YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 11:06:39,034 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 11:06:39,037 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 11:06:39,048 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 11:06:39,048 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 11:06:39,049 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 11:06:39,050 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 11:06:39,052 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 11:06:39,053 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 11:06:39,054 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 11:06:39,055 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 11:06:39,055 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 11:06:39,056 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 11:06:39,057 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 11:06:39,058 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 11:06:39,058 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 11:06:39,059 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 11:06:39,061 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 11:06:39,063 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 11:06:39,064 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 11:06:39,065 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 11:06:39,066 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 11:06:39,068 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 11:06:39,068 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 11:06:39,069 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 11:06:39,069 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 11:06:39,070 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 11:06:39,070 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 11:06:39,071 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 11:06:39,071 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 11:06:39,072 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 11:06:39,073 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 11:06:39,074 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 11:06:39,074 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 11:06:39,074 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 11:06:39,074 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 11:06:39,075 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 11:06:39,076 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 11:06:39,076 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 11:06:39,076 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 11:06:39,091 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 11:06:39,091 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 11:06:39,092 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 11:06:39,092 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 11:06:39,092 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 11:06:39,093 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 11:06:39,093 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 11:06:39,093 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 11:06:39,093 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 11:06:39,093 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 11:06:39,094 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 11:06:39,094 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 11:06:39,094 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 11:06:39,094 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 11:06:39,094 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:06:39,094 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 11:06:39,095 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 11:06:39,095 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 11:06:39,095 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 11:06:39,095 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 11:06:39,096 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 11:06:39,096 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 11:06:39,096 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 11:06:39,096 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 11:06:39,096 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 11:06:39,096 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 11:06:39,097 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 11:06:39,097 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 11:06:39,097 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 11:06:39,122 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 11:06:39,135 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 11:06:39,138 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 11:06:39,140 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 11:06:39,140 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 11:06:39,141 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 11:06:39,206 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/f49258cfc78b46c889484ede4149f289/FLAGa7ccfcddb [2020-06-22 11:06:39,537 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 11:06:39,538 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 11:06:39,544 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/f49258cfc78b46c889484ede4149f289/FLAGa7ccfcddb [2020-06-22 11:06:39,950 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/f49258cfc78b46c889484ede4149f289 [2020-06-22 11:06:39,961 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 11:06:39,963 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 11:06:39,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 11:06:39,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 11:06:39,968 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 11:06:39,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 11:06:39" (1/1) ... [2020-06-22 11:06:39,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36d3df54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:39, skipping insertion in model container [2020-06-22 11:06:39,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 11:06:39" (1/1) ... [2020-06-22 11:06:39,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 11:06:39,997 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 11:06:40,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 11:06:40,162 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 11:06:40,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 11:06:40,253 INFO L195 MainTranslator]: Completed translation [2020-06-22 11:06:40,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:40 WrapperNode [2020-06-22 11:06:40,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 11:06:40,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 11:06:40,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 11:06:40,255 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 11:06:40,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:40" (1/1) ... [2020-06-22 11:06:40,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:40" (1/1) ... [2020-06-22 11:06:40,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 11:06:40,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 11:06:40,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 11:06:40,290 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 11:06:40,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:40" (1/1) ... [2020-06-22 11:06:40,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:40" (1/1) ... [2020-06-22 11:06:40,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:40" (1/1) ... [2020-06-22 11:06:40,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:40" (1/1) ... [2020-06-22 11:06:40,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:40" (1/1) ... [2020-06-22 11:06:40,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:40" (1/1) ... [2020-06-22 11:06:40,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:40" (1/1) ... [2020-06-22 11:06:40,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 11:06:40,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 11:06:40,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 11:06:40,310 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 11:06:40,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:40" (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 11:06:40,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 11:06:40,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 11:06:40,504 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 11:06:40,504 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2020-06-22 11:06:40,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:06:40 BoogieIcfgContainer [2020-06-22 11:06:40,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 11:06:40,506 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 11:06:40,506 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 11:06:40,508 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 11:06:40,509 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:06:40" (1/1) ... [2020-06-22 11:06:40,523 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-06-22 11:06:40,525 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 11:06:40,526 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 11:06:40,526 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 11:06:40,526 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 11:06:40,528 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 11:06:40,529 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 11:06:40,529 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 11:06:40,544 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 11:06:40,557 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 11:06:40,562 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-06-22 11:06:40,563 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 11:06:40,576 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 11:06:40,578 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 11:06:40,579 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 11:06:40,579 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 11:06:40,579 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 11:06:40,580 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 11:06:40,580 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 6 edges [2020-06-22 11:06:40,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:06:40 BasicIcfg [2020-06-22 11:06:40,581 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 11:06:40,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 11:06:40,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 11:06:40,585 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 11:06:40,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 11:06:39" (1/4) ... [2020-06-22 11:06:40,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108163a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:06:40, skipping insertion in model container [2020-06-22 11:06:40,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:40" (2/4) ... [2020-06-22 11:06:40,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108163a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:06:40, skipping insertion in model container [2020-06-22 11:06:40,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:06:40" (3/4) ... [2020-06-22 11:06:40,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108163a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:06:40, skipping insertion in model container [2020-06-22 11:06:40,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:06:40" (4/4) ... [2020-06-22 11:06:40,589 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 11:06:40,598 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 11:06:40,606 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 11:06:40,624 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 11:06:40,653 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 11:06:40,653 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 11:06:40,654 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 11:06:40,654 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 11:06:40,654 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 11:06:40,654 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 11:06:40,654 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 11:06:40,654 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 11:06:40,655 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 11:06:40,668 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-06-22 11:06:40,674 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 11:06:40,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-06-22 11:06:40,730 INFO L451 ceAbstractionStarter]: At program point L19-2(lines 19 21) the Hoare annotation is: true [2020-06-22 11:06:40,730 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 19 21) no Hoare annotation was computed. [2020-06-22 11:06:40,731 INFO L451 ceAbstractionStarter]: At program point L17-2(lines 17 23) the Hoare annotation is: true [2020-06-22 11:06:40,731 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 11:06:40,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:06:40 BasicIcfg [2020-06-22 11:06:40,739 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 11:06:40,740 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 11:06:40,740 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 11:06:40,743 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 11:06:40,744 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:06:40,744 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 11:06:39" (1/5) ... [2020-06-22 11:06:40,745 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@579bc32f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 11:06:40, skipping insertion in model container [2020-06-22 11:06:40,745 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:06:40,745 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:06:40" (2/5) ... [2020-06-22 11:06:40,746 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@579bc32f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 11:06:40, skipping insertion in model container [2020-06-22 11:06:40,746 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:06:40,746 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:06:40" (3/5) ... [2020-06-22 11:06:40,747 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@579bc32f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:06:40, skipping insertion in model container [2020-06-22 11:06:40,747 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:06:40,747 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:06:40" (4/5) ... [2020-06-22 11:06:40,747 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@579bc32f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:06:40, skipping insertion in model container [2020-06-22 11:06:40,747 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:06:40,747 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:06:40" (5/5) ... [2020-06-22 11:06:40,749 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 11:06:40,776 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 11:06:40,777 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 11:06:40,777 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 11:06:40,778 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 11:06:40,778 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 11:06:40,779 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 11:06:40,779 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 11:06:40,779 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 11:06:40,779 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 11:06:40,782 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 11:06:40,800 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 11:06:40,800 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:06:40,800 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:06:40,806 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 11:06:40,806 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 11:06:40,806 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 11:06:40,806 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 11:06:40,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 11:06:40,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:06:40,807 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:06:40,807 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 11:06:40,808 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 11:06:40,813 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [34] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 3#L17-2true [2020-06-22 11:06:40,813 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true [33] L17-2-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_9 0) (< v_ULTIMATE.start_main_~i~0_11 5)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 6#L19-2true [44] L19-2-->L19-3: Formula: (>= 2 v_ULTIMATE.start_main_~i~0_6) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} AuxVars[] AssignedVars[] 5#L19-3true [35] L19-3-->L17-2: Formula: (= v_ULTIMATE.start_main_~i~0_8 (+ v_ULTIMATE.start_main_~i~0_9 1)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 3#L17-2true [2020-06-22 11:06:40,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:06:40,819 INFO L82 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2020-06-22 11:06:40,821 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:06:40,822 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:06:40,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:40,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:06:40,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:40,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:40,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:06:40,893 INFO L82 PathProgramCache]: Analyzing trace with hash 62903, now seen corresponding path program 1 times [2020-06-22 11:06:40,893 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:06:40,893 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:06:40,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:40,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:06:40,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:40,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:40,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:06:40,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1969527, now seen corresponding path program 1 times [2020-06-22 11:06:40,908 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:06:40,908 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:06:40,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:40,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:06:40,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:40,978 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:06:40,980 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:06:40,980 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:06:40,980 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:06:40,980 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 11:06:40,980 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:06:40,980 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:06:40,981 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:06:40,981 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 11:06:40,981 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:06:40,981 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:06:41,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:06:41,024 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 11:06:41,037 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 11:06:41,058 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 11:06:41,145 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:06:41,146 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 11:06:41,154 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:06:41,154 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:06:41,188 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:06:41,188 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 11:06:41,195 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:06:41,196 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:06:41,224 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:06:41,224 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 11:06:41,231 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:06:41,231 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 11:06:41,264 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 11:06:41,264 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:06:41,299 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 11:06:41,302 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:06:41,302 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:06:41,302 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:06:41,302 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:06:41,302 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 11:06:41,302 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 11:06:41,303 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:06:41,303 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:06:41,303 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 11:06:41,303 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:06:41,303 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:06:41,305 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 11:06:41,318 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 11:06:41,322 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 11:06:41,326 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 11:06:41,392 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:06:41,398 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 11:06:41,400 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 11:06:41,401 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:06:41,401 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 11:06:41,402 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:06:41,402 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:06:41,402 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:06:41,405 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 11:06:41,405 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 11:06:41,413 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 11:06:41,419 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 11:06:41,419 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 11:06:41,421 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 11:06:41,421 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 11:06:41,422 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 11:06:41,423 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 5 Supporting invariants [] [2020-06-22 11:06:41,424 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 11:06:41,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:06:41,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:06:41,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 11:06:41,472 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:06:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:06:41,483 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 11:06:41,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:06:41,513 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 11:06:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:06:41,547 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 11:06:41,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:06:41,584 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 11:06:41,590 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 3 loop predicates [2020-06-22 11:06:41,592 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 4 states. [2020-06-22 11:06:41,700 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 4 states. Result 17 states and 27 transitions. Complement of second has 9 states. [2020-06-22 11:06:41,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2020-06-22 11:06:41,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 11:06:41,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2020-06-22 11:06:41,705 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 11:06:41,707 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:06:41,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 11:06:41,707 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:06:41,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 11:06:41,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:06:41,714 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 27 transitions. [2020-06-22 11:06:41,715 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-06-22 11:06:41,720 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 16 states and 25 transitions. [2020-06-22 11:06:41,721 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-06-22 11:06:41,721 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-06-22 11:06:41,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 25 transitions. [2020-06-22 11:06:41,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 11:06:41,722 INFO L706 BuchiCegarLoop]: Abstraction has 16 states and 25 transitions. [2020-06-22 11:06:41,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 25 transitions. [2020-06-22 11:06:41,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 10. [2020-06-22 11:06:41,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-06-22 11:06:41,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 15 transitions. [2020-06-22 11:06:41,752 INFO L729 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2020-06-22 11:06:41,752 INFO L609 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2020-06-22 11:06:41,752 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 11:06:41,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 15 transitions. [2020-06-22 11:06:41,753 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 11:06:41,753 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:06:41,753 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:06:41,755 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 11:06:41,755 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 11:06:41,756 INFO L794 eck$LassoCheckResult]: Stem: 82#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 83#L17-2 [33] L17-2-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_9 0) (< v_ULTIMATE.start_main_~i~0_11 5)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 76#L19-2 [2020-06-22 11:06:41,756 INFO L796 eck$LassoCheckResult]: Loop: 76#L19-2 [38] L19-2-->L19-2: Formula: (and (< 2 v_ULTIMATE.start_main_~i~0_7) (= v_ULTIMATE.start_main_~j~0_7 (+ v_ULTIMATE.start_main_~j~0_8 1)) (<= v_ULTIMATE.start_main_~j~0_8 9)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 76#L19-2 [2020-06-22 11:06:41,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:06:41,756 INFO L82 PathProgramCache]: Analyzing trace with hash 2048, now seen corresponding path program 1 times [2020-06-22 11:06:41,756 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:06:41,757 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:06:41,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:41,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:06:41,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:41,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:06:41,764 INFO L82 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 1 times [2020-06-22 11:06:41,764 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:06:41,764 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:06:41,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:41,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:06:41,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:41,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:41,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:06:41,770 INFO L82 PathProgramCache]: Analyzing trace with hash 63526, now seen corresponding path program 1 times [2020-06-22 11:06:41,770 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:06:41,771 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:06:41,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:41,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:06:41,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:41,800 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:06:41,800 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:06:41,800 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:06:41,800 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:06:41,801 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 11:06:41,801 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:06:41,801 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:06:41,801 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:06:41,801 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 11:06:41,801 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:06:41,801 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:06:41,803 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 11:06:41,806 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 11:06:41,808 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 11:06:41,811 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 11:06:41,861 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:06:41,861 INFO L412 LassoAnalysis]: Checking for nontermination... 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 11:06:41,871 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:06:41,871 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:06:41,900 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:06:41,900 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 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 11:06:41,911 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:06:41,911 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:06:41,946 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:06:41,946 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 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 11:06:41,953 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:06:41,953 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:06:41,981 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:06:41,981 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=3} Honda state: {ULTIMATE.start_main_~i~0=3} 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) [2020-06-22 11:06:41,989 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:06:41,989 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 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 11:06:42,028 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 11:06:42,029 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:06:42,060 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 11:06:42,062 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:06:42,062 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:06:42,063 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:06:42,063 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:06:42,063 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 11:06:42,063 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 11:06:42,063 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:06:42,063 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:06:42,063 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 11:06:42,063 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:06:42,064 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:06:42,065 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 11:06:42,069 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 11:06:42,075 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 11:06:42,079 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 11:06:42,126 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:06:42,126 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 11:06:42,126 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 11:06:42,127 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:06:42,128 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:06:42,128 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:06:42,128 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:06:42,131 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 11:06:42,131 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 11:06:42,137 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:06:42,137 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 11:06:42,138 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:06:42,138 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:06:42,138 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:06:42,138 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:06:42,141 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 11:06:42,141 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 11:06:42,148 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:06:42,148 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 11:06:42,149 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:06:42,149 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 11:06:42,149 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:06:42,150 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:06:42,150 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:06:42,150 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 11:06:42,151 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 11:06:42,152 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:06:42,152 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 11:06:42,153 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:06:42,153 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 11:06:42,153 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:06:42,153 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:06:42,154 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:06:42,155 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 11:06:42,155 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 11:06:42,159 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 11:06:42,163 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 11:06:42,163 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 11:06:42,164 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 11:06:42,164 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 11:06:42,164 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 11:06:42,164 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 19 Supporting invariants [] [2020-06-22 11:06:42,165 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 11:06:42,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:06:42,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:06:42,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 11:06:42,192 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:06:42,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:06:42,200 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 11:06:42,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:06:42,200 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 11:06:42,201 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 11:06:42,201 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-06-22 11:06:42,201 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 10 states and 15 transitions. cyclomatic complexity: 7 Second operand 2 states. [2020-06-22 11:06:42,218 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 10 states and 15 transitions. cyclomatic complexity: 7. Second operand 2 states. Result 17 states and 24 transitions. Complement of second has 4 states. [2020-06-22 11:06:42,219 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 11:06:42,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 11:06:42,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-06-22 11:06:42,220 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 1 letters. [2020-06-22 11:06:42,221 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:06:42,221 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2020-06-22 11:06:42,221 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:06:42,221 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 11:06:42,221 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:06:42,223 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 24 transitions. [2020-06-22 11:06:42,224 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 11:06:42,225 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 11 states and 17 transitions. [2020-06-22 11:06:42,225 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 11:06:42,225 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-06-22 11:06:42,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 17 transitions. [2020-06-22 11:06:42,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 11:06:42,226 INFO L706 BuchiCegarLoop]: Abstraction has 11 states and 17 transitions. [2020-06-22 11:06:42,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 17 transitions. [2020-06-22 11:06:42,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-06-22 11:06:42,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-06-22 11:06:42,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 17 transitions. [2020-06-22 11:06:42,229 INFO L729 BuchiCegarLoop]: Abstraction has 11 states and 17 transitions. [2020-06-22 11:06:42,229 INFO L609 BuchiCegarLoop]: Abstraction has 11 states and 17 transitions. [2020-06-22 11:06:42,229 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 11:06:42,229 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 17 transitions. [2020-06-22 11:06:42,230 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 11:06:42,230 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:06:42,230 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:06:42,230 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 11:06:42,230 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 11:06:42,231 INFO L794 eck$LassoCheckResult]: Stem: 136#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 137#L17-2 [33] L17-2-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_9 0) (< v_ULTIMATE.start_main_~i~0_11 5)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 131#L19-2 [2020-06-22 11:06:42,231 INFO L796 eck$LassoCheckResult]: Loop: 131#L19-2 [45] L19-2-->L19-3: Formula: (> v_ULTIMATE.start_main_~j~0_6 9) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6} AuxVars[] AssignedVars[] 134#L19-3 [35] L19-3-->L17-2: Formula: (= v_ULTIMATE.start_main_~i~0_8 (+ v_ULTIMATE.start_main_~i~0_9 1)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 130#L17-2 [33] L17-2-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_9 0) (< v_ULTIMATE.start_main_~i~0_11 5)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 131#L19-2 [2020-06-22 11:06:42,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:06:42,231 INFO L82 PathProgramCache]: Analyzing trace with hash 2048, now seen corresponding path program 2 times [2020-06-22 11:06:42,231 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:06:42,232 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:06:42,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:42,233 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:06:42,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:42,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:06:42,239 INFO L82 PathProgramCache]: Analyzing trace with hash 74154, now seen corresponding path program 1 times [2020-06-22 11:06:42,239 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:06:42,240 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:06:42,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:42,241 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 11:06:42,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:42,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:42,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:06:42,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:06:42,247 INFO L82 PathProgramCache]: Analyzing trace with hash 61056331, now seen corresponding path program 1 times [2020-06-22 11:06:42,247 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:06:42,247 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:06:42,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:42,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:06:42,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:06:42,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:06:42,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 11:06:42,286 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 11:06:42,286 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 11:06:42,306 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:06:42,306 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:06:42,306 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:06:42,307 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:06:42,307 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 11:06:42,307 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:06:42,307 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:06:42,307 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:06:42,307 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 11:06:42,307 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:06:42,307 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:06:42,309 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 11:06:42,319 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 11:06:42,326 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 11:06:42,337 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 11:06:42,399 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:06:42,400 INFO L412 LassoAnalysis]: Checking for nontermination... 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 11:06:42,408 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:06:42,408 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:06:42,436 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:06:42,436 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 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 11:06:42,447 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:06:42,448 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 11:06:42,482 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 11:06:42,483 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:06:42,588 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 11:06:42,590 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:06:42,590 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:06:42,591 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:06:42,591 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:06:42,591 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 11:06:42,591 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 11:06:42,591 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:06:42,591 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:06:42,591 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 11:06:42,591 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:06:42,592 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:06:42,593 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 11:06:42,600 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 11:06:42,603 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 11:06:42,611 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 11:06:42,667 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:06:42,668 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 11:06:42,668 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 11:06:42,669 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:06:42,669 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 11:06:42,669 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:06:42,669 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:06:42,669 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:06:42,670 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 11:06:42,670 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 11:06:42,675 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 11:06:42,677 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 11:06:42,677 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 11:06:42,678 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 11:06:42,678 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 11:06:42,678 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 11:06:42,678 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 7 Supporting invariants [] [2020-06-22 11:06:42,679 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 11:06:42,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:06:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:06:42,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 11:06:42,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:06:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:06:42,702 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 11:06:42,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:06:42,720 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 11:06:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:06:42,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 11:06:42,725 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:06:43,199 WARN L188 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-06-22 11:06:44,068 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~i~0 Int)) (<= 7 (+ c_oldRank0 (* 2 ULTIMATE.start_main_~i~0)))) is different from true [2020-06-22 11:06:44,069 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 5 predicates after loop cannibalization [2020-06-22 11:06:44,069 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 5 loop predicates [2020-06-22 11:06:44,070 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 11 states and 17 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-06-22 11:06:44,170 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 11 states and 17 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 53 states and 79 transitions. Complement of second has 20 states. [2020-06-22 11:06:44,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-06-22 11:06:44,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 11:06:44,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 22 transitions. [2020-06-22 11:06:44,172 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 2 letters. Loop has 3 letters. [2020-06-22 11:06:44,172 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:06:44,172 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 5 letters. Loop has 3 letters. [2020-06-22 11:06:44,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:06:44,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 2 letters. Loop has 6 letters. [2020-06-22 11:06:44,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:06:44,175 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 79 transitions. [2020-06-22 11:06:44,178 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 11:06:44,178 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 0 states and 0 transitions. [2020-06-22 11:06:44,179 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 11:06:44,179 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 11:06:44,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 11:06:44,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 11:06:44,179 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 11:06:44,179 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 11:06:44,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 11:06:44,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 11:06:44,183 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-06-22 11:06:44,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 11:06:44,186 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-06-22 11:06:44,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-06-22 11:06:44,187 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-06-22 11:06:44,187 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 11:06:44,187 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-06-22 11:06:44,188 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 11:06:44,188 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 11:06:44,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 11:06:44,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 11:06:44,188 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 11:06:44,188 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 11:06:44,188 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 11:06:44,188 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 11:06:44,188 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 11:06:44,188 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 11:06:44,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 11:06:44,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:06:44 BasicIcfg [2020-06-22 11:06:44,194 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 11:06:44,195 INFO L168 Benchmark]: Toolchain (without parser) took 4233.23 ms. Allocated memory was 649.6 MB in the beginning and 696.3 MB in the end (delta: 46.7 MB). Free memory was 558.8 MB in the beginning and 401.7 MB in the end (delta: 157.1 MB). Peak memory consumption was 203.8 MB. Max. memory is 50.3 GB. [2020-06-22 11:06:44,196 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 580.5 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 11:06:44,196 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.85 ms. Allocated memory was 649.6 MB in the beginning and 696.3 MB in the end (delta: 46.7 MB). Free memory was 558.8 MB in the beginning and 662.8 MB in the end (delta: -104.0 MB). Peak memory consumption was 28.8 MB. Max. memory is 50.3 GB. [2020-06-22 11:06:44,197 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.22 ms. Allocated memory is still 696.3 MB. Free memory was 662.8 MB in the beginning and 661.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. [2020-06-22 11:06:44,197 INFO L168 Benchmark]: Boogie Preprocessor took 19.56 ms. Allocated memory is still 696.3 MB. Free memory was 661.4 MB in the beginning and 658.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. [2020-06-22 11:06:44,198 INFO L168 Benchmark]: RCFGBuilder took 196.34 ms. Allocated memory is still 696.3 MB. Free memory was 658.3 MB in the beginning and 644.1 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. [2020-06-22 11:06:44,199 INFO L168 Benchmark]: BlockEncodingV2 took 74.79 ms. Allocated memory is still 696.3 MB. Free memory was 644.1 MB in the beginning and 640.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 50.3 GB. [2020-06-22 11:06:44,199 INFO L168 Benchmark]: TraceAbstraction took 157.57 ms. Allocated memory is still 696.3 MB. Free memory was 638.7 MB in the beginning and 630.4 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. [2020-06-22 11:06:44,200 INFO L168 Benchmark]: BuchiAutomizer took 3454.77 ms. Allocated memory is still 696.3 MB. Free memory was 630.4 MB in the beginning and 401.7 MB in the end (delta: 228.7 MB). Peak memory consumption was 228.7 MB. Max. memory is 50.3 GB. [2020-06-22 11:06:44,204 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 4 locations, 6 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 580.5 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 290.85 ms. Allocated memory was 649.6 MB in the beginning and 696.3 MB in the end (delta: 46.7 MB). Free memory was 558.8 MB in the beginning and 662.8 MB in the end (delta: -104.0 MB). Peak memory consumption was 28.8 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.22 ms. Allocated memory is still 696.3 MB. Free memory was 662.8 MB in the beginning and 661.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.56 ms. Allocated memory is still 696.3 MB. Free memory was 661.4 MB in the beginning and 658.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 196.34 ms. Allocated memory is still 696.3 MB. Free memory was 658.3 MB in the beginning and 644.1 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 74.79 ms. Allocated memory is still 696.3 MB. Free memory was 644.1 MB in the beginning and 640.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 50.3 GB. * TraceAbstraction took 157.57 ms. Allocated memory is still 696.3 MB. Free memory was 638.7 MB in the beginning and 630.4 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 3454.77 ms. Allocated memory is still 696.3 MB. Free memory was 630.4 MB in the beginning and 401.7 MB in the end (delta: 228.7 MB). Peak memory consumption was 228.7 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: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 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=4occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function -2 * i + 5 and consists of 6 locations. One nondeterministic module has affine ranking function -2 * j + 19 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * i + 7 and consists of 7 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 1.7s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 14 SDtfs, 33 SDslu, 9 SDs, 0 SdLazy, 61 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax186 hnf100 lsp38 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 11:06:36.728 ----------------------------------------------- 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 11:06:44.457 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check