NO Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 04:42:40,265 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 04:42:40,267 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 04:42:40,278 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 04:42:40,278 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 04:42:40,279 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 04:42:40,280 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 04:42:40,282 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 04:42:40,283 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 04:42:40,284 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 04:42:40,285 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 04:42:40,285 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 04:42:40,286 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 04:42:40,287 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 04:42:40,288 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 04:42:40,289 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 04:42:40,289 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 04:42:40,291 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 04:42:40,293 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 04:42:40,294 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 04:42:40,295 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 04:42:40,296 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 04:42:40,298 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 04:42:40,298 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 04:42:40,299 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 04:42:40,299 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 04:42:40,300 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 04:42:40,301 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 04:42:40,301 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 04:42:40,302 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 04:42:40,302 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 04:42:40,303 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 04:42:40,304 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 04:42:40,304 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 04:42:40,305 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 04:42:40,305 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 04:42:40,305 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 04:42:40,306 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 04:42:40,307 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 04:42:40,307 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 04:42:40,321 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 04:42:40,322 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 04:42:40,323 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 04:42:40,323 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 04:42:40,323 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 04:42:40,323 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 04:42:40,323 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 04:42:40,323 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 04:42:40,324 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 04:42:40,324 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 04:42:40,324 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 04:42:40,324 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 04:42:40,324 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 04:42:40,324 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 04:42:40,324 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:42:40,325 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 04:42:40,325 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 04:42:40,325 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 04:42:40,325 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 04:42:40,325 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 04:42:40,325 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 04:42:40,326 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 04:42:40,326 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 04:42:40,326 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 04:42:40,326 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 04:42:40,326 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 04:42:40,326 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 04:42:40,327 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 04:42:40,327 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 04:42:40,352 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 04:42:40,366 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 04:42:40,370 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 04:42:40,371 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 04:42:40,372 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 04:42:40,372 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 04:42:40,436 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/9e2f075c86b14b7b8f874a0ad614f073/FLAG1f8511957 [2020-06-22 04:42:40,769 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 04:42:40,770 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 04:42:40,776 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/9e2f075c86b14b7b8f874a0ad614f073/FLAG1f8511957 [2020-06-22 04:42:41,177 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/9e2f075c86b14b7b8f874a0ad614f073 [2020-06-22 04:42:41,188 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 04:42:41,190 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 04:42:41,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 04:42:41,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 04:42:41,195 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 04:42:41,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 04:42:41" (1/1) ... [2020-06-22 04:42:41,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e4605b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:42:41, skipping insertion in model container [2020-06-22 04:42:41,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 04:42:41" (1/1) ... [2020-06-22 04:42:41,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 04:42:41,223 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 04:42:41,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 04:42:41,378 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 04:42:41,445 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 04:42:41,459 INFO L195 MainTranslator]: Completed translation [2020-06-22 04:42:41,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:42:41 WrapperNode [2020-06-22 04:42:41,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 04:42:41,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 04:42:41,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 04:42:41,461 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 04:42:41,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:42:41" (1/1) ... [2020-06-22 04:42:41,475 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:42:41" (1/1) ... [2020-06-22 04:42:41,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 04:42:41,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 04:42:41,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 04:42:41,494 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 04:42:41,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:42:41" (1/1) ... [2020-06-22 04:42:41,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:42:41" (1/1) ... [2020-06-22 04:42:41,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:42:41" (1/1) ... [2020-06-22 04:42:41,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:42:41" (1/1) ... [2020-06-22 04:42:41,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:42:41" (1/1) ... [2020-06-22 04:42:41,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:42:41" (1/1) ... [2020-06-22 04:42:41,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:42:41" (1/1) ... [2020-06-22 04:42:41,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 04:42:41,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 04:42:41,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 04:42:41,513 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 04:42:41,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:42:41" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 04:42:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 04:42:41,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 04:42:41,699 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 04:42:41,699 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 04:42:41,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:42:41 BoogieIcfgContainer [2020-06-22 04:42:41,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 04:42:41,701 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 04:42:41,701 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 04:42:41,703 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 04:42:41,704 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:42:41" (1/1) ... [2020-06-22 04:42:41,717 INFO L313 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2020-06-22 04:42:41,718 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 04:42:41,719 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 04:42:41,720 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 04:42:41,720 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 04:42:41,722 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 04:42:41,723 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 04:42:41,723 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 04:42:41,735 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 04:42:41,742 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 04:42:41,747 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 04:42:41,749 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 04:42:41,762 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 04:42:41,765 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 04:42:41,766 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 04:42:41,766 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 04:42:41,766 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 04:42:41,767 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 04:42:41,767 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 2 edges [2020-06-22 04:42:41,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 04:42:41 BasicIcfg [2020-06-22 04:42:41,768 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 04:42:41,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 04:42:41,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 04:42:41,772 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 04:42:41,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 04:42:41" (1/4) ... [2020-06-22 04:42:41,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f55d481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 04:42:41, skipping insertion in model container [2020-06-22 04:42:41,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:42:41" (2/4) ... [2020-06-22 04:42:41,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f55d481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 04:42:41, skipping insertion in model container [2020-06-22 04:42:41,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:42:41" (3/4) ... [2020-06-22 04:42:41,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f55d481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:42:41, skipping insertion in model container [2020-06-22 04:42:41,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 04:42:41" (4/4) ... [2020-06-22 04:42:41,776 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 04:42:41,786 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 04:42:41,793 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 04:42:41,810 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 04:42:41,840 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 04:42:41,841 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 04:42:41,841 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 04:42:41,841 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 04:42:41,841 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 04:42:41,841 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 04:42:41,842 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 04:42:41,842 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 04:42:41,842 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 04:42:41,857 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-06-22 04:42:41,863 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 04:42:41,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-06-22 04:42:41,923 INFO L451 ceAbstractionStarter]: At program point L16-2(lines 16 18) the Hoare annotation is: true [2020-06-22 04:42:41,923 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 04:42:41,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:42:41 BasicIcfg [2020-06-22 04:42:41,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 04:42:41,932 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 04:42:41,932 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 04:42:41,935 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 04:42:41,936 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:42:41,936 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 04:42:41" (1/5) ... [2020-06-22 04:42:41,937 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d388b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 04:42:41, skipping insertion in model container [2020-06-22 04:42:41,937 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:42:41,937 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:42:41" (2/5) ... [2020-06-22 04:42:41,937 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d388b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 04:42:41, skipping insertion in model container [2020-06-22 04:42:41,937 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:42:41,938 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:42:41" (3/5) ... [2020-06-22 04:42:41,938 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d388b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 04:42:41, skipping insertion in model container [2020-06-22 04:42:41,938 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:42:41,938 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 04:42:41" (4/5) ... [2020-06-22 04:42:41,939 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d388b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 04:42:41, skipping insertion in model container [2020-06-22 04:42:41,939 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:42:41,939 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:42:41" (5/5) ... [2020-06-22 04:42:41,941 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 04:42:41,968 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 04:42:41,968 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 04:42:41,968 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 04:42:41,968 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 04:42:41,968 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 04:42:41,969 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 04:42:41,969 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 04:42:41,969 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 04:42:41,969 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 04:42:41,972 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-22 04:42:41,988 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 04:42:41,989 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:42:41,989 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:42:41,994 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 04:42:41,994 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 04:42:41,994 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 04:42:41,994 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-22 04:42:41,995 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 04:42:41,995 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:42:41,995 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:42:41,995 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 04:42:41,996 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 04:42:42,000 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [18] ULTIMATE.startENTRY-->L16-2: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 4#L16-2true [2020-06-22 04:42:42,001 INFO L796 eck$LassoCheckResult]: Loop: 4#L16-2true [24] L16-2-->L16-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_8 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 4#L16-2true [2020-06-22 04:42:42,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:42:42,007 INFO L82 PathProgramCache]: Analyzing trace with hash 49, now seen corresponding path program 1 times [2020-06-22 04:42:42,009 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:42:42,009 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:42:42,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:42:42,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:42:42,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:42:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:42:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:42:42,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:42:42,076 INFO L82 PathProgramCache]: Analyzing trace with hash 55, now seen corresponding path program 1 times [2020-06-22 04:42:42,076 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:42:42,076 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:42:42,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:42:42,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:42:42,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:42:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:42:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:42:42,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:42:42,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1543, now seen corresponding path program 1 times [2020-06-22 04:42:42,088 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:42:42,089 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:42:42,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:42:42,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:42:42,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:42:42,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:42:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:42:42,141 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:42:42,142 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:42:42,143 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:42:42,143 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:42:42,143 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 04:42:42,143 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:42:42,143 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:42:42,143 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:42:42,144 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 04:42:42,144 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:42:42,144 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:42:42,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:42:42,173 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 04:42:42,185 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 04:42:42,254 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:42:42,255 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 04:42:42,262 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:42:42,262 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:42:42,296 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:42:42,296 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 04:42:42,302 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:42:42,302 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:42:42,330 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:42:42,330 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 04:42:42,335 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:42:42,335 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 04:42:42,365 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 04:42:42,365 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:42:42,378 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:42:42,378 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [0, 1, 0] Nus: [0, 0] [2020-06-22 04:42:42,410 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:42:42,410 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:42:42,410 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:42:42,410 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:42:42,410 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 04:42:42,411 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:42:42,411 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:42:42,411 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:42:42,411 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-06-22 04:42:42,411 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:42:42,411 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:42:42,413 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 04:42:42,417 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 04:42:42,428 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 04:42:42,433 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 04:42:42,437 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 04:42:42,514 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:42:42,514 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 04:42:42,519 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:42:42,519 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:42:42,523 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:42:42,523 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=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 04:42:42,551 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:42:42,551 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:42:42,579 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:42:42,579 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_2=0} Honda state: {v_rep~unnamed0~0~false_2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:42:42,584 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:42:42,584 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:42:42,589 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:42:42,589 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:42:42,616 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:42:42,616 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:42:42,644 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:42:42,644 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_2=1} Honda state: {v_rep~unnamed0~0~true_2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:42:42,649 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:42:42,649 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:42:42,679 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 04:42:42,679 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:42:42,690 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:42:42,691 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [0, 1, 0] Nus: [0, 0] [2020-06-22 04:42:42,725 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:42:42,727 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:42:42,728 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:42:42,728 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:42:42,728 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:42:42,729 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:42:42,729 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:42:42,729 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:42:42,730 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:42:42,730 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:42:42,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 04:42:42 BasicIcfg [2020-06-22 04:42:42,740 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 04:42:42,741 INFO L168 Benchmark]: Toolchain (without parser) took 1552.21 ms. Allocated memory was 649.6 MB in the beginning and 694.7 MB in the end (delta: 45.1 MB). Free memory was 559.9 MB in the beginning and 555.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 49.6 MB. Max. memory is 50.3 GB. [2020-06-22 04:42:42,743 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 649.6 MB. Free memory is still 580.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 04:42:42,743 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.64 ms. Allocated memory was 649.6 MB in the beginning and 694.7 MB in the end (delta: 45.1 MB). Free memory was 559.9 MB in the beginning and 659.6 MB in the end (delta: -99.7 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. [2020-06-22 04:42:42,744 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.02 ms. Allocated memory is still 694.7 MB. Free memory was 659.6 MB in the beginning and 656.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. [2020-06-22 04:42:42,745 INFO L168 Benchmark]: Boogie Preprocessor took 17.97 ms. Allocated memory is still 694.7 MB. Free memory is still 656.9 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 04:42:42,745 INFO L168 Benchmark]: RCFGBuilder took 187.96 ms. Allocated memory is still 694.7 MB. Free memory was 655.6 MB in the beginning and 643.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 50.3 GB. [2020-06-22 04:42:42,746 INFO L168 Benchmark]: BlockEncodingV2 took 66.86 ms. Allocated memory is still 694.7 MB. Free memory was 643.9 MB in the beginning and 639.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. [2020-06-22 04:42:42,746 INFO L168 Benchmark]: TraceAbstraction took 162.59 ms. Allocated memory is still 694.7 MB. Free memory was 638.5 MB in the beginning and 630.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-06-22 04:42:42,747 INFO L168 Benchmark]: BuchiAutomizer took 808.99 ms. Allocated memory is still 694.7 MB. Free memory was 630.3 MB in the beginning and 555.4 MB in the end (delta: 74.9 MB). Peak memory consumption was 74.9 MB. Max. memory is 50.3 GB. [2020-06-22 04:42:42,751 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 0.15 ms. Allocated memory is still 649.6 MB. Free memory is still 580.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 269.64 ms. Allocated memory was 649.6 MB in the beginning and 694.7 MB in the end (delta: 45.1 MB). Free memory was 559.9 MB in the beginning and 659.6 MB in the end (delta: -99.7 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.02 ms. Allocated memory is still 694.7 MB. Free memory was 659.6 MB in the beginning and 656.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 17.97 ms. Allocated memory is still 694.7 MB. Free memory is still 656.9 MB. There was no memory consumed. Max. memory is 50.3 GB. * RCFGBuilder took 187.96 ms. Allocated memory is still 694.7 MB. Free memory was 655.6 MB in the beginning and 643.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 66.86 ms. Allocated memory is still 694.7 MB. Free memory was 643.9 MB in the beginning and 639.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. * TraceAbstraction took 162.59 ms. Allocated memory is still 694.7 MB. Free memory was 638.5 MB in the beginning and 630.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 808.99 ms. Allocated memory is still 694.7 MB. Free memory was 630.3 MB in the beginning and 555.4 MB in the end (delta: 74.9 MB). Peak memory consumption was 74.9 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false * 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: 16]: 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 16]: Nontermination argument in form of an infinite program execution. [2020-06-22 04:42:42,760 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:42:42,762 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:42:42,762 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:42:42,762 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:42:42,763 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:42:42,763 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:42:42,763 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:42:42,764 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:42:42,764 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:42:42,764 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:42:42,765 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:42:42,765 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:42:42,765 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:42:42,766 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:42:42,766 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:42:42,766 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:42:42,767 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:42:42,767 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:42:42,767 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:42:42,767 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false Nontermination argument in form of an infinite execution {|ULTIMATE.start_main_#t~nondet0|=0, ~unnamed0~0~false=0, ULTIMATE.start_main_~x~0=0, |ULTIMATE.start_main_#res|=0, ~unnamed0~0~true=1} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46c40e73=0, \result=0, ~unnamed0~0~true=1, ~unnamed0~0~false=0, x=0} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46c40e73=0, \result=0, ~unnamed0~0~true=1, ~unnamed0~0~false=0, x=1} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46c40e73=0, \result=0, ~unnamed0~0~true=1, ~unnamed0~0~false=0, x=2} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46c40e73=0, \result=0, ~unnamed0~0~true=1, ~unnamed0~0~false=0, x=3} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46c40e73=0, \result=0, ~unnamed0~0~true=1, ~unnamed0~0~false=0, x=4} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 1GEVs Lambdas: [0, 1, 0] Mus: [0, 0] - NonterminatingLassoResult [Line: 16]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L14] int x; [L15] x = __VERIFIER_nondet_int() Loop: [L16] COND TRUE x >= 0 [L17] x = x + 1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-22 04:42:37.989 ----------------------------------------------- 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 04:42:42.992 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check