YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 04:56:23,592 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 04:56:23,594 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 04:56:23,606 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 04:56:23,606 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 04:56:23,607 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 04:56:23,608 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 04:56:23,609 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 04:56:23,611 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 04:56:23,612 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 04:56:23,613 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 04:56:23,613 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 04:56:23,614 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 04:56:23,615 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 04:56:23,616 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 04:56:23,616 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 04:56:23,617 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 04:56:23,619 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 04:56:23,621 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 04:56:23,622 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 04:56:23,623 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 04:56:23,624 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 04:56:23,626 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 04:56:23,626 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 04:56:23,627 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 04:56:23,627 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 04:56:23,628 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 04:56:23,629 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 04:56:23,629 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 04:56:23,630 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 04:56:23,631 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 04:56:23,632 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 04:56:23,633 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 04:56:23,633 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 04:56:23,634 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 04:56:23,634 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 04:56:23,634 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 04:56:23,635 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 04:56:23,635 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 04:56:23,636 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 04:56:23,650 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 04:56:23,650 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 04:56:23,651 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 04:56:23,652 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 04:56:23,652 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 04:56:23,652 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 04:56:23,652 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 04:56:23,652 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 04:56:23,652 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 04:56:23,653 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 04:56:23,653 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 04:56:23,653 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 04:56:23,653 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 04:56:23,653 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 04:56:23,653 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:56:23,654 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 04:56:23,654 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 04:56:23,654 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 04:56:23,654 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 04:56:23,654 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 04:56:23,655 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 04:56:23,655 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 04:56:23,655 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 04:56:23,655 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 04:56:23,655 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 04:56:23,655 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 04:56:23,656 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 04:56:23,656 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 04:56:23,656 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 04:56:23,681 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 04:56:23,694 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 04:56:23,697 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 04:56:23,699 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 04:56:23,699 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 04:56:23,700 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 04:56:23,768 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/c30bbf89516c43a2b81b815f426cbcc8/FLAG55acb5f0b [2020-06-22 04:56:24,099 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 04:56:24,100 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 04:56:24,106 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/c30bbf89516c43a2b81b815f426cbcc8/FLAG55acb5f0b [2020-06-22 04:56:24,523 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/c30bbf89516c43a2b81b815f426cbcc8 [2020-06-22 04:56:24,534 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 04:56:24,536 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 04:56:24,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 04:56:24,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 04:56:24,541 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 04:56:24,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 04:56:24" (1/1) ... [2020-06-22 04:56:24,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b0f2008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:24, skipping insertion in model container [2020-06-22 04:56:24,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 04:56:24" (1/1) ... [2020-06-22 04:56:24,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 04:56:24,571 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 04:56:24,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 04:56:24,734 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 04:56:24,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 04:56:24,832 INFO L195 MainTranslator]: Completed translation [2020-06-22 04:56:24,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:24 WrapperNode [2020-06-22 04:56:24,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 04:56:24,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 04:56:24,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 04:56:24,833 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 04:56:24,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:24" (1/1) ... [2020-06-22 04:56:24,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:24" (1/1) ... [2020-06-22 04:56:24,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 04:56:24,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 04:56:24,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 04:56:24,868 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 04:56:24,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:24" (1/1) ... [2020-06-22 04:56:24,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:24" (1/1) ... [2020-06-22 04:56:24,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:24" (1/1) ... [2020-06-22 04:56:24,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:24" (1/1) ... [2020-06-22 04:56:24,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:24" (1/1) ... [2020-06-22 04:56:24,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:24" (1/1) ... [2020-06-22 04:56:24,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:24" (1/1) ... [2020-06-22 04:56:24,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 04:56:24,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 04:56:24,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 04:56:24,888 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 04:56:24,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:24" (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 04:56:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 04:56:24,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 04:56:25,096 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 04:56:25,096 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2020-06-22 04:56:25,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:56:25 BoogieIcfgContainer [2020-06-22 04:56:25,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 04:56:25,098 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 04:56:25,098 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 04:56:25,100 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 04:56:25,101 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:56:25" (1/1) ... [2020-06-22 04:56:25,116 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 14 edges [2020-06-22 04:56:25,117 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 04:56:25,118 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 04:56:25,119 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 04:56:25,119 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 04:56:25,121 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 04:56:25,122 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 04:56:25,122 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 04:56:25,138 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 04:56:25,154 INFO L200 BlockEncoder]: SBE split 4 edges [2020-06-22 04:56:25,159 INFO L70 emoveInfeasibleEdges]: Removed 3 edges and 0 locations because of local infeasibility [2020-06-22 04:56:25,160 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 04:56:25,171 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 04:56:25,173 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 04:56:25,175 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 04:56:25,176 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 04:56:25,176 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 04:56:25,176 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 04:56:25,177 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 11 edges [2020-06-22 04:56:25,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 04:56:25 BasicIcfg [2020-06-22 04:56:25,177 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 04:56:25,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 04:56:25,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 04:56:25,182 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 04:56:25,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 04:56:24" (1/4) ... [2020-06-22 04:56:25,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef21df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 04:56:25, skipping insertion in model container [2020-06-22 04:56:25,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:24" (2/4) ... [2020-06-22 04:56:25,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef21df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 04:56:25, skipping insertion in model container [2020-06-22 04:56:25,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:56:25" (3/4) ... [2020-06-22 04:56:25,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef21df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:56:25, skipping insertion in model container [2020-06-22 04:56:25,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 04:56:25" (4/4) ... [2020-06-22 04:56:25,186 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 04:56:25,197 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 04:56:25,205 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 04:56:25,222 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 04:56:25,251 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 04:56:25,253 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 04:56:25,253 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 04:56:25,253 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 04:56:25,253 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 04:56:25,253 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 04:56:25,253 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 04:56:25,254 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 04:56:25,254 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 04:56:25,268 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-06-22 04:56:25,273 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 04:56:25,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-06-22 04:56:25,330 INFO L451 ceAbstractionStarter]: At program point L19-2(lines 19 20) the Hoare annotation is: true [2020-06-22 04:56:25,330 INFO L451 ceAbstractionStarter]: At program point L19-3(lines 15 21) the Hoare annotation is: true [2020-06-22 04:56:25,331 INFO L451 ceAbstractionStarter]: At program point L16-2(lines 16 17) the Hoare annotation is: true [2020-06-22 04:56:25,331 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 04:56:25,331 INFO L448 ceAbstractionStarter]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2020-06-22 04:56:25,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:56:25 BasicIcfg [2020-06-22 04:56:25,339 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 04:56:25,340 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 04:56:25,340 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 04:56:25,343 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 04:56:25,344 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:56:25,344 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 04:56:24" (1/5) ... [2020-06-22 04:56:25,345 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2361d45c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 04:56:25, skipping insertion in model container [2020-06-22 04:56:25,345 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:56:25,345 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:24" (2/5) ... [2020-06-22 04:56:25,346 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2361d45c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 04:56:25, skipping insertion in model container [2020-06-22 04:56:25,346 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:56:25,346 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:56:25" (3/5) ... [2020-06-22 04:56:25,346 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2361d45c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 04:56:25, skipping insertion in model container [2020-06-22 04:56:25,346 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:56:25,347 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 04:56:25" (4/5) ... [2020-06-22 04:56:25,347 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2361d45c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 04:56:25, skipping insertion in model container [2020-06-22 04:56:25,347 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:56:25,347 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:56:25" (5/5) ... [2020-06-22 04:56:25,349 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 04:56:25,377 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 04:56:25,377 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 04:56:25,377 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 04:56:25,377 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 04:56:25,378 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 04:56:25,378 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 04:56:25,378 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 04:56:25,378 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 04:56:25,378 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 04:56:25,382 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-06-22 04:56:25,400 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 04:56:25,400 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:56:25,401 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:56:25,406 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 04:56:25,406 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-22 04:56:25,406 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 04:56:25,406 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-06-22 04:56:25,407 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 04:56:25,407 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:56:25,407 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:56:25,408 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 04:56:25,408 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-22 04:56:25,413 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [43] ULTIMATE.startENTRY-->L19-3: Formula: (and (= v_ULTIMATE.start_main_~n~0_2 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_2, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_3|, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~post5=|v_ULTIMATE.start_main_#t~post5_1|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~post7, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post5, ULTIMATE.start_main_#t~post4] 4#L19-3true [2020-06-22 04:56:25,413 INFO L796 eck$LassoCheckResult]: Loop: 4#L19-3true [46] L19-3-->L16-2: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 7#L16-2true [62] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 6#L16-3true [52] L16-3-->L19-2: Formula: (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_6 1)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~post5=|v_ULTIMATE.start_main_#t~post5_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post5] 5#L19-2true [66] L19-2-->L19-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet6_5|) InVars {ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_5|} OutVars{ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet6] 4#L19-3true [2020-06-22 04:56:25,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:56:25,420 INFO L82 PathProgramCache]: Analyzing trace with hash 74, now seen corresponding path program 1 times [2020-06-22 04:56:25,422 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:56:25,422 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:56:25,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:25,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:56:25,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:25,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:56:25,484 INFO L82 PathProgramCache]: Analyzing trace with hash 2355167, now seen corresponding path program 1 times [2020-06-22 04:56:25,485 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:56:25,485 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:56:25,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:25,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:56:25,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:25,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:56:25,507 INFO L82 PathProgramCache]: Analyzing trace with hash 69772200, now seen corresponding path program 1 times [2020-06-22 04:56:25,507 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:56:25,507 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:56:25,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:25,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:56:25,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:25,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:25,565 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:56:25,566 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:56:25,566 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:56:25,566 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:56:25,566 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 04:56:25,566 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:56:25,567 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:56:25,567 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:56:25,567 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 04:56:25,567 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:56:25,567 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:56:25,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:25,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:25,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:25,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:25,671 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:56:25,672 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 04:56:25,679 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:56:25,679 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:56:25,688 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:56:25,689 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6=0} Honda state: {ULTIMATE.start_main_#t~nondet6=0} 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 04:56:25,720 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:56:25,720 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:56:25,724 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:56:25,724 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5=0} Honda state: {ULTIMATE.start_main_#t~post5=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 04:56:25,752 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:56:25,752 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 04:56:25,783 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 04:56:25,783 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:56:25,814 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 04:56:25,817 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:56:25,817 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:56:25,817 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:56:25,817 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:56:25,817 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 04:56:25,817 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 04:56:25,818 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:56:25,818 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:56:25,818 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 04:56:25,818 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:56:25,818 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:56:25,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:25,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:25,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:25,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:25,906 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:56:25,912 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 04:56:25,914 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 04:56:25,915 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:56:25,915 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:56:25,916 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:56:25,916 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:56:25,916 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:56:25,918 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:56:25,919 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:56:25,923 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:56:25,924 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 04:56:25,924 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:56:25,925 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:56:25,925 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:56:25,925 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:56:25,925 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:56:25,926 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:56:25,926 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:56:25,927 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:56:25,928 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 04:56:25,928 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:56:25,928 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:56:25,928 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:56:25,929 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:56:25,929 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:56:25,929 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:56:25,930 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:56:25,936 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 04:56:25,940 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 04:56:25,941 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 04:56:25,943 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 04:56:25,943 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 04:56:25,943 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 04:56:25,944 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-06-22 04:56:25,945 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 04:56:25,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:56:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:56:25,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 04:56:25,989 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:56:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:56:26,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 04:56:26,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:56:26,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 04:56:26,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:56:26,087 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 04:56:26,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:56:26,101 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 04:56:26,106 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 04:56:26,108 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states. Second operand 4 states. [2020-06-22 04:56:26,170 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states.. Second operand 4 states. Result 14 states and 39 transitions. Complement of second has 6 states. [2020-06-22 04:56:26,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-22 04:56:26,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 04:56:26,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2020-06-22 04:56:26,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 04:56:26,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:56:26,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 4 letters. [2020-06-22 04:56:26,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:56:26,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 1 letters. Loop has 8 letters. [2020-06-22 04:56:26,178 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:56:26,184 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 39 transitions. [2020-06-22 04:56:26,186 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-06-22 04:56:26,191 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 35 transitions. [2020-06-22 04:56:26,193 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-06-22 04:56:26,193 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-06-22 04:56:26,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 35 transitions. [2020-06-22 04:56:26,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 04:56:26,194 INFO L706 BuchiCegarLoop]: Abstraction has 13 states and 35 transitions. [2020-06-22 04:56:26,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 35 transitions. [2020-06-22 04:56:26,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 10. [2020-06-22 04:56:26,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-06-22 04:56:26,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 28 transitions. [2020-06-22 04:56:26,225 INFO L729 BuchiCegarLoop]: Abstraction has 10 states and 28 transitions. [2020-06-22 04:56:26,225 INFO L609 BuchiCegarLoop]: Abstraction has 10 states and 28 transitions. [2020-06-22 04:56:26,225 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 04:56:26,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 28 transitions. [2020-06-22 04:56:26,226 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-06-22 04:56:26,226 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:56:26,226 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:56:26,227 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 04:56:26,227 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 04:56:26,227 INFO L794 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRY [43] ULTIMATE.startENTRY-->L19-3: Formula: (and (= v_ULTIMATE.start_main_~n~0_2 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_2, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_3|, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~post5=|v_ULTIMATE.start_main_#t~post5_1|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~post7, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post5, ULTIMATE.start_main_#t~post4] 76#L19-3 [46] L19-3-->L16-2: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 72#L16-2 [2020-06-22 04:56:26,227 INFO L796 eck$LassoCheckResult]: Loop: 72#L16-2 [64] L16-2-->L16-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_8) (< 0 |v_ULTIMATE.start_main_#t~nondet3_5|) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_7 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 72#L16-2 [2020-06-22 04:56:26,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:56:26,228 INFO L82 PathProgramCache]: Analyzing trace with hash 2340, now seen corresponding path program 1 times [2020-06-22 04:56:26,228 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:56:26,228 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:56:26,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:26,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:56:26,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:26,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:56:26,235 INFO L82 PathProgramCache]: Analyzing trace with hash 95, now seen corresponding path program 1 times [2020-06-22 04:56:26,235 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:56:26,235 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:56:26,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:26,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:56:26,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:26,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:56:26,241 INFO L82 PathProgramCache]: Analyzing trace with hash 72604, now seen corresponding path program 1 times [2020-06-22 04:56:26,241 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:56:26,241 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:56:26,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:26,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:56:26,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:26,264 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:56:26,264 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:56:26,264 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:56:26,264 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:56:26,264 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 04:56:26,264 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:56:26,264 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:56:26,265 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:56:26,265 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 04:56:26,265 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:56:26,265 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:56:26,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:26,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:26,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:26,296 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:56:26,296 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 04:56:26,299 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:56:26,299 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:56:26,326 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:56:26,326 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=1} Honda state: {ULTIMATE.start_main_#t~nondet3=1} 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 04:56:26,331 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:56:26,331 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 04:56:26,360 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 04:56:26,361 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:56:26,391 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 04:56:26,393 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:56:26,393 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:56:26,394 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:56:26,394 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:56:26,394 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 04:56:26,394 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 04:56:26,394 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:56:26,394 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:56:26,394 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 04:56:26,394 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:56:26,395 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:56:26,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:26,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:26,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:26,452 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:56:26,452 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 04:56:26,453 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 04:56:26,454 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:56:26,454 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:56:26,454 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:56:26,454 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:56:26,454 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:56:26,455 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:56:26,455 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:56:26,458 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:56:26,459 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 04:56:26,460 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:56:26,460 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:56:26,460 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:56:26,461 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:56:26,461 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:56:26,462 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:56:26,462 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:56:26,466 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 04:56:26,470 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 04:56:26,470 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 04:56:26,470 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 04:56:26,471 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 04:56:26,471 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 04:56:26,471 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2020-06-22 04:56:26,471 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 04:56:26,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:56:26,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:56:26,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 04:56:26,508 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:56:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:56:26,519 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 04:56:26,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:56:26,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 04:56:26,520 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 04:56:26,520 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-06-22 04:56:26,521 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 10 states and 28 transitions. cyclomatic complexity: 21 Second operand 2 states. [2020-06-22 04:56:26,562 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 10 states and 28 transitions. cyclomatic complexity: 21. Second operand 2 states. Result 21 states and 49 transitions. Complement of second has 6 states. [2020-06-22 04:56:26,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 04:56:26,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 04:56:26,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2020-06-22 04:56:26,565 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 2 letters. Loop has 1 letters. [2020-06-22 04:56:26,565 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:56:26,566 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 3 letters. Loop has 1 letters. [2020-06-22 04:56:26,566 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:56:26,566 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 04:56:26,566 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:56:26,568 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 49 transitions. [2020-06-22 04:56:26,569 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 04:56:26,570 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 14 states and 33 transitions. [2020-06-22 04:56:26,571 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-06-22 04:56:26,571 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2020-06-22 04:56:26,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 33 transitions. [2020-06-22 04:56:26,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 04:56:26,571 INFO L706 BuchiCegarLoop]: Abstraction has 14 states and 33 transitions. [2020-06-22 04:56:26,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 33 transitions. [2020-06-22 04:56:26,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-06-22 04:56:26,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-06-22 04:56:26,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 33 transitions. [2020-06-22 04:56:26,573 INFO L729 BuchiCegarLoop]: Abstraction has 14 states and 33 transitions. [2020-06-22 04:56:26,574 INFO L609 BuchiCegarLoop]: Abstraction has 14 states and 33 transitions. [2020-06-22 04:56:26,574 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 04:56:26,574 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 33 transitions. [2020-06-22 04:56:26,575 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 04:56:26,575 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:56:26,575 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:56:26,576 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-06-22 04:56:26,576 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 04:56:26,576 INFO L794 eck$LassoCheckResult]: Stem: 136#ULTIMATE.startENTRY [43] ULTIMATE.startENTRY-->L19-3: Formula: (and (= v_ULTIMATE.start_main_~n~0_2 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~y~0_3 |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~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_2, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_3|, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~post5=|v_ULTIMATE.start_main_#t~post5_1|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3} 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~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~post7, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post5, ULTIMATE.start_main_#t~post4] 132#L19-3 [46] L19-3-->L16-2: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 133#L16-2 [63] L16-2-->L16-3: Formula: (> 0 v_ULTIMATE.start_main_~y~0_6) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 144#L16-3 [52] L16-3-->L19-2: Formula: (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_6 1)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~post5=|v_ULTIMATE.start_main_#t~post5_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post5] 143#L19-2 [69] L19-2-->L19-2: Formula: (and (= (+ v_ULTIMATE.start_main_~y~0_2 1) v_ULTIMATE.start_main_~y~0_1) (< 0 |v_ULTIMATE.start_main_#t~nondet6_2|) (<= v_ULTIMATE.start_main_~y~0_2 v_ULTIMATE.start_main_~n~0_1)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_2|} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_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_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~post7] 137#L19-2 [2020-06-22 04:56:26,577 INFO L796 eck$LassoCheckResult]: Loop: 137#L19-2 [68] L19-2-->L19-2: Formula: (and (= (+ v_ULTIMATE.start_main_~y~0_2 1) v_ULTIMATE.start_main_~y~0_1) (> 0 |v_ULTIMATE.start_main_#t~nondet6_2|) (<= v_ULTIMATE.start_main_~y~0_2 v_ULTIMATE.start_main_~n~0_1)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_2|} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_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_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~post7] 137#L19-2 [2020-06-22 04:56:26,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:56:26,577 INFO L82 PathProgramCache]: Analyzing trace with hash 69773164, now seen corresponding path program 1 times [2020-06-22 04:56:26,577 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:56:26,577 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:56:26,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:26,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:56:26,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:26,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:56:26,591 INFO L82 PathProgramCache]: Analyzing trace with hash 99, now seen corresponding path program 1 times [2020-06-22 04:56:26,591 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:56:26,591 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:56:26,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:26,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:56:26,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:26,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:56:26,597 INFO L82 PathProgramCache]: Analyzing trace with hash -2131999144, now seen corresponding path program 1 times [2020-06-22 04:56:26,597 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:56:26,598 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:56:26,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:26,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:56:26,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:26,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:26,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:26,624 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:56:26,624 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:56:26,625 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:56:26,625 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:56:26,625 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 04:56:26,625 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:56:26,625 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:56:26,625 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:56:26,625 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 04:56:26,625 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:56:26,625 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:56:26,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:26,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:26,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:26,659 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:56:26,659 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:56:26,663 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:56:26,663 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:56:26,691 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:56:26,691 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6=-1} Honda state: {ULTIMATE.start_main_#t~nondet6=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:56:26,699 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:56:26,699 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:56:26,702 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:56:26,702 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7=0} Honda state: {ULTIMATE.start_main_#t~post7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:56:26,731 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:56:26,732 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:56:26,764 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 04:56:26,764 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:56:26,961 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 04:56:26,963 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:56:26,963 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:56:26,964 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:56:26,964 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:56:26,964 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 04:56:26,964 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 04:56:26,964 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:56:26,964 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:56:26,964 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 04:56:26,964 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:56:26,964 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:56:26,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:26,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:26,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:26,996 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:56:26,997 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 04:56:26,997 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 04:56:26,998 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:56:26,998 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:56:26,999 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:56:26,999 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:56:26,999 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:56:26,999 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:56:26,999 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:56:27,002 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:56:27,003 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 04:56:27,003 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:56:27,003 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:56:27,003 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:56:27,004 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:56:27,004 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:56:27,004 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:56:27,004 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:56:27,005 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:56:27,006 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 04:56:27,006 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:56:27,006 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:56:27,006 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:56:27,006 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:56:27,007 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:56:27,007 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:56:27,007 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:56:27,012 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 04:56:27,015 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 04:56:27,015 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 04:56:27,016 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 04:56:27,016 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 04:56:27,016 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 04:56:27,016 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~n~0) = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~n~0 + 1 Supporting invariants [] [2020-06-22 04:56:27,017 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 04:56:27,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:56:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:56:27,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 04:56:27,039 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:56:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:56:27,043 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 04:56:27,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:56:27,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 04:56:27,044 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 04:56:27,044 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-06-22 04:56:27,045 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 14 states and 33 transitions. cyclomatic complexity: 21 Second operand 2 states. [2020-06-22 04:56:27,088 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 14 states and 33 transitions. cyclomatic complexity: 21. Second operand 2 states. Result 37 states and 85 transitions. Complement of second has 4 states. [2020-06-22 04:56:27,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 04:56:27,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 04:56:27,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2020-06-22 04:56:27,089 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 5 letters. Loop has 1 letters. [2020-06-22 04:56:27,090 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:56:27,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 6 letters. Loop has 1 letters. [2020-06-22 04:56:27,090 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:56:27,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 5 letters. Loop has 2 letters. [2020-06-22 04:56:27,090 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:56:27,092 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 85 transitions. [2020-06-22 04:56:27,094 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 04:56:27,096 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 27 states and 61 transitions. [2020-06-22 04:56:27,096 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-06-22 04:56:27,096 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2020-06-22 04:56:27,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 61 transitions. [2020-06-22 04:56:27,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 04:56:27,097 INFO L706 BuchiCegarLoop]: Abstraction has 27 states and 61 transitions. [2020-06-22 04:56:27,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 61 transitions. [2020-06-22 04:56:27,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2020-06-22 04:56:27,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-06-22 04:56:27,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 45 transitions. [2020-06-22 04:56:27,100 INFO L729 BuchiCegarLoop]: Abstraction has 19 states and 45 transitions. [2020-06-22 04:56:27,100 INFO L609 BuchiCegarLoop]: Abstraction has 19 states and 45 transitions. [2020-06-22 04:56:27,100 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 04:56:27,100 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 45 transitions. [2020-06-22 04:56:27,101 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 04:56:27,101 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:56:27,101 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:56:27,101 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-06-22 04:56:27,101 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 04:56:27,102 INFO L794 eck$LassoCheckResult]: Stem: 224#ULTIMATE.startENTRY [43] ULTIMATE.startENTRY-->L19-3: Formula: (and (= v_ULTIMATE.start_main_~n~0_2 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~y~0_3 |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~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_2, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_3|, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~post5=|v_ULTIMATE.start_main_#t~post5_1|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3} 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~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~post7, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post5, ULTIMATE.start_main_#t~post4] 220#L19-3 [46] L19-3-->L16-2: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 221#L16-2 [63] L16-2-->L16-3: Formula: (> 0 v_ULTIMATE.start_main_~y~0_6) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 234#L16-3 [52] L16-3-->L19-2: Formula: (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_6 1)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~post5=|v_ULTIMATE.start_main_#t~post5_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post5] 230#L19-2 [68] L19-2-->L19-2: Formula: (and (= (+ v_ULTIMATE.start_main_~y~0_2 1) v_ULTIMATE.start_main_~y~0_1) (> 0 |v_ULTIMATE.start_main_#t~nondet6_2|) (<= v_ULTIMATE.start_main_~y~0_2 v_ULTIMATE.start_main_~n~0_1)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_2|} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_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_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~post7] 225#L19-2 [2020-06-22 04:56:27,102 INFO L796 eck$LassoCheckResult]: Loop: 225#L19-2 [68] L19-2-->L19-2: Formula: (and (= (+ v_ULTIMATE.start_main_~y~0_2 1) v_ULTIMATE.start_main_~y~0_1) (> 0 |v_ULTIMATE.start_main_#t~nondet6_2|) (<= v_ULTIMATE.start_main_~y~0_2 v_ULTIMATE.start_main_~n~0_1)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_2|} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_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_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~post7] 225#L19-2 [2020-06-22 04:56:27,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:56:27,103 INFO L82 PathProgramCache]: Analyzing trace with hash 69773163, now seen corresponding path program 1 times [2020-06-22 04:56:27,103 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:56:27,103 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:56:27,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:27,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:56:27,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:27,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:56:27,113 INFO L82 PathProgramCache]: Analyzing trace with hash 99, now seen corresponding path program 2 times [2020-06-22 04:56:27,113 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:56:27,114 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:56:27,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:27,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:56:27,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:27,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:56:27,119 INFO L82 PathProgramCache]: Analyzing trace with hash -2131999175, now seen corresponding path program 2 times [2020-06-22 04:56:27,119 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:56:27,119 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:56:27,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:27,120 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 04:56:27,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:27,144 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:56:27,144 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:56:27,145 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:56:27,145 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:56:27,145 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 04:56:27,145 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:56:27,145 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:56:27,145 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:56:27,146 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 04:56:27,146 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:56:27,146 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:56:27,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:27,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:27,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:27,184 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:56:27,184 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:56:27,187 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:56:27,187 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:56:27,215 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:56:27,215 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6=-1} Honda state: {ULTIMATE.start_main_#t~nondet6=-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 04:56:27,220 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:56:27,220 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:56:27,223 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:56:27,223 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7=0} Honda state: {ULTIMATE.start_main_#t~post7=0} 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 04:56:27,250 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:56:27,250 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 04:56:27,280 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 04:56:27,280 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:56:27,488 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 04:56:27,490 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:56:27,490 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:56:27,490 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:56:27,491 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:56:27,491 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 04:56:27,491 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 04:56:27,491 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:56:27,491 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:56:27,491 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 04:56:27,491 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:56:27,491 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:56:27,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:27,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:27,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:27,523 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:56:27,524 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 04:56:27,524 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 04:56:27,525 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:56:27,525 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:56:27,526 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:56:27,526 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:56:27,526 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:56:27,526 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:56:27,526 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:56:27,529 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:56:27,529 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 04:56:27,530 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:56:27,530 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:56:27,530 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:56:27,530 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:56:27,530 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:56:27,531 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:56:27,531 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:56:27,534 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 04:56:27,538 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 04:56:27,538 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 04:56:27,538 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 04:56:27,539 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 04:56:27,539 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 04:56:27,539 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~n~0 - 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2020-06-22 04:56:27,540 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 04:56:27,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:56:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:56:27,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 04:56:27,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:56:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:56:27,567 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 04:56:27,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:56:27,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 04:56:27,568 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 04:56:27,568 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-06-22 04:56:27,568 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 19 states and 45 transitions. cyclomatic complexity: 28 Second operand 2 states. [2020-06-22 04:56:27,632 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 19 states and 45 transitions. cyclomatic complexity: 28. Second operand 2 states. Result 48 states and 112 transitions. Complement of second has 4 states. [2020-06-22 04:56:27,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 04:56:27,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 04:56:27,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2020-06-22 04:56:27,633 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 5 letters. Loop has 1 letters. [2020-06-22 04:56:27,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:56:27,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 6 letters. Loop has 1 letters. [2020-06-22 04:56:27,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:56:27,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 5 letters. Loop has 2 letters. [2020-06-22 04:56:27,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:56:27,635 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 112 transitions. [2020-06-22 04:56:27,638 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 04:56:27,638 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 0 states and 0 transitions. [2020-06-22 04:56:27,638 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 04:56:27,638 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 04:56:27,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 04:56:27,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 04:56:27,639 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 04:56:27,639 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 04:56:27,639 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 04:56:27,639 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 04:56:27,639 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 04:56:27,639 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 04:56:27,639 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 04:56:27,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 04:56:27 BasicIcfg [2020-06-22 04:56:27,645 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 04:56:27,646 INFO L168 Benchmark]: Toolchain (without parser) took 3110.91 ms. Allocated memory was 649.6 MB in the beginning and 757.1 MB in the end (delta: 107.5 MB). Free memory was 564.9 MB in the beginning and 708.6 MB in the end (delta: -143.7 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 04:56:27,647 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 04:56:27,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.80 ms. Allocated memory was 649.6 MB in the beginning and 692.1 MB in the end (delta: 42.5 MB). Free memory was 564.9 MB in the beginning and 657.9 MB in the end (delta: -93.0 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. [2020-06-22 04:56:27,648 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.29 ms. Allocated memory is still 692.1 MB. Free memory was 657.9 MB in the beginning and 656.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 04:56:27,649 INFO L168 Benchmark]: Boogie Preprocessor took 19.44 ms. Allocated memory is still 692.1 MB. Free memory was 656.8 MB in the beginning and 653.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 50.3 GB. [2020-06-22 04:56:27,650 INFO L168 Benchmark]: RCFGBuilder took 210.39 ms. Allocated memory is still 692.1 MB. Free memory was 653.9 MB in the beginning and 639.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. [2020-06-22 04:56:27,650 INFO L168 Benchmark]: BlockEncodingV2 took 79.20 ms. Allocated memory is still 692.1 MB. Free memory was 639.3 MB in the beginning and 632.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. [2020-06-22 04:56:27,651 INFO L168 Benchmark]: TraceAbstraction took 161.38 ms. Allocated memory is still 692.1 MB. Free memory was 632.8 MB in the beginning and 623.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 50.3 GB. [2020-06-22 04:56:27,651 INFO L168 Benchmark]: BuchiAutomizer took 2305.35 ms. Allocated memory was 692.1 MB in the beginning and 757.1 MB in the end (delta: 65.0 MB). Free memory was 623.1 MB in the beginning and 708.6 MB in the end (delta: -85.5 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 04:56:27,657 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 14 edges - StatisticsResult: Encoded RCFG 5 locations, 11 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 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 295.80 ms. Allocated memory was 649.6 MB in the beginning and 692.1 MB in the end (delta: 42.5 MB). Free memory was 564.9 MB in the beginning and 657.9 MB in the end (delta: -93.0 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.29 ms. Allocated memory is still 692.1 MB. Free memory was 657.9 MB in the beginning and 656.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.44 ms. Allocated memory is still 692.1 MB. Free memory was 656.8 MB in the beginning and 653.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 50.3 GB. * RCFGBuilder took 210.39 ms. Allocated memory is still 692.1 MB. Free memory was 653.9 MB in the beginning and 639.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 79.20 ms. Allocated memory is still 692.1 MB. Free memory was 639.3 MB in the beginning and 632.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 161.38 ms. Allocated memory is still 692.1 MB. Free memory was 632.8 MB in the beginning and 623.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2305.35 ms. Allocated memory was 692.1 MB in the beginning and 757.1 MB in the end (delta: 65.0 MB). Free memory was 623.1 MB in the beginning and 708.6 MB in the end (delta: -85.5 MB). There was no memory consumed. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: 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, 3 LocationsWithAnnotation, 3 PreInvPairs, 3 NumberOfFragments, 3 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 0 deterministic, 4 nondeterministic). One nondeterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. One nondeterministic module has affine ranking function 2 * y + 1 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * y + 2 * n + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * n + -2 * y + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 19 states and ocurred in iteration 3. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 18 SDtfs, 75 SDslu, 24 SDs, 0 SdLazy, 105 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp73 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 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 04:56:21.281 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 04:56:27.888 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check