/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:17:51,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:17:51,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:17:51,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:17:51,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:17:51,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:17:51,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:17:51,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:17:51,646 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:17:51,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:17:51,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:17:51,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:17:51,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:17:51,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:17:51,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:17:51,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:17:51,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:17:51,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:17:51,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:17:51,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:17:51,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:17:51,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:17:51,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:17:51,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:17:51,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:17:51,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:17:51,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:17:51,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:17:51,664 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:17:51,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:17:51,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:17:51,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:17:51,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:17:51,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:17:51,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:17:51,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:17:51,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:17:51,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:17:51,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:17:51,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:17:51,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:17:51,671 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 11:17:51,686 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:17:51,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:17:51,687 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:17:51,687 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:17:51,687 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:17:51,688 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:17:51,688 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:17:51,688 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:17:51,688 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:17:51,688 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:17:51,688 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:17:51,689 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:17:51,689 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:17:51,689 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:17:51,689 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:17:51,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:17:51,690 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:17:51,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:17:51,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:17:51,690 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:17:51,690 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:17:51,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:17:51,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:17:51,691 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:17:51,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:17:51,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:17:51,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:17:51,692 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:17:51,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:17:51,856 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:17:51,870 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:17:51,873 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:17:51,874 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:17:51,875 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:17:51,876 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:17:51,940 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_iJLZ5K/tmp/3ba972d363b148448a9e9b42a08b65af/FLAG8f621d975 [2020-07-01 11:17:52,266 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:17:52,266 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:17:52,273 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_iJLZ5K/tmp/3ba972d363b148448a9e9b42a08b65af/FLAG8f621d975 [2020-07-01 11:17:52,689 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_iJLZ5K/tmp/3ba972d363b148448a9e9b42a08b65af [2020-07-01 11:17:52,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:17:52,702 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:17:52,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:17:52,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:17:52,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:17:52,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:17:52" (1/1) ... [2020-07-01 11:17:52,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3425f847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:52, skipping insertion in model container [2020-07-01 11:17:52,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:17:52" (1/1) ... [2020-07-01 11:17:52,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:17:52,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:17:52,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:17:52,976 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:17:52,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:17:53,008 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:17:53,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53 WrapperNode [2020-07-01 11:17:53,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:17:53,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:17:53,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:17:53,010 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:17:53,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (1/1) ... [2020-07-01 11:17:53,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (1/1) ... [2020-07-01 11:17:53,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:17:53,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:17:53,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:17:53,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:17:53,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (1/1) ... [2020-07-01 11:17:53,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (1/1) ... [2020-07-01 11:17:53,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (1/1) ... [2020-07-01 11:17:53,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (1/1) ... [2020-07-01 11:17:53,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (1/1) ... [2020-07-01 11:17:53,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (1/1) ... [2020-07-01 11:17:53,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (1/1) ... [2020-07-01 11:17:53,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:17:53,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:17:53,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:17:53,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:17:53,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:17:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:17:53,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:17:53,305 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:17:53,306 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 11:17:53,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:17:53 BoogieIcfgContainer [2020-07-01 11:17:53,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:17:53,310 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:17:53,310 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:17:53,312 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:17:53,313 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:17:53" (1/1) ... [2020-07-01 11:17:53,325 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 13 edges [2020-07-01 11:17:53,327 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:17:53,327 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:17:53,328 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:17:53,328 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:17:53,330 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:17:53,331 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:17:53,331 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:17:53,346 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:17:53,362 INFO L200 BlockEncoder]: SBE split 2 edges [2020-07-01 11:17:53,367 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:17:53,369 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:17:53,378 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 11:17:53,379 INFO L70 RemoveSinkStates]: Removed 8 edges and 3 locations by removing sink states [2020-07-01 11:17:53,381 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:17:53,381 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:17:53,393 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 11:17:53,393 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:17:53,394 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:17:53,394 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:17:53,394 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:17:53,394 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:17:53,395 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges [2020-07-01 11:17:53,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:17:53 BasicIcfg [2020-07-01 11:17:53,395 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:17:53,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:17:53,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:17:53,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:17:53,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:17:52" (1/4) ... [2020-07-01 11:17:53,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668f3593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:17:53, skipping insertion in model container [2020-07-01 11:17:53,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (2/4) ... [2020-07-01 11:17:53,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668f3593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:17:53, skipping insertion in model container [2020-07-01 11:17:53,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:17:53" (3/4) ... [2020-07-01 11:17:53,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668f3593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:17:53, skipping insertion in model container [2020-07-01 11:17:53,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:17:53" (4/4) ... [2020-07-01 11:17:53,406 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:17:53,416 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:17:53,423 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:17:53,437 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:17:53,460 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:17:53,460 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:17:53,460 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:17:53,460 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:17:53,460 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:17:53,461 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:17:53,461 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:17:53,461 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:17:53,475 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 11:17:53,480 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:17:53,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 11:17:53,535 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:17:53,535 INFO L268 CegarLoopResult]: For program point L24(lines 24 29) no Hoare annotation was computed. [2020-07-01 11:17:53,535 INFO L271 CegarLoopResult]: At program point L24-2(lines 23 30) the Hoare annotation is: true [2020-07-01 11:17:53,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:17:53 BasicIcfg [2020-07-01 11:17:53,544 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:17:53,544 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:17:53,544 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:17:53,548 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:17:53,548 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:17:53,549 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:17:52" (1/5) ... [2020-07-01 11:17:53,549 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4000629d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:17:53, skipping insertion in model container [2020-07-01 11:17:53,550 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:17:53,550 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (2/5) ... [2020-07-01 11:17:53,550 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4000629d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:17:53, skipping insertion in model container [2020-07-01 11:17:53,550 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:17:53,550 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:17:53" (3/5) ... [2020-07-01 11:17:53,551 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4000629d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:17:53, skipping insertion in model container [2020-07-01 11:17:53,551 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:17:53,551 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:17:53" (4/5) ... [2020-07-01 11:17:53,551 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4000629d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:17:53, skipping insertion in model container [2020-07-01 11:17:53,552 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:17:53,552 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:17:53" (5/5) ... [2020-07-01 11:17:53,553 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:17:53,580 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:17:53,580 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:17:53,580 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:17:53,580 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:17:53,581 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:17:53,581 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:17:53,581 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:17:53,581 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:17:53,584 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:17:53,601 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:17:53,601 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:17:53,601 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:17:53,608 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:17:53,608 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:17:53,608 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:17:53,608 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:17:53,609 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:17:53,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:17:53,609 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:17:53,610 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:17:53,610 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:17:53,615 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [60] ULTIMATE.startENTRY-->L24-2: Formula: (and (<= 0 (+ v_ULTIMATE.start_main_~x~0_15 v_ULTIMATE.start_main_~y~0_11)) (< v_ULTIMATE.start_main_~y~0_11 536870912) (< v_ULTIMATE.start_main_~N~0_9 536870912) (< v_ULTIMATE.start_main_~x~0_15 536870912) (<= 0 (+ v_ULTIMATE.start_main_~x~0_15 1073741824))) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_8|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_15} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~N~0, ULTIMATE.start_main_~x~0] 4#L24-2true [2020-07-01 11:17:53,615 INFO L796 eck$LassoCheckResult]: Loop: 4#L24-2true [42] L24-2-->L24: Formula: (<= v_ULTIMATE.start_main_~x~0_8 v_ULTIMATE.start_main_~N~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_7} AuxVars[] AssignedVars[] 5#L24true [56] L24-->L24-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~y~0_8 1)) (= v_ULTIMATE.start_main_~x~0_9 (+ (* v_ULTIMATE.start_main_~x~0_10 2) v_ULTIMATE.start_main_~y~0_8)) (< 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 4#L24-2true [2020-07-01 11:17:53,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:17:53,621 INFO L82 PathProgramCache]: Analyzing trace with hash 91, now seen corresponding path program 1 times [2020-07-01 11:17:53,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:17:53,631 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602346860] [2020-07-01 11:17:53,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:17:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:17:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:17:53,705 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:17:53,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:17:53,706 INFO L82 PathProgramCache]: Analyzing trace with hash 2319, now seen corresponding path program 1 times [2020-07-01 11:17:53,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:17:53,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23169408] [2020-07-01 11:17:53,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:17:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:17:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:17:53,719 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:17:53,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:17:53,721 INFO L82 PathProgramCache]: Analyzing trace with hash 88809, now seen corresponding path program 1 times [2020-07-01 11:17:53,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:17:53,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619104398] [2020-07-01 11:17:53,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:17:53,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:17:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:17:53,736 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:17:53,784 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:17:53,785 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:17:53,785 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:17:53,785 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:17:53,785 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:17:53,785 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:17:53,786 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:17:53,786 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:17:53,786 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:17:53,786 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:17:53,786 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:17:53,805 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 11:17:53,814 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 11:17:53,907 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:17:53,907 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:17:53,915 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:17:53,915 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:17:53,926 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:17:53,926 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=1} Honda state: {ULTIMATE.start_main_#t~nondet3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:17:53,961 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:17:53,961 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:17:54,000 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:17:54,000 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:17:54,041 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:17:54,041 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=-7, ULTIMATE.start_main_~N~0=6, ULTIMATE.start_main_~x~0=6} Honda state: {ULTIMATE.start_main_~y~0=-7, ULTIMATE.start_main_~N~0=6, ULTIMATE.start_main_~x~0=6} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=-3, ULTIMATE.start_main_~N~0=4, ULTIMATE.start_main_~x~0=3}, {ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~N~0=1, ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~y~0=5, ULTIMATE.start_main_~N~0=-5, ULTIMATE.start_main_~x~0=-5}] Lambdas: [1, 6, 1] Nus: [0, 1] [2020-07-01 11:17:54,119 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:17:54,119 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:17:54,119 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:17:54,119 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:17:54,119 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:17:54,119 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:17:54,120 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:17:54,120 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:17:54,120 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-07-01 11:17:54,120 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:17:54,120 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:17:54,123 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 11:17:54,127 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 11:17:54,130 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 11:17:54,134 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 11:17:54,140 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 11:17:54,148 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 11:17:54,235 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:17:54,235 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:17:54,313 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:17:54,314 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:17:54,318 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:17:54,318 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:17:54,351 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:17:54,351 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:17:54,355 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:17:54,355 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:17:54,389 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:17:54,389 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:17:54,393 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:17:54,393 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:17:54,426 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:17:54,427 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:17:54,430 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:17:54,430 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:17:54,464 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:17:54,464 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:17:54,468 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:17:54,468 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=1} Honda state: {ULTIMATE.start_main_#t~nondet3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:17:54,502 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:17:54,502 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:17:54,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:17:54,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:18:06,668 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2020-07-01 11:18:06,682 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:18:06,683 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:18:06,683 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:18:06,683 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:18:06,683 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:18:06,683 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:18:06,683 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:18:06,683 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:18:06,684 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-07-01 11:18:06,684 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:18:06,684 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:18:06,686 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 11:18:06,691 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 11:18:06,693 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 11:18:06,696 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 11:18:06,698 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 11:18:06,715 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 11:18:06,782 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:18:06,789 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:18:06,795 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 11:18:06,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:18:06,798 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:18:06,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:18:06,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:18:06,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:18:06,802 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:18:06,803 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:18:06,806 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:18:06,845 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 11:18:06,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:18:06,848 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:18:06,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:18:06,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:18:06,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:18:06,850 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:18:06,850 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:18:06,852 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/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 11:18:06,886 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 11:18:06,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:18:06,888 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:18:06,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:18:06,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:18:06,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:18:06,890 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:18:06,890 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:18:06,892 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/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 11:18:06,927 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 11:18:06,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:18:06,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:18:06,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:18:06,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:18:06,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:18:06,931 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:18:06,931 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:18:06,934 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/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 11:18:06,968 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 11:18:06,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:18:06,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:18:06,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:18:06,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:18:06,982 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:18:06,983 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:18:06,995 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/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 11:18:07,030 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 11:18:07,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:18:07,032 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:18:07,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:18:07,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:18:07,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:18:07,034 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:18:07,034 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:18:07,040 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 11:18:07,069 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:18:07,075 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 11:18:07,078 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:18:07,078 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:18:07,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:18:07,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:18:07,078 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:18:07,080 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 11:18:07,080 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:18:07,082 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:18:07,124 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:18:07,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:18:07,127 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:18:07,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:18:07,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:18:07,128 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:18:07,129 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 11:18:07,129 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:18:07,131 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:18:07,167 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 11:18:07,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:18:07,169 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:18:07,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:18:07,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:18:07,170 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:18:07,171 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 11:18:07,171 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:18:07,173 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/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 11:18:07,210 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 11:18:07,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:18:07,212 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:18:07,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:18:07,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:18:07,213 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:18:07,214 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 11:18:07,214 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:18:07,220 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/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 11:18:07,255 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 11:18:07,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:18:07,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:18:07,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:18:07,258 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:18:07,269 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-07-01 11:18:07,269 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-07-01 11:18:07,293 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:18:07,328 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-07-01 11:18:07,328 INFO L444 ModelExtractionUtils]: 6 out of 21 variables were initially zero. Simplification set additionally 6 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-01 11:18:07,339 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:18:07,345 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 3. [2020-07-01 11:18:07,346 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:18:07,346 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~y~0 - 2*ULTIMATE.start_main_~x~0 + 1 f1 = -2*ULTIMATE.start_main_~x~0 + 2*ULTIMATE.start_main_~N~0 + 1 Supporting invariants [1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 >= 0] [2020-07-01 11:18:07,385 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-01 11:18:12,826 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (* (- 2) c_ULTIMATE.start_main_~x~0))) (let ((.cse1 (+ (* (- 2) c_ULTIMATE.start_main_~y~0) .cse2 1))) (let ((.cse0 (> .cse1 0))) (and (>= c_oldRank0 (ite .cse0 1 0)) (>= c_oldRank1 (ite .cse0 .cse1 (+ .cse2 (* 2 c_ULTIMATE.start_main_~N~0) 1))) (>= (+ c_ULTIMATE.start_main_~y~0 c_ULTIMATE.start_main_~x~0) 0))))) is different from false [2020-07-01 11:18:12,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:18:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:18:12,864 INFO L264 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-01 11:18:12,865 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:18:12,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:18:12,880 WARN L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:18:12,880 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:18:12,958 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 11:18:13,150 INFO L98 LoopCannibalizer]: 8 predicates before loop cannibalization 8 predicates after loop cannibalization [2020-07-01 11:18:13,155 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 8 loop predicates [2020-07-01 11:18:13,157 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 11:18:13,247 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 5 states and 9 transitions. Complement of second has 2 states. [2020-07-01 11:18:13,248 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 11:18:13,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:18:13,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. [2020-07-01 11:18:13,251 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:18:13,253 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:18:13,253 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-07-01 11:18:13,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:18:13,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:18:13,316 INFO L264 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-01 11:18:13,316 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:18:13,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:18:13,328 WARN L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:18:13,328 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:18:13,411 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 11:18:13,411 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:18:13,412 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 11:18:13,571 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 7 states and 12 transitions. Complement of second has 4 states. [2020-07-01 11:18:13,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:18:13,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:18:13,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-07-01 11:18:13,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:18:13,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:18:13,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:18:13,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:18:13,574 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:18:13,574 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:18:13,581 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 12 transitions. [2020-07-01 11:18:13,582 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:18:13,585 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 12 transitions. [2020-07-01 11:18:13,586 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 11:18:13,587 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 11:18:13,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 12 transitions. [2020-07-01 11:18:13,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:18:13,588 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-07-01 11:18:13,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 12 transitions. [2020-07-01 11:18:13,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-07-01 11:18:13,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 11:18:13,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2020-07-01 11:18:13,617 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-07-01 11:18:13,617 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-07-01 11:18:13,617 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:18:13,617 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 12 transitions. [2020-07-01 11:18:13,618 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:18:13,618 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:18:13,618 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:18:13,618 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:18:13,619 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:18:13,619 INFO L794 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRY [60] ULTIMATE.startENTRY-->L24-2: Formula: (and (<= 0 (+ v_ULTIMATE.start_main_~x~0_15 v_ULTIMATE.start_main_~y~0_11)) (< v_ULTIMATE.start_main_~y~0_11 536870912) (< v_ULTIMATE.start_main_~N~0_9 536870912) (< v_ULTIMATE.start_main_~x~0_15 536870912) (<= 0 (+ v_ULTIMATE.start_main_~x~0_15 1073741824))) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_8|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_15} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~N~0, ULTIMATE.start_main_~x~0] 80#L24-2 [42] L24-2-->L24: Formula: (<= v_ULTIMATE.start_main_~x~0_8 v_ULTIMATE.start_main_~N~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_7} AuxVars[] AssignedVars[] 85#L24 [44] L24-->L24-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_11 (+ v_ULTIMATE.start_main_~x~0_12 1)) (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 81#L24-2 [2020-07-01 11:18:13,619 INFO L796 eck$LassoCheckResult]: Loop: 81#L24-2 [42] L24-2-->L24: Formula: (<= v_ULTIMATE.start_main_~x~0_8 v_ULTIMATE.start_main_~N~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_7} AuxVars[] AssignedVars[] 82#L24 [56] L24-->L24-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~y~0_8 1)) (= v_ULTIMATE.start_main_~x~0_9 (+ (* v_ULTIMATE.start_main_~x~0_10 2) v_ULTIMATE.start_main_~y~0_8)) (< 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 81#L24-2 [2020-07-01 11:18:13,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:18:13,620 INFO L82 PathProgramCache]: Analyzing trace with hash 88797, now seen corresponding path program 1 times [2020-07-01 11:18:13,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:18:13,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952135447] [2020-07-01 11:18:13,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:18:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:18:13,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:18:13,631 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:18:13,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:18:13,632 INFO L82 PathProgramCache]: Analyzing trace with hash 2319, now seen corresponding path program 2 times [2020-07-01 11:18:13,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:18:13,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254913394] [2020-07-01 11:18:13,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:18:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:18:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:18:13,639 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:18:13,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:18:13,640 INFO L82 PathProgramCache]: Analyzing trace with hash 85335275, now seen corresponding path program 1 times [2020-07-01 11:18:13,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:18:13,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013431595] [2020-07-01 11:18:13,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:18:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:18:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:18:13,655 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:18:13,683 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:18:13,683 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:18:13,683 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:18:13,683 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:18:13,683 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:18:13,683 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:18:13,684 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:18:13,684 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:18:13,684 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:18:13,684 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:18:13,684 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:18:13,685 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 11:18:13,695 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 11:18:13,727 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:18:13,727 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:18:13,731 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:18:13,731 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:18:13,767 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:18:13,767 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:18:13,874 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:18:13,875 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=-2, ULTIMATE.start_main_~N~0=1, ULTIMATE.start_main_~x~0=1} Honda state: {ULTIMATE.start_main_~y~0=-2, ULTIMATE.start_main_~N~0=1, ULTIMATE.start_main_~x~0=1} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~N~0=1, ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~y~0=-3, ULTIMATE.start_main_~N~0=4, ULTIMATE.start_main_~x~0=3}, {ULTIMATE.start_main_~y~0=5, ULTIMATE.start_main_~N~0=-5, ULTIMATE.start_main_~x~0=-5}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:18:13,908 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:18:13,908 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:18:13,912 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:18:13,912 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=1} Honda state: {ULTIMATE.start_main_#t~nondet3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 11:18:13,989 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:18:13,989 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:18:13,989 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:18:13,989 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:18:13,989 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:18:13,989 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:18:13,989 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:18:13,990 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:18:13,990 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Lasso [2020-07-01 11:18:13,990 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:18:13,990 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:18:13,992 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 11:18:13,994 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 11:18:13,996 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 11:18:13,999 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 11:18:14,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:18:14,004 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 11:18:14,079 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:18:14,079 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:18:14,083 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:18:14,083 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:18:14,087 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:18:14,087 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:18:14,120 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:18:14,120 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:18:14,123 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:18:14,124 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:18:14,156 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:18:14,156 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:18:14,160 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:18:14,161 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=1} Honda state: {ULTIMATE.start_main_#t~nondet3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:18:14,193 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:18:14,193 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:18:14,197 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:18:14,197 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:18:14,229 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:18:14,230 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:18:14,233 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:18:14,233 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:18:14,265 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:18:14,266 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:18:14,304 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:18:14,304 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:18:26,433 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2020-07-01 11:18:26,447 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:18:26,447 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:18:26,447 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:18:26,447 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:18:26,447 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:18:26,447 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:18:26,448 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:18:26,448 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:18:26,448 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Lasso [2020-07-01 11:18:26,448 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:18:26,448 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:18:26,450 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 11:18:26,453 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 11:18:26,455 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 11:18:26,458 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 11:18:26,460 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 11:18:26,480 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 11:18:26,530 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:18:26,530 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:18:26,535 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 11:18:26,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:18:26,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:18:26,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:18:26,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:18:26,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:18:26,538 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:18:26,538 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:18:26,539 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:18:26,572 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 11:18:26,574 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:18:26,574 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:18:26,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:18:26,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:18:26,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:18:26,575 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:18:26,575 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:18:26,577 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:18:26,609 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 11:18:26,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:18:26,611 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:18:26,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:18:26,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:18:26,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:18:26,612 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:18:26,613 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:18:26,615 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:18:26,648 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 11:18:26,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:18:26,650 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:18:26,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:18:26,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:18:26,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:18:26,651 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:18:26,651 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:18:26,653 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:18:26,685 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 11:18:26,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:18:26,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:18:26,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:18:26,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:18:26,693 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:18:26,693 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:18:26,705 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:18:26,718 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-07-01 11:18:26,718 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:18:26,725 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:18:26,728 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-07-01 11:18:26,729 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:18:26,729 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~N~0) = -2*ULTIMATE.start_main_~x~0 + 2*ULTIMATE.start_main_~N~0 + 1 Supporting invariants [1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 - 1 >= 0] [2020-07-01 11:18:26,762 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-01 11:18:26,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:18:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:18:26,800 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:18:26,801 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:18:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:18:26,820 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 11:18:26,820 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:18:26,837 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 11:18:26,880 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:18:26,880 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2020-07-01 11:18:26,880 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 12 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-07-01 11:18:26,937 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 12 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 11 states and 19 transitions. Complement of second has 5 states. [2020-07-01 11:18:26,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:18:26,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:18:26,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-07-01 11:18:26,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:18:26,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:18:26,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 11:18:26,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:18:26,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 4 letters. [2020-07-01 11:18:26,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:18:26,940 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 19 transitions. [2020-07-01 11:18:26,941 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:18:26,942 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 10 transitions. [2020-07-01 11:18:26,942 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-07-01 11:18:26,942 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 11:18:26,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-07-01 11:18:26,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:18:26,942 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 11:18:26,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-07-01 11:18:26,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-07-01 11:18:26,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 11:18:26,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-07-01 11:18:26,944 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 11:18:26,944 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 11:18:26,944 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:18:26,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-07-01 11:18:26,945 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:18:26,945 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:18:26,945 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:18:26,945 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:18:26,945 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:18:26,945 INFO L794 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRY [60] ULTIMATE.startENTRY-->L24-2: Formula: (and (<= 0 (+ v_ULTIMATE.start_main_~x~0_15 v_ULTIMATE.start_main_~y~0_11)) (< v_ULTIMATE.start_main_~y~0_11 536870912) (< v_ULTIMATE.start_main_~N~0_9 536870912) (< v_ULTIMATE.start_main_~x~0_15 536870912) (<= 0 (+ v_ULTIMATE.start_main_~x~0_15 1073741824))) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_8|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_15} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~N~0, ULTIMATE.start_main_~x~0] 148#L24-2 [42] L24-2-->L24: Formula: (<= v_ULTIMATE.start_main_~x~0_8 v_ULTIMATE.start_main_~N~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_7} AuxVars[] AssignedVars[] 153#L24 [57] L24-->L24-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~y~0_8 1)) (= v_ULTIMATE.start_main_~x~0_9 (+ (* v_ULTIMATE.start_main_~x~0_10 2) v_ULTIMATE.start_main_~y~0_8)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 149#L24-2 [2020-07-01 11:18:26,946 INFO L796 eck$LassoCheckResult]: Loop: 149#L24-2 [42] L24-2-->L24: Formula: (<= v_ULTIMATE.start_main_~x~0_8 v_ULTIMATE.start_main_~N~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_7} AuxVars[] AssignedVars[] 150#L24 [56] L24-->L24-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~y~0_8 1)) (= v_ULTIMATE.start_main_~x~0_9 (+ (* v_ULTIMATE.start_main_~x~0_10 2) v_ULTIMATE.start_main_~y~0_8)) (< 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 149#L24-2 [2020-07-01 11:18:26,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:18:26,946 INFO L82 PathProgramCache]: Analyzing trace with hash 88810, now seen corresponding path program 1 times [2020-07-01 11:18:26,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:18:26,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138509121] [2020-07-01 11:18:26,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:18:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:18:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:18:26,956 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:18:26,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:18:26,957 INFO L82 PathProgramCache]: Analyzing trace with hash 2319, now seen corresponding path program 3 times [2020-07-01 11:18:26,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:18:26,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803936530] [2020-07-01 11:18:26,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:18:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:18:26,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:18:26,963 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:18:26,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:18:26,963 INFO L82 PathProgramCache]: Analyzing trace with hash 85347768, now seen corresponding path program 1 times [2020-07-01 11:18:26,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:18:26,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134640377] [2020-07-01 11:18:26,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:18:26,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:18:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:18:26,978 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:18:27,003 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:18:27,004 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:18:27,004 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:18:27,004 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:18:27,004 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:18:27,004 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:18:27,004 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:18:27,004 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:18:27,004 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:18:27,005 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:18:27,005 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:18:27,006 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 11:18:27,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:18:27,053 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:18:27,053 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:18:27,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:18:27,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:18:27,064 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:18:27,064 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=1} Honda state: {ULTIMATE.start_main_#t~nondet3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:18:27,103 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:18:27,104 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:18:27,141 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:18:27,142 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:18:27,237 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:18:27,237 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=-8, ULTIMATE.start_main_~N~0=7, ULTIMATE.start_main_~x~0=7} Honda state: {ULTIMATE.start_main_~y~0=-8, ULTIMATE.start_main_~N~0=7, ULTIMATE.start_main_~x~0=7} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=3, ULTIMATE.start_main_~N~0=-3, ULTIMATE.start_main_~x~0=-3}, {ULTIMATE.start_main_~y~0=-6, ULTIMATE.start_main_~N~0=6, ULTIMATE.start_main_~x~0=6}, {ULTIMATE.start_main_~y~0=4, ULTIMATE.start_main_~N~0=-3, ULTIMATE.start_main_~x~0=-4}] Lambdas: [3, 1, 1] Nus: [1, 0] [2020-07-01 11:18:27,329 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:18:27,329 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:18:27,330 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:18:27,330 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:18:27,330 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:18:27,330 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:18:27,330 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:18:27,330 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:18:27,330 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-07-01 11:18:27,330 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:18:27,330 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:18:27,332 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 11:18:27,335 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 11:18:27,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:18:27,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:18:27,342 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 11:18:27,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:18:27,476 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:18:27,476 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:18:27,480 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:18:27,480 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:18:27,484 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:18:27,484 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:18:27,517 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:18:27,518 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:18:27,521 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:18:27,521 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:18:27,554 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:18:27,554 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:18:27,557 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:18:27,557 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:18:27,590 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:18:27,590 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:18:27,593 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:18:27,593 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:18:27,627 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:18:27,627 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:18:27,664 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:18:27,664 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:18:39,993 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2020-07-01 11:18:40,006 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:18:40,007 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:18:40,007 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:18:40,007 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:18:40,007 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:18:40,007 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:18:40,007 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:18:40,007 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:18:40,007 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-07-01 11:18:40,008 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:18:40,008 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:18:40,009 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 11:18:40,034 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 11:18:40,036 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 11:18:40,038 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 11:18:40,041 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 11:18:40,043 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 11:18:40,150 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:18:40,150 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:18:40,154 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 11:18:40,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:18:40,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:18:40,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:18:40,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:18:40,161 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:18:40,161 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:18:40,174 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:18:40,189 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-07-01 11:18:40,189 INFO L444 ModelExtractionUtils]: 2 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:18:40,193 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:18:40,196 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-07-01 11:18:40,197 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:18:40,197 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~N~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = 4*ULTIMATE.start_main_~N~0 + 1*ULTIMATE.start_main_~y~0 - 3*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 - 1 >= 0] [2020-07-01 11:18:40,230 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-01 11:18:40,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:18:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:18:40,262 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:18:40,263 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:18:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:18:40,278 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:18:40,279 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:18:40,293 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 11:18:40,330 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:18:40,330 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2020-07-01 11:18:40,330 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-07-01 11:18:40,372 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 9 states and 13 transitions. Complement of second has 5 states. [2020-07-01 11:18:40,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:18:40,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:18:40,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2020-07-01 11:18:40,385 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:18:40,385 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:18:40,385 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 11:18:40,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:18:40,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 4 letters. [2020-07-01 11:18:40,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:18:40,390 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 13 transitions. [2020-07-01 11:18:40,391 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:18:40,391 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2020-07-01 11:18:40,391 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:18:40,392 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:18:40,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:18:40,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:18:40,392 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:18:40,392 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:18:40,392 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:18:40,392 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 11:18:40,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:18:40,392 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:18:40,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:18:40,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:18:40 BasicIcfg [2020-07-01 11:18:40,398 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:18:40,401 INFO L168 Benchmark]: Toolchain (without parser) took 47698.28 ms. Allocated memory was 649.6 MB in the beginning and 775.9 MB in the end (delta: 126.4 MB). Free memory was 561.2 MB in the beginning and 735.3 MB in the end (delta: -174.1 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:18:40,401 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:18:40,402 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.98 ms. Allocated memory was 649.6 MB in the beginning and 690.5 MB in the end (delta: 40.9 MB). Free memory was 561.2 MB in the beginning and 653.2 MB in the end (delta: -92.0 MB). Peak memory consumption was 27.9 MB. Max. memory is 50.3 GB. [2020-07-01 11:18:40,402 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.50 ms. Allocated memory is still 690.5 MB. Free memory was 653.2 MB in the beginning and 652.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:18:40,403 INFO L168 Benchmark]: Boogie Preprocessor took 19.97 ms. Allocated memory is still 690.5 MB. Free memory was 652.1 MB in the beginning and 651.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:18:40,403 INFO L168 Benchmark]: RCFGBuilder took 244.05 ms. Allocated memory is still 690.5 MB. Free memory was 649.9 MB in the beginning and 635.4 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:18:40,404 INFO L168 Benchmark]: BlockEncodingV2 took 85.78 ms. Allocated memory is still 690.5 MB. Free memory was 635.4 MB in the beginning and 630.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:18:40,404 INFO L168 Benchmark]: TraceAbstraction took 146.95 ms. Allocated memory is still 690.5 MB. Free memory was 628.9 MB in the beginning and 620.2 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:18:40,405 INFO L168 Benchmark]: BuchiAutomizer took 46854.14 ms. Allocated memory was 690.5 MB in the beginning and 775.9 MB in the end (delta: 85.5 MB). Free memory was 620.2 MB in the beginning and 735.3 MB in the end (delta: -115.2 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:18:40,408 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 13 edges - StatisticsResult: Encoded RCFG 3 locations, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 305.98 ms. Allocated memory was 649.6 MB in the beginning and 690.5 MB in the end (delta: 40.9 MB). Free memory was 561.2 MB in the beginning and 653.2 MB in the end (delta: -92.0 MB). Peak memory consumption was 27.9 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.50 ms. Allocated memory is still 690.5 MB. Free memory was 653.2 MB in the beginning and 652.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.97 ms. Allocated memory is still 690.5 MB. Free memory was 652.1 MB in the beginning and 651.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 244.05 ms. Allocated memory is still 690.5 MB. Free memory was 649.9 MB in the beginning and 635.4 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 85.78 ms. Allocated memory is still 690.5 MB. Free memory was 635.4 MB in the beginning and 630.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 146.95 ms. Allocated memory is still 690.5 MB. Free memory was 628.9 MB in the beginning and 620.2 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 46854.14 ms. Allocated memory was 690.5 MB in the beginning and 775.9 MB in the end (delta: 85.5 MB). Free memory was 620.2 MB in the beginning and 735.3 MB in the end (delta: -115.2 MB). There was no memory consumed. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 23]: 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, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has 2-nested ranking function (if -2 * y + -2 * x + 1 > 0 then 1 else 0), (if -2 * y + -2 * x + 1 > 0 then -2 * y + -2 * x + 1 else -2 * x + 2 * N + 1) and consists of 3 locations. One nondeterministic module has affine ranking function -2 * x + 2 * N + 1 and consists of 4 locations. One nondeterministic module has affine ranking function 4 * N + y + -3 * x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 46.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 40.2s. Construction of modules took 0.0s. Büchi inclusion checks took 6.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 8 SDtfs, 21 SDslu, 0 SDs, 0 SdLazy, 34 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital36 mio100 ax100 hnf100 lsp90 ukn100 mio100 lsp100 div127 bol100 ite100 ukn100 eq153 hnf84 smp99 dnf100 smp100 tf102 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 94ms VariablesStem: 3 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 17 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 3 LassoNonterminationAnalysisTime: 37.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:17:49.456 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_iJLZ5K/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:18:40.854 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check