YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 08:16:10,253 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 08:16:10,255 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 08:16:10,266 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 08:16:10,266 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 08:16:10,267 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 08:16:10,269 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 08:16:10,270 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 08:16:10,271 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 08:16:10,272 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 08:16:10,273 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 08:16:10,273 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 08:16:10,274 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 08:16:10,275 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 08:16:10,276 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 08:16:10,277 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 08:16:10,277 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 08:16:10,279 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 08:16:10,281 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 08:16:10,282 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 08:16:10,283 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 08:16:10,284 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 08:16:10,286 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 08:16:10,286 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 08:16:10,286 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 08:16:10,287 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 08:16:10,288 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 08:16:10,288 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 08:16:10,289 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 08:16:10,289 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 08:16:10,290 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 08:16:10,292 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 08:16:10,292 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 08:16:10,293 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 08:16:10,293 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 08:16:10,293 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 08:16:10,294 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 08:16:10,295 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 08:16:10,295 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 08:16:10,295 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 08:16:10,310 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 08:16:10,310 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 08:16:10,311 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 08:16:10,311 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 08:16:10,311 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 08:16:10,311 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 08:16:10,312 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 08:16:10,312 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 08:16:10,312 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 08:16:10,312 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 08:16:10,312 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 08:16:10,312 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 08:16:10,312 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 08:16:10,313 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 08:16:10,313 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:10,313 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 08:16:10,313 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 08:16:10,313 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 08:16:10,313 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 08:16:10,314 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 08:16:10,314 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 08:16:10,314 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 08:16:10,314 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 08:16:10,314 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 08:16:10,314 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 08:16:10,315 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 08:16:10,315 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 08:16:10,315 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 08:16:10,315 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 08:16:10,340 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 08:16:10,353 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 08:16:10,356 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 08:16:10,358 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 08:16:10,358 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 08:16:10,359 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 08:16:10,431 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/7e8d5bb71d19483f87312c73fc043631/FLAGd872a263f [2020-06-22 08:16:10,766 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 08:16:10,767 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 08:16:10,774 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/7e8d5bb71d19483f87312c73fc043631/FLAGd872a263f [2020-06-22 08:16:11,168 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/7e8d5bb71d19483f87312c73fc043631 [2020-06-22 08:16:11,179 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 08:16:11,181 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 08:16:11,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 08:16:11,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 08:16:11,186 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 08:16:11,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62f82fb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11, skipping insertion in model container [2020-06-22 08:16:11,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 08:16:11,216 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 08:16:11,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 08:16:11,376 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 08:16:11,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 08:16:11,475 INFO L195 MainTranslator]: Completed translation [2020-06-22 08:16:11,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11 WrapperNode [2020-06-22 08:16:11,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 08:16:11,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 08:16:11,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 08:16:11,477 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 08:16:11,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,493 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,514 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 08:16:11,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 08:16:11,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 08:16:11,515 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 08:16:11,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 08:16:11,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 08:16:11,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 08:16:11,536 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 08:16:11,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11" (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 08:16:11,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 08:16:11,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 08:16:11,749 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 08:16:11,749 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 08:16:11,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:16:11 BoogieIcfgContainer [2020-06-22 08:16:11,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 08:16:11,751 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 08:16:11,751 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 08:16:11,753 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 08:16:11,754 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,770 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-06-22 08:16:11,771 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 08:16:11,772 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 08:16:11,773 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 08:16:11,773 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 08:16:11,775 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 08:16:11,776 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 08:16:11,776 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 08:16:11,792 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 08:16:11,808 INFO L200 BlockEncoder]: SBE split 2 edges [2020-06-22 08:16:11,813 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 08:16:11,815 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 08:16:11,825 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 08:16:11,827 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-06-22 08:16:11,828 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 08:16:11,829 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 08:16:11,829 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 08:16:11,829 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 08:16:11,829 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 7 edges [2020-06-22 08:16:11,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 08:16:11 BasicIcfg [2020-06-22 08:16:11,830 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 08:16:11,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 08:16:11,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 08:16:11,834 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 08:16:11,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 08:16:11" (1/4) ... [2020-06-22 08:16:11,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2698c320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 08:16:11, skipping insertion in model container [2020-06-22 08:16:11,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11" (2/4) ... [2020-06-22 08:16:11,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2698c320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 08:16:11, skipping insertion in model container [2020-06-22 08:16:11,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:16:11" (3/4) ... [2020-06-22 08:16:11,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2698c320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 08:16:11, skipping insertion in model container [2020-06-22 08:16:11,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 08:16:11" (4/4) ... [2020-06-22 08:16:11,838 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 08:16:11,847 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 08:16:11,855 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 08:16:11,871 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 08:16:11,900 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 08:16:11,901 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 08:16:11,901 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 08:16:11,902 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 08:16:11,902 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 08:16:11,902 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 08:16:11,902 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 08:16:11,902 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 08:16:11,902 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 08:16:11,916 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-06-22 08:16:11,922 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 08:16:11,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-06-22 08:16:11,974 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 08:16:11,975 INFO L451 ceAbstractionStarter]: At program point L27-1(lines 21 36) the Hoare annotation is: true [2020-06-22 08:16:11,975 INFO L448 ceAbstractionStarter]: For program point L22(lines 22 26) no Hoare annotation was computed. [2020-06-22 08:16:11,975 INFO L448 ceAbstractionStarter]: For program point L22-2(lines 21 36) no Hoare annotation was computed. [2020-06-22 08:16:11,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 08:16:11 BasicIcfg [2020-06-22 08:16:11,983 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 08:16:11,984 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 08:16:11,984 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 08:16:11,988 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 08:16:11,988 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:16:11,989 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 08:16:11" (1/5) ... [2020-06-22 08:16:11,989 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54b38a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 08:16:11, skipping insertion in model container [2020-06-22 08:16:11,990 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:16:11,990 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11" (2/5) ... [2020-06-22 08:16:11,990 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54b38a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 08:16:11, skipping insertion in model container [2020-06-22 08:16:11,990 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:16:11,990 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:16:11" (3/5) ... [2020-06-22 08:16:11,991 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54b38a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 08:16:11, skipping insertion in model container [2020-06-22 08:16:11,991 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:16:11,991 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 08:16:11" (4/5) ... [2020-06-22 08:16:11,991 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54b38a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 08:16:11, skipping insertion in model container [2020-06-22 08:16:11,992 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:16:11,992 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 08:16:11" (5/5) ... [2020-06-22 08:16:11,993 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 08:16:12,022 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 08:16:12,023 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 08:16:12,023 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 08:16:12,023 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 08:16:12,024 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 08:16:12,024 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 08:16:12,024 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 08:16:12,024 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 08:16:12,024 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 08:16:12,027 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 08:16:12,044 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 08:16:12,045 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:16:12,045 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:16:12,051 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 08:16:12,052 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 08:16:12,052 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 08:16:12,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 08:16:12,052 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 08:16:12,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:16:12,053 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:16:12,053 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 08:16:12,053 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 08:16:12,058 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [34] ULTIMATE.startENTRY-->L27-1: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 3#L27-1true [2020-06-22 08:16:12,059 INFO L796 eck$LassoCheckResult]: Loop: 3#L27-1true [32] L27-1-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_11) (< 0 v_ULTIMATE.start_main_~y~0_11)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 5#L22true [35] L22-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_8 v_ULTIMATE.start_main_~y~0_12) (< v_ULTIMATE.start_main_~y~0_12 v_ULTIMATE.start_main_~x~0_12)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 6#L22-2true [40] L22-2-->L27-1: Formula: (and (= v_ULTIMATE.start_main_~z~0_6 (+ v_ULTIMATE.start_main_~z~0_7 v_ULTIMATE.start_main_~x~0_8)) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~z~0_7 (- 1))) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_9)) (= 0 |v_ULTIMATE.start_main_#t~nondet2_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 3#L27-1true [2020-06-22 08:16:12,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:12,064 INFO L82 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2020-06-22 08:16:12,066 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:16:12,067 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:16:12,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:12,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:16:12,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:12,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:12,141 INFO L82 PathProgramCache]: Analyzing trace with hash 61668, now seen corresponding path program 1 times [2020-06-22 08:16:12,141 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:16:12,141 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:16:12,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:12,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:16:12,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:12,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:12,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1968292, now seen corresponding path program 1 times [2020-06-22 08:16:12,164 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:16:12,164 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:16:12,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:12,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:16:12,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:12,272 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:16:12,273 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:16:12,274 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:16:12,274 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:16:12,274 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 08:16:12,274 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:12,274 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:16:12,274 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:16:12,275 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 08:16:12,275 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:16:12,275 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:16:12,298 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 08:16:12,307 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 08:16:12,310 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 08:16:12,329 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 08:16:12,432 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:16:12,433 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 08:16:12,439 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:16:12,439 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:16:12,472 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:16:12,472 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:12,479 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:16:12,479 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:16:12,507 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:16:12,507 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:12,515 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:16:12,516 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:12,553 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:16:12,553 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:16:12,592 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 08:16:12,595 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:16:12,595 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:16:12,595 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:16:12,595 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:16:12,595 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 08:16:12,595 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 08:16:12,595 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:16:12,596 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:16:12,596 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 08:16:12,596 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:16:12,596 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:16:12,598 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 08:16:12,603 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 08:16:12,606 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 08:16:12,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 08:16:12,697 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:16:12,703 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 08:16:12,704 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 08:16:12,706 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:16:12,706 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:16:12,706 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:16:12,707 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:16:12,711 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:16:12,711 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:16:12,719 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:16:12,719 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 08:16:12,720 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:16:12,720 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:16:12,720 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:16:12,721 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:16:12,723 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:16:12,723 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:16:12,730 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:16:12,731 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 08:16:12,731 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:16:12,732 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:16:12,732 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:16:12,732 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:16:12,733 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:16:12,733 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:16:12,733 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:16:12,735 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:16:12,735 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 08:16:12,736 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:16:12,736 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:16:12,736 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:16:12,736 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:16:12,736 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:16:12,737 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:16:12,738 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:16:12,747 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 08:16:12,753 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 08:16:12,754 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 08:16:12,756 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 08:16:12,756 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 08:16:12,756 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 08:16:12,757 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 08:16:12,758 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 08:16:12,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:16:12,793 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 08:16:12,794 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:16:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:16:12,806 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 08:16:12,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:16:12,838 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 08:16:12,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:12,895 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-06-22 08:16:12,895 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-06-22 08:16:12,900 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2020-06-22 08:16:12,902 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 4 states. [2020-06-22 08:16:13,021 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 4 states. Result 13 states and 26 transitions. Complement of second has 10 states. [2020-06-22 08:16:13,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-06-22 08:16:13,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 08:16:13,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2020-06-22 08:16:13,027 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 08:16:13,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:16:13,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 08:16:13,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:16:13,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 08:16:13,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:16:13,037 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 26 transitions. [2020-06-22 08:16:13,038 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 08:16:13,043 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 10 states and 18 transitions. [2020-06-22 08:16:13,044 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 08:16:13,044 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-06-22 08:16:13,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 18 transitions. [2020-06-22 08:16:13,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 08:16:13,045 INFO L706 BuchiCegarLoop]: Abstraction has 10 states and 18 transitions. [2020-06-22 08:16:13,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 18 transitions. [2020-06-22 08:16:13,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-06-22 08:16:13,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-06-22 08:16:13,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 18 transitions. [2020-06-22 08:16:13,078 INFO L729 BuchiCegarLoop]: Abstraction has 10 states and 18 transitions. [2020-06-22 08:16:13,078 INFO L609 BuchiCegarLoop]: Abstraction has 10 states and 18 transitions. [2020-06-22 08:16:13,078 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 08:16:13,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 18 transitions. [2020-06-22 08:16:13,079 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 08:16:13,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:16:13,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:16:13,080 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-06-22 08:16:13,080 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 08:16:13,080 INFO L794 eck$LassoCheckResult]: Stem: 72#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L27-1: 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_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~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_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 73#L27-1 [32] L27-1-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_11) (< 0 v_ULTIMATE.start_main_~y~0_11)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 71#L22 [42] L22-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_9 v_ULTIMATE.start_main_~x~0_13) (>= v_ULTIMATE.start_main_~y~0_13 v_ULTIMATE.start_main_~x~0_13)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 74#L22-2 [47] L22-2-->L27-1: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~z~0_5 (- 1))) (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~x~0_7)) (= v_ULTIMATE.start_main_~z~0_4 (+ v_ULTIMATE.start_main_~z~0_5 v_ULTIMATE.start_main_~y~0_6)) (< 0 |v_ULTIMATE.start_main_#t~nondet2_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_5, 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_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 67#L27-1 [2020-06-22 08:16:13,081 INFO L796 eck$LassoCheckResult]: Loop: 67#L27-1 [32] L27-1-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_11) (< 0 v_ULTIMATE.start_main_~y~0_11)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 68#L22 [35] L22-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_8 v_ULTIMATE.start_main_~y~0_12) (< v_ULTIMATE.start_main_~y~0_12 v_ULTIMATE.start_main_~x~0_12)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 76#L22-2 [40] L22-2-->L27-1: Formula: (and (= v_ULTIMATE.start_main_~z~0_6 (+ v_ULTIMATE.start_main_~z~0_7 v_ULTIMATE.start_main_~x~0_8)) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~z~0_7 (- 1))) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_9)) (= 0 |v_ULTIMATE.start_main_#t~nondet2_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 67#L27-1 [2020-06-22 08:16:13,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:13,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1968516, now seen corresponding path program 1 times [2020-06-22 08:16:13,081 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:16:13,081 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:16:13,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:13,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:16:13,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:13,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:13,099 INFO L82 PathProgramCache]: Analyzing trace with hash 61668, now seen corresponding path program 2 times [2020-06-22 08:16:13,099 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:16:13,099 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:16:13,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:13,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:16:13,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:13,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:13,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:13,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:13,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1485450111, now seen corresponding path program 1 times [2020-06-22 08:16:13,110 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:16:13,111 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:16:13,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:13,112 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 08:16:13,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:13,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:16:13,169 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 08:16:13,171 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 08:16:13,171 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 08:16:13,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:16:13,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:16:13,194 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 6 conjunts are in the unsatisfiable core [2020-06-22 08:16:13,195 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:16:13,263 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 08:16:13,290 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-06-22 08:16:13,290 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2020-06-22 08:16:13,349 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:16:13,349 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:16:13,349 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:16:13,349 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:16:13,350 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 08:16:13,350 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:13,350 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:16:13,350 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:16:13,350 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 08:16:13,350 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:16:13,351 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:16:13,352 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 08:16:13,357 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 08:16:13,360 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 08:16:13,387 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 08:16:13,470 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:16:13,470 INFO L412 LassoAnalysis]: Checking for nontermination... 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 08:16:13,476 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:16:13,476 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:16:13,503 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:16:13,504 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 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 08:16:13,510 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:16:13,510 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:16:13,539 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:16:13,539 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 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 08:16:13,544 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:16:13,545 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 08:16:13,575 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:16:13,575 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:16:13,610 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 08:16:13,612 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:16:13,612 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:16:13,612 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:16:13,612 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:16:13,612 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 08:16:13,613 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 08:16:13,613 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:16:13,613 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:16:13,613 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 08:16:13,613 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:16:13,613 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:16:13,615 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 08:16:13,619 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 08:16:13,621 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 08:16:13,633 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 08:16:13,698 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:16:13,699 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 08:16:13,699 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 08:16:13,700 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:16:13,700 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:16:13,700 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:16:13,701 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:16:13,702 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:16:13,703 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:16:13,707 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:16:13,707 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 08:16:13,708 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:16:13,708 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:16:13,708 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:16:13,708 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:16:13,710 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:16:13,710 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:16:13,715 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:16:13,715 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 08:16:13,716 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:16:13,716 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:16:13,716 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:16:13,716 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:16:13,716 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:16:13,718 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:16:13,718 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:16:13,724 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 08:16:13,729 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 08:16:13,730 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 08:16:13,730 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 08:16:13,730 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 08:16:13,730 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 08:16:13,730 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 08:16:13,731 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 08:16:13,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:13,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:16:13,752 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 08:16:13,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:16:13,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:16:13,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 08:16:13,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:16:13,781 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 08:16:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:13,817 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-06-22 08:16:13,817 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-06-22 08:16:13,818 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2020-06-22 08:16:13,818 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 10 states and 18 transitions. cyclomatic complexity: 10 Second operand 4 states. [2020-06-22 08:16:13,909 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 10 states and 18 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 33 states and 63 transitions. Complement of second has 20 states. [2020-06-22 08:16:13,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-06-22 08:16:13,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 08:16:13,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2020-06-22 08:16:13,911 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 08:16:13,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:16:13,911 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 7 letters. Loop has 3 letters. [2020-06-22 08:16:13,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:16:13,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 4 letters. Loop has 6 letters. [2020-06-22 08:16:13,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:16:13,913 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 63 transitions. [2020-06-22 08:16:13,915 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2020-06-22 08:16:13,916 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 25 states and 46 transitions. [2020-06-22 08:16:13,916 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-06-22 08:16:13,917 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-06-22 08:16:13,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 46 transitions. [2020-06-22 08:16:13,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 08:16:13,934 INFO L706 BuchiCegarLoop]: Abstraction has 25 states and 46 transitions. [2020-06-22 08:16:13,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 46 transitions. [2020-06-22 08:16:13,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 10. [2020-06-22 08:16:13,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-06-22 08:16:13,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 18 transitions. [2020-06-22 08:16:13,941 INFO L729 BuchiCegarLoop]: Abstraction has 10 states and 18 transitions. [2020-06-22 08:16:13,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-06-22 08:16:13,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-06-22 08:16:13,944 INFO L87 Difference]: Start difference. First operand 10 states and 18 transitions. Second operand 8 states. [2020-06-22 08:16:14,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 08:16:14,066 INFO L93 Difference]: Finished difference Result 23 states and 39 transitions. [2020-06-22 08:16:14,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-06-22 08:16:14,068 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 39 transitions. [2020-06-22 08:16:14,069 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2020-06-22 08:16:14,070 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 39 transitions. [2020-06-22 08:16:14,070 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-06-22 08:16:14,070 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-06-22 08:16:14,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 39 transitions. [2020-06-22 08:16:14,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 08:16:14,070 INFO L706 BuchiCegarLoop]: Abstraction has 23 states and 39 transitions. [2020-06-22 08:16:14,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 39 transitions. [2020-06-22 08:16:14,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2020-06-22 08:16:14,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-06-22 08:16:14,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 29 transitions. [2020-06-22 08:16:14,073 INFO L729 BuchiCegarLoop]: Abstraction has 17 states and 29 transitions. [2020-06-22 08:16:14,073 INFO L609 BuchiCegarLoop]: Abstraction has 17 states and 29 transitions. [2020-06-22 08:16:14,073 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 08:16:14,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 29 transitions. [2020-06-22 08:16:14,074 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2020-06-22 08:16:14,074 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:16:14,074 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:16:14,074 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 08:16:14,074 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 08:16:14,075 INFO L794 eck$LassoCheckResult]: Stem: 246#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L27-1: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 247#L27-1 [2020-06-22 08:16:14,075 INFO L796 eck$LassoCheckResult]: Loop: 247#L27-1 [32] L27-1-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_11) (< 0 v_ULTIMATE.start_main_~y~0_11)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 245#L22 [35] L22-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_8 v_ULTIMATE.start_main_~y~0_12) (< v_ULTIMATE.start_main_~y~0_12 v_ULTIMATE.start_main_~x~0_12)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 253#L22-2 [47] L22-2-->L27-1: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~z~0_5 (- 1))) (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~x~0_7)) (= v_ULTIMATE.start_main_~z~0_4 (+ v_ULTIMATE.start_main_~z~0_5 v_ULTIMATE.start_main_~y~0_6)) (< 0 |v_ULTIMATE.start_main_#t~nondet2_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_5, 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_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 247#L27-1 [2020-06-22 08:16:14,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:14,075 INFO L82 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 2 times [2020-06-22 08:16:14,075 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:16:14,075 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:16:14,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:14,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:16:14,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:14,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:14,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:14,080 INFO L82 PathProgramCache]: Analyzing trace with hash 61675, now seen corresponding path program 1 times [2020-06-22 08:16:14,081 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:16:14,081 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:16:14,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:14,082 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 08:16:14,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:14,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:14,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:14,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1968299, now seen corresponding path program 1 times [2020-06-22 08:16:14,089 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:16:14,089 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:16:14,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:14,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:16:14,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:14,135 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:16:14,135 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:16:14,135 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:16:14,136 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:16:14,136 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 08:16:14,136 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:14,136 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:16:14,136 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:16:14,136 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 08:16:14,136 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:16:14,136 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:16:14,138 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 08:16:14,140 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 08:16:14,143 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 08:16:14,153 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 08:16:14,201 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:16:14,202 INFO L412 LassoAnalysis]: Checking for nontermination... 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 08:16:14,204 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:16:14,205 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:16:14,231 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:16:14,231 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=1} Honda state: {ULTIMATE.start_main_#t~nondet2=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 08:16:14,236 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:16:14,236 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:16:14,262 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:16:14,263 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 08:16:14,267 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:16:14,268 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 08:16:14,300 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:16:14,300 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:16:14,477 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 08:16:14,479 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:16:14,479 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:16:14,479 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:16:14,479 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:16:14,480 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 08:16:14,480 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 08:16:14,480 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:16:14,480 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:16:14,480 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 08:16:14,480 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:16:14,480 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:16:14,482 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 08:16:14,485 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 08:16:14,487 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 08:16:14,498 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 08:16:14,553 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:16:14,553 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 08:16:14,554 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 08:16:14,555 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:16:14,555 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:16:14,555 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:16:14,555 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:16:14,555 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:16:14,556 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:16:14,556 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:16:14,558 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:16:14,558 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 08:16:14,559 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:16:14,559 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:16:14,559 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:16:14,559 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:16:14,560 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:16:14,560 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:16:14,564 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:16:14,565 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 08:16:14,565 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:16:14,565 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:16:14,565 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:16:14,566 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:16:14,566 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:16:14,566 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:16:14,566 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:16:14,572 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 08:16:14,575 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 08:16:14,575 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 08:16:14,576 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 08:16:14,576 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 08:16:14,576 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 08:16:14,576 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 08:16:14,577 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 08:16:14,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:16:14,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 08:16:14,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:16:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:16:14,610 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2020-06-22 08:16:14,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:16:14,636 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 08:16:14,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:14,669 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-06-22 08:16:14,669 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-06-22 08:16:14,670 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2020-06-22 08:16:14,670 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 17 states and 29 transitions. cyclomatic complexity: 13 Second operand 4 states. [2020-06-22 08:16:14,763 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 17 states and 29 transitions. cyclomatic complexity: 13. Second operand 4 states. Result 70 states and 121 transitions. Complement of second has 10 states. [2020-06-22 08:16:14,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-06-22 08:16:14,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 08:16:14,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2020-06-22 08:16:14,764 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 08:16:14,764 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:16:14,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 08:16:14,765 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:16:14,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 08:16:14,765 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:16:14,767 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 121 transitions. [2020-06-22 08:16:14,769 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 32 [2020-06-22 08:16:14,771 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 48 states and 84 transitions. [2020-06-22 08:16:14,771 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2020-06-22 08:16:14,771 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2020-06-22 08:16:14,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 84 transitions. [2020-06-22 08:16:14,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 08:16:14,772 INFO L706 BuchiCegarLoop]: Abstraction has 48 states and 84 transitions. [2020-06-22 08:16:14,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 84 transitions. [2020-06-22 08:16:14,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 24. [2020-06-22 08:16:14,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-06-22 08:16:14,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 43 transitions. [2020-06-22 08:16:14,775 INFO L729 BuchiCegarLoop]: Abstraction has 24 states and 43 transitions. [2020-06-22 08:16:14,775 INFO L609 BuchiCegarLoop]: Abstraction has 24 states and 43 transitions. [2020-06-22 08:16:14,775 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 08:16:14,775 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 43 transitions. [2020-06-22 08:16:14,776 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2020-06-22 08:16:14,776 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:16:14,776 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:16:14,777 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 08:16:14,777 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 08:16:14,777 INFO L794 eck$LassoCheckResult]: Stem: 380#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L27-1: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 381#L27-1 [32] L27-1-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_11) (< 0 v_ULTIMATE.start_main_~y~0_11)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 382#L22 [2020-06-22 08:16:14,777 INFO L796 eck$LassoCheckResult]: Loop: 382#L22 [42] L22-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_9 v_ULTIMATE.start_main_~x~0_13) (>= v_ULTIMATE.start_main_~y~0_13 v_ULTIMATE.start_main_~x~0_13)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 383#L22-2 [47] L22-2-->L27-1: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~z~0_5 (- 1))) (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~x~0_7)) (= v_ULTIMATE.start_main_~z~0_4 (+ v_ULTIMATE.start_main_~z~0_5 v_ULTIMATE.start_main_~y~0_6)) (< 0 |v_ULTIMATE.start_main_#t~nondet2_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_5, 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_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 393#L27-1 [32] L27-1-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_11) (< 0 v_ULTIMATE.start_main_~y~0_11)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 382#L22 [2020-06-22 08:16:14,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:14,778 INFO L82 PathProgramCache]: Analyzing trace with hash 2047, now seen corresponding path program 1 times [2020-06-22 08:16:14,778 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:16:14,778 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:16:14,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:14,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:16:14,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:14,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:14,784 INFO L82 PathProgramCache]: Analyzing trace with hash 71642, now seen corresponding path program 1 times [2020-06-22 08:16:14,784 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:16:14,785 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:16:14,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:14,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:16:14,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:14,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:14,792 INFO L82 PathProgramCache]: Analyzing trace with hash 61024028, now seen corresponding path program 2 times [2020-06-22 08:16:14,792 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:16:14,792 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:16:14,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:14,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:16:14,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:14,845 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:16:14,845 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:16:14,845 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:16:14,845 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:16:14,845 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 08:16:14,845 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:14,845 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:16:14,845 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:16:14,846 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 08:16:14,846 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:16:14,846 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:16:14,847 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 08:16:14,850 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 08:16:14,853 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 08:16:14,855 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 08:16:14,915 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:16:14,915 INFO L412 LassoAnalysis]: Checking for nontermination... 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 08:16:14,918 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:16:14,918 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:16:14,944 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:16:14,944 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=1} Honda state: {ULTIMATE.start_main_#t~nondet2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:14,948 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:16:14,949 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:16:14,975 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:16:14,975 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:14,979 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:16:14,979 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:16:15,005 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:16:15,006 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:15,010 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:16:15,010 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:15,041 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:16:15,042 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:16:15,291 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 08:16:15,294 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:16:15,294 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:16:15,294 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:16:15,294 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:16:15,294 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 08:16:15,295 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 08:16:15,295 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:16:15,295 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:16:15,295 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 08:16:15,295 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:16:15,295 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:16:15,296 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 08:16:15,299 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 08:16:15,309 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 08:16:15,311 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 08:16:15,357 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:16:15,357 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 08:16:15,358 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 08:16:15,358 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:16:15,359 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:16:15,359 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:16:15,359 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:16:15,359 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:16:15,359 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:16:15,359 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:16:15,361 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:16:15,362 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 08:16:15,362 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:16:15,362 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:16:15,362 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:16:15,362 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:16:15,363 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:16:15,363 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:16:15,363 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:16:15,368 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 08:16:15,371 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 08:16:15,371 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 08:16:15,372 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 08:16:15,372 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 08:16:15,372 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 08:16:15,372 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 08:16:15,372 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 08:16:15,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:16:15,389 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 08:16:15,389 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:16:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:16:15,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 08:16:15,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:16:15,408 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 08:16:15,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:16:15,412 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 08:16:15,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:16:15,449 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 5 predicates after loop cannibalization [2020-06-22 08:16:15,449 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 5 loop predicates [2020-06-22 08:16:15,449 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 24 states and 43 transitions. cyclomatic complexity: 21 Second operand 4 states. [2020-06-22 08:16:15,555 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 24 states and 43 transitions. cyclomatic complexity: 21. Second operand 4 states. Result 107 states and 184 transitions. Complement of second has 21 states. [2020-06-22 08:16:15,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 2 accepting loop states [2020-06-22 08:16:15,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 08:16:15,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 22 transitions. [2020-06-22 08:16:15,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 2 letters. Loop has 3 letters. [2020-06-22 08:16:15,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:16:15,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 5 letters. Loop has 3 letters. [2020-06-22 08:16:15,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:16:15,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 2 letters. Loop has 6 letters. [2020-06-22 08:16:15,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:16:15,560 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 107 states and 184 transitions. [2020-06-22 08:16:15,563 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 26 [2020-06-22 08:16:15,564 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 107 states to 50 states and 82 transitions. [2020-06-22 08:16:15,564 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-06-22 08:16:15,565 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-06-22 08:16:15,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 82 transitions. [2020-06-22 08:16:15,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 08:16:15,565 INFO L706 BuchiCegarLoop]: Abstraction has 50 states and 82 transitions. [2020-06-22 08:16:15,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 82 transitions. [2020-06-22 08:16:15,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 25. [2020-06-22 08:16:15,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-06-22 08:16:15,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 46 transitions. [2020-06-22 08:16:15,568 INFO L729 BuchiCegarLoop]: Abstraction has 25 states and 46 transitions. [2020-06-22 08:16:15,568 INFO L609 BuchiCegarLoop]: Abstraction has 25 states and 46 transitions. [2020-06-22 08:16:15,568 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 08:16:15,568 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 46 transitions. [2020-06-22 08:16:15,569 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 18 [2020-06-22 08:16:15,569 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:16:15,569 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:16:15,570 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2020-06-22 08:16:15,570 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1] [2020-06-22 08:16:15,570 INFO L794 eck$LassoCheckResult]: Stem: 584#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L27-1: 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_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~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_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 578#L27-1 [32] L27-1-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_11) (< 0 v_ULTIMATE.start_main_~y~0_11)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 579#L22 [35] L22-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_8 v_ULTIMATE.start_main_~y~0_12) (< v_ULTIMATE.start_main_~y~0_12 v_ULTIMATE.start_main_~x~0_12)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 597#L22-2 [46] L22-2-->L27-1: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~z~0_5 (- 1))) (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~x~0_7)) (= v_ULTIMATE.start_main_~z~0_4 (+ v_ULTIMATE.start_main_~z~0_5 v_ULTIMATE.start_main_~y~0_6)) (> 0 |v_ULTIMATE.start_main_#t~nondet2_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_5, 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_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 598#L27-1 [32] L27-1-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_11) (< 0 v_ULTIMATE.start_main_~y~0_11)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 591#L22 [2020-06-22 08:16:15,570 INFO L796 eck$LassoCheckResult]: Loop: 591#L22 [35] L22-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_8 v_ULTIMATE.start_main_~y~0_12) (< v_ULTIMATE.start_main_~y~0_12 v_ULTIMATE.start_main_~x~0_12)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 587#L22-2 [40] L22-2-->L27-1: Formula: (and (= v_ULTIMATE.start_main_~z~0_6 (+ v_ULTIMATE.start_main_~z~0_7 v_ULTIMATE.start_main_~x~0_8)) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~z~0_7 (- 1))) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_9)) (= 0 |v_ULTIMATE.start_main_#t~nondet2_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 588#L27-1 [32] L27-1-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_11) (< 0 v_ULTIMATE.start_main_~y~0_11)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 595#L22 [35] L22-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_8 v_ULTIMATE.start_main_~y~0_12) (< v_ULTIMATE.start_main_~y~0_12 v_ULTIMATE.start_main_~x~0_12)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 600#L22-2 [46] L22-2-->L27-1: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~z~0_5 (- 1))) (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~x~0_7)) (= v_ULTIMATE.start_main_~z~0_4 (+ v_ULTIMATE.start_main_~z~0_5 v_ULTIMATE.start_main_~y~0_6)) (> 0 |v_ULTIMATE.start_main_#t~nondet2_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_5, 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_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 596#L27-1 [32] L27-1-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_11) (< 0 v_ULTIMATE.start_main_~y~0_11)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 591#L22 [2020-06-22 08:16:15,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:15,571 INFO L82 PathProgramCache]: Analyzing trace with hash 61017270, now seen corresponding path program 1 times [2020-06-22 08:16:15,571 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:16:15,571 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:16:15,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:15,572 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 08:16:15,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:15,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:15,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1927453211, now seen corresponding path program 1 times [2020-06-22 08:16:15,581 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:16:15,581 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:16:15,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:15,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:16:15,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:15,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:15,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:15,591 INFO L82 PathProgramCache]: Analyzing trace with hash 567577360, now seen corresponding path program 1 times [2020-06-22 08:16:15,591 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:16:15,591 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:16:15,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:15,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:16:15,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:16:15,623 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-06-22 08:16:15,624 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 08:16:15,624 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 08:16:15,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:16:15,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:16:15,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjunts are in the unsatisfiable core [2020-06-22 08:16:15,648 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:16:15,692 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-06-22 08:16:15,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-06-22 08:16:15,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2020-06-22 08:16:15,787 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:16:15,787 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:16:15,787 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:16:15,787 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:16:15,787 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 08:16:15,787 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:15,788 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:16:15,788 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:16:15,788 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-06-22 08:16:15,788 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:16:15,788 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:16:15,790 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 08:16:15,805 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 08:16:15,808 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 08:16:15,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 08:16:15,864 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:16:15,864 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:15,867 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:16:15,868 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:15,900 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:16:15,900 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:16:16,335 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 08:16:16,339 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:16:16,339 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:16:16,339 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:16:16,339 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:16:16,339 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 08:16:16,339 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 08:16:16,339 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:16:16,339 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:16:16,339 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-06-22 08:16:16,340 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:16:16,340 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:16:16,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 08:16:16,344 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 08:16:16,354 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 08:16:16,356 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 08:16:16,412 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:16:16,412 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 08:16:16,412 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 08:16:16,413 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:16:16,413 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:16:16,413 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:16:16,413 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:16:16,414 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:16:16,415 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:16:16,417 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:16:16,417 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 08:16:16,418 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:16:16,418 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:16:16,419 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:16:16,419 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:16:16,419 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:16:16,419 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:16:16,420 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:16:16,424 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 08:16:16,428 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 08:16:16,429 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 2 variables to zero. [2020-06-22 08:16:16,429 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 08:16:16,429 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 08:16:16,429 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 08:16:16,429 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 08:16:16,430 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 08:16:16,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:16:16,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 08:16:16,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:16:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:16:16,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 8 conjunts are in the unsatisfiable core [2020-06-22 08:16:16,459 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:16:16,492 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 08:16:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:16:16,498 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2020-06-22 08:16:16,499 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:16:16,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:16:16,628 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2020-06-22 08:16:16,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:16:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:16,642 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-06-22 08:16:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:16:16,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 8 conjunts are in the unsatisfiable core [2020-06-22 08:16:16,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:16:16,727 INFO L98 LoopCannibalizer]: 5 predicates before loop cannibalization 13 predicates after loop cannibalization [2020-06-22 08:16:16,728 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 13 loop predicates [2020-06-22 08:16:16,728 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 25 states and 46 transitions. cyclomatic complexity: 23 Second operand 6 states. [2020-06-22 08:16:17,492 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 25 states and 46 transitions. cyclomatic complexity: 23. Second operand 6 states. Result 504 states and 785 transitions. Complement of second has 156 states. [2020-06-22 08:16:17,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 21 states 1 stem states 17 non-accepting loop states 2 accepting loop states [2020-06-22 08:16:17,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-06-22 08:16:17,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 52 transitions. [2020-06-22 08:16:17,493 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 52 transitions. Stem has 5 letters. Loop has 6 letters. [2020-06-22 08:16:17,494 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:16:17,495 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 52 transitions. Stem has 11 letters. Loop has 6 letters. [2020-06-22 08:16:17,495 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:16:17,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 52 transitions. Stem has 5 letters. Loop has 12 letters. [2020-06-22 08:16:17,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:16:17,499 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 504 states and 785 transitions. [2020-06-22 08:16:17,510 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 37 [2020-06-22 08:16:17,512 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 504 states to 67 states and 94 transitions. [2020-06-22 08:16:17,512 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-06-22 08:16:17,512 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-06-22 08:16:17,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 94 transitions. [2020-06-22 08:16:17,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 08:16:17,513 INFO L706 BuchiCegarLoop]: Abstraction has 67 states and 94 transitions. [2020-06-22 08:16:17,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states and 94 transitions. [2020-06-22 08:16:17,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 27. [2020-06-22 08:16:17,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-06-22 08:16:17,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 40 transitions. [2020-06-22 08:16:17,516 INFO L729 BuchiCegarLoop]: Abstraction has 27 states and 40 transitions. [2020-06-22 08:16:17,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-06-22 08:16:17,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-06-22 08:16:17,517 INFO L87 Difference]: Start difference. First operand 27 states and 40 transitions. Second operand 8 states. [2020-06-22 08:16:17,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 08:16:17,603 INFO L93 Difference]: Finished difference Result 40 states and 59 transitions. [2020-06-22 08:16:17,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-06-22 08:16:17,605 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 59 transitions. [2020-06-22 08:16:17,606 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 31 [2020-06-22 08:16:17,606 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 40 states and 59 transitions. [2020-06-22 08:16:17,606 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-06-22 08:16:17,607 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-06-22 08:16:17,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 59 transitions. [2020-06-22 08:16:17,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 08:16:17,607 INFO L706 BuchiCegarLoop]: Abstraction has 40 states and 59 transitions. [2020-06-22 08:16:17,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 59 transitions. [2020-06-22 08:16:17,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 27. [2020-06-22 08:16:17,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-06-22 08:16:17,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 40 transitions. [2020-06-22 08:16:17,610 INFO L729 BuchiCegarLoop]: Abstraction has 27 states and 40 transitions. [2020-06-22 08:16:17,610 INFO L609 BuchiCegarLoop]: Abstraction has 27 states and 40 transitions. [2020-06-22 08:16:17,610 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2020-06-22 08:16:17,610 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 40 transitions. [2020-06-22 08:16:17,610 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2020-06-22 08:16:17,611 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:16:17,611 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:16:17,611 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2020-06-22 08:16:17,611 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2020-06-22 08:16:17,611 INFO L794 eck$LassoCheckResult]: Stem: 1525#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L27-1: 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_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~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_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 1518#L27-1 [32] L27-1-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_11) (< 0 v_ULTIMATE.start_main_~y~0_11)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 1520#L22 [42] L22-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_9 v_ULTIMATE.start_main_~x~0_13) (>= v_ULTIMATE.start_main_~y~0_13 v_ULTIMATE.start_main_~x~0_13)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 1538#L22-2 [40] L22-2-->L27-1: Formula: (and (= v_ULTIMATE.start_main_~z~0_6 (+ v_ULTIMATE.start_main_~z~0_7 v_ULTIMATE.start_main_~x~0_8)) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~z~0_7 (- 1))) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_9)) (= 0 |v_ULTIMATE.start_main_#t~nondet2_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 1539#L27-1 [32] L27-1-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_11) (< 0 v_ULTIMATE.start_main_~y~0_11)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 1543#L22 [2020-06-22 08:16:17,612 INFO L796 eck$LassoCheckResult]: Loop: 1543#L22 [35] L22-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_8 v_ULTIMATE.start_main_~y~0_12) (< v_ULTIMATE.start_main_~y~0_12 v_ULTIMATE.start_main_~x~0_12)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 1526#L22-2 [47] L22-2-->L27-1: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~z~0_5 (- 1))) (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~x~0_7)) (= v_ULTIMATE.start_main_~z~0_4 (+ v_ULTIMATE.start_main_~z~0_5 v_ULTIMATE.start_main_~y~0_6)) (< 0 |v_ULTIMATE.start_main_#t~nondet2_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_5, 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_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 1522#L27-1 [32] L27-1-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_11) (< 0 v_ULTIMATE.start_main_~y~0_11)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 1524#L22 [42] L22-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_9 v_ULTIMATE.start_main_~x~0_13) (>= v_ULTIMATE.start_main_~y~0_13 v_ULTIMATE.start_main_~x~0_13)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 1538#L22-2 [40] L22-2-->L27-1: Formula: (and (= v_ULTIMATE.start_main_~z~0_6 (+ v_ULTIMATE.start_main_~z~0_7 v_ULTIMATE.start_main_~x~0_8)) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~z~0_7 (- 1))) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_9)) (= 0 |v_ULTIMATE.start_main_#t~nondet2_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 1539#L27-1 [32] L27-1-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_11) (< 0 v_ULTIMATE.start_main_~y~0_11)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 1543#L22 [2020-06-22 08:16:17,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:17,612 INFO L82 PathProgramCache]: Analyzing trace with hash 61023811, now seen corresponding path program 1 times [2020-06-22 08:16:17,612 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:16:17,612 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:16:17,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:17,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:16:17,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:17,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:17,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:17,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1933924399, now seen corresponding path program 1 times [2020-06-22 08:16:17,621 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:16:17,621 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:16:17,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:17,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:16:17,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:17,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:17,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:17,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:17,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1060158223, now seen corresponding path program 2 times [2020-06-22 08:16:17,630 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:16:17,630 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:16:17,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:17,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:16:17,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:17,709 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:16:17,709 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:16:17,709 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:16:17,709 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:16:17,709 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 08:16:17,713 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:17,713 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:16:17,713 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:16:17,713 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Loop [2020-06-22 08:16:17,713 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:16:17,713 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:16:17,715 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 08:16:17,717 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 08:16:17,719 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 08:16:17,729 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 08:16:17,775 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:16:17,775 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:17,780 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:16:17,780 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:16:17,806 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:16:17,806 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:17,810 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:16:17,811 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:16:17,837 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:16:17,837 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:17,841 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:16:17,841 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:17,870 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:16:17,871 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:16:18,158 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 08:16:18,161 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:16:18,161 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:16:18,161 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:16:18,161 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:16:18,161 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 08:16:18,161 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 08:16:18,161 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:16:18,161 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:16:18,161 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Loop [2020-06-22 08:16:18,162 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:16:18,162 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:16:18,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 08:16:18,174 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 08:16:18,176 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 08:16:18,178 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 08:16:18,224 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:16:18,225 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 08:16:18,225 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 08:16:18,226 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:16:18,226 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:16:18,226 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:16:18,226 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:16:18,226 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:16:18,227 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:16:18,227 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:16:18,231 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 08:16:18,233 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 08:16:18,233 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 08:16:18,234 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 08:16:18,234 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 08:16:18,234 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 08:16:18,234 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 08:16:18,234 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 08:16:18,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:16:18,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 08:16:18,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:16:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:16:18,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 7 conjunts are in the unsatisfiable core [2020-06-22 08:16:18,260 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:16:18,290 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 08:16:18,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:18,296 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-06-22 08:16:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:18,312 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-06-22 08:16:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:18,318 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-06-22 08:16:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:16:18,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 7 conjunts are in the unsatisfiable core [2020-06-22 08:16:18,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:16:18,368 INFO L98 LoopCannibalizer]: 5 predicates before loop cannibalization 7 predicates after loop cannibalization [2020-06-22 08:16:18,368 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 7 loop predicates [2020-06-22 08:16:18,369 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 27 states and 40 transitions. cyclomatic complexity: 15 Second operand 6 states. [2020-06-22 08:16:18,520 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 27 states and 40 transitions. cyclomatic complexity: 15. Second operand 6 states. Result 91 states and 134 transitions. Complement of second has 23 states. [2020-06-22 08:16:18,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 1 stem states 7 non-accepting loop states 2 accepting loop states [2020-06-22 08:16:18,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-06-22 08:16:18,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 22 transitions. [2020-06-22 08:16:18,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 22 transitions. Stem has 5 letters. Loop has 6 letters. [2020-06-22 08:16:18,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:16:18,522 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 22 transitions. Stem has 11 letters. Loop has 6 letters. [2020-06-22 08:16:18,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:16:18,522 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 22 transitions. Stem has 5 letters. Loop has 12 letters. [2020-06-22 08:16:18,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:16:18,523 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 91 states and 134 transitions. [2020-06-22 08:16:18,525 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 08:16:18,526 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 91 states to 45 states and 64 transitions. [2020-06-22 08:16:18,526 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-06-22 08:16:18,526 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-06-22 08:16:18,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 64 transitions. [2020-06-22 08:16:18,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 08:16:18,526 INFO L706 BuchiCegarLoop]: Abstraction has 45 states and 64 transitions. [2020-06-22 08:16:18,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 64 transitions. [2020-06-22 08:16:18,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 29. [2020-06-22 08:16:18,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-06-22 08:16:18,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 42 transitions. [2020-06-22 08:16:18,529 INFO L729 BuchiCegarLoop]: Abstraction has 29 states and 42 transitions. [2020-06-22 08:16:18,529 INFO L609 BuchiCegarLoop]: Abstraction has 29 states and 42 transitions. [2020-06-22 08:16:18,529 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2020-06-22 08:16:18,529 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 42 transitions. [2020-06-22 08:16:18,530 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 08:16:18,530 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:16:18,530 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:16:18,530 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2020-06-22 08:16:18,530 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 08:16:18,531 INFO L794 eck$LassoCheckResult]: Stem: 1748#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L27-1: 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_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~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_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 1749#L27-1 [32] L27-1-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_11) (< 0 v_ULTIMATE.start_main_~y~0_11)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 1762#L22 [35] L22-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_8 v_ULTIMATE.start_main_~y~0_12) (< v_ULTIMATE.start_main_~y~0_12 v_ULTIMATE.start_main_~x~0_12)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 1760#L22-2 [46] L22-2-->L27-1: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~z~0_5 (- 1))) (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~x~0_7)) (= v_ULTIMATE.start_main_~z~0_4 (+ v_ULTIMATE.start_main_~z~0_5 v_ULTIMATE.start_main_~y~0_6)) (> 0 |v_ULTIMATE.start_main_#t~nondet2_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_5, 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_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 1759#L27-1 [32] L27-1-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_11) (< 0 v_ULTIMATE.start_main_~y~0_11)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 1756#L22 [42] L22-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_9 v_ULTIMATE.start_main_~x~0_13) (>= v_ULTIMATE.start_main_~y~0_13 v_ULTIMATE.start_main_~x~0_13)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 1754#L22-2 [2020-06-22 08:16:18,531 INFO L796 eck$LassoCheckResult]: Loop: 1754#L22-2 [40] L22-2-->L27-1: Formula: (and (= v_ULTIMATE.start_main_~z~0_6 (+ v_ULTIMATE.start_main_~z~0_7 v_ULTIMATE.start_main_~x~0_8)) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~z~0_7 (- 1))) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_9)) (= 0 |v_ULTIMATE.start_main_#t~nondet2_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 1744#L27-1 [32] L27-1-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_11) (< 0 v_ULTIMATE.start_main_~y~0_11)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 1745#L22 [35] L22-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_8 v_ULTIMATE.start_main_~y~0_12) (< v_ULTIMATE.start_main_~y~0_12 v_ULTIMATE.start_main_~x~0_12)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 1754#L22-2 [2020-06-22 08:16:18,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:18,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1891535412, now seen corresponding path program 1 times [2020-06-22 08:16:18,531 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:16:18,531 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:16:18,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:18,533 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 08:16:18,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:18,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:18,540 INFO L82 PathProgramCache]: Analyzing trace with hash 69258, now seen corresponding path program 3 times [2020-06-22 08:16:18,540 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:16:18,540 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:16:18,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:18,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:16:18,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:18,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:18,546 INFO L82 PathProgramCache]: Analyzing trace with hash 760574839, now seen corresponding path program 1 times [2020-06-22 08:16:18,546 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:16:18,546 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:16:18,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:18,547 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 08:16:18,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:18,593 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:16:18,593 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:16:18,594 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:16:18,594 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:16:18,594 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 08:16:18,594 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:18,594 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:16:18,594 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:16:18,594 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration7_Loop [2020-06-22 08:16:18,594 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:16:18,594 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:16:18,595 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 08:16:18,598 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 08:16:18,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 08:16:18,602 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 08:16:18,662 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:16:18,662 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:18,665 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:16:18,665 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:16:18,692 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:16:18,692 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:18,696 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:16:18,696 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:16:18,724 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:16:18,725 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_13=0} Honda state: {v_rep~unnamed0~0~false_13=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:18,731 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:16:18,732 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:16:18,735 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:16:18,736 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:18,762 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:16:18,762 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:18,796 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:16:18,796 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:16:23,006 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 08:16:23,010 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:16:23,010 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:16:23,010 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:16:23,010 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:16:23,010 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 08:16:23,010 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 08:16:23,010 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:16:23,010 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:16:23,011 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration7_Loop [2020-06-22 08:16:23,011 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:16:23,011 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:16:23,012 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 08:16:23,015 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 08:16:23,018 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 08:16:23,020 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 08:16:23,090 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:16:23,090 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 08:16:23,091 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 08:16:23,091 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:16:23,092 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:16:23,092 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:16:23,092 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:16:23,093 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:16:23,093 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:16:23,095 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:16:23,096 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 08:16:23,096 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:16:23,096 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:16:23,096 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:16:23,097 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:16:23,097 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:16:23,098 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:16:23,099 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:16:23,099 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 08:16:23,100 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:16:23,100 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:16:23,100 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:16:23,100 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:16:23,100 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:16:23,100 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:16:23,101 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:16:23,101 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:16:23,102 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 08:16:23,102 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:16:23,102 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:16:23,102 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:16:23,102 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:16:23,102 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:16:23,103 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:16:23,103 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:16:23,105 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 08:16:23,108 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 08:16:23,108 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 08:16:23,108 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 08:16:23,108 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 08:16:23,108 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 08:16:23,108 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2020-06-22 08:16:23,109 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 08:16:23,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:16:23,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 08:16:23,143 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:16:23,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:16:23,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 08:16:23,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:16:23,167 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 08:16:23,174 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 08:16:23,175 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-06-22 08:16:23,175 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 29 states and 42 transitions. cyclomatic complexity: 16 Second operand 4 states. [2020-06-22 08:16:23,226 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 29 states and 42 transitions. cyclomatic complexity: 16. Second operand 4 states. Result 52 states and 75 transitions. Complement of second has 7 states. [2020-06-22 08:16:23,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2020-06-22 08:16:23,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 08:16:23,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2020-06-22 08:16:23,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2020-06-22 08:16:23,227 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:16:23,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 9 letters. Loop has 3 letters. [2020-06-22 08:16:23,227 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:16:23,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 6 letters. Loop has 6 letters. [2020-06-22 08:16:23,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:16:23,228 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 75 transitions. [2020-06-22 08:16:23,229 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 08:16:23,229 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 0 states and 0 transitions. [2020-06-22 08:16:23,229 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 08:16:23,230 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 08:16:23,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 08:16:23,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 08:16:23,230 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 08:16:23,230 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 08:16:23,230 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 08:16:23,230 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2020-06-22 08:16:23,230 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 08:16:23,230 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 08:16:23,231 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 08:16:23,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 08:16:23 BasicIcfg [2020-06-22 08:16:23,237 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 08:16:23,237 INFO L168 Benchmark]: Toolchain (without parser) took 12057.18 ms. Allocated memory was 649.6 MB in the beginning and 838.9 MB in the end (delta: 189.3 MB). Free memory was 564.2 MB in the beginning and 769.7 MB in the end (delta: -205.5 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 08:16:23,239 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 08:16:23,239 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.70 ms. Allocated memory was 649.6 MB in the beginning and 693.6 MB in the end (delta: 44.0 MB). Free memory was 564.2 MB in the beginning and 660.0 MB in the end (delta: -95.8 MB). Peak memory consumption was 30.6 MB. Max. memory is 50.3 GB. [2020-06-22 08:16:23,240 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.50 ms. Allocated memory is still 693.6 MB. Free memory was 660.0 MB in the beginning and 658.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 08:16:23,240 INFO L168 Benchmark]: Boogie Preprocessor took 20.56 ms. Allocated memory is still 693.6 MB. Free memory was 658.6 MB in the beginning and 655.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. [2020-06-22 08:16:23,241 INFO L168 Benchmark]: RCFGBuilder took 215.00 ms. Allocated memory is still 693.6 MB. Free memory was 655.5 MB in the beginning and 642.6 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. [2020-06-22 08:16:23,241 INFO L168 Benchmark]: BlockEncodingV2 took 79.17 ms. Allocated memory is still 693.6 MB. Free memory was 641.3 MB in the beginning and 637.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. [2020-06-22 08:16:23,242 INFO L168 Benchmark]: TraceAbstraction took 152.66 ms. Allocated memory is still 693.6 MB. Free memory was 635.9 MB in the beginning and 627.7 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-06-22 08:16:23,242 INFO L168 Benchmark]: BuchiAutomizer took 11252.57 ms. Allocated memory was 693.6 MB in the beginning and 838.9 MB in the end (delta: 145.2 MB). Free memory was 627.7 MB in the beginning and 769.7 MB in the end (delta: -141.9 MB). Peak memory consumption was 3.3 MB. Max. memory is 50.3 GB. [2020-06-22 08:16:23,247 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 4 locations, 7 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 294.70 ms. Allocated memory was 649.6 MB in the beginning and 693.6 MB in the end (delta: 44.0 MB). Free memory was 564.2 MB in the beginning and 660.0 MB in the end (delta: -95.8 MB). Peak memory consumption was 30.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 37.50 ms. Allocated memory is still 693.6 MB. Free memory was 660.0 MB in the beginning and 658.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.56 ms. Allocated memory is still 693.6 MB. Free memory was 658.6 MB in the beginning and 655.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 215.00 ms. Allocated memory is still 693.6 MB. Free memory was 655.5 MB in the beginning and 642.6 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 79.17 ms. Allocated memory is still 693.6 MB. Free memory was 641.3 MB in the beginning and 637.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. * TraceAbstraction took 152.66 ms. Allocated memory is still 693.6 MB. Free memory was 635.9 MB in the beginning and 627.7 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 11252.57 ms. Allocated memory was 693.6 MB in the beginning and 838.9 MB in the end (delta: 145.2 MB). Free memory was 627.7 MB in the beginning and 769.7 MB in the end (delta: -141.9 MB). Peak memory consumption was 3.3 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 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=4occurred 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 9 terminating modules (2 trivial, 0 deterministic, 7 nondeterministic). One nondeterministic module has affine ranking function y and consists of 6 locations. One nondeterministic module has affine ranking function y and consists of 6 locations. One nondeterministic module has affine ranking function x and consists of 6 locations. One nondeterministic module has affine ranking function x and consists of 7 locations. One nondeterministic module has affine ranking function x and consists of 21 locations. One nondeterministic module has affine ranking function y and consists of 10 locations. One nondeterministic module has affine ranking function z and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 11.2s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 8.5s. Construction of modules took 0.4s. Büchi inclusion checks took 2.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 8. Automata minimization 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 139 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 29 states and ocurred in iteration 6. Nontrivial modules had stage [7, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/6 HoareTripleCheckerStatistics: 36 SDtfs, 146 SDslu, 4 SDs, 0 SdLazy, 553 SolverSat, 124 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital26 mio100 ax144 hnf100 lsp61 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq178 hnf92 smp100 dnf100 smp100 tf105 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 14 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 6.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 08:16:07.995 ----------------------------------------------- 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 08:16:23.487 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check