YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 01:08:25,428 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 01:08:25,431 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 01:08:25,442 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 01:08:25,442 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 01:08:25,443 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 01:08:25,444 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 01:08:25,446 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 01:08:25,447 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 01:08:25,448 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 01:08:25,449 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 01:08:25,449 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 01:08:25,450 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 01:08:25,451 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 01:08:25,452 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 01:08:25,453 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 01:08:25,454 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 01:08:25,455 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 01:08:25,458 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 01:08:25,459 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 01:08:25,460 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 01:08:25,461 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 01:08:25,463 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 01:08:25,464 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 01:08:25,464 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 01:08:25,465 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 01:08:25,465 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 01:08:25,466 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 01:08:25,466 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 01:08:25,467 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 01:08:25,467 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 01:08:25,468 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 01:08:25,469 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 01:08:25,469 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 01:08:25,470 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 01:08:25,470 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 01:08:25,470 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 01:08:25,471 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 01:08:25,472 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 01:08:25,472 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 01:08:25,487 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 01:08:25,487 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 01:08:25,488 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 01:08:25,489 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 01:08:25,489 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 01:08:25,489 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 01:08:25,489 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 01:08:25,489 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 01:08:25,490 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 01:08:25,490 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 01:08:25,490 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 01:08:25,490 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 01:08:25,490 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 01:08:25,490 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 01:08:25,490 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:08:25,491 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 01:08:25,491 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 01:08:25,491 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 01:08:25,491 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 01:08:25,491 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 01:08:25,492 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 01:08:25,492 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 01:08:25,492 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 01:08:25,492 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 01:08:25,492 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 01:08:25,492 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 01:08:25,493 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 01:08:25,493 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 01:08:25,493 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 01:08:25,519 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 01:08:25,532 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 01:08:25,535 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 01:08:25,537 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 01:08:25,537 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 01:08:25,538 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 01:08:25,630 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/133b74516508468aa4e21032474b0c2d/FLAGb0ac3ddff [2020-06-22 01:08:25,971 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 01:08:25,972 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 01:08:25,979 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/133b74516508468aa4e21032474b0c2d/FLAGb0ac3ddff [2020-06-22 01:08:26,375 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/133b74516508468aa4e21032474b0c2d [2020-06-22 01:08:26,387 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 01:08:26,388 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 01:08:26,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 01:08:26,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 01:08:26,393 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 01:08:26,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30aa8a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26, skipping insertion in model container [2020-06-22 01:08:26,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 01:08:26,422 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 01:08:26,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 01:08:26,577 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 01:08:26,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 01:08:26,659 INFO L195 MainTranslator]: Completed translation [2020-06-22 01:08:26,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26 WrapperNode [2020-06-22 01:08:26,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 01:08:26,661 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 01:08:26,661 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 01:08:26,661 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 01:08:26,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 01:08:26,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 01:08:26,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 01:08:26,695 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 01:08:26,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 01:08:26,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 01:08:26,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 01:08:26,714 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 01:08:26,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (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 [2020-06-22 01:08:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 01:08:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 01:08:26,900 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 01:08:26,901 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 01:08:26,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:08:26 BoogieIcfgContainer [2020-06-22 01:08:26,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 01:08:26,903 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 01:08:26,903 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 01:08:26,905 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 01:08:26,906 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,919 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-06-22 01:08:26,920 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 01:08:26,921 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 01:08:26,922 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 01:08:26,922 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 01:08:26,924 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 01:08:26,925 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 01:08:26,925 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 01:08:26,939 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 01:08:26,952 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 01:08:26,956 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 01:08:26,957 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 01:08:26,970 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 01:08:26,972 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 01:08:26,973 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 01:08:26,973 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 01:08:26,973 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 01:08:26,974 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 01:08:26,974 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges [2020-06-22 01:08:26,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:08:26 BasicIcfg [2020-06-22 01:08:26,974 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 01:08:26,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 01:08:26,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 01:08:26,978 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 01:08:26,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 01:08:26" (1/4) ... [2020-06-22 01:08:26,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d2546f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:08:26, skipping insertion in model container [2020-06-22 01:08:26,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (2/4) ... [2020-06-22 01:08:26,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d2546f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:08:26, skipping insertion in model container [2020-06-22 01:08:26,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:08:26" (3/4) ... [2020-06-22 01:08:26,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d2546f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:08:26, skipping insertion in model container [2020-06-22 01:08:26,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:08:26" (4/4) ... [2020-06-22 01:08:26,982 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 01:08:26,992 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 01:08:27,000 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 01:08:27,017 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 01:08:27,045 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 01:08:27,046 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 01:08:27,046 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 01:08:27,046 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 01:08:27,046 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 01:08:27,047 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 01:08:27,047 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 01:08:27,047 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 01:08:27,047 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 01:08:27,061 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 01:08:27,066 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 01:08:27,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 01:08:27,117 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 01:08:27,117 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 27) no Hoare annotation was computed. [2020-06-22 01:08:27,117 INFO L451 ceAbstractionStarter]: At program point L23-2(lines 22 28) the Hoare annotation is: true [2020-06-22 01:08:27,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:08:27 BasicIcfg [2020-06-22 01:08:27,125 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 01:08:27,126 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 01:08:27,126 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 01:08:27,129 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 01:08:27,130 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:08:27,130 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 01:08:26" (1/5) ... [2020-06-22 01:08:27,131 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4ea42818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 01:08:27, skipping insertion in model container [2020-06-22 01:08:27,131 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:08:27,131 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (2/5) ... [2020-06-22 01:08:27,132 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4ea42818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 01:08:27, skipping insertion in model container [2020-06-22 01:08:27,132 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:08:27,132 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:08:26" (3/5) ... [2020-06-22 01:08:27,132 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4ea42818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:08:27, skipping insertion in model container [2020-06-22 01:08:27,132 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:08:27,133 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:08:26" (4/5) ... [2020-06-22 01:08:27,133 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4ea42818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:08:27, skipping insertion in model container [2020-06-22 01:08:27,133 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:08:27,133 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:08:27" (5/5) ... [2020-06-22 01:08:27,135 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 01:08:27,160 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 01:08:27,160 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 01:08:27,161 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 01:08:27,161 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 01:08:27,161 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 01:08:27,161 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 01:08:27,161 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 01:08:27,162 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 01:08:27,162 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 01:08:27,165 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 01:08:27,181 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 01:08:27,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:08:27,182 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:08:27,187 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 01:08:27,187 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 01:08:27,187 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 01:08:27,188 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 01:08:27,188 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 01:08:27,188 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:08:27,188 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:08:27,189 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 01:08:27,189 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 01:08:27,194 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [27] ULTIMATE.startENTRY-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3#L23-2true [2020-06-22 01:08:27,194 INFO L796 eck$LassoCheckResult]: Loop: 3#L23-2true [35] L23-2-->L23: Formula: (<= 0 v_ULTIMATE.start_main_~y~0_7) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7} AuxVars[] AssignedVars[] 5#L23true [34] L23-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (- 1))) (> 0 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 3#L23-2true [2020-06-22 01:08:27,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:27,200 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 1 times [2020-06-22 01:08:27,202 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:27,202 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:27,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:27,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:27,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:27,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:27,270 INFO L82 PathProgramCache]: Analyzing trace with hash 2080, now seen corresponding path program 1 times [2020-06-22 01:08:27,270 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:27,270 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:27,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:27,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:27,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:27,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:27,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:27,283 INFO L82 PathProgramCache]: Analyzing trace with hash 56857, now seen corresponding path program 1 times [2020-06-22 01:08:27,283 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:27,284 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:27,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:27,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:27,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:27,334 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:08:27,335 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:08:27,335 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:08:27,335 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:08:27,335 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 01:08:27,336 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:08:27,336 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:08:27,336 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:08:27,336 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 01:08:27,336 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:08:27,337 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:08:27,357 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 01:08:27,367 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 01:08:27,371 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 01:08:27,377 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 01:08:27,462 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:08:27,463 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 [2020-06-22 01:08:27,472 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:27,472 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:27,507 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:27,508 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/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 [2020-06-22 01:08:27,514 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:27,514 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:27,541 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:27,541 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/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 [2020-06-22 01:08:27,546 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:27,546 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:27,573 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:27,573 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=-1} Honda state: {ULTIMATE.start_main_~x~0=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 [2020-06-22 01:08:27,578 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:27,579 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 [2020-06-22 01:08:27,609 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 01:08:27,609 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:27,640 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 01:08:27,643 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:08:27,643 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:08:27,643 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:08:27,643 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:08:27,643 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 01:08:27,643 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 01:08:27,643 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:08:27,643 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:08:27,644 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 01:08:27,644 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:08:27,644 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:08:27,646 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 01:08:27,650 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 01:08:27,654 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 01:08:27,657 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 01:08:27,713 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:08:27,719 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 01:08:27,721 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 01:08:27,722 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:08:27,722 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:08:27,723 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:08:27,723 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:08:27,727 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 01:08:27,727 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 01:08:27,737 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:08:27,737 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 01:08:27,738 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:08:27,738 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:08:27,738 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:08:27,738 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:08:27,741 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 01:08:27,741 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 01:08:27,750 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:08:27,751 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 01:08:27,752 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:08:27,752 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 01:08:27,753 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:08:27,753 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:08:27,753 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:08:27,754 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 01:08:27,754 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 01:08:27,755 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:08:27,756 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 01:08:27,756 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:08:27,756 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 01:08:27,757 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:08:27,757 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:08:27,757 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:08:27,758 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 01:08:27,758 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 01:08:27,763 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 01:08:27,768 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 01:08:27,768 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 01:08:27,770 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 01:08:27,771 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 01:08:27,771 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 01:08:27,771 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2020-06-22 01:08:27,773 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 01:08:27,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:27,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:27,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 01:08:27,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:08:27,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:27,835 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 01:08:27,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:08:27,852 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 01:08:27,881 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 01:08:27,886 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 01:08:27,888 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-06-22 01:08:27,930 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 13 states and 27 transitions. Complement of second has 6 states. [2020-06-22 01:08:27,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-22 01:08:27,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 01:08:27,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-06-22 01:08:27,935 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 01:08:27,936 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:08:27,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 01:08:27,936 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:08:27,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 01:08:27,937 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:08:27,942 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 27 transitions. [2020-06-22 01:08:27,944 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-06-22 01:08:27,949 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 27 transitions. [2020-06-22 01:08:27,950 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 01:08:27,950 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-06-22 01:08:27,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 27 transitions. [2020-06-22 01:08:27,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 01:08:27,951 INFO L706 BuchiCegarLoop]: Abstraction has 13 states and 27 transitions. [2020-06-22 01:08:27,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 27 transitions. [2020-06-22 01:08:27,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2020-06-22 01:08:27,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-06-22 01:08:27,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 24 transitions. [2020-06-22 01:08:27,981 INFO L729 BuchiCegarLoop]: Abstraction has 11 states and 24 transitions. [2020-06-22 01:08:27,981 INFO L609 BuchiCegarLoop]: Abstraction has 11 states and 24 transitions. [2020-06-22 01:08:27,981 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 01:08:27,982 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 24 transitions. [2020-06-22 01:08:27,982 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-06-22 01:08:27,983 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:08:27,983 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:08:27,983 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 01:08:27,983 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 01:08:27,984 INFO L794 eck$LassoCheckResult]: Stem: 57#ULTIMATE.startENTRY [27] ULTIMATE.startENTRY-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 58#L23-2 [35] L23-2-->L23: Formula: (<= 0 v_ULTIMATE.start_main_~y~0_7) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7} AuxVars[] AssignedVars[] 53#L23 [2020-06-22 01:08:27,984 INFO L796 eck$LassoCheckResult]: Loop: 53#L23 [28] L23-->L23-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_9) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1)))) 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_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 52#L23-2 [35] L23-2-->L23: Formula: (<= 0 v_ULTIMATE.start_main_~y~0_7) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7} AuxVars[] AssignedVars[] 53#L23 [2020-06-22 01:08:27,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:27,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1833, now seen corresponding path program 1 times [2020-06-22 01:08:27,984 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:27,984 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:27,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:27,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:27,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:27,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:27,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:27,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1864, now seen corresponding path program 1 times [2020-06-22 01:08:27,992 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:27,992 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:27,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:27,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:27,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:27,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:27,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1762416, now seen corresponding path program 1 times [2020-06-22 01:08:27,998 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:27,998 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:27,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:28,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:28,026 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:08:28,027 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:08:28,027 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:08:28,027 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:08:28,027 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 01:08:28,028 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:08:28,028 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:08:28,028 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:08:28,028 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 01:08:28,028 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:08:28,028 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:08:28,030 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 01:08:28,033 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 01:08:28,037 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 01:08:28,041 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 01:08:28,109 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:08:28,109 INFO L412 LassoAnalysis]: Checking for nontermination... 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 [2020-06-22 01:08:28,119 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:28,119 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:28,147 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:28,148 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/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 [2020-06-22 01:08:28,158 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:28,158 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:28,186 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:28,186 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/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 [2020-06-22 01:08:28,191 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:28,191 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:28,218 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:28,218 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/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 [2020-06-22 01:08:28,225 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:28,225 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 [2020-06-22 01:08:28,262 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 01:08:28,262 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:28,292 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 01:08:28,294 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:08:28,295 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:08:28,295 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:08:28,295 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:08:28,295 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 01:08:28,295 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 01:08:28,295 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:08:28,295 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:08:28,296 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 01:08:28,296 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:08:28,296 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:08:28,297 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 01:08:28,301 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 01:08:28,304 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 01:08:28,307 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 01:08:28,355 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:08:28,355 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 01:08:28,356 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 01:08:28,357 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:08:28,357 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:08:28,357 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:08:28,357 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:08:28,359 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 01:08:28,359 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 01:08:28,364 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:08:28,364 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 01:08:28,365 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:08:28,365 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 01:08:28,365 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:08:28,366 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:08:28,366 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:08:28,366 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 01:08:28,367 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 01:08:28,368 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:08:28,368 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 01:08:28,369 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:08:28,369 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:08:28,369 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:08:28,369 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:08:28,371 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 01:08:28,371 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 01:08:28,377 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:08:28,377 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 01:08:28,378 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:08:28,378 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 01:08:28,378 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:08:28,379 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:08:28,379 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:08:28,380 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 01:08:28,380 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 01:08:28,384 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 01:08:28,387 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 01:08:28,388 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 01:08:28,388 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 01:08:28,388 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 01:08:28,388 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 01:08:28,388 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-06-22 01:08:28,389 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 01:08:28,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:28,416 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 01:08:28,417 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:08:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:28,423 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 01:08:28,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:08:28,469 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 01:08:28,470 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 01:08:28,470 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 01:08:28,471 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 11 states and 24 transitions. cyclomatic complexity: 16 Second operand 3 states. [2020-06-22 01:08:28,497 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 11 states and 24 transitions. cyclomatic complexity: 16. Second operand 3 states. Result 35 states and 68 transitions. Complement of second has 7 states. [2020-06-22 01:08:28,498 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 01:08:28,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 01:08:28,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2020-06-22 01:08:28,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 01:08:28,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:08:28,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 4 letters. Loop has 2 letters. [2020-06-22 01:08:28,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:08:28,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 01:08:28,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:08:28,502 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 68 transitions. [2020-06-22 01:08:28,505 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-06-22 01:08:28,507 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 27 states and 52 transitions. [2020-06-22 01:08:28,507 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-06-22 01:08:28,507 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-06-22 01:08:28,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 52 transitions. [2020-06-22 01:08:28,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 01:08:28,507 INFO L706 BuchiCegarLoop]: Abstraction has 27 states and 52 transitions. [2020-06-22 01:08:28,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 52 transitions. [2020-06-22 01:08:28,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2020-06-22 01:08:28,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-06-22 01:08:28,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 47 transitions. [2020-06-22 01:08:28,511 INFO L729 BuchiCegarLoop]: Abstraction has 23 states and 47 transitions. [2020-06-22 01:08:28,511 INFO L609 BuchiCegarLoop]: Abstraction has 23 states and 47 transitions. [2020-06-22 01:08:28,511 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 01:08:28,511 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 47 transitions. [2020-06-22 01:08:28,512 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-06-22 01:08:28,513 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:08:28,513 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:08:28,513 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 01:08:28,514 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 01:08:28,514 INFO L794 eck$LassoCheckResult]: Stem: 138#ULTIMATE.startENTRY [27] ULTIMATE.startENTRY-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 139#L23-2 [36] L23-2-->L23: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 146#L23 [2020-06-22 01:08:28,514 INFO L796 eck$LassoCheckResult]: Loop: 146#L23 [34] L23-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (- 1))) (> 0 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 147#L23-2 [36] L23-2-->L23: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 146#L23 [2020-06-22 01:08:28,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:28,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1834, now seen corresponding path program 1 times [2020-06-22 01:08:28,515 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:28,515 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:28,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:28,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:28,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:28,521 INFO L82 PathProgramCache]: Analyzing trace with hash 2051, now seen corresponding path program 1 times [2020-06-22 01:08:28,521 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:28,521 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:28,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:28,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:28,551 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 01:08:28,553 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:28,554 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-06-22 01:08:28,556 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 01:08:28,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 01:08:28,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 01:08:28,559 INFO L87 Difference]: Start difference. First operand 23 states and 47 transitions. cyclomatic complexity: 30 Second operand 3 states. [2020-06-22 01:08:28,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:28,584 INFO L93 Difference]: Finished difference Result 17 states and 28 transitions. [2020-06-22 01:08:28,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 01:08:28,586 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 28 transitions. [2020-06-22 01:08:28,587 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 01:08:28,588 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 4 states and 4 transitions. [2020-06-22 01:08:28,588 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 01:08:28,588 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 01:08:28,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 4 transitions. [2020-06-22 01:08:28,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 01:08:28,588 INFO L706 BuchiCegarLoop]: Abstraction has 4 states and 4 transitions. [2020-06-22 01:08:28,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 4 transitions. [2020-06-22 01:08:28,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 3. [2020-06-22 01:08:28,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 01:08:28,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3 transitions. [2020-06-22 01:08:28,589 INFO L729 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2020-06-22 01:08:28,590 INFO L609 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2020-06-22 01:08:28,590 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 01:08:28,590 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states and 3 transitions. [2020-06-22 01:08:28,590 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 01:08:28,590 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:08:28,590 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:08:28,590 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 01:08:28,591 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 01:08:28,591 INFO L794 eck$LassoCheckResult]: Stem: 181#ULTIMATE.startENTRY [27] ULTIMATE.startENTRY-->L23-2: 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] 179#L23-2 [2020-06-22 01:08:28,591 INFO L796 eck$LassoCheckResult]: Loop: 179#L23-2 [36] L23-2-->L23: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 180#L23 [28] L23-->L23-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_9) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1)))) 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_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 179#L23-2 [2020-06-22 01:08:28,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:28,591 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 2 times [2020-06-22 01:08:28,591 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:28,591 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:28,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:28,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:28,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:28,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:28,597 INFO L82 PathProgramCache]: Analyzing trace with hash 2105, now seen corresponding path program 1 times [2020-06-22 01:08:28,597 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:28,597 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:28,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,598 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 01:08:28,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:28,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:28,602 INFO L82 PathProgramCache]: Analyzing trace with hash 56882, now seen corresponding path program 1 times [2020-06-22 01:08:28,602 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:28,603 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:28,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:28,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:28,619 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:08:28,619 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:08:28,619 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:08:28,619 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:08:28,619 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 01:08:28,620 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:08:28,620 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:08:28,620 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:08:28,620 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 01:08:28,620 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:08:28,620 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:08:28,622 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 01:08:28,625 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 01:08:28,632 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 01:08:28,667 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:08:28,667 INFO L412 LassoAnalysis]: Checking for nontermination... 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 [2020-06-22 01:08:28,678 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:28,679 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:28,711 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:28,711 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:08:28,718 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:28,718 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:08:28,749 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 01:08:28,749 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:28,779 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 01:08:28,782 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:08:28,782 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:08:28,782 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:08:28,782 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:08:28,782 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 01:08:28,782 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 01:08:28,782 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:08:28,782 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:08:28,783 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 01:08:28,783 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:08:28,783 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:08:28,784 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 01:08:28,788 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 01:08:28,795 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 01:08:28,849 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:08:28,849 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 01:08:28,850 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 01:08:28,850 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:08:28,851 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:08:28,851 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:08:28,851 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:08:28,852 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 01:08:28,853 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 01:08:28,858 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:08:28,858 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 01:08:28,859 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:08:28,859 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 01:08:28,859 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:08:28,859 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:08:28,859 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:08:28,860 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 01:08:28,860 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 01:08:28,864 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 01:08:28,866 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 01:08:28,866 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 01:08:28,867 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 01:08:28,867 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 01:08:28,867 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 01:08:28,867 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-06-22 01:08:28,868 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 01:08:28,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:28,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 01:08:28,892 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:08:28,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:28,895 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 01:08:28,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:08:28,907 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 01:08:28,921 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 01:08:28,922 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 01:08:28,922 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states and 3 transitions. cyclomatic complexity: 1 Second operand 3 states. [2020-06-22 01:08:28,931 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states and 3 transitions. cyclomatic complexity: 1. Second operand 3 states. Result 5 states and 6 transitions. Complement of second has 4 states. [2020-06-22 01:08:28,931 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 01:08:28,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 01:08:28,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2020-06-22 01:08:28,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 01:08:28,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:08:28,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 01:08:28,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:08:28,933 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 01:08:28,933 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:08:28,934 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 6 transitions. [2020-06-22 01:08:28,934 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 01:08:28,934 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 0 states and 0 transitions. [2020-06-22 01:08:28,934 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 01:08:28,934 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 01:08:28,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 01:08:28,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 01:08:28,935 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 01:08:28,935 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 01:08:28,935 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 01:08:28,935 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 01:08:28,935 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 01:08:28,935 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 01:08:28,935 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 01:08:28,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:08:28 BasicIcfg [2020-06-22 01:08:28,942 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 01:08:28,942 INFO L168 Benchmark]: Toolchain (without parser) took 2555.13 ms. Allocated memory was 649.6 MB in the beginning and 676.9 MB in the end (delta: 27.3 MB). Free memory was 564.1 MB in the beginning and 407.2 MB in the end (delta: 157.0 MB). Peak memory consumption was 184.2 MB. Max. memory is 50.3 GB. [2020-06-22 01:08:28,944 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 591.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 01:08:28,944 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.91 ms. Allocated memory was 649.6 MB in the beginning and 676.9 MB in the end (delta: 27.3 MB). Free memory was 564.1 MB in the beginning and 644.2 MB in the end (delta: -80.1 MB). Peak memory consumption was 30.6 MB. Max. memory is 50.3 GB. [2020-06-22 01:08:28,945 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.76 ms. Allocated memory is still 676.9 MB. Free memory was 644.2 MB in the beginning and 641.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. [2020-06-22 01:08:28,946 INFO L168 Benchmark]: Boogie Preprocessor took 18.47 ms. Allocated memory is still 676.9 MB. Free memory was 641.1 MB in the beginning and 639.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 01:08:28,946 INFO L168 Benchmark]: RCFGBuilder took 188.93 ms. Allocated memory is still 676.9 MB. Free memory was 639.8 MB in the beginning and 626.9 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. [2020-06-22 01:08:28,947 INFO L168 Benchmark]: BlockEncodingV2 took 71.85 ms. Allocated memory is still 676.9 MB. Free memory was 626.9 MB in the beginning and 621.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 01:08:28,947 INFO L168 Benchmark]: TraceAbstraction took 149.93 ms. Allocated memory is still 676.9 MB. Free memory was 621.5 MB in the beginning and 612.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 50.3 GB. [2020-06-22 01:08:28,948 INFO L168 Benchmark]: BuchiAutomizer took 1816.23 ms. Allocated memory is still 676.9 MB. Free memory was 611.0 MB in the beginning and 407.2 MB in the end (delta: 203.8 MB). Peak memory consumption was 203.8 MB. Max. memory is 50.3 GB. [2020-06-22 01:08:28,952 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 3 locations, 5 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 591.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 270.91 ms. Allocated memory was 649.6 MB in the beginning and 676.9 MB in the end (delta: 27.3 MB). Free memory was 564.1 MB in the beginning and 644.2 MB in the end (delta: -80.1 MB). Peak memory consumption was 30.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.76 ms. Allocated memory is still 676.9 MB. Free memory was 644.2 MB in the beginning and 641.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.47 ms. Allocated memory is still 676.9 MB. Free memory was 641.1 MB in the beginning and 639.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 188.93 ms. Allocated memory is still 676.9 MB. Free memory was 639.8 MB in the beginning and 626.9 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 71.85 ms. Allocated memory is still 676.9 MB. Free memory was 626.9 MB in the beginning and 621.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 149.93 ms. Allocated memory is still 676.9 MB. Free memory was 621.5 MB in the beginning and 612.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1816.23 ms. Allocated memory is still 676.9 MB. Free memory was 611.0 MB in the beginning and 407.2 MB in the end (delta: 203.8 MB). Peak memory consumption was 203.8 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: 22]: 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, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function 2 * y + 1 and consists of 4 locations. One nondeterministic module has affine ranking function 2 * x + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * x + 1 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 23 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 24 SDslu, 7 SDs, 0 SdLazy, 41 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax201 hnf100 lsp41 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 01:08:23.112 ----------------------------------------------- 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 2020-06-22 01:08:29.184 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check