:54:42,400 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:54:42,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:54:42,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:42,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:54:42,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:42,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:54:42,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1594727234, now seen corresponding path program 1 times [2020-06-22 09:54:42,406 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:54:42,406 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:54:42,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:42,407 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 09:54:42,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:42,434 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:54:42,434 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:54:42,435 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:54:42,435 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:54:42,435 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 09:54:42,435 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:42,435 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:54:42,435 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:54:42,435 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 09:54:42,435 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:54:42,435 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:54:42,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,491 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:54:42,491 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:42,495 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:54:42,495 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:54:42,522 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:54:42,522 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=1} Honda state: {ULTIMATE.start_main_~z~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:42,527 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:54:42,527 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:54:42,553 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:54:42,553 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:42,558 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:54:42,559 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:54:42,585 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:54:42,585 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:42,590 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:54:42,590 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:42,622 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:54:42,622 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:54:42,651 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 09:54:42,653 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:54:42,653 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:54:42,653 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:54:42,654 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:54:42,654 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 09:54:42,654 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 09:54:42,654 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:54:42,654 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:54:42,654 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 09:54:42,654 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:54:42,654 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:54:42,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,716 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:54:42,716 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 09:54:42,716 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 09:54:42,717 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:54:42,717 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:54:42,717 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:54:42,717 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:54:42,718 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:54:42,718 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:54:42,718 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:54:42,719 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:54:42,720 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 09:54:42,720 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:54:42,720 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:54:42,721 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:54:42,721 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:54:42,721 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:54:42,721 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:54:42,721 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:54:42,722 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:54:42,722 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 09:54:42,723 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:54:42,723 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:54:42,723 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:54:42,723 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:54:42,725 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:54:42,725 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:54:42,729 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:54:42,729 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 09:54:42,730 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:54:42,730 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:54:42,730 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:54:42,730 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:54:42,730 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:54:42,731 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:54:42,731 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:54:42,733 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 09:54:42,735 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 09:54:42,735 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 09:54:42,736 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 09:54:42,736 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 09:54:42,736 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 09:54:42,736 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-06-22 09:54:42,737 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 09:54:42,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:54:42,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:54:42,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 09:54:42,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:54:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:54:42,766 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 09:54:42,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:54:42,777 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 09:54:42,794 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 09:54:42,795 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 09:54:42,795 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 39 states and 81 transitions. cyclomatic complexity: 49 Second operand 3 states. [2020-06-22 09:54:42,833 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 39 states and 81 transitions. cyclomatic complexity: 49. Second operand 3 states. Result 94 states and 177 transitions. Complement of second has 4 states. [2020-06-22 09:54:42,834 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 09:54:42,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 09:54:42,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2020-06-22 09:54:42,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 6 letters. Loop has 2 letters. [2020-06-22 09:54:42,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:54:42,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 8 letters. Loop has 2 letters. [2020-06-22 09:54:42,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:54:42,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 6 letters. Loop has 4 letters. [2020-06-22 09:54:42,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:54:42,837 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 94 states and 177 transitions. [2020-06-22 09:54:42,839 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-06-22 09:54:42,841 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 94 states to 77 states and 148 transitions. [2020-06-22 09:54:42,841 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-06-22 09:54:42,841 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-06-22 09:54:42,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 148 transitions. [2020-06-22 09:54:42,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 09:54:42,842 INFO L706 BuchiCegarLoop]: Abstraction has 77 states and 148 transitions. [2020-06-22 09:54:42,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 148 transitions. [2020-06-22 09:54:42,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 55. [2020-06-22 09:54:42,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-06-22 09:54:42,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 110 transitions. [2020-06-22 09:54:42,848 INFO L729 BuchiCegarLoop]: Abstraction has 55 states and 110 transitions. [2020-06-22 09:54:42,848 INFO L609 BuchiCegarLoop]: Abstraction has 55 states and 110 transitions. [2020-06-22 09:54:42,848 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 09:54:42,848 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states and 110 transitions. [2020-06-22 09:54:42,849 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-06-22 09:54:42,849 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:54:42,850 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:54:42,850 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2020-06-22 09:54:42,850 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 09:54:42,850 INFO L794 eck$LassoCheckResult]: Stem: 462#ULTIMATE.startENTRY [35] ULTIMATE.startENTRY-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 463#L23-2 [32] L23-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~z~0_10) (< 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 494#L21 [34] L21-->L23: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 464#L23 [37] L23-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_7 (+ v_ULTIMATE.start_main_~z~0_8 (- 1))) (= 0 |v_ULTIMATE.start_main_#t~nondet4_5|) (= v_ULTIMATE.start_main_~x~0_6 |v_ULTIMATE.start_main_#t~nondet6_3|)) InVars {ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_3|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|} OutVars{ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_2|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 465#L23-2 [32] L23-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~z~0_10) (< 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 469#L21 [46] L21-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (< 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 472#L23-2 [2020-06-22 09:54:42,851 INFO L796 eck$LassoCheckResult]: Loop: 472#L23-2 [32] L23-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~z~0_10) (< 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 474#L21 [46] L21-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (< 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 472#L23-2 [2020-06-22 09:54:42,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:54:42,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1920126127, now seen corresponding path program 1 times [2020-06-22 09:54:42,851 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:54:42,851 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:54:42,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:42,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:54:42,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:42,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:42,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:54:42,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1999, now seen corresponding path program 3 times [2020-06-22 09:54:42,862 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:54:42,862 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:54:42,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:42,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:54:42,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:42,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:42,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:54:42,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1594728195, now seen corresponding path program 2 times [2020-06-22 09:54:42,867 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:54:42,867 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:54:42,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:42,868 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 09:54:42,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:54:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:54:42,894 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:54:42,894 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:54:42,895 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:54:42,895 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:54:42,895 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 09:54:42,895 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:42,895 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:54:42,895 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:54:42,895 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-06-22 09:54:42,895 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:54:42,895 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:54:42,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:42,948 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:54:42,948 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:42,952 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:54:42,952 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:54:42,982 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:54:42,983 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:54:43,011 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 09:54:43,012 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:54:43,013 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:54:43,013 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:54:43,013 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:54:43,013 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 09:54:43,013 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 09:54:43,013 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:54:43,013 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:54:43,013 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-06-22 09:54:43,013 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:54:43,014 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:54:43,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:43,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:43,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:43,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:43,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:43,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:54:43,065 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:54:43,065 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 09:54:43,066 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 09:54:43,066 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:54:43,066 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:54:43,067 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:54:43,067 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:54:43,067 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:54:43,067 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:54:43,067 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:54:43,070 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 09:54:43,072 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 09:54:43,072 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 09:54:43,072 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 09:54:43,072 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 09:54:43,073 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 09:54:43,073 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-06-22 09:54:43,073 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 09:54:43,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:54:43,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:54:43,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 09:54:43,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:54:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:54:43,096 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 09:54:43,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:54:43,105 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 09:54:43,114 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 09:54:43,114 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 09:54:43,114 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 55 states and 110 transitions. cyclomatic complexity: 61 Second operand 3 states. [2020-06-22 09:54:43,145 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 55 states and 110 transitions. cyclomatic complexity: 61. Second operand 3 states. Result 138 states and 263 transitions. Complement of second has 4 states. [2020-06-22 09:54:43,146 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 09:54:43,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 09:54:43,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2020-06-22 09:54:43,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 6 letters. Loop has 2 letters. [2020-06-22 09:54:43,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:54:43,147 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 8 letters. Loop has 2 letters. [2020-06-22 09:54:43,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:54:43,147 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 6 letters. Loop has 4 letters. [2020-06-22 09:54:43,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:54:43,148 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 263 transitions. [2020-06-22 09:54:43,151 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 09:54:43,151 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 0 states and 0 transitions. [2020-06-22 09:54:43,152 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 09:54:43,152 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 09:54:43,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 09:54:43,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 09:54:43,152 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 09:54:43,152 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 09:54:43,152 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 09:54:43,152 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2020-06-22 09:54:43,152 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 09:54:43,153 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 09:54:43,153 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 09:54:43,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:54:43 BasicIcfg [2020-06-22 09:54:43,159 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 09:54:43,159 INFO L168 Benchmark]: Toolchain (without parser) took 3870.16 ms. Allocated memory was 649.6 MB in the beginning and 762.3 MB in the end (delta: 112.7 MB). Free memory was 558.8 MB in the beginning and 540.1 MB in the end (delta: 18.8 MB). Peak memory consumption was 131.5 MB. Max. memory is 50.3 GB. [2020-06-22 09:54:43,161 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 580.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 09:54:43,161 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.37 ms. Allocated memory was 649.6 MB in the beginning and 698.9 MB in the end (delta: 49.3 MB). Free memory was 558.8 MB in the beginning and 665.5 MB in the end (delta: -106.7 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. [2020-06-22 09:54:43,162 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.62 ms. Allocated memory is still 698.9 MB. Free memory was 665.5 MB in the beginning and 662.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. [2020-06-22 09:54:43,162 INFO L168 Benchmark]: Boogie Preprocessor took 20.59 ms. Allocated memory is still 698.9 MB. Free memory was 662.8 MB in the beginning and 659.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. [2020-06-22 09:54:43,163 INFO L168 Benchmark]: RCFGBuilder took 222.93 ms. Allocated memory is still 698.9 MB. Free memory was 659.7 MB in the beginning and 646.8 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. [2020-06-22 09:54:43,163 INFO L168 Benchmark]: BlockEncodingV2 took 80.41 ms. Allocated memory is still 698.9 MB. Free memory was 646.8 MB in the beginning and 641.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 09:54:43,164 INFO L168 Benchmark]: TraceAbstraction took 158.34 ms. Allocated memory is still 698.9 MB. Free memory was 641.4 MB in the beginning and 631.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. [2020-06-22 09:54:43,164 INFO L168 Benchmark]: BuchiAutomizer took 3061.78 ms. Allocated memory was 698.9 MB in the beginning and 762.3 MB in the end (delta: 63.4 MB). Free memory was 631.9 MB in the beginning and 540.1 MB in the end (delta: 91.8 MB). Peak memory consumption was 155.3 MB. Max. memory is 50.3 GB. [2020-06-22 09:54:43,169 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 4 locations, 8 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 580.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 284.37 ms. Allocated memory was 649.6 MB in the beginning and 698.9 MB in the end (delta: 49.3 MB). Free memory was 558.8 MB in the beginning and 665.5 MB in the end (delta: -106.7 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 36.62 ms. Allocated memory is still 698.9 MB. Free memory was 665.5 MB in the beginning and 662.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.59 ms. Allocated memory is still 698.9 MB. Free memory was 662.8 MB in the beginning and 659.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 222.93 ms. Allocated memory is still 698.9 MB. Free memory was 659.7 MB in the beginning and 646.8 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 80.41 ms. Allocated memory is still 698.9 MB. Free memory was 646.8 MB in the beginning and 641.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 158.34 ms. Allocated memory is still 698.9 MB. Free memory was 641.4 MB in the beginning and 631.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 3061.78 ms. Allocated memory was 698.9 MB in the beginning and 762.3 MB in the end (delta: 63.4 MB). Free memory was 631.9 MB in the beginning and 540.1 MB in the end (delta: 91.8 MB). Peak memory consumption was 155.3 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (0 trivial, 0 deterministic, 5 nondeterministic). One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function z and consists of 5 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 2.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 36 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 55 states and ocurred in iteration 4. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 29 SDtfs, 81 SDslu, 24 SDs, 0 SdLazy, 116 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax157 hnf100 lsp30 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 12 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 09:54:36.077 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 09:54:43.400 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check