YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 05:53:53,549 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 05:53:53,551 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 05:53:53,562 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 05:53:53,562 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 05:53:53,563 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 05:53:53,564 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 05:53:53,566 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 05:53:53,567 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 05:53:53,568 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 05:53:53,569 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 05:53:53,569 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 05:53:53,570 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 05:53:53,571 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 05:53:53,572 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 05:53:53,573 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 05:53:53,573 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 05:53:53,575 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 05:53:53,577 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 05:53:53,578 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 05:53:53,579 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 05:53:53,581 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 05:53:53,583 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 05:53:53,583 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 05:53:53,583 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 05:53:53,584 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 05:53:53,584 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 05:53:53,585 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 05:53:53,585 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 05:53:53,586 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 05:53:53,587 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 05:53:53,587 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 05:53:53,588 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 05:53:53,588 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 05:53:53,589 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 05:53:53,589 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 05:53:53,589 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 05:53:53,590 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 05:53:53,591 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 05:53:53,591 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 05:53:53,606 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 05:53:53,606 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 05:53:53,607 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 05:53:53,607 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 05:53:53,607 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 05:53:53,608 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 05:53:53,608 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 05:53:53,608 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 05:53:53,608 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 05:53:53,608 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 05:53:53,608 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 05:53:53,609 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 05:53:53,609 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 05:53:53,609 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 05:53:53,609 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:53:53,609 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 05:53:53,610 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 05:53:53,610 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 05:53:53,610 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 05:53:53,610 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 05:53:53,610 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 05:53:53,611 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 05:53:53,611 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 05:53:53,611 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 05:53:53,611 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 05:53:53,611 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 05:53:53,611 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 05:53:53,612 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 05:53:53,612 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 05:53:53,637 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 05:53:53,649 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 05:53:53,653 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 05:53:53,654 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 05:53:53,654 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 05:53:53,655 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 05:53:53,721 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/a3668a3eb8214524ae6ef78709df4003/FLAGd12ec5ba3 [2020-06-22 05:53:54,058 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 05:53:54,059 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 05:53:54,065 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/a3668a3eb8214524ae6ef78709df4003/FLAGd12ec5ba3 [2020-06-22 05:53:54,471 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/a3668a3eb8214524ae6ef78709df4003 [2020-06-22 05:53:54,483 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 05:53:54,484 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 05:53:54,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 05:53:54,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 05:53:54,489 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 05:53:54,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 05:53:54" (1/1) ... [2020-06-22 05:53:54,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5833fae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:53:54, skipping insertion in model container [2020-06-22 05:53:54,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 05:53:54" (1/1) ... [2020-06-22 05:53:54,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 05:53:54,517 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 05:53:54,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 05:53:54,676 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 05:53:54,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 05:53:54,759 INFO L195 MainTranslator]: Completed translation [2020-06-22 05:53:54,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:53:54 WrapperNode [2020-06-22 05:53:54,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 05:53:54,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 05:53:54,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 05:53:54,761 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 05:53:54,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:53:54" (1/1) ... [2020-06-22 05:53:54,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:53:54" (1/1) ... [2020-06-22 05:53:54,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 05:53:54,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 05:53:54,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 05:53:54,794 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 05:53:54,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:53:54" (1/1) ... [2020-06-22 05:53:54,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:53:54" (1/1) ... [2020-06-22 05:53:54,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:53:54" (1/1) ... [2020-06-22 05:53:54,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:53:54" (1/1) ... [2020-06-22 05:53:54,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:53:54" (1/1) ... [2020-06-22 05:53:54,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:53:54" (1/1) ... [2020-06-22 05:53:54,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:53:54" (1/1) ... [2020-06-22 05:53:54,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 05:53:54,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 05:53:54,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 05:53:54,814 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 05:53:54,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:53:54" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 05:53:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 05:53:54,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 05:53:55,018 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 05:53:55,018 INFO L286 CfgBuilder]: Removed 8 assue(true) statements. [2020-06-22 05:53:55,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:53:55 BoogieIcfgContainer [2020-06-22 05:53:55,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 05:53:55,020 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 05:53:55,020 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 05:53:55,022 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 05:53:55,023 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:53:55" (1/1) ... [2020-06-22 05:53:55,037 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2020-06-22 05:53:55,038 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 05:53:55,039 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 05:53:55,040 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 05:53:55,040 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 05:53:55,042 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 05:53:55,043 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 05:53:55,043 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 05:53:55,058 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 05:53:55,065 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 05:53:55,070 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-06-22 05:53:55,072 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 05:53:55,088 INFO L100 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2020-06-22 05:53:55,090 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 05:53:55,092 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 05:53:55,092 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 05:53:55,092 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 05:53:55,092 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 05:53:55,093 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-06-22 05:53:55,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:53:55 BasicIcfg [2020-06-22 05:53:55,093 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 05:53:55,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 05:53:55,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 05:53:55,098 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 05:53:55,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 05:53:54" (1/4) ... [2020-06-22 05:53:55,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@151e731d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:53:55, skipping insertion in model container [2020-06-22 05:53:55,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:53:54" (2/4) ... [2020-06-22 05:53:55,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@151e731d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:53:55, skipping insertion in model container [2020-06-22 05:53:55,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:53:55" (3/4) ... [2020-06-22 05:53:55,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@151e731d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:53:55, skipping insertion in model container [2020-06-22 05:53:55,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:53:55" (4/4) ... [2020-06-22 05:53:55,102 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 05:53:55,112 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 05:53:55,122 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 05:53:55,139 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 05:53:55,168 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 05:53:55,168 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 05:53:55,169 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 05:53:55,169 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 05:53:55,169 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 05:53:55,169 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 05:53:55,169 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 05:53:55,169 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 05:53:55,170 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 05:53:55,183 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 05:53:55,189 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 05:53:55,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 05:53:55,245 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 05:53:55,245 INFO L451 ceAbstractionStarter]: At program point L7-2(lines 7 10) the Hoare annotation is: true [2020-06-22 05:53:55,246 INFO L451 ceAbstractionStarter]: At program point L6-2(lines 6 13) the Hoare annotation is: true [2020-06-22 05:53:55,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:53:55 BasicIcfg [2020-06-22 05:53:55,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 05:53:55,255 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 05:53:55,255 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 05:53:55,258 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 05:53:55,259 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:53:55,259 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 05:53:54" (1/5) ... [2020-06-22 05:53:55,260 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@aa29918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 05:53:55, skipping insertion in model container [2020-06-22 05:53:55,260 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:53:55,260 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:53:54" (2/5) ... [2020-06-22 05:53:55,261 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@aa29918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 05:53:55, skipping insertion in model container [2020-06-22 05:53:55,261 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:53:55,261 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:53:55" (3/5) ... [2020-06-22 05:53:55,261 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@aa29918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:53:55, skipping insertion in model container [2020-06-22 05:53:55,261 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:53:55,262 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:53:55" (4/5) ... [2020-06-22 05:53:55,262 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@aa29918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:53:55, skipping insertion in model container [2020-06-22 05:53:55,262 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:53:55,262 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:53:55" (5/5) ... [2020-06-22 05:53:55,264 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 05:53:55,291 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 05:53:55,292 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 05:53:55,292 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 05:53:55,292 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 05:53:55,293 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 05:53:55,293 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 05:53:55,293 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 05:53:55,293 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 05:53:55,293 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 05:53:55,297 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 05:53:55,314 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 05:53:55,314 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:53:55,314 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:53:55,320 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 05:53:55,320 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 05:53:55,320 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 05:53:55,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 05:53:55,321 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 05:53:55,321 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:53:55,321 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:53:55,321 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 05:53:55,321 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 05:53:55,326 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [36] ULTIMATE.startENTRY-->L6-2: Formula: (and (= |v_ULTIMATE.start_test_fun_#in~z_1| |v_ULTIMATE.start_main_#t~nondet2_1|) (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= v_ULTIMATE.start_test_fun_~z_1 |v_ULTIMATE.start_test_fun_#in~z_1|) (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_test_fun_#in~z=|v_ULTIMATE.start_test_fun_#in~z_1|, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_1, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_test_fun_#in~z, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_~z, ULTIMATE.start_test_fun_#in~x, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_main_#t~ret3] 5#L6-2true [2020-06-22 05:53:55,327 INFO L796 eck$LassoCheckResult]: Loop: 5#L6-2true [43] L6-2-->L7-2: Formula: (< v_ULTIMATE.start_test_fun_~z_6 v_ULTIMATE.start_test_fun_~x_6) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_6} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_6} AuxVars[] AssignedVars[] 3#L7-2true [48] L7-2-->L6-2: Formula: (and (= v_ULTIMATE.start_test_fun_~x_8 (+ v_ULTIMATE.start_test_fun_~x_9 (- 1))) (<= v_ULTIMATE.start_test_fun_~y_6 v_ULTIMATE.start_test_fun_~z_8) (= v_ULTIMATE.start_test_fun_~c~0_9 (+ v_ULTIMATE.start_test_fun_~c~0_10 1))) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_6, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_9, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_10, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_8} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_6, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_8, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_9, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_8} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~x, ULTIMATE.start_test_fun_~c~0] 5#L6-2true [2020-06-22 05:53:55,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:53:55,333 INFO L82 PathProgramCache]: Analyzing trace with hash 67, now seen corresponding path program 1 times [2020-06-22 05:53:55,335 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:53:55,336 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:53:55,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:53:55,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:53:55,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:53:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:53:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:53:55,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:53:55,406 INFO L82 PathProgramCache]: Analyzing trace with hash 2342, now seen corresponding path program 1 times [2020-06-22 05:53:55,406 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:53:55,406 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:53:55,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:53:55,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:53:55,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:53:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:53:55,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:53:55,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:53:55,420 INFO L82 PathProgramCache]: Analyzing trace with hash 65768, now seen corresponding path program 1 times [2020-06-22 05:53:55,420 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:53:55,420 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:53:55,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:53:55,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:53:55,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:53:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:53:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:53:55,478 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:53:55,479 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:53:55,479 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:53:55,479 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:53:55,479 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:53:55,480 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:53:55,480 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:53:55,480 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:53:55,480 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 05:53:55,480 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:53:55,480 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:53:55,499 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 05:53:55,509 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 05:53:55,569 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:53:55,570 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:53:55,577 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:53:55,578 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:53:55,612 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:53:55,613 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:53:55,634 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:53:55,635 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_fun_~c~0=0} Honda state: {ULTIMATE.start_test_fun_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_test_fun_~c~0=-4}, {ULTIMATE.start_test_fun_~c~0=7}, {ULTIMATE.start_test_fun_~c~0=-2}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:53:55,663 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:53:55,663 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:53:55,695 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:53:55,696 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:53:56,051 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 05:53:56,053 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:53:56,054 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:53:56,054 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:53:56,054 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:53:56,054 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 05:53:56,054 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 05:53:56,054 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:53:56,054 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:53:56,054 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 05:53:56,055 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:53:56,055 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:53:56,056 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 05:53:56,060 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 05:53:56,130 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:53:56,136 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 05:53:56,138 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 05:53:56,139 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:53:56,139 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:53:56,140 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:53:56,140 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:53:56,140 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:53:56,143 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:53:56,143 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:53:56,150 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:53:56,151 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 05:53:56,152 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:53:56,152 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:53:56,152 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:53:56,152 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:53:56,152 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:53:56,154 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:53:56,154 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:53:56,161 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 05:53:56,168 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 05:53:56,168 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 05:53:56,170 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 05:53:56,170 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 05:53:56,170 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 05:53:56,171 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~x, ULTIMATE.start_test_fun_~z) = 1*ULTIMATE.start_test_fun_~x - 1*ULTIMATE.start_test_fun_~z Supporting invariants [] [2020-06-22 05:53:56,172 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 05:53:56,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:53:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:53:56,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 05:53:56,228 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:53:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:53:56,239 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 05:53:56,239 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:53:56,254 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 05:53:56,278 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 05:53:56,283 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 05:53:56,285 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-06-22 05:53:56,312 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 6 states and 9 transitions. Complement of second has 4 states. [2020-06-22 05:53:56,312 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 05:53:56,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 05:53:56,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-06-22 05:53:56,316 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 05:53:56,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:53:56,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 05:53:56,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:53:56,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 05:53:56,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:53:56,324 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 9 transitions. [2020-06-22 05:53:56,325 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 05:53:56,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 9 transitions. [2020-06-22 05:53:56,329 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-06-22 05:53:56,330 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 05:53:56,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 9 transitions. [2020-06-22 05:53:56,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 05:53:56,332 INFO L706 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-06-22 05:53:56,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 9 transitions. [2020-06-22 05:53:56,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2020-06-22 05:53:56,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-06-22 05:53:56,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-06-22 05:53:56,360 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-06-22 05:53:56,360 INFO L609 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-06-22 05:53:56,360 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 05:53:56,360 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 8 transitions. [2020-06-22 05:53:56,361 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 05:53:56,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:53:56,361 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:53:56,361 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 05:53:56,361 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 05:53:56,362 INFO L794 eck$LassoCheckResult]: Stem: 45#ULTIMATE.startENTRY [36] ULTIMATE.startENTRY-->L6-2: Formula: (and (= |v_ULTIMATE.start_test_fun_#in~z_1| |v_ULTIMATE.start_main_#t~nondet2_1|) (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= v_ULTIMATE.start_test_fun_~z_1 |v_ULTIMATE.start_test_fun_#in~z_1|) (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_test_fun_#in~z=|v_ULTIMATE.start_test_fun_#in~z_1|, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_1, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_test_fun_#in~z, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_~z, ULTIMATE.start_test_fun_#in~x, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_main_#t~ret3] 46#L6-2 [43] L6-2-->L7-2: Formula: (< v_ULTIMATE.start_test_fun_~z_6 v_ULTIMATE.start_test_fun_~x_6) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_6} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_6} AuxVars[] AssignedVars[] 42#L7-2 [2020-06-22 05:53:56,362 INFO L796 eck$LassoCheckResult]: Loop: 42#L7-2 [35] L7-2-->L7-2: Formula: (and (= v_ULTIMATE.start_test_fun_~y_4 (+ v_ULTIMATE.start_test_fun_~y_5 (- 1))) (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) (< v_ULTIMATE.start_test_fun_~z_4 v_ULTIMATE.start_test_fun_~y_5)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_5, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_4} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_test_fun_~c~0] 42#L7-2 [2020-06-22 05:53:56,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:53:56,363 INFO L82 PathProgramCache]: Analyzing trace with hash 2120, now seen corresponding path program 1 times [2020-06-22 05:53:56,363 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:53:56,363 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:53:56,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:53:56,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:53:56,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:53:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:53:56,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:53:56,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:53:56,372 INFO L82 PathProgramCache]: Analyzing trace with hash 66, now seen corresponding path program 1 times [2020-06-22 05:53:56,372 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:53:56,372 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:53:56,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:53:56,373 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:53:56,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:53:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:53:56,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:53:56,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:53:56,378 INFO L82 PathProgramCache]: Analyzing trace with hash 65755, now seen corresponding path program 1 times [2020-06-22 05:53:56,378 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:53:56,378 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:53:56,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:53:56,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:53:56,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:53:56,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:53:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:53:56,419 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:53:56,419 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:53:56,420 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:53:56,420 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:53:56,420 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:53:56,420 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:53:56,420 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:53:56,420 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:53:56,420 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 05:53:56,420 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:53:56,421 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:53:56,422 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 05:53:56,432 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 05:53:56,479 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:53:56,480 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:53:56,491 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:53:56,491 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:53:56,529 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:53:56,530 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:53:56,789 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 05:53:56,791 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:53:56,792 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:53:56,792 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:53:56,792 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:53:56,792 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 05:53:56,792 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 05:53:56,792 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:53:56,792 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:53:56,793 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 05:53:56,793 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:53:56,793 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:53:56,794 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 05:53:56,801 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 05:53:56,829 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:53:56,829 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 05:53:56,830 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 05:53:56,831 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:53:56,831 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:53:56,831 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:53:56,831 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:53:56,832 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:53:56,832 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:53:56,833 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:53:56,839 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 05:53:56,843 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 05:53:56,844 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 05:53:56,844 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 05:53:56,844 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 05:53:56,844 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 05:53:56,845 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~y, ULTIMATE.start_test_fun_~z) = 1*ULTIMATE.start_test_fun_~y - 1*ULTIMATE.start_test_fun_~z Supporting invariants [] [2020-06-22 05:53:56,845 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 05:53:56,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:53:56,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:53:56,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 05:53:56,874 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:53:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:53:56,887 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 05:53:56,887 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:53:56,887 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 05:53:56,888 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 05:53:56,888 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 05:53:56,888 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-06-22 05:53:56,901 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 11 states and 16 transitions. Complement of second has 6 states. [2020-06-22 05:53:56,902 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 05:53:56,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 05:53:56,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2020-06-22 05:53:56,903 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2020-06-22 05:53:56,903 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:53:56,904 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 3 letters. Loop has 1 letters. [2020-06-22 05:53:56,904 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:53:56,904 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 05:53:56,904 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:53:56,906 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2020-06-22 05:53:56,907 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 05:53:56,907 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-06-22 05:53:56,907 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 05:53:56,907 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 05:53:56,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 05:53:56,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 05:53:56,907 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:53:56,907 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:53:56,908 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:53:56,908 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 05:53:56,908 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 05:53:56,908 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 05:53:56,908 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 05:53:56,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:53:56 BasicIcfg [2020-06-22 05:53:56,914 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 05:53:56,914 INFO L168 Benchmark]: Toolchain (without parser) took 2431.19 ms. Allocated memory was 649.6 MB in the beginning and 694.7 MB in the end (delta: 45.1 MB). Free memory was 560.9 MB in the beginning and 515.7 MB in the end (delta: 45.2 MB). Peak memory consumption was 90.3 MB. Max. memory is 50.3 GB. [2020-06-22 05:53:56,916 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 649.6 MB. Free memory is still 580.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 05:53:56,917 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.63 ms. Allocated memory was 649.6 MB in the beginning and 694.7 MB in the end (delta: 45.1 MB). Free memory was 559.8 MB in the beginning and 661.6 MB in the end (delta: -101.8 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. [2020-06-22 05:53:56,918 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.62 ms. Allocated memory is still 694.7 MB. Free memory was 661.6 MB in the beginning and 660.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 05:53:56,918 INFO L168 Benchmark]: Boogie Preprocessor took 19.07 ms. Allocated memory is still 694.7 MB. Free memory was 660.5 MB in the beginning and 657.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. [2020-06-22 05:53:56,919 INFO L168 Benchmark]: RCFGBuilder took 206.17 ms. Allocated memory is still 694.7 MB. Free memory was 657.7 MB in the beginning and 644.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 50.3 GB. [2020-06-22 05:53:56,920 INFO L168 Benchmark]: BlockEncodingV2 took 73.47 ms. Allocated memory is still 694.7 MB. Free memory was 644.1 MB in the beginning and 638.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 05:53:56,920 INFO L168 Benchmark]: TraceAbstraction took 159.63 ms. Allocated memory is still 694.7 MB. Free memory was 637.6 MB in the beginning and 627.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 50.3 GB. [2020-06-22 05:53:56,921 INFO L168 Benchmark]: BuchiAutomizer took 1659.43 ms. Allocated memory is still 694.7 MB. Free memory was 627.6 MB in the beginning and 515.7 MB in the end (delta: 112.0 MB). Peak memory consumption was 112.0 MB. Max. memory is 50.3 GB. [2020-06-22 05:53:56,925 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 12 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 649.6 MB. Free memory is still 580.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 274.63 ms. Allocated memory was 649.6 MB in the beginning and 694.7 MB in the end (delta: 45.1 MB). Free memory was 559.8 MB in the beginning and 661.6 MB in the end (delta: -101.8 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.62 ms. Allocated memory is still 694.7 MB. Free memory was 661.6 MB in the beginning and 660.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.07 ms. Allocated memory is still 694.7 MB. Free memory was 660.5 MB in the beginning and 657.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. * RCFGBuilder took 206.17 ms. Allocated memory is still 694.7 MB. Free memory was 657.7 MB in the beginning and 644.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 73.47 ms. Allocated memory is still 694.7 MB. Free memory was 644.1 MB in the beginning and 638.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 159.63 ms. Allocated memory is still 694.7 MB. Free memory was 637.6 MB in the beginning and 627.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1659.43 ms. Allocated memory is still 694.7 MB. Free memory was 627.6 MB in the beginning and 515.7 MB in the end (delta: 112.0 MB). Peak memory consumption was 112.0 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: 7]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 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=3occurred 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function x + -1 * z and consists of 3 locations. One nondeterministic module has affine ranking function y + -1 * z and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. 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: 8 SDtfs, 13 SDslu, 0 SDs, 0 SdLazy, 12 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp69 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 05:53:51.227 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 05:53:57.158 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check