YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 01:32:40,193 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 01:32:40,195 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 01:32:40,206 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 01:32:40,206 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 01:32:40,207 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 01:32:40,208 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 01:32:40,210 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 01:32:40,211 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 01:32:40,212 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 01:32:40,213 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 01:32:40,213 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 01:32:40,214 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 01:32:40,215 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 01:32:40,216 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 01:32:40,217 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 01:32:40,218 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 01:32:40,219 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 01:32:40,221 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 01:32:40,223 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 01:32:40,224 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 01:32:40,225 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 01:32:40,227 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 01:32:40,227 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 01:32:40,227 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 01:32:40,228 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 01:32:40,228 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 01:32:40,229 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 01:32:40,230 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 01:32:40,230 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 01:32:40,231 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 01:32:40,232 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 01:32:40,233 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 01:32:40,233 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 01:32:40,233 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 01:32:40,234 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 01:32:40,234 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 01:32:40,235 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 01:32:40,235 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 01:32:40,236 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 01:32:40,250 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 01:32:40,250 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 01:32:40,251 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 01:32:40,251 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 01:32:40,252 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 01:32:40,252 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 01:32:40,252 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 01:32:40,252 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 01:32:40,252 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 01:32:40,252 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 01:32:40,253 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 01:32:40,253 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 01:32:40,253 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 01:32:40,253 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 01:32:40,253 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:32:40,253 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 01:32:40,254 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 01:32:40,254 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 01:32:40,254 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 01:32:40,254 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 01:32:40,254 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 01:32:40,255 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 01:32:40,255 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 01:32:40,255 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 01:32:40,255 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 01:32:40,255 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 01:32:40,255 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 01:32:40,256 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 01:32:40,256 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 01:32:40,281 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 01:32:40,293 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 01:32:40,296 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 01:32:40,298 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 01:32:40,298 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 01:32:40,299 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 01:32:40,367 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/362023caaad947f0aaebd7aedfb57c94/FLAG0ceaf0a85 [2020-06-22 01:32:40,707 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 01:32:40,708 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 01:32:40,714 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/362023caaad947f0aaebd7aedfb57c94/FLAG0ceaf0a85 [2020-06-22 01:32:41,113 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/362023caaad947f0aaebd7aedfb57c94 [2020-06-22 01:32:41,125 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 01:32:41,126 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 01:32:41,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 01:32:41,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 01:32:41,131 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 01:32:41,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 01:32:41" (1/1) ... [2020-06-22 01:32:41,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cc623a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:41, skipping insertion in model container [2020-06-22 01:32:41,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 01:32:41" (1/1) ... [2020-06-22 01:32:41,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 01:32:41,160 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 01:32:41,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 01:32:41,315 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 01:32:41,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 01:32:41,401 INFO L195 MainTranslator]: Completed translation [2020-06-22 01:32:41,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:41 WrapperNode [2020-06-22 01:32:41,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 01:32:41,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 01:32:41,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 01:32:41,403 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 01:32:41,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:41" (1/1) ... [2020-06-22 01:32:41,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:41" (1/1) ... [2020-06-22 01:32:41,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 01:32:41,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 01:32:41,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 01:32:41,437 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 01:32:41,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:41" (1/1) ... [2020-06-22 01:32:41,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:41" (1/1) ... [2020-06-22 01:32:41,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:41" (1/1) ... [2020-06-22 01:32:41,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:41" (1/1) ... [2020-06-22 01:32:41,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:41" (1/1) ... [2020-06-22 01:32:41,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:41" (1/1) ... [2020-06-22 01:32:41,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:41" (1/1) ... [2020-06-22 01:32:41,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 01:32:41,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 01:32:41,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 01:32:41,456 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 01:32:41,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:41" (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 01:32:41,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 01:32:41,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 01:32:41,648 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 01:32:41,649 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 01:32:41,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:32:41 BoogieIcfgContainer [2020-06-22 01:32:41,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 01:32:41,651 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 01:32:41,651 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 01:32:41,653 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 01:32:41,654 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:32:41" (1/1) ... [2020-06-22 01:32:41,667 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-06-22 01:32:41,669 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 01:32:41,670 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 01:32:41,670 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 01:32:41,671 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 01:32:41,672 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 01:32:41,673 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 01:32:41,674 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 01:32:41,688 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 01:32:41,701 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 01:32:41,706 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 01:32:41,707 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 01:32:41,717 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 01:32:41,719 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-06-22 01:32:41,720 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 01:32:41,720 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 01:32:41,721 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 01:32:41,721 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 01:32:41,721 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-06-22 01:32:41,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:32:41 BasicIcfg [2020-06-22 01:32:41,722 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 01:32:41,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 01:32:41,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 01:32:41,726 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 01:32:41,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 01:32:41" (1/4) ... [2020-06-22 01:32:41,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45333c10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:32:41, skipping insertion in model container [2020-06-22 01:32:41,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:41" (2/4) ... [2020-06-22 01:32:41,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45333c10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:32:41, skipping insertion in model container [2020-06-22 01:32:41,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:32:41" (3/4) ... [2020-06-22 01:32:41,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45333c10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:32:41, skipping insertion in model container [2020-06-22 01:32:41,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:32:41" (4/4) ... [2020-06-22 01:32:41,729 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 01:32:41,740 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 01:32:41,748 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 01:32:41,765 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 01:32:41,793 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 01:32:41,794 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 01:32:41,794 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 01:32:41,794 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 01:32:41,795 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 01:32:41,795 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 01:32:41,795 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 01:32:41,795 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 01:32:41,795 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 01:32:41,809 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 01:32:41,814 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 01:32:41,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 01:32:41,864 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 20) no Hoare annotation was computed. [2020-06-22 01:32:41,865 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 01:32:41,865 INFO L451 ceAbstractionStarter]: At program point L14-2(lines 12 21) the Hoare annotation is: true [2020-06-22 01:32:41,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:32:41 BasicIcfg [2020-06-22 01:32:41,873 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 01:32:41,873 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 01:32:41,874 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 01:32:41,877 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 01:32:41,878 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:32:41,878 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 01:32:41" (1/5) ... [2020-06-22 01:32:41,879 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7825355f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 01:32:41, skipping insertion in model container [2020-06-22 01:32:41,879 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:32:41,879 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:41" (2/5) ... [2020-06-22 01:32:41,879 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7825355f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 01:32:41, skipping insertion in model container [2020-06-22 01:32:41,879 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:32:41,880 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:32:41" (3/5) ... [2020-06-22 01:32:41,880 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7825355f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:32:41, skipping insertion in model container [2020-06-22 01:32:41,880 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:32:41,880 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:32:41" (4/5) ... [2020-06-22 01:32:41,881 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7825355f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:32:41, skipping insertion in model container [2020-06-22 01:32:41,881 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:32:41,881 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:32:41" (5/5) ... [2020-06-22 01:32:41,882 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 01:32:41,908 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 01:32:41,908 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 01:32:41,908 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 01:32:41,909 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 01:32:41,909 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 01:32:41,909 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 01:32:41,909 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 01:32:41,909 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 01:32:41,910 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 01:32:41,913 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 01:32:41,929 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 01:32:41,929 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:32:41,930 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:32:41,935 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 01:32:41,935 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 01:32:41,935 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 01:32:41,935 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 01:32:41,936 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 01:32:41,936 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:32:41,936 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:32:41,936 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 01:32:41,936 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 01:32:41,941 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [25] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~random~0, ULTIMATE.start_main_~x~0] 4#L14-2true [2020-06-22 01:32:41,942 INFO L796 eck$LassoCheckResult]: Loop: 4#L14-2true [28] L14-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_7) (< 0 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~random~0_4 |v_ULTIMATE.start_main_#t~nondet2_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_4, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~random~0] 5#L14true [34] L14-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_9 (+ v_ULTIMATE.start_main_~y~0_10 (- 1))) (>= v_ULTIMATE.start_main_~random~0_7 42)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 4#L14-2true [2020-06-22 01:32:41,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:32:41,948 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2020-06-22 01:32:41,950 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:32:41,950 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:32:41,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:41,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:32:41,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:42,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:32:42,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1863, now seen corresponding path program 1 times [2020-06-22 01:32:42,018 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:32:42,019 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:32:42,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:42,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:32:42,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:42,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:42,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:32:42,033 INFO L82 PathProgramCache]: Analyzing trace with hash 54718, now seen corresponding path program 1 times [2020-06-22 01:32:42,033 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:32:42,033 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:32:42,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:42,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:32:42,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:42,099 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:32:42,100 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:32:42,101 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:32:42,101 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:32:42,101 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 01:32:42,101 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:32:42,101 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:32:42,101 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:32:42,101 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 01:32:42,102 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:32:42,102 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:32:42,121 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 01:32:42,136 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 01:32:42,145 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 01:32:42,149 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 01:32:42,153 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 01:32:42,284 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:32:42,284 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 01:32:42,290 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:32:42,290 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:32:42,302 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:32:42,302 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~random~0=43, ULTIMATE.start_main_#t~nondet2=43} Honda state: {ULTIMATE.start_main_~random~0=43, ULTIMATE.start_main_#t~nondet2=43} 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 01:32:42,330 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:32:42,330 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:32:42,357 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:32:42,357 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 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 01:32:42,362 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:32:42,362 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:32:42,388 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:32:42,389 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 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 01:32:42,398 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:32:42,399 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:32:42,425 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:32:42,426 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=1} Honda state: {ULTIMATE.start_main_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 01:32:42,430 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:32:42,430 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 01:32:42,460 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 01:32:42,460 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:32:42,489 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 01:32:42,492 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:32:42,492 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:32:42,492 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:32:42,492 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:32:42,492 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 01:32:42,492 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 01:32:42,492 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:32:42,492 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:32:42,493 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 01:32:42,493 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:32:42,493 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:32:42,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 01:32:42,498 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 01:32:42,503 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 01:32:42,506 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 01:32:42,513 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 01:32:42,605 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:32:42,611 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 01:32:42,613 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 01:32:42,614 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:32:42,614 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:32:42,615 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:32:42,615 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:32:42,619 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 01:32:42,619 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 01:32:42,628 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:32:42,629 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 01:32:42,630 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:32:42,630 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:32:42,630 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:32:42,630 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:32:42,633 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 01:32:42,633 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 01:32:42,641 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:32:42,642 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 01:32:42,642 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:32:42,643 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 01:32:42,643 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:32:42,643 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:32:42,644 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:32:42,644 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 01:32:42,644 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 01:32:42,646 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:32:42,646 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 01:32:42,647 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:32:42,647 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 01:32:42,647 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:32:42,647 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:32:42,647 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:32:42,648 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 01:32:42,648 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 01:32:42,654 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:32:42,655 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 01:32:42,655 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:32:42,655 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 01:32:42,656 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:32:42,656 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:32:42,656 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:32:42,656 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 01:32:42,657 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 01:32:42,664 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 01:32:42,668 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 01:32:42,668 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 01:32:42,670 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 01:32:42,670 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 01:32:42,670 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 01:32:42,671 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-06-22 01:32:42,672 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 01:32:42,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:32:42,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:32:42,708 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 01:32:42,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:32:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:32:42,720 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 01:32:42,720 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:32:42,737 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 01:32:42,761 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 01:32:42,766 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 01:32:42,767 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-06-22 01:32:42,796 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 7 states and 10 transitions. Complement of second has 4 states. [2020-06-22 01:32:42,797 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 01:32:42,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 01:32:42,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-06-22 01:32:42,801 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 01:32:42,802 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:32:42,802 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 01:32:42,802 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:32:42,803 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 01:32:42,803 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:32:42,809 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. [2020-06-22 01:32:42,810 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 01:32:42,813 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 10 transitions. [2020-06-22 01:32:42,814 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 01:32:42,815 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-06-22 01:32:42,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-06-22 01:32:42,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 01:32:42,816 INFO L706 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-06-22 01:32:42,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-06-22 01:32:42,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-06-22 01:32:42,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-06-22 01:32:42,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-06-22 01:32:42,845 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-06-22 01:32:42,845 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-06-22 01:32:42,845 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 01:32:42,845 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-06-22 01:32:42,846 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 01:32:42,846 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:32:42,846 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:32:42,846 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-22 01:32:42,847 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 01:32:42,847 INFO L794 eck$LassoCheckResult]: Stem: 43#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~random~0, ULTIMATE.start_main_~x~0] 44#L14-2 [28] L14-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_7) (< 0 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~random~0_4 |v_ULTIMATE.start_main_#t~nondet2_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_4, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~random~0] 49#L14 [31] L14-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~random~0_5) (< v_ULTIMATE.start_main_~random~0_6 42) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1))) (= v_ULTIMATE.start_main_~random~0_5 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~random~0, ULTIMATE.start_main_~x~0] 45#L14-2 [2020-06-22 01:32:42,847 INFO L796 eck$LassoCheckResult]: Loop: 45#L14-2 [28] L14-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_7) (< 0 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~random~0_4 |v_ULTIMATE.start_main_#t~nondet2_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_4, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~random~0] 46#L14 [34] L14-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_9 (+ v_ULTIMATE.start_main_~y~0_10 (- 1))) (>= v_ULTIMATE.start_main_~random~0_7 42)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 45#L14-2 [2020-06-22 01:32:42,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:32:42,848 INFO L82 PathProgramCache]: Analyzing trace with hash 54715, now seen corresponding path program 1 times [2020-06-22 01:32:42,848 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:32:42,848 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:32:42,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:42,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:32:42,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:42,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:42,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:32:42,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1863, now seen corresponding path program 2 times [2020-06-22 01:32:42,860 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:32:42,860 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:32:42,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:42,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:32:42,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:42,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:42,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:32:42,868 INFO L82 PathProgramCache]: Analyzing trace with hash 52582017, now seen corresponding path program 1 times [2020-06-22 01:32:42,868 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:32:42,868 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:32:42,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:42,870 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 01:32:42,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:42,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:42,907 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:32:42,907 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:32:42,907 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:32:42,907 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:32:42,907 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 01:32:42,908 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:32:42,908 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:32:42,908 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:32:42,908 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 01:32:42,908 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:32:42,908 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:32:42,910 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 01:32:42,913 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 01:32:42,920 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 01:32:42,924 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 01:32:42,927 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 01:32:43,013 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:32:43,014 INFO L412 LassoAnalysis]: Checking for nontermination... 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 01:32:43,022 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:32:43,022 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:32:43,051 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:32:43,051 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 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 01:32:43,058 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:32:43,058 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:32:43,064 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:32:43,065 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~random~0=43, ULTIMATE.start_main_#t~nondet2=43} Honda state: {ULTIMATE.start_main_~random~0=43, ULTIMATE.start_main_#t~nondet2=43} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 01:32:43,094 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:32:43,094 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:32:43,121 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:32:43,122 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 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 01:32:43,127 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:32:43,128 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:32:43,155 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:32:43,156 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=1} Honda state: {ULTIMATE.start_main_~x~0=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 01:32:43,163 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:32:43,163 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 01:32:43,197 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 01:32:43,198 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:32:43,227 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 01:32:43,229 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:32:43,229 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:32:43,229 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:32:43,229 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:32:43,229 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 01:32:43,229 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 01:32:43,230 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:32:43,230 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:32:43,230 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 01:32:43,230 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:32:43,230 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:32:43,232 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 01:32:43,238 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 01:32:43,251 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 01:32:43,254 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 01:32:43,257 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 01:32:43,320 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:32:43,320 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 01:32:43,321 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 01:32:43,322 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:32:43,322 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:32:43,322 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:32:43,322 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:32:43,324 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 01:32:43,324 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 01:32:43,328 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:32:43,329 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 01:32:43,329 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:32:43,329 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 01:32:43,330 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:32:43,330 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:32:43,330 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:32:43,331 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 01:32:43,331 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 01:32:43,335 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:32:43,335 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 01:32:43,336 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:32:43,336 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 01:32:43,336 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:32:43,337 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:32:43,337 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:32:43,338 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 01:32:43,338 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 01:32:43,339 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:32:43,339 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 01:32:43,340 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:32:43,340 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:32:43,340 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:32:43,341 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:32:43,342 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 01:32:43,342 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 01:32:43,347 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:32:43,348 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 01:32:43,349 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:32:43,349 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 01:32:43,349 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:32:43,349 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:32:43,349 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:32:43,350 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 01:32:43,350 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 01:32:43,354 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 01:32:43,357 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 01:32:43,357 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 01:32:43,357 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 01:32:43,358 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 01:32:43,358 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 01:32:43,358 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-06-22 01:32:43,358 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 01:32:43,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:32:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:32:43,388 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 01:32:43,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:32:43,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:32:43,394 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 01:32:43,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:32:43,405 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 01:32:43,416 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 01:32:43,417 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 01:32:43,417 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-06-22 01:32:43,439 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 9 states and 13 transitions. Complement of second has 4 states. [2020-06-22 01:32:43,439 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 01:32:43,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 01:32:43,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-06-22 01:32:43,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 01:32:43,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:32:43,441 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2020-06-22 01:32:43,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:32:43,441 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 4 letters. [2020-06-22 01:32:43,442 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:32:43,443 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 13 transitions. [2020-06-22 01:32:43,443 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 01:32:43,444 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 13 transitions. [2020-06-22 01:32:43,444 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 01:32:43,444 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-06-22 01:32:43,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2020-06-22 01:32:43,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 01:32:43,445 INFO L706 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2020-06-22 01:32:43,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2020-06-22 01:32:43,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 5. [2020-06-22 01:32:43,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-06-22 01:32:43,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2020-06-22 01:32:43,447 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-06-22 01:32:43,447 INFO L609 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-06-22 01:32:43,447 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 01:32:43,447 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2020-06-22 01:32:43,447 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 01:32:43,447 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:32:43,447 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:32:43,448 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 01:32:43,448 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 01:32:43,448 INFO L794 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~random~0, ULTIMATE.start_main_~x~0] 96#L14-2 [2020-06-22 01:32:43,448 INFO L796 eck$LassoCheckResult]: Loop: 96#L14-2 [28] L14-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_7) (< 0 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~random~0_4 |v_ULTIMATE.start_main_#t~nondet2_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_4, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~random~0] 98#L14 [31] L14-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~random~0_5) (< v_ULTIMATE.start_main_~random~0_6 42) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1))) (= v_ULTIMATE.start_main_~random~0_5 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~random~0, ULTIMATE.start_main_~x~0] 96#L14-2 [2020-06-22 01:32:43,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:32:43,449 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 2 times [2020-06-22 01:32:43,449 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:32:43,449 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:32:43,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:43,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:32:43,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:43,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:32:43,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1860, now seen corresponding path program 1 times [2020-06-22 01:32:43,456 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:32:43,456 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:32:43,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:43,458 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 01:32:43,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:43,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:32:43,463 INFO L82 PathProgramCache]: Analyzing trace with hash 54715, now seen corresponding path program 2 times [2020-06-22 01:32:43,464 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:32:43,464 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:32:43,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:43,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:32:43,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:43,516 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:32:43,517 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:32:43,517 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:32:43,517 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:32:43,517 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 01:32:43,517 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:32:43,517 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:32:43,517 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:32:43,517 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 01:32:43,518 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:32:43,518 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:32:43,519 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 01:32:43,526 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 01:32:43,530 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 01:32:43,547 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 01:32:43,554 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 01:32:43,622 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:32:43,623 INFO L412 LassoAnalysis]: Checking for nontermination... 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 01:32:43,626 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:32:43,626 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 01:32:43,656 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 01:32:43,656 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:32:43,686 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 01:32:43,689 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:32:43,689 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:32:43,689 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:32:43,689 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:32:43,689 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 01:32:43,689 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 01:32:43,689 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:32:43,689 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:32:43,690 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 01:32:43,690 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:32:43,690 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:32:43,691 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 01:32:43,699 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 01:32:43,705 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 01:32:43,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 01:32:43,709 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 01:32:43,770 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:32:43,771 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 01:32:43,771 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 01:32:43,772 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:32:43,772 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 01:32:43,772 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:32:43,772 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:32:43,772 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:32:43,773 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 01:32:43,773 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 01:32:43,778 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:32:43,779 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 01:32:43,779 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:32:43,779 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 01:32:43,780 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:32:43,780 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:32:43,780 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:32:43,780 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 01:32:43,781 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 01:32:43,783 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 01:32:43,786 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 01:32:43,786 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 01:32:43,786 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 01:32:43,786 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 01:32:43,786 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 01:32:43,787 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-06-22 01:32:43,787 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 01:32:43,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:32:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:32:43,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 01:32:43,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:32:43,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:32:43,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 01:32:43,822 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:32:43,832 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 01:32:43,842 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 01:32:43,843 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 01:32:43,843 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-06-22 01:32:43,875 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 11 states and 17 transitions. Complement of second has 4 states. [2020-06-22 01:32:43,876 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 01:32:43,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 01:32:43,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-06-22 01:32:43,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 01:32:43,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:32:43,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 01:32:43,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:32:43,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 01:32:43,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:32:43,879 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2020-06-22 01:32:43,880 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 01:32:43,880 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-06-22 01:32:43,880 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 01:32:43,881 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 01:32:43,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 01:32:43,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 01:32:43,881 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 01:32:43,881 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 01:32:43,881 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 01:32:43,881 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 01:32:43,881 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 01:32:43,881 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 01:32:43,882 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 01:32:43,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:32:43 BasicIcfg [2020-06-22 01:32:43,887 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 01:32:43,888 INFO L168 Benchmark]: Toolchain (without parser) took 2762.68 ms. Allocated memory was 649.6 MB in the beginning and 751.3 MB in the end (delta: 101.7 MB). Free memory was 564.1 MB in the beginning and 706.3 MB in the end (delta: -142.1 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 01:32:43,890 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 01:32:43,890 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.22 ms. Allocated memory was 649.6 MB in the beginning and 676.9 MB in the end (delta: 27.3 MB). Free memory was 564.1 MB in the beginning and 643.2 MB in the end (delta: -79.1 MB). Peak memory consumption was 30.4 MB. Max. memory is 50.3 GB. [2020-06-22 01:32:43,891 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.85 ms. Allocated memory is still 676.9 MB. Free memory was 643.2 MB in the beginning and 640.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. [2020-06-22 01:32:43,891 INFO L168 Benchmark]: Boogie Preprocessor took 18.47 ms. Allocated memory is still 676.9 MB. Free memory was 640.1 MB in the beginning and 638.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 01:32:43,892 INFO L168 Benchmark]: RCFGBuilder took 194.77 ms. Allocated memory is still 676.9 MB. Free memory was 638.8 MB in the beginning and 625.8 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. [2020-06-22 01:32:43,892 INFO L168 Benchmark]: BlockEncodingV2 took 71.00 ms. Allocated memory is still 676.9 MB. Free memory was 625.8 MB in the beginning and 620.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 01:32:43,893 INFO L168 Benchmark]: TraceAbstraction took 150.40 ms. Allocated memory is still 676.9 MB. Free memory was 620.4 MB in the beginning and 611.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 50.3 GB. [2020-06-22 01:32:43,893 INFO L168 Benchmark]: BuchiAutomizer took 2014.04 ms. Allocated memory was 676.9 MB in the beginning and 751.3 MB in the end (delta: 74.4 MB). Free memory was 609.9 MB in the beginning and 706.3 MB in the end (delta: -96.3 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 01:32:43,898 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 275.22 ms. Allocated memory was 649.6 MB in the beginning and 676.9 MB in the end (delta: 27.3 MB). Free memory was 564.1 MB in the beginning and 643.2 MB in the end (delta: -79.1 MB). Peak memory consumption was 30.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.85 ms. Allocated memory is still 676.9 MB. Free memory was 643.2 MB in the beginning and 640.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.47 ms. Allocated memory is still 676.9 MB. Free memory was 640.1 MB in the beginning and 638.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 194.77 ms. Allocated memory is still 676.9 MB. Free memory was 638.8 MB in the beginning and 625.8 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 71.00 ms. Allocated memory is still 676.9 MB. Free memory was 625.8 MB in the beginning and 620.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 150.40 ms. Allocated memory is still 676.9 MB. Free memory was 620.4 MB in the beginning and 611.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2014.04 ms. Allocated memory was 676.9 MB in the beginning and 751.3 MB in the end (delta: 74.4 MB). Free memory was 609.9 MB in the beginning and 706.3 MB in the end (delta: -96.3 MB). There was no memory consumed. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 12]: 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, 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 3 terminating modules (0 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function y and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 17 SDslu, 1 SDs, 0 SdLazy, 28 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax160 hnf100 lsp32 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf92 smp100 dnf100 smp100 tf112 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 01:32:37.898 ----------------------------------------------- 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 01:32:44.129 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check