/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:14:37,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:14:37,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:14:37,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:14:37,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:14:37,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:14:37,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:14:37,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:14:37,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:14:37,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:14:37,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:14:37,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:14:37,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:14:37,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:14:37,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:14:37,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:14:37,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:14:37,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:14:37,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:14:37,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:14:37,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:14:37,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:14:37,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:14:37,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:14:37,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:14:37,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:14:37,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:14:37,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:14:37,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:14:37,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:14:37,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:14:37,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:14:37,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:14:37,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:14:37,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:14:37,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:14:37,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:14:37,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:14:37,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:14:37,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:14:37,269 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:14:37,270 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 12:14:37,284 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:14:37,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:14:37,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:14:37,286 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:14:37,286 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:14:37,286 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:14:37,286 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:14:37,286 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:14:37,287 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:14:37,287 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:14:37,287 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:14:37,287 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:14:37,287 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:14:37,288 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:14:37,288 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:37,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:14:37,288 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:14:37,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:14:37,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:14:37,289 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:14:37,289 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:14:37,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:14:37,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:14:37,289 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:14:37,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:14:37,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:14:37,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:14:37,290 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:14:37,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:14:37,457 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:14:37,471 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:14:37,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:14:37,476 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:14:37,476 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:14:37,477 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:14:37,542 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_7eQKO5/tmp/bd5620a0cf7447a78d673698b353815b/FLAG54a35168e [2020-07-01 12:14:37,865 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:14:37,866 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:14:37,873 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_7eQKO5/tmp/bd5620a0cf7447a78d673698b353815b/FLAG54a35168e [2020-07-01 12:14:38,282 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_7eQKO5/tmp/bd5620a0cf7447a78d673698b353815b [2020-07-01 12:14:38,293 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:14:38,295 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:14:38,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:14:38,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:14:38,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:14:38,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:14:38" (1/1) ... [2020-07-01 12:14:38,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e74634e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:38, skipping insertion in model container [2020-07-01 12:14:38,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:14:38" (1/1) ... [2020-07-01 12:14:38,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:14:38,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:14:38,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:14:38,547 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:14:38,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:14:38,577 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:14:38,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:38 WrapperNode [2020-07-01 12:14:38,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:14:38,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:14:38,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:14:38,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:14:38,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:38" (1/1) ... [2020-07-01 12:14:38,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:38" (1/1) ... [2020-07-01 12:14:38,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:14:38,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:14:38,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:14:38,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:14:38,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:38" (1/1) ... [2020-07-01 12:14:38,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:38" (1/1) ... [2020-07-01 12:14:38,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:38" (1/1) ... [2020-07-01 12:14:38,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:38" (1/1) ... [2020-07-01 12:14:38,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:38" (1/1) ... [2020-07-01 12:14:38,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:38" (1/1) ... [2020-07-01 12:14:38,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:38" (1/1) ... [2020-07-01 12:14:38,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:14:38,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:14:38,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:14:38,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:14:38,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:38" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:14:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:14:38,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:14:38,877 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:14:38,878 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-01 12:14:38,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:14:38 BoogieIcfgContainer [2020-07-01 12:14:38,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:14:38,882 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:14:38,882 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:14:38,884 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:14:38,885 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:14:38" (1/1) ... [2020-07-01 12:14:38,898 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 14 edges [2020-07-01 12:14:38,900 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:14:38,900 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:14:38,901 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:14:38,901 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:14:38,903 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:14:38,904 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:14:38,904 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:14:38,919 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:14:38,936 INFO L200 BlockEncoder]: SBE split 4 edges [2020-07-01 12:14:38,941 INFO L70 emoveInfeasibleEdges]: Removed 3 edges and 0 locations because of local infeasibility [2020-07-01 12:14:38,943 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:14:38,958 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 12:14:38,960 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 12:14:38,962 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:14:38,962 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:14:38,962 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:14:38,963 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:14:38,963 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 11 edges [2020-07-01 12:14:38,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:14:38 BasicIcfg [2020-07-01 12:14:38,964 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:14:38,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:14:38,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:14:38,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:14:38,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:14:38" (1/4) ... [2020-07-01 12:14:38,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16272770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:14:38, skipping insertion in model container [2020-07-01 12:14:38,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:38" (2/4) ... [2020-07-01 12:14:38,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16272770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:14:38, skipping insertion in model container [2020-07-01 12:14:38,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:14:38" (3/4) ... [2020-07-01 12:14:38,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16272770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:14:38, skipping insertion in model container [2020-07-01 12:14:38,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:14:38" (4/4) ... [2020-07-01 12:14:38,974 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:14:38,986 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:14:38,994 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:14:39,010 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:14:39,036 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:14:39,036 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:14:39,036 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:14:39,036 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:14:39,036 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:14:39,037 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:14:39,037 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:14:39,037 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:14:39,052 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-07-01 12:14:39,058 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:14:39,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-07-01 12:14:39,122 INFO L271 CegarLoopResult]: At program point L19-2(lines 19 21) the Hoare annotation is: true [2020-07-01 12:14:39,123 INFO L268 CegarLoopResult]: For program point L19-3(lines 19 21) no Hoare annotation was computed. [2020-07-01 12:14:39,123 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:14:39,123 INFO L271 CegarLoopResult]: At program point L23-2(lines 23 25) the Hoare annotation is: true [2020-07-01 12:14:39,123 INFO L271 CegarLoopResult]: At program point L23-3(lines 18 26) the Hoare annotation is: true [2020-07-01 12:14:39,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:14:39 BasicIcfg [2020-07-01 12:14:39,132 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:14:39,133 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:14:39,133 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:14:39,136 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:14:39,137 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:14:39,137 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:14:38" (1/5) ... [2020-07-01 12:14:39,138 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d065007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:14:39, skipping insertion in model container [2020-07-01 12:14:39,138 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:14:39,138 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:38" (2/5) ... [2020-07-01 12:14:39,138 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d065007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:14:39, skipping insertion in model container [2020-07-01 12:14:39,139 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:14:39,139 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:14:38" (3/5) ... [2020-07-01 12:14:39,139 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d065007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:14:39, skipping insertion in model container [2020-07-01 12:14:39,139 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:14:39,139 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:14:38" (4/5) ... [2020-07-01 12:14:39,140 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d065007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:14:39, skipping insertion in model container [2020-07-01 12:14:39,140 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:14:39,140 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:14:39" (5/5) ... [2020-07-01 12:14:39,141 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:14:39,169 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:14:39,169 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:14:39,170 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:14:39,170 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:14:39,170 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:14:39,170 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:14:39,170 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:14:39,170 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:14:39,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-07-01 12:14:39,191 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:14:39,192 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:14:39,192 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:14:39,197 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:14:39,197 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 12:14:39,197 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:14:39,198 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-07-01 12:14:39,198 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:14:39,198 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:14:39,199 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:14:39,199 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:14:39,199 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 12:14:39,204 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [46] ULTIMATE.startENTRY-->L23-3: Formula: (and (= v_ULTIMATE.start_main_~n~0_2 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_2, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~x~0] 7#L23-3true [2020-07-01 12:14:39,204 INFO L796 eck$LassoCheckResult]: Loop: 7#L23-3true [56] L23-3-->L19-2: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 6#L19-2true [62] L19-2-->L19-3: Formula: (> 0 v_ULTIMATE.start_main_~y~0_8) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 5#L19-3true [48] L19-3-->L23-2: Formula: (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 3#L23-2true [66] L23-2-->L23-3: Formula: (> v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~n~0_7) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4] 7#L23-3true [2020-07-01 12:14:39,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:39,211 INFO L82 PathProgramCache]: Analyzing trace with hash 77, now seen corresponding path program 1 times [2020-07-01 12:14:39,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:14:39,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808903555] [2020-07-01 12:14:39,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:14:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:39,292 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:14:39,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:39,293 INFO L82 PathProgramCache]: Analyzing trace with hash 2652953, now seen corresponding path program 1 times [2020-07-01 12:14:39,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:14:39,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353326681] [2020-07-01 12:14:39,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:14:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:39,311 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:14:39,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:39,313 INFO L82 PathProgramCache]: Analyzing trace with hash 72840549, now seen corresponding path program 1 times [2020-07-01 12:14:39,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:14:39,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686687209] [2020-07-01 12:14:39,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:14:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:39,328 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:14:39,379 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:14:39,379 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:14:39,379 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:14:39,380 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:14:39,380 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:14:39,380 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:39,380 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:14:39,380 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:14:39,381 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:14:39,381 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:14:39,381 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:14:39,401 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 12:14:39,411 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 12:14:39,415 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 12:14:39,424 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 12:14:39,432 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 12:14:39,435 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 12:14:39,530 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:14:39,530 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:39,538 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:14:39,538 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:14:39,548 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:14:39,548 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:39,584 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:14:39,584 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:14:39,590 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:14:39,590 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:39,625 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:14:39,625 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:39,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:14:39,662 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:14:39,699 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:14:39,702 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:14:39,702 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:14:39,702 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:14:39,702 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:14:39,702 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:14:39,702 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:14:39,703 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:14:39,703 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:14:39,703 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:14:39,703 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:14:39,703 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:14:39,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:14:39,709 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 12:14:39,716 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 12:14:39,720 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 12:14:39,727 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 12:14:39,730 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 12:14:39,798 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:14:39,804 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:14:39,809 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 12:14:39,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:14:39,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:14:39,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:14:39,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:14:39,819 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:14:39,819 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:14:39,829 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:14:39,863 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 12:14:39,865 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:14:39,866 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:14:39,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:14:39,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:14:39,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:14:39,868 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:14:39,868 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:14:39,871 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:14:39,876 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:14:39,877 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:14:39,883 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:14:39,883 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:14:39,883 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:14:39,884 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-07-01 12:14:39,917 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:14:39,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:39,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:14:39,965 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:14:39,966 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:14:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:14:39,977 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:14:39,977 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:14:40,023 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 12:14:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:14:40,081 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:14:40,082 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:14:40,093 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-07-01 12:14:40,099 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 4 loop predicates [2020-07-01 12:14:40,100 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states. Second operand 4 states. [2020-07-01 12:14:40,207 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states.. Second operand 4 states. Result 14 states and 39 transitions. Complement of second has 6 states. [2020-07-01 12:14:40,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 12:14:40,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:14:40,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2020-07-01 12:14:40,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 12:14:40,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:14:40,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 4 letters. [2020-07-01 12:14:40,215 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:14:40,215 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 1 letters. Loop has 8 letters. [2020-07-01 12:14:40,215 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:14:40,222 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 39 transitions. [2020-07-01 12:14:40,224 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-01 12:14:40,230 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 35 transitions. [2020-07-01 12:14:40,232 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-07-01 12:14:40,232 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-07-01 12:14:40,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 35 transitions. [2020-07-01 12:14:40,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:14:40,233 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 35 transitions. [2020-07-01 12:14:40,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 35 transitions. [2020-07-01 12:14:40,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 10. [2020-07-01 12:14:40,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-01 12:14:40,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 28 transitions. [2020-07-01 12:14:40,266 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 28 transitions. [2020-07-01 12:14:40,266 INFO L591 BuchiCegarLoop]: Abstraction has 10 states and 28 transitions. [2020-07-01 12:14:40,266 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:14:40,267 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 28 transitions. [2020-07-01 12:14:40,267 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-01 12:14:40,268 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:14:40,268 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:14:40,268 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:14:40,268 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:14:40,269 INFO L794 eck$LassoCheckResult]: Stem: 77#ULTIMATE.startENTRY [46] ULTIMATE.startENTRY-->L23-3: Formula: (and (= v_ULTIMATE.start_main_~n~0_2 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_2, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~x~0] 78#L23-3 [56] L23-3-->L19-2: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 81#L19-2 [2020-07-01 12:14:40,269 INFO L796 eck$LassoCheckResult]: Loop: 81#L19-2 [64] L19-2-->L19-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet3_5|) (<= 0 v_ULTIMATE.start_main_~y~0_10) (= v_ULTIMATE.start_main_~y~0_9 (+ v_ULTIMATE.start_main_~y~0_10 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0] 81#L19-2 [2020-07-01 12:14:40,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:40,270 INFO L82 PathProgramCache]: Analyzing trace with hash 2443, now seen corresponding path program 1 times [2020-07-01 12:14:40,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:14:40,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107173029] [2020-07-01 12:14:40,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:14:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:40,278 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:14:40,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:40,279 INFO L82 PathProgramCache]: Analyzing trace with hash 95, now seen corresponding path program 1 times [2020-07-01 12:14:40,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:14:40,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354193690] [2020-07-01 12:14:40,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:14:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:40,287 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:14:40,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:40,288 INFO L82 PathProgramCache]: Analyzing trace with hash 75797, now seen corresponding path program 1 times [2020-07-01 12:14:40,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:14:40,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274971010] [2020-07-01 12:14:40,289 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:14:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:40,299 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:14:40,319 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:14:40,319 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:14:40,319 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:14:40,319 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:14:40,320 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:14:40,320 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:40,320 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:14:40,320 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:14:40,321 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:14:40,321 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:14:40,321 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:14:40,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:14:40,330 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 12:14:40,335 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 12:14:40,339 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 12:14:40,394 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:14:40,395 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 12:14:40,400 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:14:40,400 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:14:40,405 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:14:40,405 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 12:14:40,439 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:14:40,440 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:14:40,444 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:14:40,445 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 12:14:40,480 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:14:40,481 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:14:40,485 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:14:40,485 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/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:40,521 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:14:40,521 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:40,560 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:14:40,560 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:14:40,598 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:14:40,600 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:14:40,600 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:14:40,601 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:14:40,601 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:14:40,601 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:14:40,601 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:14:40,601 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:14:40,602 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:14:40,602 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:14:40,602 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:14:40,602 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:14:40,604 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 12:14:40,613 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 12:14:40,617 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 12:14:40,621 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 12:14:40,674 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:14:40,674 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:14:40,684 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 12:14:40,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:14:40,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:14:40,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:14:40,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:14:40,690 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:14:40,690 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:14:40,695 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:14:40,729 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 12:14:40,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:14:40,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:14:40,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:14:40,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:14:40,735 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:14:40,735 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:14:40,739 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:14:40,773 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 12:14:40,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:14:40,776 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:14:40,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:14:40,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:14:40,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:14:40,777 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:14:40,777 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:14:40,779 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:14:40,813 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 12:14:40,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:14:40,815 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:14:40,816 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:14:40,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:14:40,816 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:14:40,817 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:14:40,817 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:14:40,820 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:14:40,824 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:14:40,824 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 12:14:40,828 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:14:40,829 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:14:40,829 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:14:40,829 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2020-07-01 12:14:40,859 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:14:40,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:40,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:14:40,879 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:14:40,879 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:14:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:14:40,883 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:14:40,884 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:14:40,884 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 12:14:40,884 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 12:14:40,885 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-01 12:14:40,885 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 10 states and 28 transitions. cyclomatic complexity: 21 Second operand 2 states. [2020-07-01 12:14:40,925 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 10 states and 28 transitions. cyclomatic complexity: 21. Second operand 2 states. Result 21 states and 49 transitions. Complement of second has 6 states. [2020-07-01 12:14:40,926 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 12:14:40,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 12:14:40,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2020-07-01 12:14:40,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 12:14:40,927 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:14:40,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 12:14:40,927 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:14:40,928 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-01 12:14:40,928 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:14:40,929 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 49 transitions. [2020-07-01 12:14:40,931 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:14:40,932 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 14 states and 33 transitions. [2020-07-01 12:14:40,932 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 12:14:40,933 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2020-07-01 12:14:40,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 33 transitions. [2020-07-01 12:14:40,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:14:40,933 INFO L688 BuchiCegarLoop]: Abstraction has 14 states and 33 transitions. [2020-07-01 12:14:40,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 33 transitions. [2020-07-01 12:14:40,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-07-01 12:14:40,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-01 12:14:40,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 33 transitions. [2020-07-01 12:14:40,935 INFO L711 BuchiCegarLoop]: Abstraction has 14 states and 33 transitions. [2020-07-01 12:14:40,935 INFO L591 BuchiCegarLoop]: Abstraction has 14 states and 33 transitions. [2020-07-01 12:14:40,936 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 12:14:40,936 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 33 transitions. [2020-07-01 12:14:40,936 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:14:40,937 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:14:40,937 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:14:40,937 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-01 12:14:40,937 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:14:40,938 INFO L794 eck$LassoCheckResult]: Stem: 137#ULTIMATE.startENTRY [46] ULTIMATE.startENTRY-->L23-3: Formula: (and (= v_ULTIMATE.start_main_~n~0_2 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_2, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, 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] 138#L23-3 [56] L23-3-->L19-2: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 142#L19-2 [63] L19-2-->L19-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 141#L19-3 [48] L19-3-->L23-2: Formula: (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 144#L23-2 [69] L23-2-->L23-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet4_2|) (= v_ULTIMATE.start_main_~y~0_1 (+ v_ULTIMATE.start_main_~y~0_2 1)) (<= v_ULTIMATE.start_main_~y~0_2 v_ULTIMATE.start_main_~n~0_1)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~y~0] 134#L23-2 [2020-07-01 12:14:40,938 INFO L796 eck$LassoCheckResult]: Loop: 134#L23-2 [68] L23-2-->L23-2: Formula: (and (> 0 |v_ULTIMATE.start_main_#t~nondet4_2|) (= v_ULTIMATE.start_main_~y~0_1 (+ v_ULTIMATE.start_main_~y~0_2 1)) (<= v_ULTIMATE.start_main_~y~0_2 v_ULTIMATE.start_main_~n~0_1)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~y~0] 134#L23-2 [2020-07-01 12:14:40,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:40,938 INFO L82 PathProgramCache]: Analyzing trace with hash 72841513, now seen corresponding path program 1 times [2020-07-01 12:14:40,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:14:40,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212024724] [2020-07-01 12:14:40,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:14:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:40,951 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:14:40,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:40,951 INFO L82 PathProgramCache]: Analyzing trace with hash 99, now seen corresponding path program 1 times [2020-07-01 12:14:40,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:14:40,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874601792] [2020-07-01 12:14:40,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:14:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:40,958 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:14:40,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:40,958 INFO L82 PathProgramCache]: Analyzing trace with hash -2036880325, now seen corresponding path program 1 times [2020-07-01 12:14:40,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:14:40,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314596386] [2020-07-01 12:14:40,959 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:14:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:40,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:40,972 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:14:40,990 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:14:40,990 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:14:40,990 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:14:40,991 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:14:40,991 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:14:40,991 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:40,991 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:14:40,991 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:14:40,991 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 12:14:40,992 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:14:40,992 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:14:40,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:14:40,999 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 12:14:41,003 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 12:14:41,006 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 12:14:41,058 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:14:41,058 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:41,062 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:14:41,062 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:41,099 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:14:41,100 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:14:41,289 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:14:41,291 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:14:41,291 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:14:41,292 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:14:41,292 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:14:41,292 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:14:41,292 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:14:41,292 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:14:41,292 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:14:41,292 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 12:14:41,292 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:14:41,293 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:14:41,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:14:41,325 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 12:14:41,331 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 12:14:41,336 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 12:14:41,389 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:14:41,389 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:14:41,397 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 12:14:41,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:14:41,399 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:14:41,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:14:41,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:14:41,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:14:41,401 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:14:41,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:14:41,404 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:14:41,410 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:14:41,410 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:14:41,415 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:14:41,415 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:14:41,416 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:14:41,416 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~n~0 - 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2020-07-01 12:14:41,446 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:14:41,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:14:41,465 INFO L264 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:14:41,466 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:14:41,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:14:41,469 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:14:41,470 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:14:41,470 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 12:14:41,470 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 12:14:41,470 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-01 12:14:41,471 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 14 states and 33 transitions. cyclomatic complexity: 21 Second operand 2 states. [2020-07-01 12:14:41,507 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 14 states and 33 transitions. cyclomatic complexity: 21. Second operand 2 states. Result 37 states and 85 transitions. Complement of second has 4 states. [2020-07-01 12:14:41,507 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 12:14:41,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 12:14:41,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2020-07-01 12:14:41,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 5 letters. Loop has 1 letters. [2020-07-01 12:14:41,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:14:41,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 6 letters. Loop has 1 letters. [2020-07-01 12:14:41,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:14:41,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 12:14:41,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:14:41,510 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 85 transitions. [2020-07-01 12:14:41,513 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:14:41,514 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 27 states and 61 transitions. [2020-07-01 12:14:41,514 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 12:14:41,514 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2020-07-01 12:14:41,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 61 transitions. [2020-07-01 12:14:41,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:14:41,514 INFO L688 BuchiCegarLoop]: Abstraction has 27 states and 61 transitions. [2020-07-01 12:14:41,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 61 transitions. [2020-07-01 12:14:41,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2020-07-01 12:14:41,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-01 12:14:41,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 45 transitions. [2020-07-01 12:14:41,518 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 45 transitions. [2020-07-01 12:14:41,518 INFO L591 BuchiCegarLoop]: Abstraction has 19 states and 45 transitions. [2020-07-01 12:14:41,518 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 12:14:41,518 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 45 transitions. [2020-07-01 12:14:41,519 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:14:41,519 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:14:41,519 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:14:41,519 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-01 12:14:41,519 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:14:41,520 INFO L794 eck$LassoCheckResult]: Stem: 226#ULTIMATE.startENTRY [46] ULTIMATE.startENTRY-->L23-3: Formula: (and (= v_ULTIMATE.start_main_~n~0_2 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_2, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, 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] 227#L23-3 [56] L23-3-->L19-2: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 230#L19-2 [63] L19-2-->L19-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 236#L19-3 [48] L19-3-->L23-2: Formula: (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 232#L23-2 [68] L23-2-->L23-2: Formula: (and (> 0 |v_ULTIMATE.start_main_#t~nondet4_2|) (= v_ULTIMATE.start_main_~y~0_1 (+ v_ULTIMATE.start_main_~y~0_2 1)) (<= v_ULTIMATE.start_main_~y~0_2 v_ULTIMATE.start_main_~n~0_1)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~y~0] 222#L23-2 [2020-07-01 12:14:41,520 INFO L796 eck$LassoCheckResult]: Loop: 222#L23-2 [68] L23-2-->L23-2: Formula: (and (> 0 |v_ULTIMATE.start_main_#t~nondet4_2|) (= v_ULTIMATE.start_main_~y~0_1 (+ v_ULTIMATE.start_main_~y~0_2 1)) (<= v_ULTIMATE.start_main_~y~0_2 v_ULTIMATE.start_main_~n~0_1)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~y~0] 222#L23-2 [2020-07-01 12:14:41,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:41,520 INFO L82 PathProgramCache]: Analyzing trace with hash 72841512, now seen corresponding path program 1 times [2020-07-01 12:14:41,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:14:41,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571850316] [2020-07-01 12:14:41,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:14:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:41,532 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:14:41,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:41,532 INFO L82 PathProgramCache]: Analyzing trace with hash 99, now seen corresponding path program 2 times [2020-07-01 12:14:41,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:14:41,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474133610] [2020-07-01 12:14:41,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:14:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:41,538 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:14:41,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:41,539 INFO L82 PathProgramCache]: Analyzing trace with hash -2036880356, now seen corresponding path program 2 times [2020-07-01 12:14:41,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:14:41,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242636240] [2020-07-01 12:14:41,539 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:14:41,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:41,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:41,552 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:14:41,566 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:14:41,567 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:14:41,567 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:14:41,567 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:14:41,567 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:14:41,567 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:41,567 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:14:41,567 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:14:41,567 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 12:14:41,567 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:14:41,568 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:14:41,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:14:41,575 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 12:14:41,577 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 12:14:41,580 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 12:14:41,614 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:14:41,614 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:41,617 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:14:41,617 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:41,652 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:14:41,652 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:14:41,829 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:14:41,831 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:14:41,831 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:14:41,831 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:14:41,831 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:14:41,831 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:14:41,831 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:14:41,831 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:14:41,831 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:14:41,832 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 12:14:41,832 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:14:41,832 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:14:41,833 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 12:14:41,839 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 12:14:41,842 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 12:14:41,844 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 12:14:41,879 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:14:41,879 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:14:41,882 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 12:14:41,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:14:41,884 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:14:41,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:14:41,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:14:41,884 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:14:41,885 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:14:41,885 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:14:41,888 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:14:41,891 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:14:41,891 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:14:41,894 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:14:41,895 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:14:41,895 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:14:41,895 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~n~0) = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~n~0 + 1 Supporting invariants [] [2020-07-01 12:14:41,924 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:14:41,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:14:41,943 INFO L264 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:14:41,943 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:14:41,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:14:41,947 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:14:41,948 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:14:41,948 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 12:14:41,948 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 12:14:41,948 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-01 12:14:41,948 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 19 states and 45 transitions. cyclomatic complexity: 28 Second operand 2 states. [2020-07-01 12:14:41,986 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 19 states and 45 transitions. cyclomatic complexity: 28. Second operand 2 states. Result 48 states and 112 transitions. Complement of second has 4 states. [2020-07-01 12:14:41,986 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 12:14:41,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 12:14:41,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2020-07-01 12:14:41,987 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 5 letters. Loop has 1 letters. [2020-07-01 12:14:41,987 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:14:41,987 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 6 letters. Loop has 1 letters. [2020-07-01 12:14:41,987 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:14:41,987 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 12:14:41,988 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:14:41,989 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 112 transitions. [2020-07-01 12:14:41,991 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:14:41,991 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 0 states and 0 transitions. [2020-07-01 12:14:41,991 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:14:41,992 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:14:41,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:14:41,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:14:41,992 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:14:41,992 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:14:41,992 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:14:41,992 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 12:14:41,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:14:41,992 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:14:41,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:14:41,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:14:41 BasicIcfg [2020-07-01 12:14:41,999 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:14:42,001 INFO L168 Benchmark]: Toolchain (without parser) took 3705.53 ms. Allocated memory was 649.6 MB in the beginning and 761.8 MB in the end (delta: 112.2 MB). Free memory was 561.5 MB in the beginning and 621.2 MB in the end (delta: -59.7 MB). Peak memory consumption was 52.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:14:42,002 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:14:42,002 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.37 ms. Allocated memory was 649.6 MB in the beginning and 694.2 MB in the end (delta: 44.6 MB). Free memory was 561.5 MB in the beginning and 656.9 MB in the end (delta: -95.4 MB). Peak memory consumption was 28.2 MB. Max. memory is 50.3 GB. [2020-07-01 12:14:42,003 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.99 ms. Allocated memory is still 694.2 MB. Free memory was 656.9 MB in the beginning and 655.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:14:42,004 INFO L168 Benchmark]: Boogie Preprocessor took 20.30 ms. Allocated memory is still 694.2 MB. Free memory was 655.9 MB in the beginning and 654.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:14:42,004 INFO L168 Benchmark]: RCFGBuilder took 247.53 ms. Allocated memory is still 694.2 MB. Free memory was 654.8 MB in the beginning and 639.2 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:14:42,005 INFO L168 Benchmark]: BlockEncodingV2 took 82.46 ms. Allocated memory is still 694.2 MB. Free memory was 639.2 MB in the beginning and 633.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:14:42,005 INFO L168 Benchmark]: TraceAbstraction took 166.81 ms. Allocated memory is still 694.2 MB. Free memory was 633.8 MB in the beginning and 624.8 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 50.3 GB. [2020-07-01 12:14:42,006 INFO L168 Benchmark]: BuchiAutomizer took 2866.17 ms. Allocated memory was 694.2 MB in the beginning and 761.8 MB in the end (delta: 67.6 MB). Free memory was 623.8 MB in the beginning and 621.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 70.2 MB. Max. memory is 50.3 GB. [2020-07-01 12:14:42,009 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 14 edges - StatisticsResult: Encoded RCFG 5 locations, 11 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 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 282.37 ms. Allocated memory was 649.6 MB in the beginning and 694.2 MB in the end (delta: 44.6 MB). Free memory was 561.5 MB in the beginning and 656.9 MB in the end (delta: -95.4 MB). Peak memory consumption was 28.2 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.99 ms. Allocated memory is still 694.2 MB. Free memory was 656.9 MB in the beginning and 655.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.30 ms. Allocated memory is still 694.2 MB. Free memory was 655.9 MB in the beginning and 654.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 247.53 ms. Allocated memory is still 694.2 MB. Free memory was 654.8 MB in the beginning and 639.2 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 82.46 ms. Allocated memory is still 694.2 MB. Free memory was 639.2 MB in the beginning and 633.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 166.81 ms. Allocated memory is still 694.2 MB. Free memory was 633.8 MB in the beginning and 624.8 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2866.17 ms. Allocated memory was 694.2 MB in the beginning and 761.8 MB in the end (delta: 67.6 MB). Free memory was 623.8 MB in the beginning and 621.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 70.2 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 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=5occurred 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, 3 LocationsWithAnnotation, 3 PreInvPairs, 3 NumberOfFragments, 3 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 0 deterministic, 4 nondeterministic). One nondeterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. One nondeterministic module has affine ranking function 2 * y + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * n + -2 * y + 1 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * y + 2 * n + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 19 states and ocurred in iteration 3. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 18 SDtfs, 79 SDslu, 36 SDs, 0 SdLazy, 118 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax187 hnf100 lsp38 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 12:14:35.035 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_7eQKO5/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:14:42.644 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check