/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 12:34:37,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:34:37,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:34:37,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:34:37,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:34:37,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:34:37,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:34:37,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:34:37,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:34:37,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:34:37,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:34:37,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:34:37,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:34:37,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:34:37,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:34:37,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:34:37,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:34:37,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:34:37,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:34:37,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:34:37,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:34:37,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:34:37,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:34:37,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:34:37,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:34:37,585 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:34:37,585 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:34:37,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:34:37,586 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:34:37,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:34:37,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:34:37,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:34:37,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:34:37,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:34:37,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:34:37,591 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:34:37,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:34:37,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:34:37,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:34:37,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:34:37,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:34:37,594 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 12:34:37,608 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:34:37,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:34:37,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:34:37,609 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:34:37,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:34:37,610 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:34:37,610 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:34:37,610 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:34:37,610 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:34:37,610 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:34:37,611 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:34:37,611 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:34:37,611 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:34:37,611 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:34:37,611 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:34:37,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:34:37,612 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:34:37,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:34:37,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:34:37,612 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:34:37,612 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:34:37,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:34:37,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:34:37,613 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:34:37,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:34:37,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:34:37,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:34:37,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:34:37,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:34:37,777 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:34:37,791 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:34:37,794 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:34:37,796 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:34:37,796 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:34:37,797 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:34:37,856 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_YniQxE/tmp/7bd50ec1238447b6b2c2c662e8b2ffc2/FLAGafaa75155 [2020-07-01 12:34:38,189 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:34:38,190 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:34:38,197 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_YniQxE/tmp/7bd50ec1238447b6b2c2c662e8b2ffc2/FLAGafaa75155 [2020-07-01 12:34:38,667 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_YniQxE/tmp/7bd50ec1238447b6b2c2c662e8b2ffc2 [2020-07-01 12:34:38,678 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:34:38,680 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:34:38,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:34:38,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:34:38,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:34:38,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:34:38" (1/1) ... [2020-07-01 12:34:38,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73d9cb2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:34:38, skipping insertion in model container [2020-07-01 12:34:38,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:34:38" (1/1) ... [2020-07-01 12:34:38,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:34:38,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:34:38,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:34:38,942 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:34:38,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:34:38,973 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:34:38,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:34:38 WrapperNode [2020-07-01 12:34:38,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:34:38,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:34:38,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:34:38,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:34:38,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:34:38" (1/1) ... [2020-07-01 12:34:38,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:34:38" (1/1) ... [2020-07-01 12:34:39,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:34:39,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:34:39,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:34:39,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:34:39,019 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:34:38" (1/1) ... [2020-07-01 12:34:39,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:34:38" (1/1) ... [2020-07-01 12:34:39,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:34:38" (1/1) ... [2020-07-01 12:34:39,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:34:38" (1/1) ... [2020-07-01 12:34:39,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:34:38" (1/1) ... [2020-07-01 12:34:39,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:34:38" (1/1) ... [2020-07-01 12:34:39,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:34:38" (1/1) ... [2020-07-01 12:34:39,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:34:39,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:34:39,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:34:39,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:34:39,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:34:38" (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 12:34:39,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:34:39,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:34:39,246 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:34:39,246 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 12:34:39,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:34:39 BoogieIcfgContainer [2020-07-01 12:34:39,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:34:39,251 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:34:39,251 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:34:39,253 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:34:39,254 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:34:39" (1/1) ... [2020-07-01 12:34:39,266 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-07-01 12:34:39,268 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:34:39,268 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:34:39,269 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:34:39,269 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:34:39,271 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:34:39,272 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:34:39,272 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:34:39,286 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:34:39,299 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 12:34:39,304 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 12:34:39,306 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:34:39,316 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 12:34:39,318 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-07-01 12:34:39,319 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:34:39,319 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:34:39,324 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 12:34:39,325 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:34:39,325 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:34:39,325 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:34:39,325 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:34:39,326 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:34:39,326 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 3 edges [2020-07-01 12:34:39,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:34:39 BasicIcfg [2020-07-01 12:34:39,327 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:34:39,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:34:39,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:34:39,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:34:39,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:34:38" (1/4) ... [2020-07-01 12:34:39,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79dc355d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:34:39, skipping insertion in model container [2020-07-01 12:34:39,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:34:38" (2/4) ... [2020-07-01 12:34:39,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79dc355d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:34:39, skipping insertion in model container [2020-07-01 12:34:39,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:34:39" (3/4) ... [2020-07-01 12:34:39,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79dc355d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:34:39, skipping insertion in model container [2020-07-01 12:34:39,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:34:39" (4/4) ... [2020-07-01 12:34:39,337 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:34:39,348 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:34:39,355 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:34:39,369 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:34:39,392 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:34:39,392 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:34:39,392 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:34:39,392 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:34:39,393 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:34:39,393 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:34:39,393 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:34:39,393 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:34:39,407 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-07-01 12:34:39,412 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:34:39,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-07-01 12:34:39,466 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:34:39,466 INFO L271 CegarLoopResult]: At program point L21-2(lines 21 23) the Hoare annotation is: true [2020-07-01 12:34:39,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:34:39 BasicIcfg [2020-07-01 12:34:39,474 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:34:39,475 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:34:39,475 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:34:39,478 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:34:39,479 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:34:39,480 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:34:38" (1/5) ... [2020-07-01 12:34:39,480 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62fb5fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:34:39, skipping insertion in model container [2020-07-01 12:34:39,480 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:34:39,481 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:34:38" (2/5) ... [2020-07-01 12:34:39,481 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62fb5fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:34:39, skipping insertion in model container [2020-07-01 12:34:39,481 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:34:39,481 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:34:39" (3/5) ... [2020-07-01 12:34:39,482 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62fb5fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:34:39, skipping insertion in model container [2020-07-01 12:34:39,482 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:34:39,482 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:34:39" (4/5) ... [2020-07-01 12:34:39,482 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62fb5fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:34:39, skipping insertion in model container [2020-07-01 12:34:39,482 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:34:39,483 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:34:39" (5/5) ... [2020-07-01 12:34:39,484 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:34:39,513 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:34:39,513 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:34:39,513 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:34:39,513 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:34:39,514 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:34:39,514 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:34:39,514 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:34:39,514 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:34:39,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 12:34:39,535 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:34:39,536 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:34:39,536 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:34:39,541 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:34:39,541 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:34:39,541 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:34:39,541 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 12:34:39,542 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:34:39,542 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:34:39,542 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:34:39,542 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:34:39,542 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:34:39,547 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [39] ULTIMATE.startENTRY-->L21-2: Formula: (< 0 v_ULTIMATE.start_main_~x~0_11) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 4#L21-2true [2020-07-01 12:34:39,548 INFO L796 eck$LassoCheckResult]: Loop: 4#L21-2true [35] L21-2-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (< 0 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 4#L21-2true [2020-07-01 12:34:39,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:34:39,554 INFO L82 PathProgramCache]: Analyzing trace with hash 70, now seen corresponding path program 1 times [2020-07-01 12:34:39,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:34:39,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851671414] [2020-07-01 12:34:39,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:34:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:34:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:34:39,636 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:34:39,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:34:39,657 INFO L82 PathProgramCache]: Analyzing trace with hash 66, now seen corresponding path program 1 times [2020-07-01 12:34:39,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:34:39,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176006414] [2020-07-01 12:34:39,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:34:39,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:34:39,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:34:39,670 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:34:39,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:34:39,671 INFO L82 PathProgramCache]: Analyzing trace with hash 2205, now seen corresponding path program 1 times [2020-07-01 12:34:39,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:34:39,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408023196] [2020-07-01 12:34:39,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:34:39,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:34:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:34:39,680 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:34:39,720 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:34:39,721 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:34:39,721 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:34:39,721 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:34:39,722 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:34:39,722 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:34:39,722 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:34:39,722 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:34:39,722 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:34:39,722 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:34:39,723 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:34:39,742 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 12:34:39,752 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 12:34:39,756 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 12:34:39,822 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:34:39,823 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 12:34:39,829 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:34:39,829 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:34:39,840 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:34:39,840 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 12:34:39,874 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:34:39,874 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:34:39,879 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:34:39,879 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 12:34:39,912 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:34:39,912 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 12:34:39,949 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:34:39,949 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:34:39,986 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:34:39,989 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:34:39,989 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:34:39,989 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:34:39,989 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:34:39,989 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:34:39,989 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:34:39,990 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:34:39,990 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:34:39,990 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:34:39,990 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:34:39,990 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:34:39,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:34:39,997 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 12:34:40,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:34:40,074 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:34:40,080 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 12:34:40,085 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 12:34:40,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:34:40,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:34:40,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:34:40,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:34:40,095 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:34:40,096 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:34:40,103 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 12:34:40,136 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 12:34:40,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:34:40,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:34:40,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:34:40,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:34:40,144 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:34:40,144 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:34:40,150 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:34:40,183 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 12:34:40,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:34:40,185 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:34:40,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:34:40,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:34:40,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:34:40,188 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:34:40,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:34:40,192 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:34:40,200 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:34:40,201 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:34:40,207 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:34:40,207 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:34:40,208 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:34:40,209 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 12:34:40,243 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:34:40,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:34:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:34:40,276 WARN L262 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:34:40,278 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:34:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:34:40,293 WARN L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:34:40,294 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:34:40,294 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 12:34:40,307 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 12:34:40,312 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 12:34:40,314 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 2 states. Second operand 2 states. [2020-07-01 12:34:40,340 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 2 states.. Second operand 2 states. Result 6 states and 11 transitions. Complement of second has 4 states. [2020-07-01 12:34:40,341 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 12:34:40,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 12:34:40,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-07-01 12:34:40,345 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 1 letters. [2020-07-01 12:34:40,346 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:34:40,346 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 12:34:40,346 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:34:40,347 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 12:34:40,347 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:34:40,353 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 11 transitions. [2020-07-01 12:34:40,353 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:34:40,357 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 11 transitions. [2020-07-01 12:34:40,358 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 12:34:40,358 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 12:34:40,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 11 transitions. [2020-07-01 12:34:40,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:34:40,359 INFO L688 BuchiCegarLoop]: Abstraction has 6 states and 11 transitions. [2020-07-01 12:34:40,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 11 transitions. [2020-07-01 12:34:40,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2020-07-01 12:34:40,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 12:34:40,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2020-07-01 12:34:40,387 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 10 transitions. [2020-07-01 12:34:40,387 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 10 transitions. [2020-07-01 12:34:40,387 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:34:40,388 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 10 transitions. [2020-07-01 12:34:40,388 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:34:40,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:34:40,388 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:34:40,389 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:34:40,389 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:34:40,389 INFO L794 eck$LassoCheckResult]: Stem: 36#ULTIMATE.startENTRY [39] ULTIMATE.startENTRY-->L21-2: Formula: (< 0 v_ULTIMATE.start_main_~x~0_11) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 37#L21-2 [36] L21-2-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (> 0 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 38#L21-2 [2020-07-01 12:34:40,389 INFO L796 eck$LassoCheckResult]: Loop: 38#L21-2 [36] L21-2-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (> 0 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 38#L21-2 [2020-07-01 12:34:40,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:34:40,390 INFO L82 PathProgramCache]: Analyzing trace with hash 2206, now seen corresponding path program 1 times [2020-07-01 12:34:40,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:34:40,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938982829] [2020-07-01 12:34:40,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:34:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:34:40,426 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 12:34:40,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938982829] [2020-07-01 12:34:40,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:34:40,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-01 12:34:40,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220799170] [2020-07-01 12:34:40,431 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-07-01 12:34:40,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:34:40,431 INFO L82 PathProgramCache]: Analyzing trace with hash 67, now seen corresponding path program 1 times [2020-07-01 12:34:40,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:34:40,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482130732] [2020-07-01 12:34:40,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:34:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:34:40,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:34:40,441 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:34:40,453 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:34:40,454 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:34:40,454 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:34:40,454 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:34:40,454 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:34:40,454 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:34:40,454 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:34:40,454 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:34:40,455 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:34:40,455 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:34:40,455 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:34:40,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:34:40,461 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 12:34:40,468 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 12:34:40,526 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:34:40,527 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:34:40,530 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:34:40,531 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:34:40,536 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:34:40,536 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:34:40,573 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:34:40,573 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 12:34:40,610 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:34:40,611 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:34:40,628 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:34:40,629 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=-1} Honda state: {ULTIMATE.start_main_~x~0=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=-1}] Lambdas: [12, 13, 1] Nus: [0, 0] 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 12:34:40,664 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:34:40,664 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:34:40,669 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:34:40,669 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: [] [2020-07-01 12:34:40,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:34:40,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 12:34:40,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:34:40,704 INFO L87 Difference]: Start difference. First operand 5 states and 10 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-07-01 12:34:40,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:34:40,714 INFO L93 Difference]: Finished difference Result 5 states and 8 transitions. [2020-07-01 12:34:40,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 12:34:40,716 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 8 transitions. [2020-07-01 12:34:40,716 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:34:40,717 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 5 states and 8 transitions. [2020-07-01 12:34:40,717 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 12:34:40,717 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2020-07-01 12:34:40,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 8 transitions. [2020-07-01 12:34:40,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:34:40,717 INFO L688 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 12:34:40,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 8 transitions. [2020-07-01 12:34:40,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2020-07-01 12:34:40,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 12:34:40,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-07-01 12:34:40,719 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 12:34:40,719 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 12:34:40,719 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 12:34:40,719 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 8 transitions. [2020-07-01 12:34:40,720 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:34:40,720 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:34:40,720 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:34:40,720 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 12:34:40,720 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:34:40,721 INFO L794 eck$LassoCheckResult]: Stem: 52#ULTIMATE.startENTRY [39] ULTIMATE.startENTRY-->L21-2: Formula: (< 0 v_ULTIMATE.start_main_~x~0_11) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 53#L21-2 [35] L21-2-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (< 0 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 56#L21-2 [36] L21-2-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (> 0 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 54#L21-2 [2020-07-01 12:34:40,721 INFO L796 eck$LassoCheckResult]: Loop: 54#L21-2 [36] L21-2-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (> 0 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 54#L21-2 [2020-07-01 12:34:40,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:34:40,721 INFO L82 PathProgramCache]: Analyzing trace with hash 68391, now seen corresponding path program 1 times [2020-07-01 12:34:40,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:34:40,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177875030] [2020-07-01 12:34:40,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:34:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:34:40,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:34:40,760 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177875030] [2020-07-01 12:34:40,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217989035] [2020-07-01 12:34:40,761 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 12:34:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:34:40,785 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-01 12:34:40,786 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:34:40,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:34:40,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-01 12:34:40,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2020-07-01 12:34:40,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319695037] [2020-07-01 12:34:40,806 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-07-01 12:34:40,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:34:40,807 INFO L82 PathProgramCache]: Analyzing trace with hash 67, now seen corresponding path program 2 times [2020-07-01 12:34:40,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:34:40,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598756474] [2020-07-01 12:34:40,808 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:34:40,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:34:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:34:40,814 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:34:40,825 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:34:40,825 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:34:40,825 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:34:40,826 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:34:40,826 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:34:40,826 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:34:40,826 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:34:40,826 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:34:40,826 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 12:34:40,826 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:34:40,827 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:34:40,828 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 12:34:40,832 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 12:34:40,836 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 12:34:40,885 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:34:40,885 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:34:40,888 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:34:40,889 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:34:40,893 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:34:40,893 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_4=0} Honda state: {v_rep~unnamed0~0~false_4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:34:40,925 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:34:40,925 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:34:40,930 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:34:40,930 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_4=1} Honda state: {v_rep~unnamed0~0~true_4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:34:40,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:34:40,962 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:34:40,997 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:34:40,998 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:34:41,014 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:34:41,014 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=-1} Honda state: {ULTIMATE.start_main_~x~0=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=-1}] Lambdas: [0, 12, 1] Nus: [0, 0] [2020-07-01 12:34:41,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:34:41,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-01 12:34:41,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-01 12:34:41,045 INFO L87 Difference]: Start difference. First operand 5 states and 8 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-07-01 12:34:41,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:34:41,054 INFO L93 Difference]: Finished difference Result 3 states and 3 transitions. [2020-07-01 12:34:41,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-01 12:34:41,055 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3 states and 3 transitions. [2020-07-01 12:34:41,056 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:34:41,056 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3 states to 0 states and 0 transitions. [2020-07-01 12:34:41,056 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:34:41,056 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:34:41,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:34:41,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:34:41,057 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:34:41,057 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:34:41,057 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:34:41,057 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 12:34:41,057 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:34:41,057 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:34:41,057 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:34:41,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:34:41 BasicIcfg [2020-07-01 12:34:41,063 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:34:41,066 INFO L168 Benchmark]: Toolchain (without parser) took 2385.17 ms. Allocated memory was 514.9 MB in the beginning and 591.4 MB in the end (delta: 76.5 MB). Free memory was 438.3 MB in the beginning and 519.9 MB in the end (delta: -81.6 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:34:41,066 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:34:41,067 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.71 ms. Allocated memory was 514.9 MB in the beginning and 564.1 MB in the end (delta: 49.3 MB). Free memory was 438.3 MB in the beginning and 532.7 MB in the end (delta: -94.4 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:34:41,067 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.87 ms. Allocated memory is still 564.1 MB. Free memory was 532.7 MB in the beginning and 530.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 50.3 GB. [2020-07-01 12:34:41,068 INFO L168 Benchmark]: Boogie Preprocessor took 19.53 ms. Allocated memory is still 564.1 MB. Free memory was 530.7 MB in the beginning and 529.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:34:41,069 INFO L168 Benchmark]: RCFGBuilder took 221.18 ms. Allocated memory is still 564.1 MB. Free memory was 529.3 MB in the beginning and 518.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 50.3 GB. [2020-07-01 12:34:41,069 INFO L168 Benchmark]: BlockEncodingV2 took 76.01 ms. Allocated memory is still 564.1 MB. Free memory was 518.3 MB in the beginning and 512.9 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:34:41,070 INFO L168 Benchmark]: TraceAbstraction took 146.57 ms. Allocated memory is still 564.1 MB. Free memory was 512.2 MB in the beginning and 503.9 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:34:41,070 INFO L168 Benchmark]: BuchiAutomizer took 1588.31 ms. Allocated memory was 564.1 MB in the beginning and 591.4 MB in the end (delta: 27.3 MB). Free memory was 503.9 MB in the beginning and 519.9 MB in the end (delta: -16.0 MB). Peak memory consumption was 11.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:34:41,074 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 2 locations, 3 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 292.71 ms. Allocated memory was 514.9 MB in the beginning and 564.1 MB in the end (delta: 49.3 MB). Free memory was 438.3 MB in the beginning and 532.7 MB in the end (delta: -94.4 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.87 ms. Allocated memory is still 564.1 MB. Free memory was 532.7 MB in the beginning and 530.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.53 ms. Allocated memory is still 564.1 MB. Free memory was 530.7 MB in the beginning and 529.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. * RCFGBuilder took 221.18 ms. Allocated memory is still 564.1 MB. Free memory was 529.3 MB in the beginning and 518.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 76.01 ms. Allocated memory is still 564.1 MB. Free memory was 518.3 MB in the beginning and 512.9 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 146.57 ms. Allocated memory is still 564.1 MB. Free memory was 512.2 MB in the beginning and 503.9 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1588.31 ms. Allocated memory was 564.1 MB in the beginning and 591.4 MB in the end (delta: 27.3 MB). Free memory was 503.9 MB in the beginning and 519.9 MB in the end (delta: -16.0 MB). Peak memory consumption was 11.3 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: 21]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 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=2occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (2 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has affine ranking function x and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 3 SDtfs, 3 SDslu, 0 SDs, 0 SdLazy, 11 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN2 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 12:34:35.398 ----------------------------------------------- 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_YniQxE/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:34:41.506 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check