YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 03:21:39,236 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 03:21:39,238 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 03:21:39,249 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 03:21:39,249 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 03:21:39,250 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 03:21:39,252 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 03:21:39,253 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 03:21:39,255 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 03:21:39,255 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 03:21:39,256 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 03:21:39,256 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 03:21:39,257 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 03:21:39,258 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 03:21:39,259 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 03:21:39,260 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 03:21:39,261 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 03:21:39,262 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 03:21:39,264 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 03:21:39,266 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 03:21:39,267 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 03:21:39,268 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 03:21:39,270 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 03:21:39,270 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 03:21:39,270 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 03:21:39,271 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 03:21:39,272 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 03:21:39,272 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 03:21:39,273 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 03:21:39,273 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 03:21:39,274 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 03:21:39,275 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 03:21:39,275 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 03:21:39,276 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 03:21:39,276 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 03:21:39,277 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 03:21:39,277 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 03:21:39,278 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 03:21:39,278 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 03:21:39,279 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 03:21:39,292 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 03:21:39,293 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 03:21:39,294 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 03:21:39,294 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 03:21:39,294 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 03:21:39,294 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 03:21:39,294 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 03:21:39,295 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 03:21:39,295 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 03:21:39,295 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 03:21:39,295 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 03:21:39,295 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 03:21:39,295 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 03:21:39,296 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 03:21:39,296 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:21:39,296 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 03:21:39,296 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 03:21:39,296 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 03:21:39,296 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 03:21:39,297 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 03:21:39,297 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 03:21:39,297 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 03:21:39,297 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 03:21:39,297 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 03:21:39,297 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 03:21:39,298 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 03:21:39,298 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 03:21:39,298 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 03:21:39,298 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 03:21:39,324 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 03:21:39,336 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 03:21:39,340 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 03:21:39,341 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 03:21:39,342 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 03:21:39,342 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 03:21:39,409 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/d7937c83197a4d2dadc5f1a892cc4009/FLAG9f6c95f1d [2020-06-22 03:21:39,738 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 03:21:39,738 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 03:21:39,745 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/d7937c83197a4d2dadc5f1a892cc4009/FLAG9f6c95f1d [2020-06-22 03:21:40,143 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/d7937c83197a4d2dadc5f1a892cc4009 [2020-06-22 03:21:40,154 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 03:21:40,156 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 03:21:40,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 03:21:40,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 03:21:40,161 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 03:21:40,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 03:21:40" (1/1) ... [2020-06-22 03:21:40,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@533a4d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:21:40, skipping insertion in model container [2020-06-22 03:21:40,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 03:21:40" (1/1) ... [2020-06-22 03:21:40,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 03:21:40,190 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 03:21:40,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 03:21:40,353 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 03:21:40,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 03:21:40,439 INFO L195 MainTranslator]: Completed translation [2020-06-22 03:21:40,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:21:40 WrapperNode [2020-06-22 03:21:40,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 03:21:40,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 03:21:40,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 03:21:40,441 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 03:21:40,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:21:40" (1/1) ... [2020-06-22 03:21:40,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:21:40" (1/1) ... [2020-06-22 03:21:40,476 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 03:21:40,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 03:21:40,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 03:21:40,477 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 03:21:40,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:21:40" (1/1) ... [2020-06-22 03:21:40,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:21:40" (1/1) ... [2020-06-22 03:21:40,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:21:40" (1/1) ... [2020-06-22 03:21:40,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:21:40" (1/1) ... [2020-06-22 03:21:40,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:21:40" (1/1) ... [2020-06-22 03:21:40,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:21:40" (1/1) ... [2020-06-22 03:21:40,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:21:40" (1/1) ... [2020-06-22 03:21:40,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 03:21:40,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 03:21:40,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 03:21:40,496 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 03:21:40,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:21:40" (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 03:21:40,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 03:21:40,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 03:21:40,693 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 03:21:40,694 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 03:21:40,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:21:40 BoogieIcfgContainer [2020-06-22 03:21:40,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 03:21:40,696 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 03:21:40,696 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 03:21:40,698 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 03:21:40,698 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:21:40" (1/1) ... [2020-06-22 03:21:40,713 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-06-22 03:21:40,714 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 03:21:40,715 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 03:21:40,715 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 03:21:40,716 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 03:21:40,717 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 03:21:40,718 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 03:21:40,718 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 03:21:40,733 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 03:21:40,748 INFO L200 BlockEncoder]: SBE split 2 edges [2020-06-22 03:21:40,753 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 03:21:40,754 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 03:21:40,764 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 03:21:40,766 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2020-06-22 03:21:40,767 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 03:21:40,767 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 03:21:40,767 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 03:21:40,768 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 03:21:40,768 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 7 edges [2020-06-22 03:21:40,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 03:21:40 BasicIcfg [2020-06-22 03:21:40,769 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 03:21:40,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 03:21:40,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 03:21:40,773 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 03:21:40,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 03:21:40" (1/4) ... [2020-06-22 03:21:40,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a2ac6b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 03:21:40, skipping insertion in model container [2020-06-22 03:21:40,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:21:40" (2/4) ... [2020-06-22 03:21:40,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a2ac6b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 03:21:40, skipping insertion in model container [2020-06-22 03:21:40,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:21:40" (3/4) ... [2020-06-22 03:21:40,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a2ac6b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 03:21:40, skipping insertion in model container [2020-06-22 03:21:40,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 03:21:40" (4/4) ... [2020-06-22 03:21:40,776 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 03:21:40,786 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 03:21:40,793 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 03:21:40,810 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 03:21:40,839 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 03:21:40,839 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 03:21:40,839 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 03:21:40,840 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 03:21:40,840 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 03:21:40,840 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 03:21:40,840 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 03:21:40,840 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 03:21:40,840 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 03:21:40,854 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-06-22 03:21:40,861 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 03:21:40,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-06-22 03:21:40,913 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 03:21:40,913 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-06-22 03:21:40,913 INFO L451 ceAbstractionStarter]: At program point L21-2(lines 17 25) the Hoare annotation is: true [2020-06-22 03:21:40,913 INFO L448 ceAbstractionStarter]: For program point L18(lines 18 24) no Hoare annotation was computed. [2020-06-22 03:21:40,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 03:21:40 BasicIcfg [2020-06-22 03:21:40,921 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 03:21:40,922 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 03:21:40,922 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 03:21:40,925 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 03:21:40,926 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 03:21:40,926 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 03:21:40" (1/5) ... [2020-06-22 03:21:40,927 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a46d527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 03:21:40, skipping insertion in model container [2020-06-22 03:21:40,927 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 03:21:40,927 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:21:40" (2/5) ... [2020-06-22 03:21:40,928 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a46d527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 03:21:40, skipping insertion in model container [2020-06-22 03:21:40,928 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 03:21:40,928 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:21:40" (3/5) ... [2020-06-22 03:21:40,928 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a46d527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 03:21:40, skipping insertion in model container [2020-06-22 03:21:40,929 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 03:21:40,929 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 03:21:40" (4/5) ... [2020-06-22 03:21:40,929 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a46d527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 03:21:40, skipping insertion in model container [2020-06-22 03:21:40,929 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 03:21:40,930 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 03:21:40" (5/5) ... [2020-06-22 03:21:40,931 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 03:21:40,957 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 03:21:40,958 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 03:21:40,958 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 03:21:40,958 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 03:21:40,958 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 03:21:40,958 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 03:21:40,958 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 03:21:40,958 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 03:21:40,959 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 03:21:40,962 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 03:21:40,980 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 03:21:40,981 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 03:21:40,981 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 03:21:40,987 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 03:21:40,988 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 03:21:40,988 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 03:21:40,988 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 03:21:40,989 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 03:21:40,989 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 03:21:40,989 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 03:21:40,989 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 03:21:40,990 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 03:21:40,995 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [33] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~p~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~q~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_1, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~p~0, ULTIMATE.start_main_~q~0, ULTIMATE.start_main_#res] 6#L21-2true [2020-06-22 03:21:40,995 INFO L796 eck$LassoCheckResult]: Loop: 6#L21-2true [48] L21-2-->L18: Formula: (and (< 0 v_ULTIMATE.start_main_~p~0_10) (< v_ULTIMATE.start_main_~q~0_9 v_ULTIMATE.start_main_~p~0_10) (< 0 v_ULTIMATE.start_main_~q~0_9)) InVars {ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_10, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_9} OutVars{ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_10, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_9} AuxVars[] AssignedVars[] 5#L18true [34] L18-->L21-2: Formula: (and (< v_ULTIMATE.start_main_~q~0_11 v_ULTIMATE.start_main_~p~0_11) (= v_ULTIMATE.start_main_~q~0_10 (+ v_ULTIMATE.start_main_~q~0_11 (- 1)))) InVars {ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_11, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_11} OutVars{ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_11, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~q~0] 6#L21-2true [2020-06-22 03:21:41,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:21:41,001 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2020-06-22 03:21:41,003 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:21:41,004 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:21:41,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:21:41,032 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:21:41,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:21:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:21:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:21:41,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:21:41,072 INFO L82 PathProgramCache]: Analyzing trace with hash 2483, now seen corresponding path program 1 times [2020-06-22 03:21:41,073 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:21:41,073 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:21:41,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:21:41,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:21:41,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:21:41,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:21:41,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:21:41,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:21:41,089 INFO L82 PathProgramCache]: Analyzing trace with hash 63026, now seen corresponding path program 1 times [2020-06-22 03:21:41,090 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:21:41,090 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:21:41,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:21:41,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:21:41,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:21:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:21:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:21:41,162 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 03:21:41,163 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 03:21:41,163 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 03:21:41,163 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 03:21:41,163 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 03:21:41,163 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:21:41,163 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 03:21:41,164 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 03:21:41,164 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 03:21:41,164 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 03:21:41,164 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 03:21:41,183 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 03:21:41,193 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 03:21:41,204 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 03:21:41,283 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 03:21:41,284 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:21:41,295 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:21:41,295 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:21:41,328 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 03:21:41,328 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 03:21:41,335 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:21:41,336 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:21:41,363 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 03:21:41,363 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 03:21:41,369 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:21:41,369 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 03:21:41,400 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 03:21:41,400 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:21:41,433 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 03:21:41,435 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 03:21:41,436 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 03:21:41,436 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 03:21:41,436 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 03:21:41,436 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 03:21:41,436 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 03:21:41,436 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 03:21:41,436 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 03:21:41,437 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 03:21:41,437 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 03:21:41,437 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 03:21:41,439 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 03:21:41,442 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 03:21:41,446 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 03:21:41,530 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 03:21:41,536 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 03:21:41,538 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 03:21:41,539 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:21:41,540 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:21:41,540 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:21:41,540 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:21:41,545 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 03:21:41,545 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 03:21:41,554 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 03:21:41,554 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 03:21:41,555 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:21:41,555 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:21:41,555 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:21:41,555 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:21:41,558 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 03:21:41,558 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 03:21:41,567 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 03:21:41,568 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 03:21:41,569 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:21:41,569 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:21:41,569 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:21:41,570 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:21:41,570 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:21:41,571 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:21:41,571 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:21:41,579 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 03:21:41,585 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 03:21:41,585 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 03:21:41,587 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 03:21:41,587 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 03:21:41,588 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 03:21:41,588 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~q~0) = 1*ULTIMATE.start_main_~q~0 Supporting invariants [] [2020-06-22 03:21:41,590 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 03:21:41,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:21:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:21:41,628 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 03:21:41,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:21:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:21:41,640 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 03:21:41,640 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:21:41,654 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 03:21:41,678 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 03:21:41,683 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 03:21:41,684 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 3 states. [2020-06-22 03:21:41,734 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 3 states. Result 10 states and 21 transitions. Complement of second has 4 states. [2020-06-22 03:21:41,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 03:21:41,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 03:21:41,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2020-06-22 03:21:41,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 03:21:41,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:21:41,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 03:21:41,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:21:41,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 03:21:41,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:21:41,747 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 21 transitions. [2020-06-22 03:21:41,748 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 03:21:41,752 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 21 transitions. [2020-06-22 03:21:41,753 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-06-22 03:21:41,754 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-06-22 03:21:41,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 21 transitions. [2020-06-22 03:21:41,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 03:21:41,755 INFO L706 BuchiCegarLoop]: Abstraction has 10 states and 21 transitions. [2020-06-22 03:21:41,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 21 transitions. [2020-06-22 03:21:41,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2020-06-22 03:21:41,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-06-22 03:21:41,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 20 transitions. [2020-06-22 03:21:41,784 INFO L729 BuchiCegarLoop]: Abstraction has 9 states and 20 transitions. [2020-06-22 03:21:41,784 INFO L609 BuchiCegarLoop]: Abstraction has 9 states and 20 transitions. [2020-06-22 03:21:41,785 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 03:21:41,785 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 20 transitions. [2020-06-22 03:21:41,786 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 03:21:41,786 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 03:21:41,786 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 03:21:41,786 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 03:21:41,786 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 03:21:41,787 INFO L794 eck$LassoCheckResult]: Stem: 51#ULTIMATE.startENTRY [33] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~p~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~q~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_1, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~p~0, ULTIMATE.start_main_~q~0, ULTIMATE.start_main_#res] 52#L21-2 [47] L21-2-->L18: Formula: (and (> v_ULTIMATE.start_main_~q~0_9 v_ULTIMATE.start_main_~p~0_10) (< 0 v_ULTIMATE.start_main_~p~0_10) (< 0 v_ULTIMATE.start_main_~q~0_9)) InVars {ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_10, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_9} OutVars{ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_10, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_9} AuxVars[] AssignedVars[] 53#L18 [2020-06-22 03:21:41,787 INFO L796 eck$LassoCheckResult]: Loop: 53#L18 [42] L18-->L21: Formula: (>= v_ULTIMATE.start_main_~q~0_12 v_ULTIMATE.start_main_~p~0_12) InVars {ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_12, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_12} OutVars{ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_12, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_12} AuxVars[] AssignedVars[] 47#L21 [43] L21-->L21-2: Formula: (>= v_ULTIMATE.start_main_~p~0_8 v_ULTIMATE.start_main_~q~0_7) InVars {ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_8, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_7} OutVars{ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_8, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_7} AuxVars[] AssignedVars[] 48#L21-2 [48] L21-2-->L18: Formula: (and (< 0 v_ULTIMATE.start_main_~p~0_10) (< v_ULTIMATE.start_main_~q~0_9 v_ULTIMATE.start_main_~p~0_10) (< 0 v_ULTIMATE.start_main_~q~0_9)) InVars {ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_10, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_9} OutVars{ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_10, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_9} AuxVars[] AssignedVars[] 53#L18 [2020-06-22 03:21:41,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:21:41,787 INFO L82 PathProgramCache]: Analyzing trace with hash 2031, now seen corresponding path program 1 times [2020-06-22 03:21:41,788 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:21:41,788 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:21:41,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:21:41,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:21:41,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:21:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:21:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:21:41,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:21:41,796 INFO L82 PathProgramCache]: Analyzing trace with hash 71534, now seen corresponding path program 1 times [2020-06-22 03:21:41,796 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:21:41,796 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:21:41,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:21:41,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:21:41,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:21:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:21:41,828 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 03:21:41,830 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 03:21:41,831 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-06-22 03:21:41,833 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 03:21:41,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 03:21:41,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 03:21:41,836 INFO L87 Difference]: Start difference. First operand 9 states and 20 transitions. cyclomatic complexity: 13 Second operand 3 states. [2020-06-22 03:21:41,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 03:21:41,856 INFO L93 Difference]: Finished difference Result 11 states and 20 transitions. [2020-06-22 03:21:41,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 03:21:41,858 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 20 transitions. [2020-06-22 03:21:41,859 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 03:21:41,860 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 8 states and 13 transitions. [2020-06-22 03:21:41,860 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 03:21:41,860 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-06-22 03:21:41,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 13 transitions. [2020-06-22 03:21:41,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 03:21:41,861 INFO L706 BuchiCegarLoop]: Abstraction has 8 states and 13 transitions. [2020-06-22 03:21:41,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 13 transitions. [2020-06-22 03:21:41,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2020-06-22 03:21:41,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-06-22 03:21:41,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2020-06-22 03:21:41,862 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-06-22 03:21:41,862 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-06-22 03:21:41,862 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 03:21:41,862 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 12 transitions. [2020-06-22 03:21:41,863 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 03:21:41,863 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 03:21:41,863 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 03:21:41,863 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 03:21:41,864 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 03:21:41,864 INFO L794 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRY [33] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~p~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~q~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_~p~0=v_ULTIMATE.start_main_~p~0_1, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_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_~p~0, ULTIMATE.start_main_~q~0, ULTIMATE.start_main_#res] 76#L21-2 [47] L21-2-->L18: Formula: (and (> v_ULTIMATE.start_main_~q~0_9 v_ULTIMATE.start_main_~p~0_10) (< 0 v_ULTIMATE.start_main_~p~0_10) (< 0 v_ULTIMATE.start_main_~q~0_9)) InVars {ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_10, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_9} OutVars{ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_10, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_9} AuxVars[] AssignedVars[] 77#L18 [2020-06-22 03:21:41,864 INFO L796 eck$LassoCheckResult]: Loop: 77#L18 [42] L18-->L21: Formula: (>= v_ULTIMATE.start_main_~q~0_12 v_ULTIMATE.start_main_~p~0_12) InVars {ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_12, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_12} OutVars{ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_12, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_12} AuxVars[] AssignedVars[] 73#L21 [43] L21-->L21-2: Formula: (>= v_ULTIMATE.start_main_~p~0_8 v_ULTIMATE.start_main_~q~0_7) InVars {ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_8, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_7} OutVars{ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_8, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_7} AuxVars[] AssignedVars[] 74#L21-2 [47] L21-2-->L18: Formula: (and (> v_ULTIMATE.start_main_~q~0_9 v_ULTIMATE.start_main_~p~0_10) (< 0 v_ULTIMATE.start_main_~p~0_10) (< 0 v_ULTIMATE.start_main_~q~0_9)) InVars {ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_10, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_9} OutVars{ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_10, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_9} AuxVars[] AssignedVars[] 77#L18 [2020-06-22 03:21:41,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:21:41,864 INFO L82 PathProgramCache]: Analyzing trace with hash 2031, now seen corresponding path program 2 times [2020-06-22 03:21:41,865 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:21:41,865 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:21:41,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:21:41,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:21:41,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:21:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:21:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:21:41,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:21:41,872 INFO L82 PathProgramCache]: Analyzing trace with hash 71533, now seen corresponding path program 1 times [2020-06-22 03:21:41,872 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:21:41,872 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:21:41,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:21:41,874 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 03:21:41,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:21:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:21:41,885 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 03:21:41,886 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 03:21:41,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 03:21:41,886 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 03:21:41,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 03:21:41,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 03:21:41,887 INFO L87 Difference]: Start difference. First operand 7 states and 12 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-06-22 03:21:41,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 03:21:41,912 INFO L93 Difference]: Finished difference Result 10 states and 13 transitions. [2020-06-22 03:21:41,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 03:21:41,913 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2020-06-22 03:21:41,914 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 03:21:41,914 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 5 states and 5 transitions. [2020-06-22 03:21:41,914 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-06-22 03:21:41,915 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-06-22 03:21:41,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 5 transitions. [2020-06-22 03:21:41,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 03:21:41,915 INFO L706 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2020-06-22 03:21:41,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 5 transitions. [2020-06-22 03:21:41,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 4. [2020-06-22 03:21:41,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 03:21:41,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4 transitions. [2020-06-22 03:21:41,916 INFO L729 BuchiCegarLoop]: Abstraction has 4 states and 4 transitions. [2020-06-22 03:21:41,916 INFO L609 BuchiCegarLoop]: Abstraction has 4 states and 4 transitions. [2020-06-22 03:21:41,917 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 03:21:41,917 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 4 transitions. [2020-06-22 03:21:41,917 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 03:21:41,917 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 03:21:41,917 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 03:21:41,917 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 03:21:41,918 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 03:21:41,918 INFO L794 eck$LassoCheckResult]: Stem: 98#ULTIMATE.startENTRY [33] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~p~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~q~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_1, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~p~0, ULTIMATE.start_main_~q~0, ULTIMATE.start_main_#res] 97#L21-2 [2020-06-22 03:21:41,918 INFO L796 eck$LassoCheckResult]: Loop: 97#L21-2 [47] L21-2-->L18: Formula: (and (> v_ULTIMATE.start_main_~q~0_9 v_ULTIMATE.start_main_~p~0_10) (< 0 v_ULTIMATE.start_main_~p~0_10) (< 0 v_ULTIMATE.start_main_~q~0_9)) InVars {ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_10, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_9} OutVars{ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_10, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_9} AuxVars[] AssignedVars[] 99#L18 [42] L18-->L21: Formula: (>= v_ULTIMATE.start_main_~q~0_12 v_ULTIMATE.start_main_~p~0_12) InVars {ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_12, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_12} OutVars{ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_12, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_12} AuxVars[] AssignedVars[] 96#L21 [31] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~p~0_6 (+ v_ULTIMATE.start_main_~p~0_7 (- 1))) (< v_ULTIMATE.start_main_~p~0_7 v_ULTIMATE.start_main_~q~0_6)) InVars {ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_7, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_6} OutVars{ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_6, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~p~0] 97#L21-2 [2020-06-22 03:21:41,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:21:41,919 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 2 times [2020-06-22 03:21:41,919 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:21:41,919 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:21:41,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:21:41,920 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:21:41,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:21:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:21:41,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:21:41,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:21:41,924 INFO L82 PathProgramCache]: Analyzing trace with hash 76291, now seen corresponding path program 1 times [2020-06-22 03:21:41,924 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:21:41,924 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:21:41,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:21:41,926 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 03:21:41,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:21:41,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:21:41,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:21:41,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:21:41,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1953124, now seen corresponding path program 1 times [2020-06-22 03:21:41,931 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:21:41,932 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:21:41,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:21:41,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:21:41,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:21:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:21:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:21:41,961 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 03:21:41,962 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 03:21:41,962 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 03:21:41,962 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 03:21:41,962 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 03:21:41,962 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:21:41,962 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 03:21:41,962 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 03:21:41,963 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 03:21:41,963 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 03:21:41,963 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 03:21:41,964 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 03:21:41,967 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 03:21:41,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:21:42,038 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 03:21:42,038 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:21:42,047 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:21:42,047 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:21:42,074 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 03:21:42,074 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 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 03:21:42,080 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:21:42,080 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:21:42,107 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 03:21:42,107 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 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 03:21:42,113 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:21:42,113 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:21:42,145 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 03:21:42,146 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:21:42,178 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 03:21:42,180 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 03:21:42,180 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 03:21:42,180 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 03:21:42,180 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 03:21:42,180 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 03:21:42,181 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 03:21:42,181 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 03:21:42,181 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 03:21:42,181 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 03:21:42,181 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 03:21:42,181 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 03:21:42,183 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 03:21:42,188 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 03:21:42,192 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 03:21:42,245 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 03:21:42,246 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 03:21:42,246 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 03:21:42,247 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:21:42,247 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:21:42,247 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:21:42,247 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:21:42,249 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 03:21:42,249 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 03:21:42,253 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 03:21:42,254 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 03:21:42,254 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:21:42,254 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:21:42,254 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:21:42,255 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:21:42,257 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 03:21:42,257 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 03:21:42,262 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 03:21:42,263 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 03:21:42,263 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:21:42,263 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:21:42,263 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:21:42,264 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:21:42,264 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:21:42,265 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:21:42,265 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:21:42,269 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 03:21:42,273 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 03:21:42,273 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 03:21:42,273 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 03:21:42,273 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 03:21:42,273 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 03:21:42,274 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~p~0) = 1*ULTIMATE.start_main_~p~0 Supporting invariants [] [2020-06-22 03:21:42,274 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 03:21:42,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:21:42,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:21:42,308 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 03:21:42,308 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:21:42,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:21:42,312 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 03:21:42,313 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:21:42,323 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 03:21:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:21:42,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 03:21:42,347 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:21:42,380 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 03:21:42,380 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 03:21:42,380 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states and 4 transitions. cyclomatic complexity: 1 Second operand 3 states. [2020-06-22 03:21:42,402 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states and 4 transitions. cyclomatic complexity: 1. Second operand 3 states. Result 7 states and 8 transitions. Complement of second has 4 states. [2020-06-22 03:21:42,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 03:21:42,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 03:21:42,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-06-22 03:21:42,403 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 03:21:42,403 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:21:42,403 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 03:21:42,404 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:21:42,404 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 03:21:42,404 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:21:42,405 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 8 transitions. [2020-06-22 03:21:42,406 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 03:21:42,406 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 0 states and 0 transitions. [2020-06-22 03:21:42,406 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 03:21:42,406 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 03:21:42,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 03:21:42,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 03:21:42,406 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 03:21:42,407 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 03:21:42,407 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 03:21:42,407 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 03:21:42,407 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 03:21:42,407 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 03:21:42,407 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 03:21:42,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 03:21:42 BasicIcfg [2020-06-22 03:21:42,414 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 03:21:42,414 INFO L168 Benchmark]: Toolchain (without parser) took 2259.33 ms. Allocated memory was 514.9 MB in the beginning and 597.7 MB in the end (delta: 82.8 MB). Free memory was 439.8 MB in the beginning and 509.9 MB in the end (delta: -70.2 MB). Peak memory consumption was 12.7 MB. Max. memory is 50.3 GB. [2020-06-22 03:21:42,416 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 514.9 MB. Free memory is still 459.6 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 03:21:42,416 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.82 ms. Allocated memory was 514.9 MB in the beginning and 569.9 MB in the end (delta: 55.1 MB). Free memory was 439.3 MB in the beginning and 539.5 MB in the end (delta: -100.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 50.3 GB. [2020-06-22 03:21:42,417 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.23 ms. Allocated memory is still 569.9 MB. Free memory was 539.5 MB in the beginning and 537.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. [2020-06-22 03:21:42,418 INFO L168 Benchmark]: Boogie Preprocessor took 18.93 ms. Allocated memory is still 569.9 MB. Free memory was 537.9 MB in the beginning and 535.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 50.3 GB. [2020-06-22 03:21:42,418 INFO L168 Benchmark]: RCFGBuilder took 199.67 ms. Allocated memory is still 569.9 MB. Free memory was 535.9 MB in the beginning and 525.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 50.3 GB. [2020-06-22 03:21:42,419 INFO L168 Benchmark]: BlockEncodingV2 took 72.99 ms. Allocated memory is still 569.9 MB. Free memory was 525.1 MB in the beginning and 519.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 03:21:42,419 INFO L168 Benchmark]: TraceAbstraction took 152.06 ms. Allocated memory is still 569.9 MB. Free memory was 519.8 MB in the beginning and 511.0 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. [2020-06-22 03:21:42,420 INFO L168 Benchmark]: BuchiAutomizer took 1491.56 ms. Allocated memory was 569.9 MB in the beginning and 597.7 MB in the end (delta: 27.8 MB). Free memory was 510.5 MB in the beginning and 509.9 MB in the end (delta: 531.2 kB). Peak memory consumption was 28.3 MB. Max. memory is 50.3 GB. [2020-06-22 03:21:42,424 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 514.9 MB. Free memory is still 459.6 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 283.82 ms. Allocated memory was 514.9 MB in the beginning and 569.9 MB in the end (delta: 55.1 MB). Free memory was 439.3 MB in the beginning and 539.5 MB in the end (delta: -100.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.23 ms. Allocated memory is still 569.9 MB. Free memory was 539.5 MB in the beginning and 537.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.93 ms. Allocated memory is still 569.9 MB. Free memory was 537.9 MB in the beginning and 535.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 50.3 GB. * RCFGBuilder took 199.67 ms. Allocated memory is still 569.9 MB. Free memory was 535.9 MB in the beginning and 525.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 72.99 ms. Allocated memory is still 569.9 MB. Free memory was 525.1 MB in the beginning and 519.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 152.06 ms. Allocated memory is still 569.9 MB. Free memory was 519.8 MB in the beginning and 511.0 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1491.56 ms. Allocated memory was 569.9 MB in the beginning and 597.7 MB in the end (delta: 27.8 MB). Free memory was 510.5 MB in the beginning and 509.9 MB in the end (delta: 531.2 kB). Peak memory consumption was 28.3 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: 17]: 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 4 terminating modules (2 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function q and consists of 3 locations. One nondeterministic module has affine ranking function p and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 9 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 23 SDslu, 0 SDs, 0 SdLazy, 52 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax192 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 03:21:36.964 ----------------------------------------------- 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 03:21:42.656 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check