YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 05:40:24,389 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 05:40:24,391 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 05:40:24,402 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 05:40:24,402 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 05:40:24,403 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 05:40:24,404 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 05:40:24,406 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 05:40:24,407 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 05:40:24,408 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 05:40:24,409 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 05:40:24,409 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 05:40:24,410 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 05:40:24,411 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 05:40:24,412 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 05:40:24,413 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 05:40:24,413 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 05:40:24,415 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 05:40:24,417 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 05:40:24,418 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 05:40:24,419 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 05:40:24,420 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 05:40:24,422 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 05:40:24,422 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 05:40:24,423 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 05:40:24,423 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 05:40:24,424 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 05:40:24,425 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 05:40:24,425 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 05:40:24,426 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 05:40:24,426 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 05:40:24,427 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 05:40:24,428 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 05:40:24,428 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 05:40:24,429 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 05:40:24,429 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 05:40:24,429 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 05:40:24,430 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 05:40:24,431 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 05:40:24,431 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 05:40:24,446 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 05:40:24,446 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 05:40:24,447 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 05:40:24,447 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 05:40:24,447 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 05:40:24,448 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 05:40:24,448 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 05:40:24,448 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 05:40:24,448 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 05:40:24,448 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 05:40:24,448 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 05:40:24,449 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 05:40:24,449 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 05:40:24,449 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 05:40:24,449 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:24,449 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 05:40:24,449 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 05:40:24,450 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 05:40:24,450 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 05:40:24,450 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 05:40:24,450 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 05:40:24,450 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 05:40:24,450 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 05:40:24,451 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 05:40:24,451 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 05:40:24,451 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 05:40:24,451 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 05:40:24,451 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 05:40:24,451 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 05:40:24,477 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 05:40:24,490 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 05:40:24,494 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 05:40:24,495 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 05:40:24,496 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 05:40:24,496 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 05:40:24,560 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/1f29a6313062401b930d165f51816a94/FLAG69193fca3 [2020-06-22 05:40:24,887 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 05:40:24,888 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 05:40:24,894 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/1f29a6313062401b930d165f51816a94/FLAG69193fca3 [2020-06-22 05:40:25,291 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/1f29a6313062401b930d165f51816a94 [2020-06-22 05:40:25,304 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 05:40:25,305 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 05:40:25,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 05:40:25,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 05:40:25,310 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 05:40:25,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 05:40:25" (1/1) ... [2020-06-22 05:40:25,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30333af2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25, skipping insertion in model container [2020-06-22 05:40:25,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 05:40:25" (1/1) ... [2020-06-22 05:40:25,322 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 05:40:25,338 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 05:40:25,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 05:40:25,494 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 05:40:25,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 05:40:25,577 INFO L195 MainTranslator]: Completed translation [2020-06-22 05:40:25,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25 WrapperNode [2020-06-22 05:40:25,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 05:40:25,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 05:40:25,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 05:40:25,579 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 05:40:25,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (1/1) ... [2020-06-22 05:40:25,594 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (1/1) ... [2020-06-22 05:40:25,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 05:40:25,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 05:40:25,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 05:40:25,614 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 05:40:25,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (1/1) ... [2020-06-22 05:40:25,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (1/1) ... [2020-06-22 05:40:25,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (1/1) ... [2020-06-22 05:40:25,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (1/1) ... [2020-06-22 05:40:25,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (1/1) ... [2020-06-22 05:40:25,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (1/1) ... [2020-06-22 05:40:25,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (1/1) ... [2020-06-22 05:40:25,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 05:40:25,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 05:40:25,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 05:40:25,635 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 05:40:25,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (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 05:40:25,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 05:40:25,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 05:40:25,831 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 05:40:25,831 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2020-06-22 05:40:25,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:40:25 BoogieIcfgContainer [2020-06-22 05:40:25,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 05:40:25,833 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 05:40:25,833 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 05:40:25,835 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 05:40:25,836 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:40:25" (1/1) ... [2020-06-22 05:40:25,851 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-06-22 05:40:25,853 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 05:40:25,854 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 05:40:25,854 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 05:40:25,855 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 05:40:25,856 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 05:40:25,857 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 05:40:25,857 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 05:40:25,872 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 05:40:25,880 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 05:40:25,885 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-06-22 05:40:25,887 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 05:40:25,919 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-06-22 05:40:25,921 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 05:40:25,923 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 05:40:25,923 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 05:40:25,923 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 05:40:25,924 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 05:40:25,924 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-06-22 05:40:25,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:40:25 BasicIcfg [2020-06-22 05:40:25,924 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 05:40:25,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 05:40:25,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 05:40:25,929 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 05:40:25,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 05:40:25" (1/4) ... [2020-06-22 05:40:25,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a126a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:40:25, skipping insertion in model container [2020-06-22 05:40:25,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (2/4) ... [2020-06-22 05:40:25,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a126a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:40:25, skipping insertion in model container [2020-06-22 05:40:25,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:40:25" (3/4) ... [2020-06-22 05:40:25,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a126a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:40:25, skipping insertion in model container [2020-06-22 05:40:25,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:40:25" (4/4) ... [2020-06-22 05:40:25,933 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 05:40:25,943 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 05:40:25,952 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 05:40:25,970 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 05:40:26,002 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 05:40:26,003 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 05:40:26,003 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 05:40:26,003 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 05:40:26,003 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 05:40:26,003 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 05:40:26,003 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 05:40:26,004 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 05:40:26,004 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 05:40:26,019 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 05:40:26,025 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 05:40:26,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 05:40:26,082 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 05:40:26,082 INFO L451 ceAbstractionStarter]: At program point L12-2(lines 12 14) the Hoare annotation is: true [2020-06-22 05:40:26,082 INFO L451 ceAbstractionStarter]: At program point L11-2(lines 11 16) the Hoare annotation is: true [2020-06-22 05:40:26,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:40:26 BasicIcfg [2020-06-22 05:40:26,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 05:40:26,091 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 05:40:26,091 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 05:40:26,095 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 05:40:26,096 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:40:26,096 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 05:40:25" (1/5) ... [2020-06-22 05:40:26,097 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cd38296 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 05:40:26, skipping insertion in model container [2020-06-22 05:40:26,097 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:40:26,097 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (2/5) ... [2020-06-22 05:40:26,097 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cd38296 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 05:40:26, skipping insertion in model container [2020-06-22 05:40:26,097 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:40:26,098 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:40:25" (3/5) ... [2020-06-22 05:40:26,098 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cd38296 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:40:26, skipping insertion in model container [2020-06-22 05:40:26,098 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:40:26,098 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:40:25" (4/5) ... [2020-06-22 05:40:26,099 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cd38296 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:40:26, skipping insertion in model container [2020-06-22 05:40:26,099 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:40:26,099 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:40:26" (5/5) ... [2020-06-22 05:40:26,101 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 05:40:26,127 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 05:40:26,128 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 05:40:26,128 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 05:40:26,128 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 05:40:26,128 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 05:40:26,129 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 05:40:26,129 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 05:40:26,129 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 05:40:26,129 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 05:40:26,132 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 05:40:26,149 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 05:40:26,150 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:40:26,150 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:40:26,155 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 05:40:26,155 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 05:40:26,155 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 05:40:26,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 05:40:26,156 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 05:40:26,156 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:40:26,156 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:40:26,157 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 05:40:26,157 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 05:40:26,162 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [34] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 5#L11-2true [2020-06-22 05:40:26,162 INFO L796 eck$LassoCheckResult]: Loop: 5#L11-2true [40] L11-2-->L12-2: Formula: (< 0 v_ULTIMATE.start_main_~x~0_9) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[] 3#L12-2true [45] L12-2-->L11-2: Formula: (and (<= v_ULTIMATE.start_main_~y~0_9 0) (= (+ v_ULTIMATE.start_main_~x~0_12 (- 1)) v_ULTIMATE.start_main_~x~0_11)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 5#L11-2true [2020-06-22 05:40:26,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:26,169 INFO L82 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2020-06-22 05:40:26,171 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:26,171 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:26,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:26,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:40:26,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:26,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:26,243 INFO L82 PathProgramCache]: Analyzing trace with hash 2246, now seen corresponding path program 1 times [2020-06-22 05:40:26,243 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:26,243 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:26,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:26,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:40:26,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:26,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:26,256 INFO L82 PathProgramCache]: Analyzing trace with hash 63750, now seen corresponding path program 1 times [2020-06-22 05:40:26,256 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:26,256 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:26,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:26,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:40:26,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:26,319 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:40:26,320 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:40:26,321 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:40:26,321 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:40:26,321 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:40:26,321 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:26,321 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:40:26,321 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:40:26,322 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 05:40:26,322 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:40:26,322 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:40:26,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:40:26,351 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 05:40:26,355 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 05:40:26,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:40:26,436 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:40:26,437 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 05:40:26,445 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:26,445 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:26,479 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:40:26,479 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 05:40:26,485 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:26,485 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:26,513 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:40:26,513 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 05:40:26,517 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:26,518 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:26,545 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:40:26,546 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0} Honda state: {ULTIMATE.start_main_~y~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 05:40:26,550 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:26,550 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 05:40:26,581 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:40:26,581 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:26,612 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 05:40:26,614 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:40:26,614 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:40:26,614 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:40:26,614 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:40:26,614 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 05:40:26,614 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 05:40:26,615 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:40:26,615 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:40:26,615 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 05:40:26,615 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:40:26,615 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:40:26,617 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 05:40:26,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:40:26,625 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 05:40:26,629 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 05:40:26,709 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:40:26,715 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 05:40:26,717 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:40:26,719 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:40:26,719 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:40:26,719 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:40:26,719 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:40:26,724 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:40:26,724 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:40:26,733 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:40:26,734 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:40:26,734 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:40:26,735 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:40:26,735 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:40:26,735 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:40:26,738 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:40:26,738 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:40:26,747 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:40:26,748 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:40:26,749 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:40:26,749 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:40:26,750 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:40:26,750 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:40:26,750 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:40:26,750 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:40:26,751 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:40:26,752 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:40:26,752 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:40:26,753 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:40:26,753 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:40:26,753 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:40:26,753 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:40:26,754 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:40:26,754 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:40:26,755 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:40:26,760 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 05:40:26,764 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 05:40:26,764 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 05:40:26,767 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 05:40:26,767 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 05:40:26,767 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 05:40:26,768 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-06-22 05:40:26,769 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 05:40:26,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:40:26,803 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 05:40:26,805 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:40:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:40:26,814 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 05:40:26,815 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:40:26,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 05:40:26,854 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 05:40:26,859 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 05:40:26,861 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-06-22 05:40:26,885 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 6 states and 9 transitions. Complement of second has 4 states. [2020-06-22 05:40:26,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 05:40:26,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 05:40:26,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-06-22 05:40:26,890 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 05:40:26,891 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:40:26,892 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 05:40:26,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:40:26,892 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 05:40:26,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:40:26,898 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 9 transitions. [2020-06-22 05:40:26,898 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 05:40:26,902 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 9 transitions. [2020-06-22 05:40:26,903 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-06-22 05:40:26,903 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 05:40:26,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 9 transitions. [2020-06-22 05:40:26,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 05:40:26,904 INFO L706 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-06-22 05:40:26,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 9 transitions. [2020-06-22 05:40:26,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2020-06-22 05:40:26,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-06-22 05:40:26,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-06-22 05:40:26,932 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-06-22 05:40:26,932 INFO L609 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-06-22 05:40:26,932 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 05:40:26,933 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 8 transitions. [2020-06-22 05:40:26,933 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 05:40:26,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:40:26,933 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:40:26,934 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 05:40:26,934 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 05:40:26,934 INFO L794 eck$LassoCheckResult]: Stem: 45#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 46#L11-2 [40] L11-2-->L12-2: Formula: (< 0 v_ULTIMATE.start_main_~x~0_9) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[] 42#L12-2 [2020-06-22 05:40:26,934 INFO L796 eck$LassoCheckResult]: Loop: 42#L12-2 [33] L12-2-->L12-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 42#L12-2 [2020-06-22 05:40:26,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:26,935 INFO L82 PathProgramCache]: Analyzing trace with hash 2055, now seen corresponding path program 1 times [2020-06-22 05:40:26,935 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:26,935 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:26,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:26,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:40:26,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:26,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:26,943 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2020-06-22 05:40:26,943 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:26,943 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:26,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:26,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:40:26,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:26,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:26,948 INFO L82 PathProgramCache]: Analyzing trace with hash 63738, now seen corresponding path program 1 times [2020-06-22 05:40:26,948 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:26,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:26,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:26,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:40:26,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:26,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:26,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:26,969 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:40:26,970 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:40:26,970 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:40:26,970 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:40:26,970 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:40:26,970 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:26,970 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:40:26,970 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:40:26,971 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 05:40:26,971 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:40:26,971 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:40:26,972 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 05:40:26,975 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 05:40:26,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:40:27,029 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:40:27,030 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:27,033 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:27,033 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:27,060 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:40:27,060 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:27,065 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:27,066 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:27,093 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:40:27,093 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:27,097 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:27,098 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:27,127 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:40:27,127 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:27,157 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 05:40:27,159 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:40:27,159 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:40:27,159 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:40:27,159 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:40:27,159 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 05:40:27,159 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 05:40:27,159 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:40:27,160 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:40:27,160 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 05:40:27,160 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:40:27,160 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:40:27,162 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 05:40:27,168 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 05:40:27,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:40:27,216 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:40:27,217 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 05:40:27,217 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:40:27,218 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:40:27,218 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:40:27,218 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:40:27,218 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:40:27,220 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:40:27,220 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:40:27,225 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:40:27,225 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:40:27,226 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:40:27,226 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:40:27,226 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:40:27,226 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:40:27,229 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:40:27,229 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:40:27,234 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:40:27,235 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:40:27,235 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:40:27,236 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:40:27,236 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:40:27,236 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:40:27,236 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:40:27,237 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:40:27,237 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:40:27,242 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 05:40:27,246 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 05:40:27,246 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 05:40:27,246 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 05:40:27,246 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 05:40:27,247 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 05:40:27,247 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-06-22 05:40:27,248 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 05:40:27,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:40:27,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 05:40:27,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:40:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:40:27,276 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 05:40:27,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:40:27,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 05:40:27,278 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 05:40:27,278 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-06-22 05:40:27,278 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-06-22 05:40:27,287 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 11 states and 16 transitions. Complement of second has 6 states. [2020-06-22 05:40:27,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 05:40:27,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 05:40:27,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2020-06-22 05:40:27,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2020-06-22 05:40:27,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:40:27,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 3 letters. Loop has 1 letters. [2020-06-22 05:40:27,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:40:27,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 05:40:27,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:40:27,291 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2020-06-22 05:40:27,292 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 05:40:27,292 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-06-22 05:40:27,292 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 05:40:27,293 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 05:40:27,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 05:40:27,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 05:40:27,293 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:40:27,293 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:40:27,293 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:40:27,293 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 05:40:27,294 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 05:40:27,294 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 05:40:27,294 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 05:40:27,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:40:27 BasicIcfg [2020-06-22 05:40:27,300 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 05:40:27,301 INFO L168 Benchmark]: Toolchain (without parser) took 1996.57 ms. Allocated memory was 649.6 MB in the beginning and 704.1 MB in the end (delta: 54.5 MB). Free memory was 559.6 MB in the beginning and 509.0 MB in the end (delta: 50.6 MB). Peak memory consumption was 105.1 MB. Max. memory is 50.3 GB. [2020-06-22 05:40:27,303 INFO L168 Benchmark]: CDTParser took 0.17 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 05:40:27,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.33 ms. Allocated memory was 649.6 MB in the beginning and 704.1 MB in the end (delta: 54.5 MB). Free memory was 559.6 MB in the beginning and 671.9 MB in the end (delta: -112.3 MB). Peak memory consumption was 30.6 MB. Max. memory is 50.3 GB. [2020-06-22 05:40:27,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.05 ms. Allocated memory is still 704.1 MB. Free memory was 671.9 MB in the beginning and 670.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 05:40:27,304 INFO L168 Benchmark]: Boogie Preprocessor took 19.94 ms. Allocated memory is still 704.1 MB. Free memory was 670.9 MB in the beginning and 669.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 05:40:27,305 INFO L168 Benchmark]: RCFGBuilder took 198.01 ms. Allocated memory is still 704.1 MB. Free memory was 669.7 MB in the beginning and 654.2 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 50.3 GB. [2020-06-22 05:40:27,306 INFO L168 Benchmark]: BlockEncodingV2 took 91.61 ms. Allocated memory is still 704.1 MB. Free memory was 654.2 MB in the beginning and 648.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 05:40:27,306 INFO L168 Benchmark]: TraceAbstraction took 165.48 ms. Allocated memory is still 704.1 MB. Free memory was 647.7 MB in the beginning and 639.0 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 50.3 GB. [2020-06-22 05:40:27,307 INFO L168 Benchmark]: BuchiAutomizer took 1209.02 ms. Allocated memory is still 704.1 MB. Free memory was 639.0 MB in the beginning and 509.0 MB in the end (delta: 130.0 MB). Peak memory consumption was 130.0 MB. Max. memory is 50.3 GB. [2020-06-22 05:40:27,311 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 272.33 ms. Allocated memory was 649.6 MB in the beginning and 704.1 MB in the end (delta: 54.5 MB). Free memory was 559.6 MB in the beginning and 671.9 MB in the end (delta: -112.3 MB). Peak memory consumption was 30.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.05 ms. Allocated memory is still 704.1 MB. Free memory was 671.9 MB in the beginning and 670.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.94 ms. Allocated memory is still 704.1 MB. Free memory was 670.9 MB in the beginning and 669.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 198.01 ms. Allocated memory is still 704.1 MB. Free memory was 669.7 MB in the beginning and 654.2 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 91.61 ms. Allocated memory is still 704.1 MB. Free memory was 654.2 MB in the beginning and 648.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 165.48 ms. Allocated memory is still 704.1 MB. Free memory was 647.7 MB in the beginning and 639.0 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1209.02 ms. Allocated memory is still 704.1 MB. Free memory was 639.0 MB in the beginning and 509.0 MB in the end (delta: 130.0 MB). Peak memory consumption was 130.0 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: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 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=3occurred 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 13 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax206 hnf100 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 05:40:22.078 ----------------------------------------------- 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 05:40:27.545 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check