/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 13:20:37,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 13:20:37,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 13:20:37,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 13:20:37,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 13:20:37,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 13:20:37,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 13:20:37,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 13:20:37,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 13:20:37,310 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 13:20:37,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 13:20:37,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 13:20:37,312 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 13:20:37,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 13:20:37,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 13:20:37,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 13:20:37,316 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 13:20:37,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 13:20:37,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 13:20:37,320 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 13:20:37,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 13:20:37,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 13:20:37,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 13:20:37,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 13:20:37,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 13:20:37,327 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 13:20:37,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 13:20:37,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 13:20:37,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 13:20:37,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 13:20:37,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 13:20:37,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 13:20:37,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 13:20:37,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 13:20:37,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 13:20:37,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 13:20:37,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 13:20:37,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 13:20:37,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 13:20:37,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 13:20:37,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 13:20:37,336 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 13:20:37,350 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 13:20:37,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 13:20:37,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 13:20:37,352 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 13:20:37,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 13:20:37,352 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 13:20:37,352 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 13:20:37,353 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 13:20:37,353 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 13:20:37,353 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 13:20:37,353 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 13:20:37,353 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 13:20:37,353 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 13:20:37,354 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 13:20:37,354 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:20:37,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 13:20:37,354 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 13:20:37,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 13:20:37,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 13:20:37,355 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 13:20:37,355 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 13:20:37,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 13:20:37,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 13:20:37,356 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 13:20:37,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 13:20:37,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 13:20:37,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 13:20:37,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 13:20:37,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 13:20:37,519 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 13:20:37,533 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 13:20:37,537 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 13:20:37,538 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 13:20:37,538 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 13:20:37,539 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 13:20:37,603 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_RfRfSd/tmp/29e47bb401144f99abb95d670a8201f7/FLAG3f73e7cc7 [2020-07-01 13:20:37,940 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 13:20:37,941 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 13:20:37,948 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_RfRfSd/tmp/29e47bb401144f99abb95d670a8201f7/FLAG3f73e7cc7 [2020-07-01 13:20:38,349 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_RfRfSd/tmp/29e47bb401144f99abb95d670a8201f7 [2020-07-01 13:20:38,360 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 13:20:38,362 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 13:20:38,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 13:20:38,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 13:20:38,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 13:20:38,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 01:20:38" (1/1) ... [2020-07-01 13:20:38,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63fdf70c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:20:38, skipping insertion in model container [2020-07-01 13:20:38,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 01:20:38" (1/1) ... [2020-07-01 13:20:38,378 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 13:20:38,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 13:20:38,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 13:20:38,620 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 13:20:38,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 13:20:38,654 INFO L208 MainTranslator]: Completed translation [2020-07-01 13:20:38,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:20:38 WrapperNode [2020-07-01 13:20:38,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 13:20:38,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 13:20:38,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 13:20:38,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 13:20:38,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:20:38" (1/1) ... [2020-07-01 13:20:38,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:20:38" (1/1) ... [2020-07-01 13:20:38,689 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 13:20:38,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 13:20:38,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 13:20:38,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 13:20:38,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:20:38" (1/1) ... [2020-07-01 13:20:38,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:20:38" (1/1) ... [2020-07-01 13:20:38,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:20:38" (1/1) ... [2020-07-01 13:20:38,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:20:38" (1/1) ... [2020-07-01 13:20:38,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:20:38" (1/1) ... [2020-07-01 13:20:38,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:20:38" (1/1) ... [2020-07-01 13:20:38,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:20:38" (1/1) ... [2020-07-01 13:20:38,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 13:20:38,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 13:20:38,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 13:20:38,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 13:20:38,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:20:38" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 13:20:38,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 13:20:38,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 13:20:38,948 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 13:20:38,949 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 13:20:38,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:20:38 BoogieIcfgContainer [2020-07-01 13:20:38,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 13:20:38,953 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 13:20:38,953 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 13:20:38,955 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 13:20:38,956 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:20:38" (1/1) ... [2020-07-01 13:20:38,970 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 15 edges [2020-07-01 13:20:38,971 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 13:20:38,972 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 13:20:38,973 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 13:20:38,973 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 13:20:38,975 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 13:20:38,975 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 13:20:38,976 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 13:20:38,993 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 13:20:39,014 INFO L200 BlockEncoder]: SBE split 6 edges [2020-07-01 13:20:39,018 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 13:20:39,020 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 13:20:39,030 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 13:20:39,033 INFO L70 RemoveSinkStates]: Removed 5 edges and 2 locations by removing sink states [2020-07-01 13:20:39,034 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 13:20:39,034 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 13:20:39,034 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 13:20:39,035 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 13:20:39,035 INFO L313 BlockEncoder]: Encoded RCFG 6 locations, 16 edges [2020-07-01 13:20:39,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:20:39 BasicIcfg [2020-07-01 13:20:39,036 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 13:20:39,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 13:20:39,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 13:20:39,040 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 13:20:39,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 01:20:38" (1/4) ... [2020-07-01 13:20:39,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e759cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:20:39, skipping insertion in model container [2020-07-01 13:20:39,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:20:38" (2/4) ... [2020-07-01 13:20:39,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e759cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:20:39, skipping insertion in model container [2020-07-01 13:20:39,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:20:38" (3/4) ... [2020-07-01 13:20:39,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e759cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:20:39, skipping insertion in model container [2020-07-01 13:20:39,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:20:39" (4/4) ... [2020-07-01 13:20:39,044 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 13:20:39,055 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 13:20:39,061 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 13:20:39,075 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 13:20:39,101 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 13:20:39,102 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 13:20:39,102 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 13:20:39,102 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 13:20:39,102 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 13:20:39,103 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 13:20:39,103 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 13:20:39,103 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 13:20:39,117 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-07-01 13:20:39,123 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 13:20:39,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-07-01 13:20:39,177 INFO L268 CegarLoopResult]: For program point L32(lines 32 36) no Hoare annotation was computed. [2020-07-01 13:20:39,178 INFO L271 CegarLoopResult]: At program point L32-2(lines 21 37) the Hoare annotation is: true [2020-07-01 13:20:39,178 INFO L268 CegarLoopResult]: For program point L30(lines 30 36) no Hoare annotation was computed. [2020-07-01 13:20:39,178 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 13:20:39,178 INFO L268 CegarLoopResult]: For program point L23(lines 23 29) no Hoare annotation was computed. [2020-07-01 13:20:39,178 INFO L268 CegarLoopResult]: For program point L22(lines 22 36) no Hoare annotation was computed. [2020-07-01 13:20:39,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:20:39 BasicIcfg [2020-07-01 13:20:39,187 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 13:20:39,188 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 13:20:39,188 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 13:20:39,193 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 13:20:39,194 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:20:39,194 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 01:20:38" (1/5) ... [2020-07-01 13:20:39,195 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@166fb462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 01:20:39, skipping insertion in model container [2020-07-01 13:20:39,195 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:20:39,195 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:20:38" (2/5) ... [2020-07-01 13:20:39,195 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@166fb462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 01:20:39, skipping insertion in model container [2020-07-01 13:20:39,195 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:20:39,196 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:20:38" (3/5) ... [2020-07-01 13:20:39,196 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@166fb462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:20:39, skipping insertion in model container [2020-07-01 13:20:39,196 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:20:39,196 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:20:39" (4/5) ... [2020-07-01 13:20:39,197 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@166fb462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:20:39, skipping insertion in model container [2020-07-01 13:20:39,197 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:20:39,197 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:20:39" (5/5) ... [2020-07-01 13:20:39,198 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 13:20:39,226 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 13:20:39,227 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 13:20:39,227 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 13:20:39,227 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 13:20:39,227 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 13:20:39,227 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 13:20:39,228 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 13:20:39,228 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 13:20:39,231 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-01 13:20:39,248 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 13:20:39,248 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:20:39,249 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:20:39,255 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 13:20:39,255 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 13:20:39,255 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 13:20:39,256 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-01 13:20:39,256 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 13:20:39,257 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:20:39,257 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:20:39,257 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 13:20:39,257 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 13:20:39,262 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [40] ULTIMATE.startENTRY-->L32-2: Formula: (and (= v_ULTIMATE.start_main_~tk~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~an~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~bn~0_1 |v_ULTIMATE.start_main_#t~nondet4_4|) (= v_ULTIMATE.start_main_~k~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~nondet8=|v_ULTIMATE.start_main_#t~nondet8_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_1|, ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet4_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet5_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_#t~nondet8, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~nondet7, ULTIMATE.start_main_~tk~0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~bn~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~an~0] 7#L32-2true [2020-07-01 13:20:39,263 INFO L796 eck$LassoCheckResult]: Loop: 7#L32-2true [60] L32-2-->L22: Formula: (and (<= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~an~0_7) (<= (+ v_ULTIMATE.start_main_~tk~0_7 1) v_ULTIMATE.start_main_~k~0_7) (<= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~bn~0_7)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 5#L22true [43] L22-->L23: Formula: (and (<= v_ULTIMATE.start_main_~i~0_8 v_ULTIMATE.start_main_~an~0_8) (<= v_ULTIMATE.start_main_~j~0_8 v_ULTIMATE.start_main_~bn~0_8)) InVars {ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_8} OutVars{ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_8} AuxVars[] AssignedVars[] 6#L23true [69] L23-->L32-2: Formula: (and (= v_ULTIMATE.start_main_~k~0_8 |v_ULTIMATE.start_main_#t~nondet7_3|) (= v_ULTIMATE.start_main_~tk~0_8 v_ULTIMATE.start_main_~k~0_9) (> 0 |v_ULTIMATE.start_main_#t~nondet6_3|) (= v_ULTIMATE.start_main_~j~0_9 (+ v_ULTIMATE.start_main_~k~0_9 v_ULTIMATE.start_main_~j~0_10))) InVars {ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_9, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_3|, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_3|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_8, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_8, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_2|, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_2|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~tk~0, ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~nondet7] 7#L32-2true [2020-07-01 13:20:39,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:20:39,269 INFO L82 PathProgramCache]: Analyzing trace with hash 71, now seen corresponding path program 1 times [2020-07-01 13:20:39,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:20:39,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657834045] [2020-07-01 13:20:39,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:20:39,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:20:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:20:39,352 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:20:39,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:20:39,353 INFO L82 PathProgramCache]: Analyzing trace with hash 88853, now seen corresponding path program 1 times [2020-07-01 13:20:39,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:20:39,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756443717] [2020-07-01 13:20:39,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:20:39,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:20:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:20:39,374 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:20:39,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:20:39,376 INFO L82 PathProgramCache]: Analyzing trace with hash 2174223, now seen corresponding path program 1 times [2020-07-01 13:20:39,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:20:39,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039506437] [2020-07-01 13:20:39,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:20:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:20:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:20:39,397 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:20:39,475 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:20:39,476 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:20:39,476 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:20:39,476 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:20:39,476 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:20:39,477 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:20:39,477 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:20:39,477 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:20:39,477 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 13:20:39,477 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:20:39,477 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:20:39,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:20:39,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:20:39,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:20:39,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:20:39,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:20:39,655 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:20:39,656 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:20:39,665 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:20:39,665 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:20:39,676 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:20:39,676 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~an~0=0, ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~an~0=0, ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:20:39,712 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:20:39,712 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:20:39,717 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:20:39,717 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6=-1} Honda state: {ULTIMATE.start_main_#t~nondet6=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:20:39,750 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:20:39,750 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:20:39,755 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:20:39,755 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 [2020-07-01 13:20:39,787 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:20:39,788 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:20:39,792 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:20:39,792 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 [2020-07-01 13:20:39,825 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:20:39,825 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:20:39,865 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:20:39,865 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:20:42,333 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 13:20:42,337 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:20:42,337 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:20:42,337 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:20:42,337 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:20:42,337 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 13:20:42,337 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:20:42,338 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:20:42,338 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:20:42,338 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 13:20:42,338 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:20:42,338 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:20:42,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:20:42,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:20:42,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:20:42,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:20:42,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:20:42,472 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:20:42,478 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 13:20:42,483 INFO L120 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 [2020-07-01 13:20:42,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:20:42,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:20:42,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:20:42,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:20:42,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:20:42,490 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:20:42,490 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:20:42,493 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:20:42,531 INFO L120 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 [2020-07-01 13:20:42,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:20:42,533 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:20:42,534 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:20:42,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:20:42,534 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:20:42,535 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:20:42,535 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:20:42,542 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 13:20:42,577 INFO L120 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 [2020-07-01 13:20:42,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:20:42,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:20:42,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:20:42,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:20:42,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:20:42,584 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:20:42,589 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 13:20:42,623 INFO L120 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 [2020-07-01 13:20:42,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:20:42,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:20:42,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:20:42,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:20:42,629 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:20:42,629 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:20:42,636 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 13:20:42,670 INFO L120 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 [2020-07-01 13:20:42,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:20:42,673 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:20:42,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:20:42,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:20:42,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:20:42,676 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:20:42,676 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:20:42,680 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 13:20:42,710 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 13:20:42,714 INFO L120 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 [2020-07-01 13:20:42,716 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:20:42,716 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:20:42,717 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:20:42,717 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:20:42,717 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 13:20:42,718 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 13:20:42,718 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:20:42,720 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:20:42,753 INFO L120 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 [2020-07-01 13:20:42,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:20:42,755 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:20:42,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:20:42,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:20:42,756 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 13:20:42,757 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 13:20:42,757 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:20:42,760 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:20:42,793 INFO L120 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 [2020-07-01 13:20:42,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:20:42,795 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:20:42,795 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:20:42,796 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 13:20:42,800 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-07-01 13:20:42,800 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-07-01 13:20:42,808 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:20:42,841 INFO L120 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 [2020-07-01 13:20:42,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:20:42,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:20:42,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:20:42,844 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 13:20:42,848 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-07-01 13:20:42,848 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-07-01 13:20:42,854 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:20:42,887 INFO L120 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 [2020-07-01 13:20:42,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:20:42,890 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:20:42,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:20:42,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:20:42,890 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 13:20:42,893 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 13:20:42,893 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:20:42,899 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 13:20:42,915 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 13:20:42,915 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:20:42,922 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 13:20:42,923 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 13:20:42,923 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 13:20:42,924 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~tk~0 f1 = 2*ULTIMATE.start_main_~bn~0 - 2*ULTIMATE.start_main_~j~0 + 1 Supporting invariants [] [2020-07-01 13:20:42,958 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 13:20:48,342 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (* (- 2) c_ULTIMATE.start_main_~tk~0))) (let ((.cse1 (> .cse2 0))) (let ((.cse0 (ite .cse1 1 0))) (or (and (>= c_oldRank0 0) (> c_oldRank0 .cse0)) (and (> c_oldRank1 (ite .cse1 .cse2 (+ (* 2 c_ULTIMATE.start_main_~bn~0) (* (- 2) c_ULTIMATE.start_main_~j~0) 1))) (>= c_oldRank1 0) (>= c_oldRank0 .cse0)) c_unseeded)))) is different from false [2020-07-01 13:20:48,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:20:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:20:48,376 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:20:48,377 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:20:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:20:48,392 INFO L264 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 13:20:48,393 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:20:48,415 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 13:20:48,417 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 13:20:48,422 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-01 13:20:48,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:21:10,215 WARN L838 $PredicateComparison]: unable to prove that (<= (let ((.cse0 (* (- 2) c_ULTIMATE.start_main_~tk~0))) (ite (> .cse0 0) .cse0 (+ (* 2 c_ULTIMATE.start_main_~bn~0) (* (- 2) c_ULTIMATE.start_main_~j~0) 1))) c_oldRank1) is different from false [2020-07-01 13:21:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:21:10,251 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 13:21:10,251 INFO L98 LoopCannibalizer]: 12 predicates before loop cannibalization 12 predicates after loop cannibalization [2020-07-01 13:21:10,257 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 12 loop predicates [2020-07-01 13:21:10,258 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states. Second operand 3 states. [2020-07-01 13:21:10,555 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 30 [2020-07-01 13:21:10,722 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states.. Second operand 3 states. Result 28 states and 81 transitions. Complement of second has 7 states. [2020-07-01 13:21:10,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 13:21:10,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 13:21:10,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 62 transitions. [2020-07-01 13:21:10,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 62 transitions. Stem has 1 letters. Loop has 3 letters. [2020-07-01 13:21:10,729 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:21:10,729 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 62 transitions. Stem has 4 letters. Loop has 3 letters. [2020-07-01 13:21:10,729 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:21:10,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 62 transitions. Stem has 1 letters. Loop has 6 letters. [2020-07-01 13:21:10,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:21:10,738 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 81 transitions. [2020-07-01 13:21:10,741 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2020-07-01 13:21:10,746 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 23 states and 64 transitions. [2020-07-01 13:21:10,747 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-07-01 13:21:10,747 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-07-01 13:21:10,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 64 transitions. [2020-07-01 13:21:10,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 13:21:10,748 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 64 transitions. [2020-07-01 13:21:10,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 64 transitions. [2020-07-01 13:21:10,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2020-07-01 13:21:10,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-07-01 13:21:10,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 59 transitions. [2020-07-01 13:21:10,780 INFO L711 BuchiCegarLoop]: Abstraction has 21 states and 59 transitions. [2020-07-01 13:21:10,780 INFO L591 BuchiCegarLoop]: Abstraction has 21 states and 59 transitions. [2020-07-01 13:21:10,780 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 13:21:10,780 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 59 transitions. [2020-07-01 13:21:10,782 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2020-07-01 13:21:10,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:21:10,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:21:10,782 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 13:21:10,782 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 13:21:10,783 INFO L794 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRY [40] ULTIMATE.startENTRY-->L32-2: Formula: (and (= v_ULTIMATE.start_main_~tk~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~an~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~bn~0_1 |v_ULTIMATE.start_main_#t~nondet4_4|) (= v_ULTIMATE.start_main_~k~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~nondet8=|v_ULTIMATE.start_main_#t~nondet8_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_1|, ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet4_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet5_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_#t~nondet8, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~nondet7, ULTIMATE.start_main_~tk~0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~bn~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~an~0] 96#L32-2 [62] L32-2-->L22: Formula: (and (<= v_ULTIMATE.start_main_~an~0_7 v_ULTIMATE.start_main_~i~0_7) (<= (+ v_ULTIMATE.start_main_~tk~0_7 1) v_ULTIMATE.start_main_~k~0_7) (<= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~bn~0_7)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 97#L22 [2020-07-01 13:21:10,783 INFO L796 eck$LassoCheckResult]: Loop: 97#L22 [68] L22-->L30: Formula: (> v_ULTIMATE.start_main_~i~0_11 v_ULTIMATE.start_main_~an~0_9) InVars {ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_9, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_9, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[] 98#L30 [53] L30-->L32-2: Formula: (and (<= v_ULTIMATE.start_main_~i~0_13 v_ULTIMATE.start_main_~an~0_10) (<= v_ULTIMATE.start_main_~bn~0_10 v_ULTIMATE.start_main_~j~0_12) (= v_ULTIMATE.start_main_~i~0_12 (+ v_ULTIMATE.start_main_~i~0_13 1))) InVars {ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_12, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_10} OutVars{ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_12, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 103#L32-2 [60] L32-2-->L22: Formula: (and (<= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~an~0_7) (<= (+ v_ULTIMATE.start_main_~tk~0_7 1) v_ULTIMATE.start_main_~k~0_7) (<= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~bn~0_7)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 97#L22 [2020-07-01 13:21:10,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:21:10,783 INFO L82 PathProgramCache]: Analyzing trace with hash 2263, now seen corresponding path program 1 times [2020-07-01 13:21:10,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:21:10,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396494675] [2020-07-01 13:21:10,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:21:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:21:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:21:10,796 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:21:10,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:21:10,796 INFO L82 PathProgramCache]: Analyzing trace with hash 96842, now seen corresponding path program 1 times [2020-07-01 13:21:10,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:21:10,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976128791] [2020-07-01 13:21:10,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:21:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:21:10,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:21:10,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976128791] [2020-07-01 13:21:10,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 13:21:10,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 13:21:10,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488659806] [2020-07-01 13:21:10,835 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-01 13:21:10,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:21:10,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 13:21:10,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 13:21:10,839 INFO L87 Difference]: Start difference. First operand 21 states and 59 transitions. cyclomatic complexity: 41 Second operand 3 states. [2020-07-01 13:21:10,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:21:10,889 INFO L93 Difference]: Finished difference Result 30 states and 66 transitions. [2020-07-01 13:21:10,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 13:21:10,892 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 66 transitions. [2020-07-01 13:21:10,894 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-07-01 13:21:10,895 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 17 states and 42 transitions. [2020-07-01 13:21:10,895 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-07-01 13:21:10,896 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-07-01 13:21:10,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 42 transitions. [2020-07-01 13:21:10,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 13:21:10,896 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 42 transitions. [2020-07-01 13:21:10,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 42 transitions. [2020-07-01 13:21:10,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-07-01 13:21:10,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-01 13:21:10,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 42 transitions. [2020-07-01 13:21:10,898 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 42 transitions. [2020-07-01 13:21:10,898 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 42 transitions. [2020-07-01 13:21:10,899 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 13:21:10,899 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 42 transitions. [2020-07-01 13:21:10,899 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-07-01 13:21:10,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:21:10,900 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:21:10,900 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 13:21:10,900 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 13:21:10,900 INFO L794 eck$LassoCheckResult]: Stem: 152#ULTIMATE.startENTRY [40] ULTIMATE.startENTRY-->L32-2: Formula: (and (= v_ULTIMATE.start_main_~tk~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~an~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~bn~0_1 |v_ULTIMATE.start_main_#t~nondet4_4|) (= v_ULTIMATE.start_main_~k~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~nondet8=|v_ULTIMATE.start_main_#t~nondet8_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_1|, ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet4_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet5_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_#t~nondet8, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~nondet7, ULTIMATE.start_main_~tk~0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~bn~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~an~0] 153#L32-2 [62] L32-2-->L22: Formula: (and (<= v_ULTIMATE.start_main_~an~0_7 v_ULTIMATE.start_main_~i~0_7) (<= (+ v_ULTIMATE.start_main_~tk~0_7 1) v_ULTIMATE.start_main_~k~0_7) (<= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~bn~0_7)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 154#L22 [2020-07-01 13:21:10,901 INFO L796 eck$LassoCheckResult]: Loop: 154#L22 [43] L22-->L23: Formula: (and (<= v_ULTIMATE.start_main_~i~0_8 v_ULTIMATE.start_main_~an~0_8) (<= v_ULTIMATE.start_main_~j~0_8 v_ULTIMATE.start_main_~bn~0_8)) InVars {ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_8} OutVars{ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_8} AuxVars[] AssignedVars[] 155#L23 [47] L23-->L32-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_9 (+ v_ULTIMATE.start_main_~i~0_10 1)) (= 0 |v_ULTIMATE.start_main_#t~nondet6_5|)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_5|} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~nondet6] 148#L32-2 [60] L32-2-->L22: Formula: (and (<= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~an~0_7) (<= (+ v_ULTIMATE.start_main_~tk~0_7 1) v_ULTIMATE.start_main_~k~0_7) (<= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~bn~0_7)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 154#L22 [2020-07-01 13:21:10,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:21:10,901 INFO L82 PathProgramCache]: Analyzing trace with hash 2263, now seen corresponding path program 2 times [2020-07-01 13:21:10,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:21:10,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935572872] [2020-07-01 13:21:10,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:21:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:21:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:21:10,912 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:21:10,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:21:10,912 INFO L82 PathProgramCache]: Analyzing trace with hash 72631, now seen corresponding path program 1 times [2020-07-01 13:21:10,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:21:10,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220553246] [2020-07-01 13:21:10,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:21:10,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:21:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:21:10,922 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:21:10,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:21:10,922 INFO L82 PathProgramCache]: Analyzing trace with hash 67459873, now seen corresponding path program 1 times [2020-07-01 13:21:10,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:21:10,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244504865] [2020-07-01 13:21:10,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:21:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:21:10,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:21:10,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244504865] [2020-07-01 13:21:10,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 13:21:10,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-01 13:21:10,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102510924] [2020-07-01 13:21:10,995 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:21:10,995 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:21:10,995 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:21:10,996 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:21:10,996 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:21:10,996 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:21:10,996 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:21:10,996 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:21:10,996 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 13:21:10,996 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:21:10,996 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:21:10,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:11,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:11,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:11,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:11,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:11,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:11,084 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:21:11,084 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:21:11,089 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:21:11,089 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:21:11,094 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:21:11,094 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:21:11,128 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:21:11,128 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:21:11,132 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:21:11,132 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:21:11,166 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:21:11,166 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:21:11,170 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:21:11,170 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6=0} Honda state: {ULTIMATE.start_main_#t~nondet6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:21:11,203 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:21:11,203 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:21:11,208 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:21:11,208 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~bn~0=0} Honda state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~bn~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:21:11,241 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:21:11,241 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:21:11,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:21:11,279 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:21:11,697 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 13:21:11,699 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:21:11,699 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:21:11,699 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:21:11,700 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:21:11,700 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 13:21:11,700 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:21:11,700 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:21:11,700 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:21:11,700 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 13:21:11,700 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:21:11,700 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:21:11,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:11,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:11,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:11,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:11,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:11,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:11,770 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:21:11,770 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:21:11,774 INFO L120 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 [2020-07-01 13:21:11,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:21:11,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:21:11,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:21:11,777 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:21:11,779 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:21:11,779 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:21:11,783 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:21:11,816 INFO L120 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 [2020-07-01 13:21:11,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:21:11,818 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:21:11,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:21:11,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:21:11,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:21:11,819 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:21:11,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:21:11,821 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:21:11,855 INFO L120 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 [2020-07-01 13:21:11,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:21:11,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:21:11,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:21:11,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:21:11,859 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:21:11,859 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:21:11,863 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:21:11,897 INFO L120 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 [2020-07-01 13:21:11,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:21:11,899 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:21:11,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:21:11,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:21:11,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:21:11,900 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:21:11,900 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:21:11,902 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:21:11,935 INFO L120 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 [2020-07-01 13:21:11,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:21:11,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:21:11,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:21:11,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:21:11,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:21:11,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:21:11,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:21:11,941 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 13:21:11,945 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 13:21:11,945 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:21:11,949 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 13:21:11,949 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 13:21:11,949 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 13:21:11,949 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~an~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~an~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-07-01 13:21:11,979 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 13:21:11,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:21:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:21:11,999 INFO L264 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:21:11,999 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:21:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:21:12,004 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:21:12,005 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:21:12,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:21:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:21:12,019 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:21:12,019 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:21:12,047 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 13:21:12,047 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 [2020-07-01 13:21:12,048 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 17 states and 42 transitions. cyclomatic complexity: 28 Second operand 4 states. [2020-07-01 13:21:12,124 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 17 states and 42 transitions. cyclomatic complexity: 28. Second operand 4 states. Result 63 states and 139 transitions. Complement of second has 8 states. [2020-07-01 13:21:12,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 13:21:12,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 13:21:12,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2020-07-01 13:21:12,126 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 2 letters. Loop has 3 letters. [2020-07-01 13:21:12,126 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:21:12,126 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-01 13:21:12,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:21:12,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 2 letters. Loop has 6 letters. [2020-07-01 13:21:12,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:21:12,129 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 139 transitions. [2020-07-01 13:21:12,131 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-07-01 13:21:12,132 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 17 states and 34 transitions. [2020-07-01 13:21:12,132 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-07-01 13:21:12,132 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-07-01 13:21:12,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 34 transitions. [2020-07-01 13:21:12,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 13:21:12,133 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 34 transitions. [2020-07-01 13:21:12,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 34 transitions. [2020-07-01 13:21:12,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-07-01 13:21:12,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-01 13:21:12,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 34 transitions. [2020-07-01 13:21:12,135 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 34 transitions. [2020-07-01 13:21:12,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:21:12,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-01 13:21:12,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-01 13:21:12,135 INFO L87 Difference]: Start difference. First operand 17 states and 34 transitions. Second operand 4 states. [2020-07-01 13:21:12,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:21:12,179 INFO L93 Difference]: Finished difference Result 32 states and 53 transitions. [2020-07-01 13:21:12,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-01 13:21:12,181 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 53 transitions. [2020-07-01 13:21:12,183 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-07-01 13:21:12,183 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 17 states and 33 transitions. [2020-07-01 13:21:12,183 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-07-01 13:21:12,183 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-07-01 13:21:12,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 33 transitions. [2020-07-01 13:21:12,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 13:21:12,184 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 33 transitions. [2020-07-01 13:21:12,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 33 transitions. [2020-07-01 13:21:12,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-07-01 13:21:12,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-01 13:21:12,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 33 transitions. [2020-07-01 13:21:12,186 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 33 transitions. [2020-07-01 13:21:12,186 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 33 transitions. [2020-07-01 13:21:12,186 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 13:21:12,186 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 33 transitions. [2020-07-01 13:21:12,187 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-07-01 13:21:12,187 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:21:12,187 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:21:12,187 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 13:21:12,187 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 13:21:12,188 INFO L794 eck$LassoCheckResult]: Stem: 326#ULTIMATE.startENTRY [40] ULTIMATE.startENTRY-->L32-2: Formula: (and (= v_ULTIMATE.start_main_~tk~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~an~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~bn~0_1 |v_ULTIMATE.start_main_#t~nondet4_4|) (= v_ULTIMATE.start_main_~k~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~nondet8=|v_ULTIMATE.start_main_#t~nondet8_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_1|, ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet4_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet5_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_#t~nondet8, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~nondet7, ULTIMATE.start_main_~tk~0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~bn~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~an~0] 327#L32-2 [60] L32-2-->L22: Formula: (and (<= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~an~0_7) (<= (+ v_ULTIMATE.start_main_~tk~0_7 1) v_ULTIMATE.start_main_~k~0_7) (<= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~bn~0_7)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 332#L22 [2020-07-01 13:21:12,188 INFO L796 eck$LassoCheckResult]: Loop: 332#L22 [43] L22-->L23: Formula: (and (<= v_ULTIMATE.start_main_~i~0_8 v_ULTIMATE.start_main_~an~0_8) (<= v_ULTIMATE.start_main_~j~0_8 v_ULTIMATE.start_main_~bn~0_8)) InVars {ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_8} OutVars{ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_8} AuxVars[] AssignedVars[] 333#L23 [47] L23-->L32-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_9 (+ v_ULTIMATE.start_main_~i~0_10 1)) (= 0 |v_ULTIMATE.start_main_#t~nondet6_5|)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_5|} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~nondet6] 329#L32-2 [60] L32-2-->L22: Formula: (and (<= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~an~0_7) (<= (+ v_ULTIMATE.start_main_~tk~0_7 1) v_ULTIMATE.start_main_~k~0_7) (<= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~bn~0_7)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 332#L22 [2020-07-01 13:21:12,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:21:12,188 INFO L82 PathProgramCache]: Analyzing trace with hash 2261, now seen corresponding path program 1 times [2020-07-01 13:21:12,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:21:12,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059142938] [2020-07-01 13:21:12,189 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:21:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:21:12,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:21:12,199 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:21:12,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:21:12,200 INFO L82 PathProgramCache]: Analyzing trace with hash 72631, now seen corresponding path program 2 times [2020-07-01 13:21:12,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:21:12,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881643750] [2020-07-01 13:21:12,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:21:12,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:21:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:21:12,208 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:21:12,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:21:12,209 INFO L82 PathProgramCache]: Analyzing trace with hash 67400291, now seen corresponding path program 1 times [2020-07-01 13:21:12,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:21:12,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566962167] [2020-07-01 13:21:12,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:21:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:21:12,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:21:12,221 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:21:12,251 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:21:12,251 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:21:12,251 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:21:12,251 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:21:12,251 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:21:12,252 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:21:12,252 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:21:12,252 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:21:12,252 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 13:21:12,252 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:21:12,252 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:21:12,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:12,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:12,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:12,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:12,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:12,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:12,320 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:21:12,320 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:21:12,325 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:21:12,325 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:21:12,329 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:21:12,329 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tk~0=0, ULTIMATE.start_main_~k~0=1} Honda state: {ULTIMATE.start_main_~tk~0=0, ULTIMATE.start_main_~k~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:21:12,365 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:21:12,365 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:21:12,370 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:21:12,370 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~bn~0=0} Honda state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~bn~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:21:12,403 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:21:12,403 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:21:12,408 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:21:12,408 INFO L440 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/sandbox2/solver/bin/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:21:12,443 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:21:12,443 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:21:12,446 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:21:12,447 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6=0} Honda state: {ULTIMATE.start_main_#t~nondet6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:21:12,480 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:21:12,480 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:21:12,484 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:21:12,484 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:21:12,518 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:21:12,518 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:21:12,555 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:21:12,555 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:21:12,971 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 13:21:12,974 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:21:12,974 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:21:12,974 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:21:12,974 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:21:12,974 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 13:21:12,974 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:21:12,974 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:21:12,974 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:21:12,975 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 13:21:12,975 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:21:12,975 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:21:12,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:12,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:12,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:12,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:12,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:12,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:13,042 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:21:13,043 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:21:13,047 INFO L120 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 [2020-07-01 13:21:13,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:21:13,049 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:21:13,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:21:13,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:21:13,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:21:13,050 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:21:13,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:21:13,052 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:21:13,086 INFO L120 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 [2020-07-01 13:21:13,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:21:13,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:21:13,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:21:13,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:21:13,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:21:13,089 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:21:13,089 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:21:13,091 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:21:13,124 INFO L120 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 [2020-07-01 13:21:13,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:21:13,126 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:21:13,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:21:13,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:21:13,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:21:13,127 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:21:13,127 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:21:13,129 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:21:13,162 INFO L120 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 [2020-07-01 13:21:13,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:21:13,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:21:13,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:21:13,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:21:13,166 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:21:13,166 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:21:13,170 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:21:13,202 INFO L120 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 [2020-07-01 13:21:13,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:21:13,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:21:13,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:21:13,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:21:13,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:21:13,206 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:21:13,206 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:21:13,209 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 13:21:13,213 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 13:21:13,213 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:21:13,217 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 13:21:13,217 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 13:21:13,217 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 13:21:13,217 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~an~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~an~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-07-01 13:21:13,246 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 13:21:13,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:21:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:21:13,266 INFO L264 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:21:13,266 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:21:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:21:13,271 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:21:13,271 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:21:13,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:21:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:21:13,285 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:21:13,285 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:21:13,310 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 13:21:13,311 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 [2020-07-01 13:21:13,311 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 17 states and 33 transitions. cyclomatic complexity: 19 Second operand 4 states. [2020-07-01 13:21:13,377 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 17 states and 33 transitions. cyclomatic complexity: 19. Second operand 4 states. Result 60 states and 109 transitions. Complement of second has 8 states. [2020-07-01 13:21:13,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2020-07-01 13:21:13,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 13:21:13,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-07-01 13:21:13,378 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 3 letters. [2020-07-01 13:21:13,379 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:21:13,379 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-01 13:21:13,379 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:21:13,379 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 6 letters. [2020-07-01 13:21:13,379 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:21:13,381 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 109 transitions. [2020-07-01 13:21:13,383 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-07-01 13:21:13,383 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 17 states and 25 transitions. [2020-07-01 13:21:13,383 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-07-01 13:21:13,383 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-07-01 13:21:13,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 25 transitions. [2020-07-01 13:21:13,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 13:21:13,384 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 25 transitions. [2020-07-01 13:21:13,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 25 transitions. [2020-07-01 13:21:13,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-07-01 13:21:13,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-01 13:21:13,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 25 transitions. [2020-07-01 13:21:13,386 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 25 transitions. [2020-07-01 13:21:13,386 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 25 transitions. [2020-07-01 13:21:13,386 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 13:21:13,386 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 25 transitions. [2020-07-01 13:21:13,386 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-07-01 13:21:13,387 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:21:13,387 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:21:13,387 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 13:21:13,387 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 13:21:13,387 INFO L794 eck$LassoCheckResult]: Stem: 458#ULTIMATE.startENTRY [40] ULTIMATE.startENTRY-->L32-2: Formula: (and (= v_ULTIMATE.start_main_~tk~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~an~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~bn~0_1 |v_ULTIMATE.start_main_#t~nondet4_4|) (= v_ULTIMATE.start_main_~k~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~nondet8=|v_ULTIMATE.start_main_#t~nondet8_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_1|, ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet4_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet5_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_#t~nondet8, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~nondet7, ULTIMATE.start_main_~tk~0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~bn~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~an~0] 459#L32-2 [61] L32-2-->L22: Formula: (and (<= v_ULTIMATE.start_main_~bn~0_7 v_ULTIMATE.start_main_~j~0_7) (<= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~an~0_7) (<= (+ v_ULTIMATE.start_main_~tk~0_7 1) v_ULTIMATE.start_main_~k~0_7)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 469#L22 [2020-07-01 13:21:13,388 INFO L796 eck$LassoCheckResult]: Loop: 469#L22 [67] L22-->L30: Formula: (> v_ULTIMATE.start_main_~j~0_11 v_ULTIMATE.start_main_~bn~0_9) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_11, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_9} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_11, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_9} AuxVars[] AssignedVars[] 465#L30 [53] L30-->L32-2: Formula: (and (<= v_ULTIMATE.start_main_~i~0_13 v_ULTIMATE.start_main_~an~0_10) (<= v_ULTIMATE.start_main_~bn~0_10 v_ULTIMATE.start_main_~j~0_12) (= v_ULTIMATE.start_main_~i~0_12 (+ v_ULTIMATE.start_main_~i~0_13 1))) InVars {ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_12, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_10} OutVars{ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_12, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 466#L32-2 [61] L32-2-->L22: Formula: (and (<= v_ULTIMATE.start_main_~bn~0_7 v_ULTIMATE.start_main_~j~0_7) (<= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~an~0_7) (<= (+ v_ULTIMATE.start_main_~tk~0_7 1) v_ULTIMATE.start_main_~k~0_7)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 469#L22 [2020-07-01 13:21:13,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:21:13,388 INFO L82 PathProgramCache]: Analyzing trace with hash 2262, now seen corresponding path program 1 times [2020-07-01 13:21:13,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:21:13,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966386619] [2020-07-01 13:21:13,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:21:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:21:13,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:21:13,397 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:21:13,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:21:13,397 INFO L82 PathProgramCache]: Analyzing trace with hash 95882, now seen corresponding path program 1 times [2020-07-01 13:21:13,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:21:13,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476351649] [2020-07-01 13:21:13,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:21:13,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:21:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:21:13,406 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:21:13,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:21:13,407 INFO L82 PathProgramCache]: Analyzing trace with hash 67453333, now seen corresponding path program 1 times [2020-07-01 13:21:13,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:21:13,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325048049] [2020-07-01 13:21:13,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:21:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:21:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:21:13,419 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:21:13,449 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:21:13,449 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:21:13,449 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:21:13,449 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:21:13,450 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:21:13,450 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:21:13,450 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:21:13,450 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:21:13,450 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 13:21:13,450 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:21:13,450 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:21:13,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:13,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:13,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:13,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:13,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:13,512 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:21:13,512 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 44 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:21:13,516 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:21:13,516 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:21:13,520 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:21:13,520 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tk~0=0, ULTIMATE.start_main_~k~0=1} Honda state: {ULTIMATE.start_main_~tk~0=0, ULTIMATE.start_main_~k~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:21:13,552 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:21:13,552 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:21:13,557 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:21:13,557 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=1, ULTIMATE.start_main_~bn~0=0} Honda state: {ULTIMATE.start_main_~j~0=1, ULTIMATE.start_main_~bn~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:21:13,592 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:21:13,592 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:21:13,628 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:21:13,628 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:21:14,045 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 13:21:14,047 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:21:14,047 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:21:14,047 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:21:14,048 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:21:14,048 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 13:21:14,048 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:21:14,048 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:21:14,048 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:21:14,048 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 13:21:14,048 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:21:14,048 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:21:14,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:14,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:14,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:14,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:14,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:21:14,110 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:21:14,110 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:21:14,115 INFO L120 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 [2020-07-01 13:21:14,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:21:14,117 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:21:14,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:21:14,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:21:14,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:21:14,118 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:21:14,118 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:21:14,120 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:21:14,153 INFO L120 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 [2020-07-01 13:21:14,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:21:14,155 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:21:14,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:21:14,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:21:14,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:21:14,156 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:21:14,156 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:21:14,158 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:21:14,192 INFO L120 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 [2020-07-01 13:21:14,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:21:14,194 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:21:14,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:21:14,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:21:14,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:21:14,195 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:21:14,195 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:21:14,198 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 13:21:14,202 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 13:21:14,202 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:21:14,205 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 13:21:14,205 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 13:21:14,205 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 13:21:14,205 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~an~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~an~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-07-01 13:21:14,234 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 13:21:14,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:21:14,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:21:14,253 INFO L264 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:21:14,254 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:21:14,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:21:14,277 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:21:14,278 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:21:14,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:21:14,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:21:14,293 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:21:14,293 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:21:14,319 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 13:21:14,319 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 [2020-07-01 13:21:14,320 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 17 states and 25 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-07-01 13:21:14,380 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 17 states and 25 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 41 states and 64 transitions. Complement of second has 8 states. [2020-07-01 13:21:14,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2020-07-01 13:21:14,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 13:21:14,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2020-07-01 13:21:14,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 2 letters. Loop has 3 letters. [2020-07-01 13:21:14,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:21:14,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-01 13:21:14,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:21:14,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 2 letters. Loop has 6 letters. [2020-07-01 13:21:14,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:21:14,383 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 64 transitions. [2020-07-01 13:21:14,384 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 13:21:14,385 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 0 states and 0 transitions. [2020-07-01 13:21:14,385 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 13:21:14,385 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 13:21:14,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 13:21:14,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 13:21:14,385 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 13:21:14,385 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 13:21:14,385 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 13:21:14,385 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2020-07-01 13:21:14,386 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 13:21:14,386 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 13:21:14,386 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 13:21:14,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:21:14 BasicIcfg [2020-07-01 13:21:14,392 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 13:21:14,393 INFO L168 Benchmark]: Toolchain (without parser) took 36032.16 ms. Allocated memory was 649.6 MB in the beginning and 760.7 MB in the end (delta: 111.1 MB). Free memory was 557.4 MB in the beginning and 696.5 MB in the end (delta: -139.0 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 13:21:14,394 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 649.6 MB. Free memory is still 577.9 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 13:21:14,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.00 ms. Allocated memory was 649.6 MB in the beginning and 660.6 MB in the end (delta: 11.0 MB). Free memory was 557.4 MB in the beginning and 623.0 MB in the end (delta: -65.6 MB). Peak memory consumption was 29.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:21:14,395 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.28 ms. Allocated memory is still 660.6 MB. Free memory was 623.0 MB in the beginning and 622.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 13:21:14,395 INFO L168 Benchmark]: Boogie Preprocessor took 20.44 ms. Allocated memory is still 660.6 MB. Free memory was 622.0 MB in the beginning and 619.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-07-01 13:21:14,396 INFO L168 Benchmark]: RCFGBuilder took 242.21 ms. Allocated memory is still 660.6 MB. Free memory was 619.8 MB in the beginning and 603.1 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 50.3 GB. [2020-07-01 13:21:14,396 INFO L168 Benchmark]: BlockEncodingV2 took 83.19 ms. Allocated memory is still 660.6 MB. Free memory was 603.1 MB in the beginning and 597.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 13:21:14,397 INFO L168 Benchmark]: TraceAbstraction took 150.47 ms. Allocated memory is still 660.6 MB. Free memory was 596.7 MB in the beginning and 588.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-07-01 13:21:14,397 INFO L168 Benchmark]: BuchiAutomizer took 35203.70 ms. Allocated memory was 660.6 MB in the beginning and 760.7 MB in the end (delta: 100.1 MB). Free memory was 588.0 MB in the beginning and 696.5 MB in the end (delta: -108.4 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 13:21:14,401 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 15 edges - StatisticsResult: Encoded RCFG 6 locations, 16 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 649.6 MB. Free memory is still 577.9 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 292.00 ms. Allocated memory was 649.6 MB in the beginning and 660.6 MB in the end (delta: 11.0 MB). Free memory was 557.4 MB in the beginning and 623.0 MB in the end (delta: -65.6 MB). Peak memory consumption was 29.3 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.28 ms. Allocated memory is still 660.6 MB. Free memory was 623.0 MB in the beginning and 622.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.44 ms. Allocated memory is still 660.6 MB. Free memory was 622.0 MB in the beginning and 619.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * RCFGBuilder took 242.21 ms. Allocated memory is still 660.6 MB. Free memory was 619.8 MB in the beginning and 603.1 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 83.19 ms. Allocated memory is still 660.6 MB. Free memory was 603.1 MB in the beginning and 597.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 150.47 ms. Allocated memory is still 660.6 MB. Free memory was 596.7 MB in the beginning and 588.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 35203.70 ms. Allocated memory was 660.6 MB in the beginning and 760.7 MB in the end (delta: 100.1 MB). Free memory was 588.0 MB in the beginning and 696.5 MB in the end (delta: -108.4 MB). There was no memory consumed. 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: 21]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 0 deterministic, 4 nondeterministic). One nondeterministic module has 2-nested ranking function (if -2 * tk > 0 then 1 else 0), (if -2 * tk > 0 then -2 * tk else 2 * bn + -2 * j + 1) and consists of 5 locations. One nondeterministic module has affine ranking function an + -1 * i and consists of 4 locations. One nondeterministic module has affine ranking function an + -1 * i and consists of 4 locations. One nondeterministic module has affine ranking function an + -1 * i and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.1s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 6.7s. Construction of modules took 0.3s. Büchi inclusion checks took 27.9s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 21 states and ocurred in iteration 1. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 28 SDtfs, 298 SDslu, 43 SDs, 0 SdLazy, 249 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT3 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax156 hnf100 lsp36 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq161 hnf93 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 15 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 4.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 13:20:35.058 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_RfRfSd/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 13:21:14.632 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check