YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 02:14:09,255 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 02:14:09,257 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 02:14:09,269 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 02:14:09,269 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 02:14:09,270 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 02:14:09,272 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 02:14:09,273 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 02:14:09,275 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 02:14:09,275 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 02:14:09,276 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 02:14:09,276 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 02:14:09,277 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 02:14:09,278 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 02:14:09,279 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 02:14:09,280 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 02:14:09,281 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 02:14:09,282 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 02:14:09,284 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 02:14:09,286 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 02:14:09,287 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 02:14:09,288 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 02:14:09,290 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 02:14:09,290 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 02:14:09,290 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 02:14:09,291 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 02:14:09,292 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 02:14:09,292 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 02:14:09,293 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 02:14:09,293 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 02:14:09,294 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 02:14:09,295 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 02:14:09,295 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 02:14:09,296 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 02:14:09,296 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 02:14:09,296 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 02:14:09,297 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 02:14:09,297 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 02:14:09,298 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 02:14:09,298 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 02:14:09,312 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 02:14:09,313 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 02:14:09,314 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 02:14:09,314 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 02:14:09,314 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 02:14:09,314 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 02:14:09,315 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 02:14:09,315 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 02:14:09,315 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 02:14:09,315 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 02:14:09,315 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 02:14:09,315 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 02:14:09,316 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 02:14:09,316 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 02:14:09,316 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:14:09,316 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 02:14:09,316 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 02:14:09,317 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 02:14:09,317 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 02:14:09,317 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 02:14:09,317 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 02:14:09,317 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 02:14:09,317 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 02:14:09,318 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 02:14:09,318 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 02:14:09,318 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 02:14:09,318 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 02:14:09,318 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 02:14:09,318 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 02:14:09,344 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 02:14:09,357 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 02:14:09,361 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 02:14:09,362 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 02:14:09,362 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 02:14:09,363 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 02:14:09,429 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/f696faa66a804d6e9b76536d7208e3e6/FLAGd98b6c0e8 [2020-06-22 02:14:09,766 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 02:14:09,766 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 02:14:09,773 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/f696faa66a804d6e9b76536d7208e3e6/FLAGd98b6c0e8 [2020-06-22 02:14:10,183 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/f696faa66a804d6e9b76536d7208e3e6 [2020-06-22 02:14:10,194 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 02:14:10,195 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 02:14:10,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 02:14:10,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 02:14:10,201 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 02:14:10,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 02:14:10" (1/1) ... [2020-06-22 02:14:10,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@99d4cd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:14:10, skipping insertion in model container [2020-06-22 02:14:10,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 02:14:10" (1/1) ... [2020-06-22 02:14:10,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 02:14:10,230 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 02:14:10,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 02:14:10,393 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 02:14:10,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 02:14:10,484 INFO L195 MainTranslator]: Completed translation [2020-06-22 02:14:10,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:14:10 WrapperNode [2020-06-22 02:14:10,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 02:14:10,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 02:14:10,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 02:14:10,486 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 02:14:10,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:14:10" (1/1) ... [2020-06-22 02:14:10,503 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:14:10" (1/1) ... [2020-06-22 02:14:10,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 02:14:10,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 02:14:10,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 02:14:10,523 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 02:14:10,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:14:10" (1/1) ... [2020-06-22 02:14:10,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:14:10" (1/1) ... [2020-06-22 02:14:10,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:14:10" (1/1) ... [2020-06-22 02:14:10,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:14:10" (1/1) ... [2020-06-22 02:14:10,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:14:10" (1/1) ... [2020-06-22 02:14:10,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:14:10" (1/1) ... [2020-06-22 02:14:10,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:14:10" (1/1) ... [2020-06-22 02:14:10,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 02:14:10,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 02:14:10,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 02:14:10,544 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 02:14:10,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:14:10" (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 02:14:10,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 02:14:10,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 02:14:10,744 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 02:14:10,744 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 02:14:10,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:14:10 BoogieIcfgContainer [2020-06-22 02:14:10,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 02:14:10,746 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 02:14:10,746 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 02:14:10,749 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 02:14:10,749 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:14:10" (1/1) ... [2020-06-22 02:14:10,765 INFO L313 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2020-06-22 02:14:10,767 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 02:14:10,768 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 02:14:10,768 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 02:14:10,769 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 02:14:10,771 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 02:14:10,772 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 02:14:10,772 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 02:14:10,786 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 02:14:10,794 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 02:14:10,799 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 02:14:10,801 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 02:14:10,823 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 02:14:10,825 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 02:14:10,826 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 02:14:10,826 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 02:14:10,827 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 02:14:10,827 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 02:14:10,827 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 2 edges [2020-06-22 02:14:10,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:14:10 BasicIcfg [2020-06-22 02:14:10,828 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 02:14:10,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 02:14:10,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 02:14:10,832 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 02:14:10,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 02:14:10" (1/4) ... [2020-06-22 02:14:10,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1105de6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:14:10, skipping insertion in model container [2020-06-22 02:14:10,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:14:10" (2/4) ... [2020-06-22 02:14:10,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1105de6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:14:10, skipping insertion in model container [2020-06-22 02:14:10,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:14:10" (3/4) ... [2020-06-22 02:14:10,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1105de6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:14:10, skipping insertion in model container [2020-06-22 02:14:10,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:14:10" (4/4) ... [2020-06-22 02:14:10,836 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 02:14:10,845 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 02:14:10,853 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 02:14:10,870 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 02:14:10,898 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 02:14:10,899 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 02:14:10,899 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 02:14:10,899 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 02:14:10,899 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 02:14:10,899 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 02:14:10,899 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 02:14:10,900 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 02:14:10,900 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 02:14:10,914 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-06-22 02:14:10,919 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 02:14:10,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-06-22 02:14:10,970 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 02:14:10,970 INFO L451 ceAbstractionStarter]: At program point L27-2(lines 27 30) the Hoare annotation is: true [2020-06-22 02:14:10,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:14:10 BasicIcfg [2020-06-22 02:14:10,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 02:14:10,979 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 02:14:10,979 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 02:14:10,982 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 02:14:10,983 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:14:10,983 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 02:14:10" (1/5) ... [2020-06-22 02:14:10,984 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@751808fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 02:14:10, skipping insertion in model container [2020-06-22 02:14:10,984 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:14:10,984 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:14:10" (2/5) ... [2020-06-22 02:14:10,984 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@751808fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 02:14:10, skipping insertion in model container [2020-06-22 02:14:10,985 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:14:10,985 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:14:10" (3/5) ... [2020-06-22 02:14:10,985 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@751808fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:14:10, skipping insertion in model container [2020-06-22 02:14:10,985 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:14:10,985 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:14:10" (4/5) ... [2020-06-22 02:14:10,986 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@751808fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:14:10, skipping insertion in model container [2020-06-22 02:14:10,986 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:14:10,986 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:14:10" (5/5) ... [2020-06-22 02:14:10,987 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 02:14:11,014 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 02:14:11,014 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 02:14:11,014 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 02:14:11,014 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 02:14:11,015 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 02:14:11,015 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 02:14:11,015 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 02:14:11,015 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 02:14:11,015 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 02:14:11,018 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-22 02:14:11,035 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 02:14:11,035 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:14:11,035 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:14:11,040 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 02:14:11,040 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 02:14:11,040 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 02:14:11,041 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-22 02:14:11,041 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 02:14:11,041 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:14:11,041 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:14:11,042 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 02:14:11,042 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 02:14:11,047 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [19] ULTIMATE.startENTRY-->L27-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 4#L27-2true [2020-06-22 02:14:11,047 INFO L796 eck$LassoCheckResult]: Loop: 4#L27-2true [24] L27-2-->L27-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~z~0_6) (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_8 1)) (< v_ULTIMATE.start_main_~x~0_8 v_ULTIMATE.start_main_~y~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 4#L27-2true [2020-06-22 02:14:11,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:14:11,054 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2020-06-22 02:14:11,056 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:14:11,056 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:14:11,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:14:11,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:14:11,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:14:11,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:14:11,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:14:11,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:14:11,125 INFO L82 PathProgramCache]: Analyzing trace with hash 55, now seen corresponding path program 1 times [2020-06-22 02:14:11,125 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:14:11,125 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:14:11,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:14:11,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:14:11,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:14:11,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:14:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:14:11,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:14:11,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1574, now seen corresponding path program 1 times [2020-06-22 02:14:11,138 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:14:11,139 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:14:11,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:14:11,140 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:14:11,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:14:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:14:11,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:14:11,188 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:14:11,189 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:14:11,189 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:14:11,189 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:14:11,190 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:14:11,190 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:14:11,190 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:14:11,190 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:14:11,190 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 02:14:11,190 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:14:11,191 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:14:11,211 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 02:14:11,221 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 02:14:11,225 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 02:14:11,326 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:14:11,327 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 02:14:11,341 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:14:11,341 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:14:11,374 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:14:11,375 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 02:14:11,380 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:14:11,380 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:14:11,407 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:14:11,408 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 02:14:11,412 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:14:11,413 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 02:14:11,444 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:14:11,445 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:14:13,969 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 02:14:13,973 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:14:13,973 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:14:13,973 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:14:13,973 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:14:13,974 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 02:14:13,974 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 02:14:13,974 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:14:13,974 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:14:13,974 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 02:14:13,974 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:14:13,974 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:14:13,976 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 02:14:13,981 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 02:14:13,984 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 02:14:14,060 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:14:14,066 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 02:14:14,068 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 02:14:14,070 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:14:14,070 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:14:14,070 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:14:14,070 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:14:14,075 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 02:14:14,076 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 02:14:14,085 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:14:14,085 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 02:14:14,086 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:14:14,086 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:14:14,086 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:14:14,087 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:14:14,089 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 02:14:14,090 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 02:14:14,099 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:14:14,099 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 02:14:14,100 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:14:14,100 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:14:14,101 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:14:14,101 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:14:14,101 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:14:14,102 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:14:14,103 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:14:14,113 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:14:14,114 INFO L497 LassoAnalysis]: Using template '2-nested'. [2020-06-22 02:14:14,114 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 02:14:14,115 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:14:14,116 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:14:14,116 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:14:14,116 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 02:14:14,119 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-06-22 02:14:14,119 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-06-22 02:14:14,126 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:14:14,127 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 02:14:14,128 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:14:14,128 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:14:14,128 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:14:14,128 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 02:14:14,131 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-06-22 02:14:14,132 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-06-22 02:14:14,142 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:14:14,142 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 02:14:14,143 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:14:14,143 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:14:14,143 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:14:14,144 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:14:14,144 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 02:14:14,145 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-06-22 02:14:14,145 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:14:14,157 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 02:14:14,181 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-06-22 02:14:14,181 INFO L444 ModelExtractionUtils]: 2 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. [2020-06-22 02:14:14,184 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 02:14:14,184 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 02:14:14,184 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 02:14:14,185 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~z~0 - 1*ULTIMATE.start_main_~x~0 f1 = -1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-06-22 02:14:14,187 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 02:14:14,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:14:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:14:14,236 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 02:14:14,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:14:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:14:14,248 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2020-06-22 02:14:14,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:14:14,249 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 02:14:14,281 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 02:14:14,286 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 02:14:14,287 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 2 states. Second operand 2 states. [2020-06-22 02:14:14,306 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 2 states.. Second operand 2 states. Result 3 states and 3 transitions. Complement of second has 2 states. [2020-06-22 02:14:14,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-06-22 02:14:14,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 02:14:14,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2020-06-22 02:14:14,310 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 1 letters. Loop has 1 letters. [2020-06-22 02:14:14,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:14:14,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 2 letters. Loop has 1 letters. [2020-06-22 02:14:14,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:14:14,313 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 02:14:14,313 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:14:14,318 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3 states and 3 transitions. [2020-06-22 02:14:14,318 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 02:14:14,321 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3 states to 0 states and 0 transitions. [2020-06-22 02:14:14,322 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 02:14:14,322 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 02:14:14,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 02:14:14,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 02:14:14,323 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:14:14,323 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:14:14,323 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:14:14,323 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 02:14:14,324 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 02:14:14,324 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 02:14:14,324 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 02:14:14,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:14:14 BasicIcfg [2020-06-22 02:14:14,330 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 02:14:14,330 INFO L168 Benchmark]: Toolchain (without parser) took 4135.82 ms. Allocated memory was 649.6 MB in the beginning and 665.3 MB in the end (delta: 15.7 MB). Free memory was 563.7 MB in the beginning and 518.5 MB in the end (delta: 45.2 MB). Peak memory consumption was 60.9 MB. Max. memory is 50.3 GB. [2020-06-22 02:14:14,332 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 02:14:14,333 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.71 ms. Allocated memory was 649.6 MB in the beginning and 665.3 MB in the end (delta: 15.7 MB). Free memory was 563.7 MB in the beginning and 633.3 MB in the end (delta: -69.7 MB). Peak memory consumption was 29.3 MB. Max. memory is 50.3 GB. [2020-06-22 02:14:14,333 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.06 ms. Allocated memory is still 665.3 MB. Free memory was 632.3 MB in the beginning and 631.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 02:14:14,334 INFO L168 Benchmark]: Boogie Preprocessor took 20.93 ms. Allocated memory is still 665.3 MB. Free memory was 631.2 MB in the beginning and 630.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 02:14:14,335 INFO L168 Benchmark]: RCFGBuilder took 201.67 ms. Allocated memory is still 665.3 MB. Free memory was 630.1 MB in the beginning and 616.0 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 50.3 GB. [2020-06-22 02:14:14,335 INFO L168 Benchmark]: BlockEncodingV2 took 81.74 ms. Allocated memory is still 665.3 MB. Free memory was 614.9 MB in the beginning and 610.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. [2020-06-22 02:14:14,336 INFO L168 Benchmark]: TraceAbstraction took 149.62 ms. Allocated memory is still 665.3 MB. Free memory was 610.6 MB in the beginning and 602.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-06-22 02:14:14,336 INFO L168 Benchmark]: BuchiAutomizer took 3350.91 ms. Allocated memory is still 665.3 MB. Free memory was 602.0 MB in the beginning and 518.5 MB in the end (delta: 83.5 MB). Peak memory consumption was 83.5 MB. Max. memory is 50.3 GB. [2020-06-22 02:14:14,341 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 6 locations, 7 edges - StatisticsResult: Encoded RCFG 2 locations, 2 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 288.71 ms. Allocated memory was 649.6 MB in the beginning and 665.3 MB in the end (delta: 15.7 MB). Free memory was 563.7 MB in the beginning and 633.3 MB in the end (delta: -69.7 MB). Peak memory consumption was 29.3 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 37.06 ms. Allocated memory is still 665.3 MB. Free memory was 632.3 MB in the beginning and 631.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.93 ms. Allocated memory is still 665.3 MB. Free memory was 631.2 MB in the beginning and 630.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 201.67 ms. Allocated memory is still 665.3 MB. Free memory was 630.1 MB in the beginning and 616.0 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 81.74 ms. Allocated memory is still 665.3 MB. Free memory was 614.9 MB in the beginning and 610.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. * TraceAbstraction took 149.62 ms. Allocated memory is still 665.3 MB. Free memory was 610.6 MB in the beginning and 602.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 3350.91 ms. Allocated memory is still 665.3 MB. Free memory was 602.0 MB in the beginning and 518.5 MB in the end (delta: 83.5 MB). Peak memory consumption was 83.5 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: 27]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has 2-nested ranking function (if z + -1 * x > 0 then 1 else 0), (if z + -1 * x > 0 then z + -1 * x else -1 * x + y) and consists of 2 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 2 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax192 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq176 hnf91 smp100 dnf100 smp100 tf109 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 02:14:06.957 ----------------------------------------------- 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 02:14:14.573 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check