YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 06:49:25,561 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 06:49:25,563 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 06:49:25,575 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 06:49:25,575 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 06:49:25,576 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 06:49:25,577 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 06:49:25,579 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 06:49:25,580 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 06:49:25,581 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 06:49:25,582 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 06:49:25,582 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 06:49:25,583 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 06:49:25,584 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 06:49:25,585 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 06:49:25,586 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 06:49:25,587 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 06:49:25,589 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 06:49:25,591 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 06:49:25,592 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 06:49:25,593 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 06:49:25,595 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 06:49:25,597 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 06:49:25,597 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 06:49:25,597 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 06:49:25,598 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 06:49:25,598 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 06:49:25,599 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 06:49:25,600 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 06:49:25,600 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 06:49:25,601 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 06:49:25,602 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 06:49:25,603 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 06:49:25,603 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 06:49:25,603 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 06:49:25,604 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 06:49:25,604 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 06:49:25,605 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 06:49:25,605 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 06:49:25,606 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 06:49:25,620 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 06:49:25,621 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 06:49:25,622 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 06:49:25,622 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 06:49:25,622 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 06:49:25,622 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 06:49:25,622 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 06:49:25,623 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 06:49:25,623 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 06:49:25,623 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 06:49:25,623 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 06:49:25,623 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 06:49:25,623 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 06:49:25,624 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 06:49:25,624 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:49:25,624 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 06:49:25,624 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 06:49:25,624 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 06:49:25,625 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 06:49:25,625 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 06:49:25,625 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 06:49:25,625 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 06:49:25,625 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 06:49:25,626 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 06:49:25,626 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 06:49:25,626 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 06:49:25,626 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 06:49:25,626 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 06:49:25,627 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 06:49:25,653 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 06:49:25,666 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 06:49:25,669 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 06:49:25,671 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 06:49:25,671 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 06:49:25,672 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 06:49:25,736 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/da3153e4fb924c5fb8f78fd2265e4452/FLAGbee12d6ee [2020-06-22 06:49:26,074 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 06:49:26,074 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 06:49:26,081 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/da3153e4fb924c5fb8f78fd2265e4452/FLAGbee12d6ee [2020-06-22 06:49:26,482 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/da3153e4fb924c5fb8f78fd2265e4452 [2020-06-22 06:49:26,494 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 06:49:26,495 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 06:49:26,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 06:49:26,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 06:49:26,500 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 06:49:26,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 06:49:26" (1/1) ... [2020-06-22 06:49:26,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44731908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:49:26, skipping insertion in model container [2020-06-22 06:49:26,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 06:49:26" (1/1) ... [2020-06-22 06:49:26,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 06:49:26,529 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 06:49:26,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 06:49:26,691 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 06:49:26,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 06:49:26,785 INFO L195 MainTranslator]: Completed translation [2020-06-22 06:49:26,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:49:26 WrapperNode [2020-06-22 06:49:26,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 06:49:26,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 06:49:26,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 06:49:26,787 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 06:49:26,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:49:26" (1/1) ... [2020-06-22 06:49:26,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:49:26" (1/1) ... [2020-06-22 06:49:26,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 06:49:26,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 06:49:26,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 06:49:26,826 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 06:49:26,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:49:26" (1/1) ... [2020-06-22 06:49:26,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:49:26" (1/1) ... [2020-06-22 06:49:26,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:49:26" (1/1) ... [2020-06-22 06:49:26,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:49:26" (1/1) ... [2020-06-22 06:49:26,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:49:26" (1/1) ... [2020-06-22 06:49:26,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:49:26" (1/1) ... [2020-06-22 06:49:26,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:49:26" (1/1) ... [2020-06-22 06:49:26,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 06:49:26,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 06:49:26,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 06:49:26,846 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 06:49:26,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:49:26" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 06:49:26,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 06:49:26,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 06:49:27,063 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 06:49:27,063 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 06:49:27,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:49:27 BoogieIcfgContainer [2020-06-22 06:49:27,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 06:49:27,066 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 06:49:27,066 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 06:49:27,068 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 06:49:27,069 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:49:27" (1/1) ... [2020-06-22 06:49:27,084 INFO L313 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2020-06-22 06:49:27,085 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 06:49:27,086 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 06:49:27,086 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 06:49:27,087 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 06:49:27,088 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 06:49:27,089 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 06:49:27,090 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 06:49:27,104 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 06:49:27,119 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 06:49:27,124 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 06:49:27,126 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 06:49:27,141 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 06:49:27,143 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 06:49:27,144 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 06:49:27,145 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 06:49:27,145 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 06:49:27,145 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 06:49:27,145 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 3 edges [2020-06-22 06:49:27,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 06:49:27 BasicIcfg [2020-06-22 06:49:27,146 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 06:49:27,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 06:49:27,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 06:49:27,150 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 06:49:27,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 06:49:26" (1/4) ... [2020-06-22 06:49:27,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b964117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 06:49:27, skipping insertion in model container [2020-06-22 06:49:27,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:49:26" (2/4) ... [2020-06-22 06:49:27,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b964117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 06:49:27, skipping insertion in model container [2020-06-22 06:49:27,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:49:27" (3/4) ... [2020-06-22 06:49:27,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b964117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 06:49:27, skipping insertion in model container [2020-06-22 06:49:27,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 06:49:27" (4/4) ... [2020-06-22 06:49:27,154 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 06:49:27,165 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 06:49:27,173 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 06:49:27,191 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 06:49:27,219 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 06:49:27,220 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 06:49:27,220 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 06:49:27,220 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 06:49:27,221 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 06:49:27,221 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 06:49:27,221 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 06:49:27,221 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 06:49:27,221 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 06:49:27,235 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-06-22 06:49:27,240 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 06:49:27,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-06-22 06:49:27,292 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 06:49:27,292 INFO L451 ceAbstractionStarter]: At program point L23-2(lines 23 27) the Hoare annotation is: true [2020-06-22 06:49:27,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 06:49:27 BasicIcfg [2020-06-22 06:49:27,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 06:49:27,302 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 06:49:27,302 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 06:49:27,305 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 06:49:27,306 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:49:27,306 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 06:49:26" (1/5) ... [2020-06-22 06:49:27,307 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e6cfb8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 06:49:27, skipping insertion in model container [2020-06-22 06:49:27,307 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:49:27,307 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:49:26" (2/5) ... [2020-06-22 06:49:27,307 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e6cfb8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 06:49:27, skipping insertion in model container [2020-06-22 06:49:27,307 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:49:27,308 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:49:27" (3/5) ... [2020-06-22 06:49:27,308 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e6cfb8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 06:49:27, skipping insertion in model container [2020-06-22 06:49:27,308 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:49:27,308 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 06:49:27" (4/5) ... [2020-06-22 06:49:27,309 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e6cfb8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 06:49:27, skipping insertion in model container [2020-06-22 06:49:27,309 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:49:27,309 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 06:49:27" (5/5) ... [2020-06-22 06:49:27,310 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 06:49:27,336 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 06:49:27,336 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 06:49:27,337 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 06:49:27,337 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 06:49:27,337 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 06:49:27,337 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 06:49:27,337 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 06:49:27,337 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 06:49:27,337 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 06:49:27,340 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-22 06:49:27,357 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 06:49:27,358 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 06:49:27,358 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 06:49:27,363 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 06:49:27,363 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 06:49:27,363 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 06:49:27,363 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-22 06:49:27,364 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 06:49:27,364 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 06:49:27,364 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 06:49:27,364 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 06:49:27,365 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 06:49:27,370 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [21] ULTIMATE.startENTRY-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_1 v_ULTIMATE.start_main_~j~0_1) (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~M~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~N~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~a~0_1 v_ULTIMATE.start_main_~i~0_1) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_1, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~M~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~N~0, ULTIMATE.start_main_~b~0] 3#L23-2true [2020-06-22 06:49:27,370 INFO L796 eck$LassoCheckResult]: Loop: 3#L23-2true [26] L23-2-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_7 (+ v_ULTIMATE.start_main_~i~0_8 1)) (< v_ULTIMATE.start_main_~j~0_8 v_ULTIMATE.start_main_~N~0_7) (= v_ULTIMATE.start_main_~j~0_7 (+ v_ULTIMATE.start_main_~j~0_8 1)) (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1))) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~i~0] 3#L23-2true [2020-06-22 06:49:27,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:49:27,376 INFO L82 PathProgramCache]: Analyzing trace with hash 52, now seen corresponding path program 1 times [2020-06-22 06:49:27,378 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:49:27,379 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:49:27,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:49:27,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:49:27,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:49:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:49:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:49:27,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:49:27,451 INFO L82 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times [2020-06-22 06:49:27,451 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:49:27,451 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:49:27,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:49:27,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:49:27,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:49:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:49:27,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:49:27,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:49:27,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1638, now seen corresponding path program 1 times [2020-06-22 06:49:27,466 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:49:27,467 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:49:27,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:49:27,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:49:27,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:49:27,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:49:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:49:27,536 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 06:49:27,537 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 06:49:27,537 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 06:49:27,537 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 06:49:27,538 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 06:49:27,538 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:49:27,538 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 06:49:27,538 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 06:49:27,538 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 06:49:27,538 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 06:49:27,539 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 06:49:27,558 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 06:49:27,571 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 06:49:27,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 06:49:27,582 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 06:49:27,587 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 06:49:27,724 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 06:49:27,725 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:49:27,733 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 06:49:27,733 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 06:49:27,766 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 06:49:27,766 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:49:27,772 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 06:49:27,772 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 06:49:27,799 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 06:49:27,800 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:49:27,804 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 06:49:27,804 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:49:27,836 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 06:49:27,837 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 06:49:27,871 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 06:49:27,871 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=-1}, {ULTIMATE.start_main_~i~0=-5}, {ULTIMATE.start_main_~i~0=7}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:49:27,898 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 06:49:27,899 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:49:27,930 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 06:49:27,930 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 06:49:27,963 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 06:49:27,964 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=-1}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [4, 3, 1] Nus: [0, 1] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:49:27,991 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 06:49:27,991 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:49:28,024 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 06:49:28,025 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 06:49:28,222 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 06:49:28,225 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 06:49:28,225 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 06:49:28,225 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 06:49:28,225 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 06:49:28,225 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 06:49:28,225 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 06:49:28,226 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 06:49:28,226 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 06:49:28,226 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 06:49:28,226 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 06:49:28,226 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 06:49:28,228 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 06:49:28,232 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 06:49:28,236 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 06:49:28,241 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 06:49:28,245 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 06:49:28,326 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 06:49:28,331 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 06:49:28,333 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 06:49:28,335 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 06:49:28,335 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 06:49:28,335 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 06:49:28,335 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 06:49:28,340 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 06:49:28,340 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 06:49:28,348 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 06:49:28,349 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 06:49:28,349 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 06:49:28,350 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 06:49:28,350 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 06:49:28,350 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 06:49:28,350 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 06:49:28,351 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 06:49:28,351 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 06:49:28,356 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 06:49:28,356 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 06:49:28,357 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 06:49:28,357 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 06:49:28,357 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 06:49:28,357 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 06:49:28,359 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 06:49:28,360 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 06:49:28,368 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 06:49:28,368 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 06:49:28,369 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 06:49:28,369 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 06:49:28,369 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 06:49:28,369 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 06:49:28,370 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 06:49:28,370 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 06:49:28,370 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 06:49:28,374 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 06:49:28,374 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 06:49:28,375 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 06:49:28,375 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 06:49:28,375 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 06:49:28,376 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 06:49:28,376 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 06:49:28,376 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 06:49:28,377 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 06:49:28,382 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 06:49:28,387 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 06:49:28,387 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 06:49:28,390 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 06:49:28,390 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 06:49:28,391 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 06:49:28,391 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~N~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~N~0 Supporting invariants [] [2020-06-22 06:49:28,393 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 06:49:28,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:49:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:49:28,436 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 06:49:28,437 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:49:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:49:28,448 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 06:49:28,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:49:28,449 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 06:49:28,461 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 06:49:28,466 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 06:49:28,467 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 2 states. Second operand 2 states. [2020-06-22 06:49:28,495 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 2 states.. Second operand 2 states. Result 6 states and 11 transitions. Complement of second has 4 states. [2020-06-22 06:49:28,496 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 06:49:28,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 06:49:28,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-06-22 06:49:28,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 1 letters. [2020-06-22 06:49:28,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:49:28,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 1 letters. [2020-06-22 06:49:28,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:49:28,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 06:49:28,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:49:28,508 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 11 transitions. [2020-06-22 06:49:28,509 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 06:49:28,513 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 11 transitions. [2020-06-22 06:49:28,514 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-06-22 06:49:28,514 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 06:49:28,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 11 transitions. [2020-06-22 06:49:28,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 06:49:28,515 INFO L706 BuchiCegarLoop]: Abstraction has 6 states and 11 transitions. [2020-06-22 06:49:28,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 11 transitions. [2020-06-22 06:49:28,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2020-06-22 06:49:28,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-06-22 06:49:28,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2020-06-22 06:49:28,544 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 10 transitions. [2020-06-22 06:49:28,544 INFO L609 BuchiCegarLoop]: Abstraction has 5 states and 10 transitions. [2020-06-22 06:49:28,544 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 06:49:28,544 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 10 transitions. [2020-06-22 06:49:28,545 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 06:49:28,545 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 06:49:28,545 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 06:49:28,545 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 06:49:28,545 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 06:49:28,546 INFO L794 eck$LassoCheckResult]: Stem: 39#ULTIMATE.startENTRY [21] ULTIMATE.startENTRY-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_1 v_ULTIMATE.start_main_~j~0_1) (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~M~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~N~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~a~0_1 v_ULTIMATE.start_main_~i~0_1) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_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_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~M~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~N~0, ULTIMATE.start_main_~b~0] 40#L23-2 [27] L23-2-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_7 (+ v_ULTIMATE.start_main_~i~0_8 1)) (< v_ULTIMATE.start_main_~i~0_8 v_ULTIMATE.start_main_~M~0_7) (= v_ULTIMATE.start_main_~j~0_7 (+ v_ULTIMATE.start_main_~j~0_8 1)) (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1))) InVars {ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_7, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8} OutVars{ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_7, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~i~0] 36#L23-2 [2020-06-22 06:49:28,546 INFO L796 eck$LassoCheckResult]: Loop: 36#L23-2 [27] L23-2-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_7 (+ v_ULTIMATE.start_main_~i~0_8 1)) (< v_ULTIMATE.start_main_~i~0_8 v_ULTIMATE.start_main_~M~0_7) (= v_ULTIMATE.start_main_~j~0_7 (+ v_ULTIMATE.start_main_~j~0_8 1)) (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1))) InVars {ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_7, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8} OutVars{ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_7, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~i~0] 36#L23-2 [2020-06-22 06:49:28,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:49:28,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1639, now seen corresponding path program 1 times [2020-06-22 06:49:28,547 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:49:28,547 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:49:28,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:49:28,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:49:28,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:49:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:49:28,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:49:28,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:49:28,559 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 1 times [2020-06-22 06:49:28,559 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:49:28,559 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:49:28,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:49:28,561 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:49:28,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:49:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:49:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:49:28,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:49:28,567 INFO L82 PathProgramCache]: Analyzing trace with hash 50836, now seen corresponding path program 2 times [2020-06-22 06:49:28,567 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:49:28,567 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:49:28,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:49:28,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:49:28,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:49:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:49:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:49:28,607 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 06:49:28,607 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 06:49:28,607 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 06:49:28,608 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 06:49:28,608 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 06:49:28,608 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:49:28,608 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 06:49:28,608 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 06:49:28,608 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 06:49:28,608 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 06:49:28,608 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 06:49:28,610 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 06:49:28,614 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 06:49:28,617 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 06:49:28,620 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 06:49:28,623 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 06:49:28,686 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 06:49:28,686 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:49:28,690 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 06:49:28,691 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 06:49:28,718 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 06:49:28,719 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:49:28,725 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 06:49:28,725 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 06:49:28,755 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 06:49:28,755 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:49:28,761 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 06:49:28,761 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:49:28,793 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 06:49:28,793 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 06:49:28,827 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 06:49:28,827 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=-1}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [4, 3, 1] Nus: [0, 1] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:49:28,857 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 06:49:28,858 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:49:28,889 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 06:49:28,889 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 06:49:28,904 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 06:49:28,904 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=0} Honda state: {ULTIMATE.start_main_~j~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~j~0=0}, {ULTIMATE.start_main_~j~0=0}, {ULTIMATE.start_main_~j~0=1}] Lambdas: [0, 5, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/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 06:49:28,932 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 06:49:28,932 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:49:28,963 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 06:49:28,963 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 06:49:29,150 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 06:49:29,153 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 06:49:29,153 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 06:49:29,153 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 06:49:29,153 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 06:49:29,153 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 06:49:29,153 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 06:49:29,153 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 06:49:29,153 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 06:49:29,154 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 06:49:29,154 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 06:49:29,154 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 06:49:29,155 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 06:49:29,160 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 06:49:29,163 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 06:49:29,167 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 06:49:29,171 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 06:49:29,238 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 06:49:29,239 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 06:49:29,239 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 06:49:29,240 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 06:49:29,240 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 06:49:29,240 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 06:49:29,240 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 06:49:29,242 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 06:49:29,242 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 06:49:29,247 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 06:49:29,247 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 06:49:29,248 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 06:49:29,248 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 06:49:29,248 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 06:49:29,248 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 06:49:29,250 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 06:49:29,250 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 06:49:29,255 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 06:49:29,255 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 06:49:29,255 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 06:49:29,256 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 06:49:29,256 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 06:49:29,256 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 06:49:29,256 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 06:49:29,257 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 06:49:29,257 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 06:49:29,260 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 06:49:29,261 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 06:49:29,261 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 06:49:29,261 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 06:49:29,261 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 06:49:29,261 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 06:49:29,262 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 06:49:29,262 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 06:49:29,262 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 06:49:29,265 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 06:49:29,265 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 06:49:29,266 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 06:49:29,266 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 06:49:29,266 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 06:49:29,266 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 06:49:29,266 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 06:49:29,267 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 06:49:29,267 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 06:49:29,271 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 06:49:29,277 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 06:49:29,277 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 06:49:29,277 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 06:49:29,277 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 06:49:29,278 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 06:49:29,278 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~M~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~M~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-06-22 06:49:29,278 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 06:49:29,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:49:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:49:29,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 06:49:29,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:49:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:49:29,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 06:49:29,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:49:29,311 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 06:49:29,312 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 06:49:29,312 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 06:49:29,312 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 10 transitions. cyclomatic complexity: 7 Second operand 2 states. [2020-06-22 06:49:29,323 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 10 transitions. cyclomatic complexity: 7. Second operand 2 states. Result 8 states and 16 transitions. Complement of second has 4 states. [2020-06-22 06:49:29,323 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 06:49:29,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 06:49:29,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-06-22 06:49:29,324 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 1 letters. [2020-06-22 06:49:29,324 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:49:29,325 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 1 letters. [2020-06-22 06:49:29,325 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:49:29,325 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 06:49:29,325 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:49:29,327 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 16 transitions. [2020-06-22 06:49:29,328 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 06:49:29,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2020-06-22 06:49:29,328 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 06:49:29,328 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 06:49:29,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 06:49:29,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 06:49:29,328 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 06:49:29,328 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 06:49:29,328 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 06:49:29,329 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 06:49:29,329 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 06:49:29,329 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 06:49:29,329 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 06:49:29,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 06:49:29 BasicIcfg [2020-06-22 06:49:29,335 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 06:49:29,336 INFO L168 Benchmark]: Toolchain (without parser) took 2841.36 ms. Allocated memory was 649.6 MB in the beginning and 686.8 MB in the end (delta: 37.2 MB). Free memory was 563.6 MB in the beginning and 439.0 MB in the end (delta: 124.6 MB). Peak memory consumption was 161.8 MB. Max. memory is 50.3 GB. [2020-06-22 06:49:29,337 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 591.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 06:49:29,338 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.42 ms. Allocated memory was 649.6 MB in the beginning and 686.8 MB in the end (delta: 37.2 MB). Free memory was 563.6 MB in the beginning and 652.6 MB in the end (delta: -88.9 MB). Peak memory consumption was 29.3 MB. Max. memory is 50.3 GB. [2020-06-22 06:49:29,339 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.03 ms. Allocated memory is still 686.8 MB. Free memory was 652.6 MB in the beginning and 651.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 06:49:29,339 INFO L168 Benchmark]: Boogie Preprocessor took 19.86 ms. Allocated memory is still 686.8 MB. Free memory was 651.5 MB in the beginning and 648.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 50.3 GB. [2020-06-22 06:49:29,340 INFO L168 Benchmark]: RCFGBuilder took 219.56 ms. Allocated memory is still 686.8 MB. Free memory was 648.6 MB in the beginning and 634.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 50.3 GB. [2020-06-22 06:49:29,341 INFO L168 Benchmark]: BlockEncodingV2 took 80.49 ms. Allocated memory is still 686.8 MB. Free memory was 634.9 MB in the beginning and 629.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 06:49:29,341 INFO L168 Benchmark]: TraceAbstraction took 154.18 ms. Allocated memory is still 686.8 MB. Free memory was 629.6 MB in the beginning and 620.9 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. [2020-06-22 06:49:29,342 INFO L168 Benchmark]: BuchiAutomizer took 2033.34 ms. Allocated memory is still 686.8 MB. Free memory was 620.9 MB in the beginning and 439.0 MB in the end (delta: 181.8 MB). Peak memory consumption was 181.8 MB. Max. memory is 50.3 GB. [2020-06-22 06:49:29,346 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 6 locations, 7 edges - StatisticsResult: Encoded RCFG 2 locations, 3 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 591.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 290.42 ms. Allocated memory was 649.6 MB in the beginning and 686.8 MB in the end (delta: 37.2 MB). Free memory was 563.6 MB in the beginning and 652.6 MB in the end (delta: -88.9 MB). Peak memory consumption was 29.3 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 38.03 ms. Allocated memory is still 686.8 MB. Free memory was 652.6 MB in the beginning and 651.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.86 ms. Allocated memory is still 686.8 MB. Free memory was 651.5 MB in the beginning and 648.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 50.3 GB. * RCFGBuilder took 219.56 ms. Allocated memory is still 686.8 MB. Free memory was 648.6 MB in the beginning and 634.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 80.49 ms. Allocated memory is still 686.8 MB. Free memory was 634.9 MB in the beginning and 629.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 154.18 ms. Allocated memory is still 686.8 MB. Free memory was 629.6 MB in the beginning and 620.9 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2033.34 ms. Allocated memory is still 686.8 MB. Free memory was 620.9 MB in the beginning and 439.0 MB in the end (delta: 181.8 MB). Peak memory consumption was 181.8 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 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=2occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function -1 * j + N and consists of 3 locations. One nondeterministic module has affine ranking function M + -1 * i and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 2 SDtfs, 6 SDslu, 0 SDs, 0 SdLazy, 10 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax160 hnf100 lsp31 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 4 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 06:49:23.216 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 06:49:29.582 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check