/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 13:00:07,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 13:00:07,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 13:00:07,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 13:00:07,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 13:00:07,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 13:00:07,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 13:00:07,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 13:00:07,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 13:00:07,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 13:00:07,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 13:00:07,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 13:00:07,436 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 13:00:07,437 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 13:00:07,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 13:00:07,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 13:00:07,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 13:00:07,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 13:00:07,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 13:00:07,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 13:00:07,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 13:00:07,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 13:00:07,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 13:00:07,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 13:00:07,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 13:00:07,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 13:00:07,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 13:00:07,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 13:00:07,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 13:00:07,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 13:00:07,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 13:00:07,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 13:00:07,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 13:00:07,455 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 13:00:07,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 13:00:07,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 13:00:07,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 13:00:07,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 13:00:07,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 13:00:07,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 13:00:07,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 13:00:07,459 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 13:00:07,473 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 13:00:07,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 13:00:07,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 13:00:07,474 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 13:00:07,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 13:00:07,475 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 13:00:07,475 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 13:00:07,475 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 13:00:07,475 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 13:00:07,476 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 13:00:07,476 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 13:00:07,476 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 13:00:07,476 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 13:00:07,476 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 13:00:07,476 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:00:07,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 13:00:07,477 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 13:00:07,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 13:00:07,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 13:00:07,477 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 13:00:07,477 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 13:00:07,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 13:00:07,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 13:00:07,478 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 13:00:07,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 13:00:07,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 13:00:07,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 13:00:07,479 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 13:00:07,479 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 13:00:07,641 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 13:00:07,654 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 13:00:07,658 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 13:00:07,659 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 13:00:07,660 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 13:00:07,661 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 13:00:07,763 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_SggmTl/tmp/3c8ea0e025f045f7919e0be42bc65e6d/FLAG7ae1b8b02 [2020-07-01 13:00:08,097 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 13:00:08,098 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 13:00:08,105 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_SggmTl/tmp/3c8ea0e025f045f7919e0be42bc65e6d/FLAG7ae1b8b02 [2020-07-01 13:00:08,502 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_SggmTl/tmp/3c8ea0e025f045f7919e0be42bc65e6d [2020-07-01 13:00:08,513 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 13:00:08,515 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 13:00:08,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 13:00:08,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 13:00:08,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 13:00:08,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 01:00:08" (1/1) ... [2020-07-01 13:00:08,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57ee9100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:00:08, skipping insertion in model container [2020-07-01 13:00:08,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 01:00:08" (1/1) ... [2020-07-01 13:00:08,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 13:00:08,549 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 13:00:08,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 13:00:08,775 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 13:00:08,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 13:00:08,806 INFO L208 MainTranslator]: Completed translation [2020-07-01 13:00:08,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:00:08 WrapperNode [2020-07-01 13:00:08,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 13:00:08,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 13:00:08,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 13:00:08,808 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 13:00:08,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:00:08" (1/1) ... [2020-07-01 13:00:08,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:00:08" (1/1) ... [2020-07-01 13:00:08,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 13:00:08,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 13:00:08,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 13:00:08,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 13:00:08,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:00:08" (1/1) ... [2020-07-01 13:00:08,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:00:08" (1/1) ... [2020-07-01 13:00:08,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:00:08" (1/1) ... [2020-07-01 13:00:08,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:00:08" (1/1) ... [2020-07-01 13:00:08,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:00:08" (1/1) ... [2020-07-01 13:00:08,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:00:08" (1/1) ... [2020-07-01 13:00:08,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:00:08" (1/1) ... [2020-07-01 13:00:08,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 13:00:08,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 13:00:08,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 13:00:08,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 13:00:08,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:00:08" (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 13:00:08,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 13:00:08,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 13:00:09,098 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 13:00:09,099 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-01 13:00:09,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:00:09 BoogieIcfgContainer [2020-07-01 13:00:09,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 13:00:09,103 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 13:00:09,103 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 13:00:09,105 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 13:00:09,106 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:00:09" (1/1) ... [2020-07-01 13:00:09,119 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-07-01 13:00:09,121 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 13:00:09,121 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 13:00:09,122 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 13:00:09,122 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 13:00:09,124 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 13:00:09,125 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 13:00:09,125 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 13:00:09,138 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 13:00:09,145 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 13:00:09,151 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 13:00:09,153 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 13:00:09,168 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-07-01 13:00:09,170 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 13:00:09,171 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 13:00:09,172 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 13:00:09,172 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 13:00:09,172 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 13:00:09,172 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 13:00:09,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:00:09 BasicIcfg [2020-07-01 13:00:09,173 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 13:00:09,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 13:00:09,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 13:00:09,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 13:00:09,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 01:00:08" (1/4) ... [2020-07-01 13:00:09,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4135b39c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:00:09, skipping insertion in model container [2020-07-01 13:00:09,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:00:08" (2/4) ... [2020-07-01 13:00:09,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4135b39c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:00:09, skipping insertion in model container [2020-07-01 13:00:09,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:00:09" (3/4) ... [2020-07-01 13:00:09,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4135b39c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:00:09, skipping insertion in model container [2020-07-01 13:00:09,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:00:09" (4/4) ... [2020-07-01 13:00:09,182 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 13:00:09,192 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 13:00:09,199 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 13:00:09,213 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 13:00:09,235 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 13:00:09,236 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 13:00:09,236 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 13:00:09,236 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 13:00:09,236 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 13:00:09,236 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 13:00:09,237 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 13:00:09,237 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 13:00:09,250 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 13:00:09,255 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 13:00:09,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 13:00:09,312 INFO L271 CegarLoopResult]: At program point L19-2(lines 19 25) the Hoare annotation is: true [2020-07-01 13:00:09,312 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 13:00:09,313 INFO L271 CegarLoopResult]: At program point L21-2(lines 21 23) the Hoare annotation is: true [2020-07-01 13:00:09,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:00:09 BasicIcfg [2020-07-01 13:00:09,321 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 13:00:09,322 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 13:00:09,322 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 13:00:09,326 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 13:00:09,327 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:00:09,327 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 01:00:08" (1/5) ... [2020-07-01 13:00:09,327 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44a86f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 01:00:09, skipping insertion in model container [2020-07-01 13:00:09,328 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:00:09,328 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:00:08" (2/5) ... [2020-07-01 13:00:09,328 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44a86f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 01:00:09, skipping insertion in model container [2020-07-01 13:00:09,328 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:00:09,328 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:00:09" (3/5) ... [2020-07-01 13:00:09,329 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44a86f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:00:09, skipping insertion in model container [2020-07-01 13:00:09,329 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:00:09,329 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:00:09" (4/5) ... [2020-07-01 13:00:09,329 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44a86f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:00:09, skipping insertion in model container [2020-07-01 13:00:09,330 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:00:09,330 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:00:09" (5/5) ... [2020-07-01 13:00:09,331 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 13:00:09,360 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 13:00:09,360 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 13:00:09,361 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 13:00:09,361 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 13:00:09,361 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 13:00:09,361 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 13:00:09,361 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 13:00:09,361 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 13:00:09,364 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 13:00:09,381 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 13:00:09,382 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:00:09,382 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:00:09,387 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 13:00:09,387 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 13:00:09,387 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 13:00:09,388 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 13:00:09,388 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 13:00:09,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:00:09,388 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:00:09,389 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 13:00:09,389 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 13:00:09,394 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [32] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~n~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0] 4#L19-2true [2020-07-01 13:00:09,394 INFO L796 eck$LassoCheckResult]: Loop: 4#L19-2true [36] L19-2-->L21-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_11 v_ULTIMATE.start_main_~n~0_7) (= v_ULTIMATE.start_main_~j~0_9 0)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 5#L21-2true [45] L21-2-->L19-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_14 v_ULTIMATE.start_main_~j~0_10) (= v_ULTIMATE.start_main_~i~0_13 (+ v_ULTIMATE.start_main_~i~0_14 1))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 4#L19-2true [2020-07-01 13:00:09,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:00:09,401 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times [2020-07-01 13:00:09,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:00:09,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243964978] [2020-07-01 13:00:09,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:00:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:00:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:00:09,481 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:00:09,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:00:09,482 INFO L82 PathProgramCache]: Analyzing trace with hash 2122, now seen corresponding path program 1 times [2020-07-01 13:00:09,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:00:09,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686608091] [2020-07-01 13:00:09,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:00:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:00:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:00:09,499 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:00:09,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:00:09,501 INFO L82 PathProgramCache]: Analyzing trace with hash 61704, now seen corresponding path program 1 times [2020-07-01 13:00:09,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:00:09,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606853527] [2020-07-01 13:00:09,502 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:00:09,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:00:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:00:09,515 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:00:09,563 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:00:09,564 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:00:09,564 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:00:09,565 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:00:09,565 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:00:09,565 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:00:09,565 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:00:09,565 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:00:09,566 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 13:00:09,566 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:00:09,566 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:00:09,586 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 13:00:09,596 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 13:00:09,602 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 13:00:09,726 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:00:09,727 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 13:00:09,786 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:00:09,786 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:00:09,797 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:00:09,797 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 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 13:00:09,831 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:00:09,831 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:00:09,836 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:00:09,836 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 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 13:00:09,868 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:00:09,869 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 13:00:09,905 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:00:09,905 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:00:10,035 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 13:00:10,037 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:00:10,037 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:00:10,038 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:00:10,038 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:00:10,038 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 13:00:10,038 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:00:10,038 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:00:10,038 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:00:10,038 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 13:00:10,039 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:00:10,039 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:00:10,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:00:10,045 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 13:00:10,049 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 13:00:10,127 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:00:10,132 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:00:10,137 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 13:00:10,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:00:10,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:00:10,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:00:10,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:00:10,146 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:00:10,147 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:00:10,152 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 7 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:00:10,185 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 13:00:10,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:00:10,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:00:10,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:00:10,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:00:10,191 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:00:10,191 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:00:10,196 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 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 13:00:10,228 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 13:00:10,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:00:10,231 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:00:10,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:00:10,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:00:10,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:00:10,234 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:00:10,234 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:00:10,238 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 13:00:10,244 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 13:00:10,244 INFO L444 ModelExtractionUtils]: 2 out of 5 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 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 13:00:10,250 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 13:00:10,251 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 13:00:10,251 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 13:00:10,252 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-07-01 13:00:10,285 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 13:00:10,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:00:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:00:10,322 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:00:10,323 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:00:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:00:10,335 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 13:00:10,336 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:00:10,353 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 13:00:10,378 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 13:00:10,384 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 13:00:10,385 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 13:00:10,440 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 10 states and 15 transitions. Complement of second has 7 states. [2020-07-01 13:00:10,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2020-07-01 13:00:10,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 13:00:10,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2020-07-01 13:00:10,445 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 13:00:10,446 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:00:10,446 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 13:00:10,447 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:00:10,447 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 13:00:10,447 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:00:10,454 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 15 transitions. [2020-07-01 13:00:10,455 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 13:00:10,459 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 15 transitions. [2020-07-01 13:00:10,460 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-07-01 13:00:10,461 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-07-01 13:00:10,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 15 transitions. [2020-07-01 13:00:10,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 13:00:10,462 INFO L688 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2020-07-01 13:00:10,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 15 transitions. [2020-07-01 13:00:10,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2020-07-01 13:00:10,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-01 13:00:10,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 14 transitions. [2020-07-01 13:00:10,491 INFO L711 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions. [2020-07-01 13:00:10,491 INFO L591 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions. [2020-07-01 13:00:10,491 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 13:00:10,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 14 transitions. [2020-07-01 13:00:10,492 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 13:00:10,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:00:10,492 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:00:10,492 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 13:00:10,492 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 13:00:10,493 INFO L794 eck$LassoCheckResult]: Stem: 54#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~n~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0] 55#L19-2 [36] L19-2-->L21-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_11 v_ULTIMATE.start_main_~n~0_7) (= v_ULTIMATE.start_main_~j~0_9 0)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 57#L21-2 [2020-07-01 13:00:10,493 INFO L796 eck$LassoCheckResult]: Loop: 57#L21-2 [40] L21-2-->L21-2: Formula: (and (<= v_ULTIMATE.start_main_~j~0_8 v_ULTIMATE.start_main_~i~0_7) (= v_ULTIMATE.start_main_~j~0_7 (+ v_ULTIMATE.start_main_~j~0_8 1))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 60#L21-2 [45] L21-2-->L19-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_14 v_ULTIMATE.start_main_~j~0_10) (= v_ULTIMATE.start_main_~i~0_13 (+ v_ULTIMATE.start_main_~i~0_14 1))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 56#L19-2 [36] L19-2-->L21-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_11 v_ULTIMATE.start_main_~n~0_7) (= v_ULTIMATE.start_main_~j~0_9 0)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 57#L21-2 [2020-07-01 13:00:10,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:00:10,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1989, now seen corresponding path program 1 times [2020-07-01 13:00:10,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:00:10,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140947979] [2020-07-01 13:00:10,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:00:10,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:00:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:00:10,503 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:00:10,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:00:10,504 INFO L82 PathProgramCache]: Analyzing trace with hash 69662, now seen corresponding path program 1 times [2020-07-01 13:00:10,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:00:10,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237942242] [2020-07-01 13:00:10,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:00:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:00:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:00:10,516 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:00:10,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:00:10,516 INFO L82 PathProgramCache]: Analyzing trace with hash 59294170, now seen corresponding path program 1 times [2020-07-01 13:00:10,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:00:10,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794608997] [2020-07-01 13:00:10,517 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:00:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:00:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:00:10,531 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:00:10,563 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:00:10,563 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:00:10,563 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:00:10,563 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:00:10,563 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:00:10,563 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:00:10,563 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:00:10,564 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:00:10,564 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 13:00:10,564 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:00:10,564 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:00:10,566 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 13:00:10,569 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 13:00:10,573 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 13:00:10,687 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:00:10,687 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:00:10,693 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:00:10,693 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:00:10,698 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:00:10,698 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:00:10,734 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:00:10,734 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:00:10,739 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:00:10,739 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:00:10,775 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:00:10,776 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:00:10,816 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:00:10,816 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:00:11,009 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 13:00:11,012 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:00:11,012 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:00:11,012 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:00:11,012 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:00:11,013 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 13:00:11,013 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:00:11,013 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:00:11,013 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:00:11,013 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 13:00:11,013 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:00:11,013 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:00:11,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:00:11,020 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 13:00:11,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:00:11,101 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:00:11,102 INFO L489 LassoAnalysis]: Using template 'affine'. 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 13:00:11,108 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 13:00:11,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:00:11,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:00:11,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:00:11,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:00:11,115 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:00:11,115 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:00:11,120 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 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 13:00:11,155 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 13:00:11,157 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:00:11,157 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:00:11,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:00:11,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:00:11,161 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:00:11,161 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:00:11,166 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 13:00:11,201 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 13:00:11,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:00:11,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:00:11,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:00:11,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:00:11,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:00:11,206 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:00:11,206 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:00:11,210 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 13:00:11,214 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 13:00:11,214 INFO L444 ModelExtractionUtils]: 2 out of 5 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 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 13:00:11,221 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 13:00:11,221 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 13:00:11,221 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 13:00:11,221 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-07-01 13:00:11,253 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 13:00:11,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:00:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:00:11,276 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:00:11,277 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:00:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:00:11,284 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:00:11,284 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:00:11,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-01 13:00:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:00:11,307 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:00:11,308 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:00:11,337 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 13:00:11,338 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 13:00:11,338 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 9 states and 14 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-07-01 13:00:11,379 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 9 states and 14 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 18 states and 30 transitions. Complement of second has 7 states. [2020-07-01 13:00:11,380 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 13:00:11,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 13:00:11,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-07-01 13:00:11,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 3 letters. [2020-07-01 13:00:11,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:00:11,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-01 13:00:11,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:00:11,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 6 letters. [2020-07-01 13:00:11,384 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:00:11,385 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 30 transitions. [2020-07-01 13:00:11,386 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 13:00:11,388 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 16 states and 25 transitions. [2020-07-01 13:00:11,389 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-07-01 13:00:11,389 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-07-01 13:00:11,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 25 transitions. [2020-07-01 13:00:11,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 13:00:11,389 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 25 transitions. [2020-07-01 13:00:11,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 25 transitions. [2020-07-01 13:00:11,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 12. [2020-07-01 13:00:11,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-01 13:00:11,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 20 transitions. [2020-07-01 13:00:11,392 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 20 transitions. [2020-07-01 13:00:11,392 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 20 transitions. [2020-07-01 13:00:11,392 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 13:00:11,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 20 transitions. [2020-07-01 13:00:11,393 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 13:00:11,393 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:00:11,393 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:00:11,394 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 13:00:11,394 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 13:00:11,394 INFO L794 eck$LassoCheckResult]: Stem: 131#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~n~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_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0] 132#L19-2 [36] L19-2-->L21-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_11 v_ULTIMATE.start_main_~n~0_7) (= v_ULTIMATE.start_main_~j~0_9 0)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 133#L21-2 [40] L21-2-->L21-2: Formula: (and (<= v_ULTIMATE.start_main_~j~0_8 v_ULTIMATE.start_main_~i~0_7) (= v_ULTIMATE.start_main_~j~0_7 (+ v_ULTIMATE.start_main_~j~0_8 1))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 136#L21-2 [2020-07-01 13:00:11,394 INFO L796 eck$LassoCheckResult]: Loop: 136#L21-2 [40] L21-2-->L21-2: Formula: (and (<= v_ULTIMATE.start_main_~j~0_8 v_ULTIMATE.start_main_~i~0_7) (= v_ULTIMATE.start_main_~j~0_7 (+ v_ULTIMATE.start_main_~j~0_8 1))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 136#L21-2 [2020-07-01 13:00:11,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:00:11,395 INFO L82 PathProgramCache]: Analyzing trace with hash 61699, now seen corresponding path program 1 times [2020-07-01 13:00:11,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:00:11,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226850745] [2020-07-01 13:00:11,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:00:11,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:00:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:00:11,405 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:00:11,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:00:11,406 INFO L82 PathProgramCache]: Analyzing trace with hash 71, now seen corresponding path program 1 times [2020-07-01 13:00:11,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:00:11,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484481736] [2020-07-01 13:00:11,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:00:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:00:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:00:11,412 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:00:11,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:00:11,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1912709, now seen corresponding path program 2 times [2020-07-01 13:00:11,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:00:11,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429316757] [2020-07-01 13:00:11,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:00:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:00:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:00:11,424 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:00:11,435 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:00:11,435 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:00:11,435 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:00:11,435 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:00:11,435 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:00:11,436 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:00:11,436 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:00:11,436 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:00:11,436 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 13:00:11,436 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:00:11,436 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:00:11,437 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 13:00:11,441 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 13:00:11,447 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 13:00:11,486 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:00:11,486 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:00:11,491 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:00:11,491 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:00:11,496 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:00:11,496 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 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 13:00:11,529 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:00:11,529 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 13:00:11,566 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:00:11,566 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:00:11,796 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 13:00:11,798 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:00:11,798 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:00:11,799 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:00:11,799 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:00:11,799 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 13:00:11,799 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:00:11,799 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:00:11,799 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:00:11,799 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 13:00:11,799 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:00:11,800 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:00:11,801 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 13:00:11,807 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 13:00:11,810 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 13:00:11,848 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:00:11,848 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:00:11,853 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 13:00:11,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:00:11,855 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:00:11,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:00:11,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:00:11,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:00:11,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:00:11,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:00:11,860 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 13:00:11,863 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 13:00:11,863 INFO L444 ModelExtractionUtils]: 0 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 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:00:11,868 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 13:00:11,868 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 13:00:11,868 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 13:00:11,868 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~j~0 + 2*ULTIMATE.start_main_~i~0 + 1 Supporting invariants [] [2020-07-01 13:00:11,898 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 13:00:11,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:00:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:00:11,916 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:00:11,917 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:00:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:00:11,921 WARN L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:00:11,921 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:00:11,922 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 13:00:11,922 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 13:00:11,922 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-01 13:00:11,922 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 12 states and 20 transitions. cyclomatic complexity: 11 Second operand 2 states. [2020-07-01 13:00:11,930 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 12 states and 20 transitions. cyclomatic complexity: 11. Second operand 2 states. Result 14 states and 22 transitions. Complement of second has 2 states. [2020-07-01 13:00:11,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-07-01 13:00:11,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 13:00:11,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. [2020-07-01 13:00:11,931 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 13:00:11,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:00:11,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2020-07-01 13:00:11,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:00:11,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 13:00:11,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:00:11,933 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 22 transitions. [2020-07-01 13:00:11,934 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 13:00:11,934 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2020-07-01 13:00:11,934 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 13:00:11,935 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 13:00:11,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 13:00:11,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 13:00:11,935 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 13:00:11,935 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 13:00:11,935 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 13:00:11,935 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 13:00:11,935 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 13:00:11,935 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 13:00:11,936 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 13:00:11,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:00:11 BasicIcfg [2020-07-01 13:00:11,942 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 13:00:11,944 INFO L168 Benchmark]: Toolchain (without parser) took 3428.83 ms. Allocated memory was 514.9 MB in the beginning and 588.3 MB in the end (delta: 73.4 MB). Free memory was 438.6 MB in the beginning and 435.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 76.7 MB. Max. memory is 50.3 GB. [2020-07-01 13:00:11,945 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 13:00:11,945 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.21 ms. Allocated memory was 514.9 MB in the beginning and 562.0 MB in the end (delta: 47.2 MB). Free memory was 437.9 MB in the beginning and 530.1 MB in the end (delta: -92.1 MB). Peak memory consumption was 27.9 MB. Max. memory is 50.3 GB. [2020-07-01 13:00:11,946 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.98 ms. Allocated memory is still 562.0 MB. Free memory was 530.1 MB in the beginning and 528.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:00:11,946 INFO L168 Benchmark]: Boogie Preprocessor took 20.60 ms. Allocated memory is still 562.0 MB. Free memory was 528.7 MB in the beginning and 527.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:00:11,947 INFO L168 Benchmark]: RCFGBuilder took 238.69 ms. Allocated memory is still 562.0 MB. Free memory was 527.4 MB in the beginning and 514.9 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 50.3 GB. [2020-07-01 13:00:11,947 INFO L168 Benchmark]: BlockEncodingV2 took 70.18 ms. Allocated memory is still 562.0 MB. Free memory was 514.9 MB in the beginning and 510.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 50.3 GB. [2020-07-01 13:00:11,948 INFO L168 Benchmark]: TraceAbstraction took 147.29 ms. Allocated memory is still 562.0 MB. Free memory was 509.5 MB in the beginning and 500.6 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 50.3 GB. [2020-07-01 13:00:11,949 INFO L168 Benchmark]: BuchiAutomizer took 2619.50 ms. Allocated memory was 562.0 MB in the beginning and 588.3 MB in the end (delta: 26.2 MB). Free memory was 500.6 MB in the beginning and 435.3 MB in the end (delta: 65.3 MB). Peak memory consumption was 91.5 MB. Max. memory is 50.3 GB. [2020-07-01 13:00:11,952 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 291.21 ms. Allocated memory was 514.9 MB in the beginning and 562.0 MB in the end (delta: 47.2 MB). Free memory was 437.9 MB in the beginning and 530.1 MB in the end (delta: -92.1 MB). Peak memory consumption was 27.9 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.98 ms. Allocated memory is still 562.0 MB. Free memory was 530.1 MB in the beginning and 528.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.60 ms. Allocated memory is still 562.0 MB. Free memory was 528.7 MB in the beginning and 527.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 238.69 ms. Allocated memory is still 562.0 MB. Free memory was 527.4 MB in the beginning and 514.9 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 70.18 ms. Allocated memory is still 562.0 MB. Free memory was 514.9 MB in the beginning and 510.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 50.3 GB. * TraceAbstraction took 147.29 ms. Allocated memory is still 562.0 MB. Free memory was 509.5 MB in the beginning and 500.6 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2619.50 ms. Allocated memory was 562.0 MB in the beginning and 588.3 MB in the end (delta: 26.2 MB). Free memory was 500.6 MB in the beginning and 435.3 MB in the end (delta: 65.3 MB). Peak memory consumption was 91.5 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 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=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function -1 * i and consists of 5 locations. One nondeterministic module has affine ranking function n + -1 * i and consists of 4 locations. One nondeterministic module has affine ranking function -2 * j + 2 * i + 1 and consists of 2 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 12 SDtfs, 17 SDslu, 0 SDs, 0 SdLazy, 23 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax184 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf93 smp100 dnf100 smp100 tf109 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 13:00:05.245 ----------------------------------------------- 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_SggmTl/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 13:00:12.586 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check