NO Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-21 23:11:24,873 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-21 23:11:24,875 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-21 23:11:24,886 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-21 23:11:24,887 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-21 23:11:24,888 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-21 23:11:24,889 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-21 23:11:24,890 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-21 23:11:24,892 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-21 23:11:24,892 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-21 23:11:24,893 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-21 23:11:24,894 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-21 23:11:24,894 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-21 23:11:24,895 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-21 23:11:24,896 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-21 23:11:24,897 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-21 23:11:24,898 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-21 23:11:24,899 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-21 23:11:24,901 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-21 23:11:24,903 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-21 23:11:24,903 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-21 23:11:24,905 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-21 23:11:24,906 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-21 23:11:24,907 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-21 23:11:24,907 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-21 23:11:24,908 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-21 23:11:24,908 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-21 23:11:24,909 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-21 23:11:24,909 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-21 23:11:24,910 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-21 23:11:24,910 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-21 23:11:24,911 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-21 23:11:24,912 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-21 23:11:24,912 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-21 23:11:24,913 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-21 23:11:24,913 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-21 23:11:24,913 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-21 23:11:24,914 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-21 23:11:24,915 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-21 23:11:24,915 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-21 23:11:24,929 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-21 23:11:24,929 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-21 23:11:24,930 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-21 23:11:24,930 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-21 23:11:24,931 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-21 23:11:24,931 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-21 23:11:24,931 INFO L133 SettingsManager]: * Use SBE=true [2020-06-21 23:11:24,931 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-21 23:11:24,931 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-21 23:11:24,931 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-21 23:11:24,932 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-21 23:11:24,932 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-21 23:11:24,932 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-21 23:11:24,932 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-21 23:11:24,932 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:11:24,932 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-21 23:11:24,933 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-21 23:11:24,933 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-21 23:11:24,933 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-21 23:11:24,933 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-21 23:11:24,933 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-21 23:11:24,933 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-21 23:11:24,934 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-21 23:11:24,934 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-21 23:11:24,934 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-21 23:11:24,934 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-21 23:11:24,934 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-21 23:11:24,934 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-21 23:11:24,934 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-21 23:11:24,959 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-21 23:11:24,972 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-21 23:11:24,975 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-21 23:11:24,977 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-21 23:11:24,977 INFO L276 PluginConnector]: CDTParser initialized [2020-06-21 23:11:24,978 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-21 23:11:25,046 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/56b9e7519b4043bd8c369f078a896e96/FLAGc3ea9a950 [2020-06-21 23:11:25,377 INFO L307 CDTParser]: Found 1 translation units. [2020-06-21 23:11:25,377 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-21 23:11:25,384 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/56b9e7519b4043bd8c369f078a896e96/FLAGc3ea9a950 [2020-06-21 23:11:25,781 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/56b9e7519b4043bd8c369f078a896e96 [2020-06-21 23:11:25,792 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-21 23:11:25,793 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-21 23:11:25,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-21 23:11:25,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-21 23:11:25,798 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-21 23:11:25,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 11:11:25" (1/1) ... [2020-06-21 23:11:25,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75474892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:11:25, skipping insertion in model container [2020-06-21 23:11:25,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 11:11:25" (1/1) ... [2020-06-21 23:11:25,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-21 23:11:25,826 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-21 23:11:25,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-21 23:11:25,988 INFO L191 MainTranslator]: Completed pre-run [2020-06-21 23:11:26,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-21 23:11:26,078 INFO L195 MainTranslator]: Completed translation [2020-06-21 23:11:26,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:11:26 WrapperNode [2020-06-21 23:11:26,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-21 23:11:26,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-21 23:11:26,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-21 23:11:26,079 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-21 23:11:26,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:11:26" (1/1) ... [2020-06-21 23:11:26,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:11:26" (1/1) ... [2020-06-21 23:11:26,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-21 23:11:26,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-21 23:11:26,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-21 23:11:26,116 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-21 23:11:26,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:11:26" (1/1) ... [2020-06-21 23:11:26,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:11:26" (1/1) ... [2020-06-21 23:11:26,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:11:26" (1/1) ... [2020-06-21 23:11:26,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:11:26" (1/1) ... [2020-06-21 23:11:26,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:11:26" (1/1) ... [2020-06-21 23:11:26,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:11:26" (1/1) ... [2020-06-21 23:11:26,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:11:26" (1/1) ... [2020-06-21 23:11:26,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-21 23:11:26,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-21 23:11:26,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-21 23:11:26,136 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-21 23:11:26,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:11:26" (1/1) ... No working directory specified, using /export/starexec/sandbox/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 [2020-06-21 23:11:26,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-21 23:11:26,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-21 23:11:26,336 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-21 23:11:26,336 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-21 23:11:26,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 11:11:26 BoogieIcfgContainer [2020-06-21 23:11:26,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-21 23:11:26,338 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-21 23:11:26,339 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-21 23:11:26,340 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-21 23:11:26,341 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 11:11:26" (1/1) ... [2020-06-21 23:11:26,356 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 15 edges [2020-06-21 23:11:26,357 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-21 23:11:26,358 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-21 23:11:26,359 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-21 23:11:26,359 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-21 23:11:26,361 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-21 23:11:26,362 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-21 23:11:26,362 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-21 23:11:26,378 INFO L185 BlockEncoder]: Using Use SBE [2020-06-21 23:11:26,395 INFO L200 BlockEncoder]: SBE split 4 edges [2020-06-21 23:11:26,399 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-21 23:11:26,401 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 23:11:26,416 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-21 23:11:26,418 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-06-21 23:11:26,419 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-21 23:11:26,419 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 23:11:26,420 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-21 23:11:26,420 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-21 23:11:26,420 INFO L313 BlockEncoder]: Encoded RCFG 6 locations, 13 edges [2020-06-21 23:11:26,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 11:11:26 BasicIcfg [2020-06-21 23:11:26,421 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-21 23:11:26,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-21 23:11:26,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-21 23:11:26,425 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-21 23:11:26,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.06 11:11:25" (1/4) ... [2020-06-21 23:11:26,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d3cec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 11:11:26, skipping insertion in model container [2020-06-21 23:11:26,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:11:26" (2/4) ... [2020-06-21 23:11:26,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d3cec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 11:11:26, skipping insertion in model container [2020-06-21 23:11:26,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 11:11:26" (3/4) ... [2020-06-21 23:11:26,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d3cec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 11:11:26, skipping insertion in model container [2020-06-21 23:11:26,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 11:11:26" (4/4) ... [2020-06-21 23:11:26,429 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-21 23:11:26,439 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-21 23:11:26,446 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-21 23:11:26,463 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-21 23:11:26,492 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-21 23:11:26,492 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-21 23:11:26,493 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-21 23:11:26,493 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-21 23:11:26,493 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-21 23:11:26,493 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-21 23:11:26,493 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-21 23:11:26,493 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-21 23:11:26,494 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-21 23:11:26,507 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-06-21 23:11:26,513 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-21 23:11:26,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-06-21 23:11:26,564 INFO L451 ceAbstractionStarter]: At program point L18-1(lines 11 23) the Hoare annotation is: true [2020-06-21 23:11:26,565 INFO L448 ceAbstractionStarter]: For program point L16(lines 16 22) no Hoare annotation was computed. [2020-06-21 23:11:26,565 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 22) no Hoare annotation was computed. [2020-06-21 23:11:26,565 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-21 23:11:26,565 INFO L448 ceAbstractionStarter]: For program point L12(lines 12 22) no Hoare annotation was computed. [2020-06-21 23:11:26,565 INFO L448 ceAbstractionStarter]: For program point L18(lines 18 22) no Hoare annotation was computed. [2020-06-21 23:11:26,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 11:11:26 BasicIcfg [2020-06-21 23:11:26,573 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-21 23:11:26,574 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-21 23:11:26,574 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-21 23:11:26,577 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-21 23:11:26,578 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:11:26,578 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.06 11:11:25" (1/5) ... [2020-06-21 23:11:26,579 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4340090f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.06 11:11:26, skipping insertion in model container [2020-06-21 23:11:26,579 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:11:26,579 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:11:26" (2/5) ... [2020-06-21 23:11:26,580 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4340090f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.06 11:11:26, skipping insertion in model container [2020-06-21 23:11:26,580 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:11:26,580 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 11:11:26" (3/5) ... [2020-06-21 23:11:26,580 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4340090f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 11:11:26, skipping insertion in model container [2020-06-21 23:11:26,581 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:11:26,581 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 11:11:26" (4/5) ... [2020-06-21 23:11:26,581 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4340090f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 11:11:26, skipping insertion in model container [2020-06-21 23:11:26,581 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:11:26,581 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 11:11:26" (5/5) ... [2020-06-21 23:11:26,583 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-21 23:11:26,611 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-21 23:11:26,612 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-21 23:11:26,612 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-21 23:11:26,612 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-21 23:11:26,612 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-21 23:11:26,612 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-21 23:11:26,612 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-21 23:11:26,613 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-21 23:11:26,613 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-21 23:11:26,616 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-06-21 23:11:26,633 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-21 23:11:26,634 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 23:11:26,634 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 23:11:26,640 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-21 23:11:26,641 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-21 23:11:26,641 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-21 23:11:26,641 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-06-21 23:11:26,642 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-21 23:11:26,642 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 23:11:26,642 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 23:11:26,642 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-21 23:11:26,643 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-21 23:11:26,648 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [39] ULTIMATE.startENTRY-->L18-1: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 5#L18-1true [2020-06-21 23:11:26,648 INFO L796 eck$LassoCheckResult]: Loop: 5#L18-1true [44] L18-1-->L12: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 6#L12true [59] L12-->L18-1: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet1_3|)) InVars {ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~x~0] 5#L18-1true [2020-06-21 23:11:26,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:11:26,654 INFO L82 PathProgramCache]: Analyzing trace with hash 70, now seen corresponding path program 1 times [2020-06-21 23:11:26,656 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:11:26,656 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:11:26,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:11:26,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:11:26,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:11:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:11:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:11:26,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:11:26,715 INFO L82 PathProgramCache]: Analyzing trace with hash 2384, now seen corresponding path program 1 times [2020-06-21 23:11:26,715 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:11:26,715 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:11:26,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:11:26,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:11:26,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:11:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:11:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:11:26,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:11:26,734 INFO L82 PathProgramCache]: Analyzing trace with hash 68693, now seen corresponding path program 1 times [2020-06-21 23:11:26,734 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:11:26,734 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:11:26,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:11:26,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:11:26,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:11:26,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:11:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:11:26,795 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 23:11:26,796 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 23:11:26,797 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 23:11:26,797 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 23:11:26,797 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-21 23:11:26,797 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:11:26,797 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 23:11:26,797 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 23:11:26,798 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-21 23:11:26,798 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 23:11:26,798 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 23:11:26,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:11:26,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:11:26,875 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 23:11:26,876 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/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 [2020-06-21 23:11:26,883 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:11:26,883 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/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 [2020-06-21 23:11:26,916 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-21 23:11:26,916 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:11:26,934 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:11:26,934 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] No working directory specified, using /export/starexec/sandbox/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 [2020-06-21 23:11:26,961 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:11:26,961 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:11:26,989 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:11:26,989 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=-1} Honda state: {ULTIMATE.start_main_#t~nondet1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-21 23:11:26,998 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 23:11:26,998 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 23:11:26,998 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 23:11:26,998 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 23:11:26,999 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-21 23:11:26,999 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:11:26,999 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 23:11:26,999 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 23:11:26,999 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-06-21 23:11:26,999 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 23:11:26,999 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 23:11:27,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:11:27,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:11:27,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:11:27,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:11:27,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:11:27,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:11:27,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:11:27,074 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 23:11:27,074 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/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 [2020-06-21 23:11:27,082 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:11:27,082 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:11:27,093 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:11:27,093 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/sandbox/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 [2020-06-21 23:11:27,122 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:11:27,122 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:11:27,127 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:11:27,127 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 [2020-06-21 23:11:27,154 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:11:27,155 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:11:27,159 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:11:27,159 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 [2020-06-21 23:11:27,186 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:11:27,186 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:11:27,190 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:11:27,190 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/sandbox/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 [2020-06-21 23:11:27,217 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:11:27,217 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:11:27,221 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:11:27,221 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 [2020-06-21 23:11:27,250 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:11:27,250 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:11:27,277 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:11:27,278 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=-1} Honda state: {ULTIMATE.start_main_#t~nondet1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 [2020-06-21 23:11:27,283 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:11:27,283 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:11:27,320 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-21 23:11:27,320 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:11:27,332 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:11:27,332 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] [2020-06-21 23:11:27,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 11:11:27 BasicIcfg [2020-06-21 23:11:27,378 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-21 23:11:27,378 INFO L168 Benchmark]: Toolchain (without parser) took 1585.77 ms. Allocated memory is still 649.6 MB. Free memory was 564.2 MB in the beginning and 507.5 MB in the end (delta: 56.7 MB). Peak memory consumption was 56.7 MB. Max. memory is 50.3 GB. [2020-06-21 23:11:27,380 INFO L168 Benchmark]: CDTParser took 0.15 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. [2020-06-21 23:11:27,380 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.20 ms. Allocated memory is still 649.6 MB. Free memory was 564.2 MB in the beginning and 616.3 MB in the end (delta: -52.0 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. [2020-06-21 23:11:27,381 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.50 ms. Allocated memory is still 649.6 MB. Free memory was 616.3 MB in the beginning and 613.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. [2020-06-21 23:11:27,382 INFO L168 Benchmark]: Boogie Preprocessor took 19.57 ms. Allocated memory is still 649.6 MB. Free memory was 613.6 MB in the beginning and 611.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 50.3 GB. [2020-06-21 23:11:27,382 INFO L168 Benchmark]: RCFGBuilder took 202.29 ms. Allocated memory is still 649.6 MB. Free memory was 611.8 MB in the beginning and 597.5 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. [2020-06-21 23:11:27,383 INFO L168 Benchmark]: BlockEncodingV2 took 82.66 ms. Allocated memory is still 649.6 MB. Free memory was 597.5 MB in the beginning and 592.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-21 23:11:27,384 INFO L168 Benchmark]: TraceAbstraction took 151.38 ms. Allocated memory is still 649.6 MB. Free memory was 592.2 MB in the beginning and 582.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. [2020-06-21 23:11:27,384 INFO L168 Benchmark]: BuchiAutomizer took 804.12 ms. Allocated memory is still 649.6 MB. Free memory was 582.7 MB in the beginning and 507.5 MB in the end (delta: 75.2 MB). Peak memory consumption was 75.2 MB. Max. memory is 50.3 GB. [2020-06-21 23:11:27,388 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 15 edges - StatisticsResult: Encoded RCFG 6 locations, 13 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 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 284.20 ms. Allocated memory is still 649.6 MB. Free memory was 564.2 MB in the beginning and 616.3 MB in the end (delta: -52.0 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 36.50 ms. Allocated memory is still 649.6 MB. Free memory was 616.3 MB in the beginning and 613.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.57 ms. Allocated memory is still 649.6 MB. Free memory was 613.6 MB in the beginning and 611.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 50.3 GB. * RCFGBuilder took 202.29 ms. Allocated memory is still 649.6 MB. Free memory was 611.8 MB in the beginning and 597.5 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 82.66 ms. Allocated memory is still 649.6 MB. Free memory was 597.5 MB in the beginning and 592.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 151.38 ms. Allocated memory is still 649.6 MB. Free memory was 592.2 MB in the beginning and 582.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 804.12 ms. Allocated memory is still 649.6 MB. Free memory was 582.7 MB in the beginning and 507.5 MB in the end (delta: 75.2 MB). Peak memory consumption was 75.2 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: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 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=6occurred 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: inital13 mio100 ax100 hnf100 lsp76 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 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: 11]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution {|ULTIMATE.start_main_#t~nondet0|=0, |ULTIMATE.start_main_#t~nondet1|=-1, |ULTIMATE.start_main_#t~nondet4|=0, |ULTIMATE.start_main_#t~nondet2|=0, |ULTIMATE.start_main_#res|=0, |ULTIMATE.start_main_#t~nondet3|=0, ULTIMATE.start_main_~x~0=0} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@266b461f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f10eb38=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43fb5331=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34b1a583=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a50fafc=0, x=0} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@266b461f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f10eb38=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43fb5331=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34b1a583=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a50fafc=0, x=1} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@266b461f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f10eb38=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43fb5331=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34b1a583=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a50fafc=0, x=2} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@266b461f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f10eb38=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43fb5331=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34b1a583=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a50fafc=0, x=3} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@266b461f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f10eb38=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43fb5331=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34b1a583=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a50fafc=0, x=4} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 1GEVs Lambdas: [0, 1, 0] Mus: [0, 0] - NonterminatingLassoResult [Line: 11]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L10] int x = __VERIFIER_nondet_int(); Loop: [L11] COND TRUE x >= 0 [L12] COND TRUE __VERIFIER_nondet_int() [L13] x += 1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-21 23:11:22.582 ----------------------------------------------- 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/sandbox/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/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-21 23:11:27.624 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check