YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 07:11:07,495 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 07:11:07,497 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 07:11:07,509 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 07:11:07,509 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 07:11:07,510 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 07:11:07,512 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 07:11:07,514 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 07:11:07,515 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 07:11:07,516 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 07:11:07,517 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 07:11:07,517 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 07:11:07,518 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 07:11:07,519 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 07:11:07,520 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 07:11:07,521 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 07:11:07,522 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 07:11:07,523 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 07:11:07,526 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 07:11:07,527 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 07:11:07,528 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 07:11:07,529 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 07:11:07,531 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 07:11:07,532 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 07:11:07,532 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 07:11:07,533 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 07:11:07,533 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 07:11:07,534 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 07:11:07,534 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 07:11:07,535 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 07:11:07,535 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 07:11:07,536 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 07:11:07,537 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 07:11:07,537 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 07:11:07,538 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 07:11:07,538 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 07:11:07,538 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 07:11:07,539 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 07:11:07,540 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 07:11:07,540 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 07:11:07,555 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 07:11:07,555 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 07:11:07,556 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 07:11:07,556 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 07:11:07,556 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 07:11:07,557 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 07:11:07,557 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 07:11:07,557 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 07:11:07,557 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 07:11:07,557 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 07:11:07,557 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 07:11:07,558 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 07:11:07,558 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 07:11:07,558 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 07:11:07,558 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:07,558 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 07:11:07,559 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 07:11:07,559 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 07:11:07,559 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 07:11:07,559 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 07:11:07,559 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 07:11:07,560 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 07:11:07,560 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 07:11:07,560 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 07:11:07,560 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 07:11:07,560 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 07:11:07,560 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 07:11:07,561 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 07:11:07,561 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 07:11:07,587 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 07:11:07,600 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 07:11:07,604 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 07:11:07,605 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 07:11:07,606 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 07:11:07,606 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 07:11:07,673 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/96748228cb5242dfb18dbd03df5be826/FLAG12ed3e7a4 [2020-06-22 07:11:08,008 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 07:11:08,009 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 07:11:08,015 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/96748228cb5242dfb18dbd03df5be826/FLAG12ed3e7a4 [2020-06-22 07:11:08,427 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/96748228cb5242dfb18dbd03df5be826 [2020-06-22 07:11:08,439 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 07:11:08,440 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 07:11:08,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 07:11:08,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 07:11:08,445 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 07:11:08,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 07:11:08" (1/1) ... [2020-06-22 07:11:08,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c48fe8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:08, skipping insertion in model container [2020-06-22 07:11:08,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 07:11:08" (1/1) ... [2020-06-22 07:11:08,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 07:11:08,475 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 07:11:08,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 07:11:08,635 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 07:11:08,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 07:11:08,719 INFO L195 MainTranslator]: Completed translation [2020-06-22 07:11:08,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:08 WrapperNode [2020-06-22 07:11:08,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 07:11:08,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 07:11:08,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 07:11:08,721 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 07:11:08,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:08" (1/1) ... [2020-06-22 07:11:08,736 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:08" (1/1) ... [2020-06-22 07:11:08,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 07:11:08,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 07:11:08,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 07:11:08,756 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 07:11:08,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:08" (1/1) ... [2020-06-22 07:11:08,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:08" (1/1) ... [2020-06-22 07:11:08,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:08" (1/1) ... [2020-06-22 07:11:08,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:08" (1/1) ... [2020-06-22 07:11:08,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:08" (1/1) ... [2020-06-22 07:11:08,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:08" (1/1) ... [2020-06-22 07:11:08,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:08" (1/1) ... [2020-06-22 07:11:08,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 07:11:08,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 07:11:08,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 07:11:08,776 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 07:11:08,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:08" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 07:11:08,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 07:11:08,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 07:11:08,981 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 07:11:08,982 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2020-06-22 07:11:08,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:11:08 BoogieIcfgContainer [2020-06-22 07:11:08,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 07:11:08,983 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 07:11:08,984 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 07:11:08,986 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 07:11:08,986 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:11:08" (1/1) ... [2020-06-22 07:11:09,000 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 13 edges [2020-06-22 07:11:09,002 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 07:11:09,003 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 07:11:09,003 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 07:11:09,004 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 07:11:09,006 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 07:11:09,006 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 07:11:09,007 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 07:11:09,022 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 07:11:09,036 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 07:11:09,040 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 07:11:09,042 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 07:11:09,058 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-06-22 07:11:09,060 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 07:11:09,062 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 07:11:09,062 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 07:11:09,062 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 07:11:09,062 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 07:11:09,063 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 8 edges [2020-06-22 07:11:09,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:11:09 BasicIcfg [2020-06-22 07:11:09,063 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 07:11:09,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 07:11:09,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 07:11:09,067 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 07:11:09,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 07:11:08" (1/4) ... [2020-06-22 07:11:09,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154a9519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 07:11:09, skipping insertion in model container [2020-06-22 07:11:09,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:08" (2/4) ... [2020-06-22 07:11:09,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154a9519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 07:11:09, skipping insertion in model container [2020-06-22 07:11:09,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:11:08" (3/4) ... [2020-06-22 07:11:09,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154a9519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:11:09, skipping insertion in model container [2020-06-22 07:11:09,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:11:09" (4/4) ... [2020-06-22 07:11:09,072 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 07:11:09,082 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 07:11:09,089 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 07:11:09,106 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 07:11:09,134 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 07:11:09,134 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 07:11:09,135 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 07:11:09,135 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 07:11:09,135 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 07:11:09,135 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 07:11:09,135 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 07:11:09,135 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 07:11:09,136 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 07:11:09,149 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-06-22 07:11:09,155 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 07:11:09,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-06-22 07:11:09,207 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 07:11:09,207 INFO L448 ceAbstractionStarter]: For program point L10(lines 10 14) no Hoare annotation was computed. [2020-06-22 07:11:09,207 INFO L448 ceAbstractionStarter]: For program point L10-2(lines 7 15) no Hoare annotation was computed. [2020-06-22 07:11:09,207 INFO L448 ceAbstractionStarter]: For program point L7(lines 7 15) no Hoare annotation was computed. [2020-06-22 07:11:09,207 INFO L451 ceAbstractionStarter]: At program point L6-2(lines 6 17) the Hoare annotation is: true [2020-06-22 07:11:09,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:11:09 BasicIcfg [2020-06-22 07:11:09,216 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 07:11:09,217 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 07:11:09,217 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 07:11:09,220 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 07:11:09,221 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:11:09,221 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 07:11:08" (1/5) ... [2020-06-22 07:11:09,221 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1213a9d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 07:11:09, skipping insertion in model container [2020-06-22 07:11:09,222 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:11:09,222 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:11:08" (2/5) ... [2020-06-22 07:11:09,222 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1213a9d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 07:11:09, skipping insertion in model container [2020-06-22 07:11:09,222 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:11:09,222 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:11:08" (3/5) ... [2020-06-22 07:11:09,223 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1213a9d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:11:09, skipping insertion in model container [2020-06-22 07:11:09,223 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:11:09,223 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:11:09" (4/5) ... [2020-06-22 07:11:09,223 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1213a9d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:11:09, skipping insertion in model container [2020-06-22 07:11:09,223 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:11:09,224 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:11:09" (5/5) ... [2020-06-22 07:11:09,225 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 07:11:09,251 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 07:11:09,251 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 07:11:09,251 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 07:11:09,251 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 07:11:09,251 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 07:11:09,252 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 07:11:09,252 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 07:11:09,252 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 07:11:09,252 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 07:11:09,255 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-06-22 07:11:09,274 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 07:11:09,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:11:09,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:11:09,281 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 07:11:09,281 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 07:11:09,281 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 07:11:09,281 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-06-22 07:11:09,282 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 07:11:09,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:11:09,282 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:11:09,283 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 07:11:09,283 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 07:11:09,288 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [34] ULTIMATE.startENTRY-->L6-2: Formula: (and (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_#in~x] 7#L6-2true [2020-06-22 07:11:09,288 INFO L796 eck$LassoCheckResult]: Loop: 7#L6-2true [44] L6-2-->L7: Formula: (< 0 (+ v_ULTIMATE.start_test_fun_~x_4 v_ULTIMATE.start_test_fun_~y_4)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 5#L7true [36] L7-->L10-2: Formula: (and (< v_ULTIMATE.start_test_fun_~y_5 v_ULTIMATE.start_test_fun_~x_6) (= v_ULTIMATE.start_test_fun_~x_5 (+ v_ULTIMATE.start_test_fun_~x_6 (- 1)))) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_5, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_5, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_5} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~x] 6#L10-2true [39] L10-2-->L6-2: Formula: (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) InVars {ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4} OutVars{ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~c~0] 7#L6-2true [2020-06-22 07:11:09,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:09,295 INFO L82 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2020-06-22 07:11:09,297 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:11:09,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:11:09,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:09,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:11:09,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:09,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:09,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:09,366 INFO L82 PathProgramCache]: Analyzing trace with hash 73230, now seen corresponding path program 1 times [2020-06-22 07:11:09,366 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:11:09,366 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:11:09,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:09,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:11:09,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:09,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:09,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1979854, now seen corresponding path program 1 times [2020-06-22 07:11:09,384 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:11:09,384 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:11:09,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:09,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:11:09,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:09,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:09,453 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:11:09,454 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:11:09,455 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:11:09,455 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:11:09,455 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:11:09,455 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:09,455 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:11:09,455 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:11:09,456 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 07:11:09,456 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:11:09,456 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:11:09,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:11:09,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:11:09,546 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:11:09,546 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:09,554 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:11:09,554 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:09,588 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:11:09,588 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:11:09,610 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:11:09,611 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_fun_~c~0=0} Honda state: {ULTIMATE.start_test_fun_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_test_fun_~c~0=-4}, {ULTIMATE.start_test_fun_~c~0=7}, {ULTIMATE.start_test_fun_~c~0=-2}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:09,641 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:11:09,641 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:09,673 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:11:09,675 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:11:09,804 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 07:11:09,807 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:11:09,807 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:11:09,807 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:11:09,807 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:11:09,808 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 07:11:09,808 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 07:11:09,808 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:11:09,808 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:11:09,808 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 07:11:09,808 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:11:09,808 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:11:09,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:11:09,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:11:09,868 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:11:09,874 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 07:11:09,875 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 07:11:09,877 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:11:09,877 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:11:09,878 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:11:09,878 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:11:09,878 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:11:09,880 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:11:09,880 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:11:09,892 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:11:09,893 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 07:11:09,895 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:11:09,895 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:11:09,896 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:11:09,896 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:11:09,896 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:11:09,900 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:11:09,900 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:11:09,907 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 07:11:09,916 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 07:11:09,916 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2020-06-22 07:11:09,918 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 07:11:09,918 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 07:11:09,919 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 07:11:09,919 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~x) = 1*ULTIMATE.start_test_fun_~x Supporting invariants [] [2020-06-22 07:11:09,921 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 07:11:09,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:09,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:11:09,964 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 07:11:09,966 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:11:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:11:09,976 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 07:11:09,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:11:10,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 07:11:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:11:10,071 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 07:11:10,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:11:10,077 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-06-22 07:11:10,082 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 4 loop predicates [2020-06-22 07:11:10,084 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states. Second operand 4 states. [2020-06-22 07:11:10,218 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states.. Second operand 4 states. Result 24 states and 35 transitions. Complement of second has 11 states. [2020-06-22 07:11:10,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 2 accepting loop states [2020-06-22 07:11:10,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 07:11:10,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 27 transitions. [2020-06-22 07:11:10,223 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 27 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 07:11:10,225 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:11:10,225 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 27 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 07:11:10,225 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:11:10,225 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 27 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 07:11:10,226 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:11:10,232 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 35 transitions. [2020-06-22 07:11:10,234 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-06-22 07:11:10,238 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 35 transitions. [2020-06-22 07:11:10,239 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-06-22 07:11:10,240 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-06-22 07:11:10,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 35 transitions. [2020-06-22 07:11:10,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 07:11:10,241 INFO L706 BuchiCegarLoop]: Abstraction has 24 states and 35 transitions. [2020-06-22 07:11:10,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 35 transitions. [2020-06-22 07:11:10,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 11. [2020-06-22 07:11:10,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-06-22 07:11:10,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 17 transitions. [2020-06-22 07:11:10,270 INFO L729 BuchiCegarLoop]: Abstraction has 11 states and 17 transitions. [2020-06-22 07:11:10,270 INFO L609 BuchiCegarLoop]: Abstraction has 11 states and 17 transitions. [2020-06-22 07:11:10,270 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 07:11:10,270 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 17 transitions. [2020-06-22 07:11:10,271 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 07:11:10,271 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:11:10,271 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:11:10,272 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 07:11:10,272 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-22 07:11:10,272 INFO L794 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L6-2: Formula: (and (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_#in~x] 96#L6-2 [44] L6-2-->L7: Formula: (< 0 (+ v_ULTIMATE.start_test_fun_~x_4 v_ULTIMATE.start_test_fun_~y_4)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 97#L7 [2020-06-22 07:11:10,273 INFO L796 eck$LassoCheckResult]: Loop: 97#L7 [46] L7-->L10: Formula: (>= v_ULTIMATE.start_test_fun_~y_6 v_ULTIMATE.start_test_fun_~x_7) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_6, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_6, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7} AuxVars[] AssignedVars[] 90#L10 [48] L10-->L10-2: Formula: (and (= v_ULTIMATE.start_test_fun_~y_8 (+ v_ULTIMATE.start_test_fun_~y_9 (- 1))) (> v_ULTIMATE.start_test_fun_~y_9 v_ULTIMATE.start_test_fun_~x_10)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_9, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_10} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_8, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_10} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y] 91#L10-2 [39] L10-2-->L6-2: Formula: (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) InVars {ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4} OutVars{ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~c~0] 99#L6-2 [44] L6-2-->L7: Formula: (< 0 (+ v_ULTIMATE.start_test_fun_~x_4 v_ULTIMATE.start_test_fun_~y_4)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 97#L7 [2020-06-22 07:11:10,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:10,273 INFO L82 PathProgramCache]: Analyzing trace with hash 2059, now seen corresponding path program 1 times [2020-06-22 07:11:10,273 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:11:10,273 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:11:10,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:10,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:11:10,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:10,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:10,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:10,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:10,281 INFO L82 PathProgramCache]: Analyzing trace with hash 2341288, now seen corresponding path program 1 times [2020-06-22 07:11:10,281 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:11:10,282 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:11:10,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:10,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:11:10,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:10,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:10,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:10,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:10,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1902947506, now seen corresponding path program 1 times [2020-06-22 07:11:10,295 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:11:10,295 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:11:10,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:10,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:11:10,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:11:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:11:10,338 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:11:10,339 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:11:10,339 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:11:10,339 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:11:10,339 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:11:10,339 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:10,339 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:11:10,339 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:11:10,339 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 07:11:10,340 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:11:10,340 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:11:10,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:11:10,345 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 07:11:10,406 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:11:10,406 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:10,420 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:11:10,420 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:10,456 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:11:10,456 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:11:10,473 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:11:10,473 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_fun_~c~0=0} Honda state: {ULTIMATE.start_test_fun_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_test_fun_~c~0=-4}, {ULTIMATE.start_test_fun_~c~0=7}, {ULTIMATE.start_test_fun_~c~0=-2}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:10,506 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:11:10,506 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:11:10,543 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:11:10,544 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:11:10,702 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 07:11:10,704 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:11:10,705 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:11:10,705 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:11:10,705 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:11:10,705 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 07:11:10,706 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 07:11:10,706 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:11:10,706 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:11:10,706 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 07:11:10,706 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:11:10,706 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:11:10,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:11:10,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:11:10,750 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:11:10,750 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 07:11:10,751 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 07:11:10,751 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:11:10,751 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:11:10,752 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:11:10,752 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:11:10,752 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:11:10,753 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:11:10,753 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:11:10,757 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:11:10,757 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 07:11:10,758 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:11:10,758 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:11:10,758 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:11:10,759 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:11:10,759 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:11:10,760 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:11:10,760 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:11:10,766 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 07:11:10,775 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-06-22 07:11:10,775 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2020-06-22 07:11:10,775 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 07:11:10,776 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 07:11:10,776 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 07:11:10,776 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~y) = 1*ULTIMATE.start_test_fun_~y Supporting invariants [] [2020-06-22 07:11:10,777 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 07:11:10,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:11:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:11:10,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 07:11:10,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:11:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:11:10,826 WARN L254 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 07:11:10,826 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:11:10,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 07:11:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:11:10,912 WARN L254 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 07:11:10,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:11:10,995 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 6 predicates after loop cannibalization [2020-06-22 07:11:10,995 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2020-06-22 07:11:10,996 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 11 states and 17 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-06-22 07:11:11,127 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 11 states and 17 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 70 states and 103 transitions. Complement of second has 26 states. [2020-06-22 07:11:11,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 4 non-accepting loop states 2 accepting loop states [2020-06-22 07:11:11,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 07:11:11,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 31 transitions. [2020-06-22 07:11:11,129 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 31 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 07:11:11,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:11:11,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 31 transitions. Stem has 6 letters. Loop has 4 letters. [2020-06-22 07:11:11,131 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:11:11,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 31 transitions. Stem has 2 letters. Loop has 8 letters. [2020-06-22 07:11:11,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:11:11,134 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 103 transitions. [2020-06-22 07:11:11,137 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 07:11:11,137 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 0 states and 0 transitions. [2020-06-22 07:11:11,138 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 07:11:11,138 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 07:11:11,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 07:11:11,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 07:11:11,138 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 07:11:11,138 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 07:11:11,138 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 07:11:11,138 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 07:11:11,138 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 07:11:11,139 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 07:11:11,139 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 07:11:11,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:11:11 BasicIcfg [2020-06-22 07:11:11,145 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 07:11:11,146 INFO L168 Benchmark]: Toolchain (without parser) took 2706.05 ms. Allocated memory was 649.6 MB in the beginning and 685.2 MB in the end (delta: 35.7 MB). Free memory was 565.2 MB in the beginning and 437.0 MB in the end (delta: 128.3 MB). Peak memory consumption was 163.9 MB. Max. memory is 50.3 GB. [2020-06-22 07:11:11,147 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 586.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 07:11:11,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.72 ms. Allocated memory was 649.6 MB in the beginning and 685.2 MB in the end (delta: 35.7 MB). Free memory was 565.2 MB in the beginning and 651.9 MB in the end (delta: -86.7 MB). Peak memory consumption was 29.9 MB. Max. memory is 50.3 GB. [2020-06-22 07:11:11,148 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.15 ms. Allocated memory is still 685.2 MB. Free memory was 651.9 MB in the beginning and 649.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. [2020-06-22 07:11:11,149 INFO L168 Benchmark]: Boogie Preprocessor took 19.00 ms. Allocated memory is still 685.2 MB. Free memory was 649.2 MB in the beginning and 647.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 50.3 GB. [2020-06-22 07:11:11,150 INFO L168 Benchmark]: RCFGBuilder took 207.87 ms. Allocated memory is still 685.2 MB. Free memory was 646.1 MB in the beginning and 633.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 50.3 GB. [2020-06-22 07:11:11,150 INFO L168 Benchmark]: BlockEncodingV2 took 79.93 ms. Allocated memory is still 685.2 MB. Free memory was 633.0 MB in the beginning and 627.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 07:11:11,151 INFO L168 Benchmark]: TraceAbstraction took 151.80 ms. Allocated memory is still 685.2 MB. Free memory was 627.7 MB in the beginning and 618.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. [2020-06-22 07:11:11,151 INFO L168 Benchmark]: BuchiAutomizer took 1928.53 ms. Allocated memory is still 685.2 MB. Free memory was 618.2 MB in the beginning and 437.0 MB in the end (delta: 181.3 MB). Peak memory consumption was 181.3 MB. Max. memory is 50.3 GB. [2020-06-22 07:11:11,155 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 13 edges - StatisticsResult: Encoded RCFG 5 locations, 8 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 586.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 278.72 ms. Allocated memory was 649.6 MB in the beginning and 685.2 MB in the end (delta: 35.7 MB). Free memory was 565.2 MB in the beginning and 651.9 MB in the end (delta: -86.7 MB). Peak memory consumption was 29.9 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.15 ms. Allocated memory is still 685.2 MB. Free memory was 651.9 MB in the beginning and 649.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.00 ms. Allocated memory is still 685.2 MB. Free memory was 649.2 MB in the beginning and 647.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 50.3 GB. * RCFGBuilder took 207.87 ms. Allocated memory is still 685.2 MB. Free memory was 646.1 MB in the beginning and 633.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 79.93 ms. Allocated memory is still 685.2 MB. Free memory was 633.0 MB in the beginning and 627.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 151.80 ms. Allocated memory is still 685.2 MB. Free memory was 627.7 MB in the beginning and 618.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1928.53 ms. Allocated memory is still 685.2 MB. Free memory was 618.2 MB in the beginning and 437.0 MB in the end (delta: 181.3 MB). Peak memory consumption was 181.3 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: 6]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 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=5occurred 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 2 terminating modules (0 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function x and consists of 7 locations. One nondeterministic module has affine ranking function y and consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 13 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 16 SDtfs, 34 SDslu, 22 SDs, 0 SdLazy, 81 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp75 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq139 hnf95 smp100 dnf100 smp100 tf110 neg100 sie118 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 07:11:05.157 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 07:11:11.388 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check